Xantrex Technology Power Supply XPD 120 45 User Manual

XPD 7.5-67  
XPD 18-30  
XPD 33-16  
XPD 60-9  
XPD 120-4.5  
Operating Manual  
XPD 500 Watt Series  
Programmable DC  
Power Supply  
 
Operating Manual for  
XPD Series  
Programmable DC  
Power Supply  
 
Limited What does this warranty cover and how long does it last?  
Warranty  
This Limited Warranty is provided by Xantrex Technology, Inc. (“Xantrex”) and  
covers defects in workmanship and materials in your XPD 500 Watt Series DC  
Power Supply. This warranty lasts for a Warranty Period of 5 years from the date of  
purchase at point of sale to you, the original end user customer.  
What will Xantrex do?  
Xantrex will, at its option, repair or replace the defective product free of charge,  
provided that you notify Xantrex of the product defect within the Warranty Period,  
and provided that Xantrex through inspection establishes the existence of such a  
defect and that it is covered by this Limited Warranty.  
Xantrex will, at its option, use new and/or reconditioned parts in performing  
warranty repair and building replacement products. Xantrex reserves the right to use  
parts or products of original or improved design in the repair or replacement. If  
Xantrex repairs or replaces a product, its warranty continues for the remaining  
portion of the original Warranty Period or 90 days from the date of the return  
shipment to the customer, whichever is greater. All replaced products and all parts  
removed from repaired products become the property of Xantrex.  
Xantrex covers both parts and labor necessary to repair the product, and return  
shipment to the customer via a Xantrex-selected non-expedited surface freight  
within the contiguous United States and Canada. Alaska and Hawaii are excluded.  
Contact Xantrex Customer Service for details on freight policy for return shipments  
outside of the contiguous United States and Canada.  
How do you get service?  
If your product requires troubleshooting or warranty service, contact your merchant.  
If you are unable to contact your merchant, or the merchant is unable to provide  
service, contact Xantrex directly at:  
Phone:  
604 422 8595  
Toll Free North America:  
1 800 667 8422  
604 421 3056  
Fax:  
Email:  
ii  
Operating Manual for XPD Series Power Supply  
 
Direct returns may be performed according to the Xantrex Return Material  
Authorization Policy described in your product manual. For some products, Xantrex  
maintains a network of regional Authorized Service Centers. Call Xantrex or check  
our website to see if your product can be repaired at one of these facilities.  
In any warranty claim, dated proof of purchase must accompany the product and the  
product must not have been disassembled or modified without prior written  
authorization by Xantrex.  
Proof of purchase may be in any one of the following forms:  
The dated purchase receipt from the original purchase of the product at point of  
sale to the end user, or  
The dated dealer invoice or purchase receipt showing original equipment  
manufacturer (OEM) status, or  
The dated invoice or purchase receipt showing the product exchanged under  
warranty  
What does this warranty not cover?  
This Limited Warranty does not cover normal wear and tear of the product or costs  
related to the removal, installation, or troubleshooting of the customer’s electrical  
systems. This warranty does not apply to and Xantrex will not be responsible for any  
defect in or damage to:  
a. the product if it has been misused, neglected, improperly installed, physically  
damaged or altered, either internally or externally, or damaged from improper  
use or use in an unsuitable environment;  
b. the product if it has been subjected to fire, water, generalized corrosion,  
biological infestations, and high input voltage from lightning strikes;  
c. the product if repairs have been done to it other than by Xantrex or its authorized  
service centers (hereafter “ASCs”);  
d. the product if it is used as a component part of a product expressly warranted by  
another manufacturer;  
e. the product if its original identification (trade-mark, serial number) markings  
have been defaced, altered, or removed.  
Release A  
iii  
 
Disclaimer Product  
THIS LIMITED WARRANTY IS THE SOLE AND EXCLUSIVE WARRANTY PROVIDED  
BY XANTREX IN CONNECTION WITH YOUR XANTREX PRODUCT AND IS, WHERE  
PERMITTED BY LAW, IN LIEU OF ALL OTHER WARRANTIES, CONDITIONS,  
GUARANTEES, REPRESENTATIONS, OBLIGATIONS AND LIABILITIES, EXPRESS  
OR IMPLIED, STATUTORY OR OTHERWISE IN CONNECTION WITH THE PRODUCT,  
HOWEVER ARISING (WHETHER BY CONTRACT, TORT, NEGLIGENCE, PRINCIPLES  
OF MANUFACTURER’S LIABILITY, OPERATION OF LAW, CONDUCT, STATEMENT  
OR OTHERWISE), INCLUDING WITHOUT RESTRICTION ANY IMPLIED WARRANTY  
OR CONDITION OF QUALITY, MERCHANTABILITY OR FITNESS FOR A  
PARTICULAR PURPOSE. ANY IMPLIED WARRANTY OF MERCHANTABILITY OR  
FITNESS FOR A PARTICULAR PURPOSE TO THE EXTENT REQUIRED UNDER  
APPLICABLE LAW TO APPLY TO THE PRODUCT SHALL BE LIMITED IN DURATION  
TO THE PERIOD STIPULATED UNDER THIS LIMITED WARRANTY.  
IN NO EVENT WILL XANTREX BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT,  
INCIDENTAL OR CONSEQUENTIAL DAMAGES, LOSSES, COSTS OR EXPENSES  
HOWEVER ARISING WHETHER IN CONTRACT OR TORT INCLUDING WITHOUT  
RESTRICTION ANY ECONOMIC LOSSES OF ANY KIND, ANY LOSS OR DAMAGE TO  
PROPERTY, ANY PERSONAL INJURY, ANY DAMAGE OR INJURY ARISING FROM OR  
AS A RESULT OF MISUSE OR ABUSE, OR THE INCORRECT INSTALLATION,  
INTEGRATION OR OPERATION OF THE PRODUCT.  
Exclusions If this product is a consumer product, federal law does not allow an exclusion of  
implied warranties. To the extent you are entitled to implied warranties under federal  
law, to the extent permitted by applicable law they are limited to the duration of this  
Limited Warranty. Some states and provinces do not allow limitations or exclusions  
on implied warranties or on the duration of an implied warranty or on the limitation  
or exclusion of incidental or consequential damages, so the above limitation(s) or  
exclusion(s) may not apply to you. This Limited Warranty gives you specific legal  
rights. You may have other rights which may vary from state to state or province to  
province.  
iv  
Operating Manual for XPD Series Power Supply  
 
Information WITHOUT LIMITING THE GENERALITY OF THE FOREGOING, UNLESS  
SPECIFICALLY AGREED TO BY IT IN WRITING, XANTREX  
a. MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY  
OF ANY TECHNICAL OR OTHER INFORMATION PROVIDED IN MANUALS OR  
OTHER DOCUMENTATION PROVIDED BY IT IN CONNECTION WITH THE  
PRODUCT; AND  
b. ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSSES, DAMAGES,  
COSTS OR EXPENSES, WHETHER SPECIAL, DIRECT, INDIRECT,  
CONSEQUENTIAL OR INCIDENTAL, WHICH MIGHT ARISE OUT OF THE USE OF  
SUCH INFORMATION.  
THE USE OF ANY SUCH INFORMATION WILL BE ENTIRELY AT THE USER’S RISK.  
WARNING: Please refer to your product user manual for limitations on uses of the product.  
Specifically, please note that this power supply is not intended for use in connection  
with life support systems and Xantrex makes no warranty or representation in  
connection with any use of the product for such purposes.  
Limitations  
on Use  
Xantrex Technology, Inc.  
8999 Nelson Way  
Burnaby, British Columbia  
Canada V5A 4B5  
Information Please record the following information when you first open your Power Supply  
package:  
About Your  
Power  
Model Number  
Serial Number  
Purchased From  
Purchase Date  
______________________________________________  
______________________________________________  
______________________________________________  
______________________________________________  
Supply  
Release Release A (2003-06)  
Copyright  
2002 Xantrex Technology Inc. All rights reserved.  
©
Printed in Canada  
Release A  
v
 
Warnings Warnings and cautions are defined and formatted in this manual as shown below.  
and  
Cautions  
WARNING  
Describes a potential hazard which could result in injury or death, or, a procedure  
which, if not performed correctly, could result in injury or death.  
CAUTION  
!
Describes a procedure which, if not performed correctly, could result in damage  
to data, equipment, or systems.  
Power  
Supply  
Safety  
WARNING—High Energy and High Voltage  
Exercise caution when using and calibrating a power supply. High energy levels  
can be stored at the output voltage terminals on a power supply in normal  
operation. In addition, potentially lethal voltages exist in the power circuit and on  
the output and sense connectors of a power supply with a rated output greater  
than 40 V. Filter capacitors store potentially dangerous energy for some time after  
power is removed.  
CAUTION  
!
Operate the power supply in an environment free of flammable gases or fumes. To  
ensure that the power supply’s safety features are not compromised, use the  
power supply as specified in this manual and do not substitute parts or make any  
unauthorized modifications. Contact the service technician for service and repair  
help. Repairs must be made by experienced service technicians only.  
CAUTION  
For Use as a Battery Charger  
!
When you are using any of these power supplies for battery charging applications,  
it is essential to provide an appropriately sized fuse or circuit breaker in series  
between the power supply output and the battery.  
Installation of a protector (fuse or DC circuit breaker) rated for about 115% of the  
maximum current rating of the power supply and designed specifically to interrupt  
the DC voltage of the battery, will provide adequate reverse polarity current  
protection. Where several power supplies are in parallel, it is best to fuse each one,  
rather than one large fuse for all.  
vi  
Operating Manual for XPD Series Power Supply  
 
About This Manual  
This Operating Manual contains operating information for the XPD Series of  
high-performance, switching, laboratory power supplies, available in several voltage  
models at 500 watts. It provides information on features and specifications,  
installation procedures, and basic functions testing, as well as operating procedures  
for using both front panel control and remote analog programming functions.  
Who Should Use This Manual  
This manual is designed for the user who is familiar with basic electrical theory,  
especially as they apply to the operation of power supplies. This implies a  
recognition of Constant Voltage and Constant Current operating modes and the  
control of input and output power, as well as the observance of safe techniques while  
making supply or pin connections and any changes in switch settings.  
Main Sections  
Section 1 Features and Specifications Describes the power supply and lists  
its features and specifications.  
Section 2 Installation Goes through basic setup procedures. Describes  
inspection, cleaning, shipping, and storage procedures. Includes AC input  
connection, basic functions testing, and load and sense lines connections.  
Section 3 Local Operation Provides procedures for local (front panel)  
operation. Includes procedures for using over voltage protection, shutdown function,  
multiple supplies, and over temperature protection.  
Section 4 Remote Operation Covers remote analog programming operation  
and remote monitoring of output voltage and current.  
Manual Revisions  
The current release of this manual is listed below. Updates may be issued as an  
addendum.  
Release A (2003-06)  
Release A  
vii  
 
 
About This Manual  
Power Supply Safety Markings  
Alternating Current  
Off (Supply)  
On (Supply)  
Earth (Ground) Terminal  
Caution (Check manual for  
additional information.)  
Protective Conductor Terminal  
viii  
Operating Manual for XPD Series Power Supply  
 
About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii  
Features and  
Specifications  
Output Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  
Additional Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20  
Remote Programming and Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20  
Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21  
Installation  
Initial Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24  
Return Material Authorization Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25  
Rack Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27  
AC Input Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28  
Making Load Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31  
Inductive Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32  
Connecting Multiple Loads. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32  
Remote Sensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33  
Sense Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34  
Release A  
ix  
 
Local  
Operation  
Constant Current Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36  
Using Over Voltage Protection (OVP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38  
Using Multiple Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40  
Remote Digital Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49  
Remote  
Remote Programming Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50  
Programming Output Current with a 0-10 Vdc Voltage Source. . . . . . . . . . . . . 50  
Readback and Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50  
Voltage and Current Readback. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50  
Status Flags. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51  
x
Operating Manual for XPD Series Power Supply  
 
Section 1. Features and Specifications  
Description  
The XPD Series of DC power supplies provides stable, variable output voltage and  
current for a broad range of development and system requirements. The units use  
high-frequency soft-switching technology to achieve high power density and retain  
a small package size. They feature a built-in analog programming interface, with  
optional RS-232 and IEEE-488 controlled programming, making this series the first  
choice in flexible power system design. See Table 1.1 for the list of available models.  
Table 1.1 500 Watt Series Models  
Model  
7.5-67  
18-30  
33-16  
60-9  
Output Voltage  
0-7.5 V  
Output Current  
0-67 A  
0-18 V  
0-30 A  
0-33 V  
0-16 A  
0-60 V  
0-9 A  
120-4.5  
0-120 V  
0-4.5 A  
Features and Options  
The power supply delivers simultaneous digital displays for both voltage and  
current, and bar graph displays for monitoring transient changes, which gives the  
user the benefit of continuous, up-to-date information.  
Active Power Factor Correction (PFC) delivers lower input current and input  
current harmonics.  
Ten-turn voltage and current controls permits high resolution setting of the  
output.  
The automatic crossover system allows the power supply to automatically  
switch operating modes between current or voltage mode.  
Multiple units can be connected in parallel or series to produce greater diversity  
or for use in high precision applications.  
Short-circuit-proof power outlets give greater operating safety.  
A built-in Analog Programming (APG) Interface provides analog signal control  
of voltage and current, overvoltage protection (OVP), master/slave output  
tracking, and remote ENABLE/DISABLE for safety and precision.  
Release A  
11  
 
     
Section 1. Features and Specifications  
Front Panel Controls  
This unit may be equipped with an optional internal GPIB or RS-232 control for  
remote digital programming and readback.  
Remote output sensing provides load cable compensation up to 5 V/line  
(3 V/line for 7.5 V model).  
Front Panel Controls  
See Figure 1.1 to review the displays, LEDs, indicators, and controls located on the  
power supply’s front panel. Check the following sections for additional descriptions  
“Mechanical Specifications” on page 21  
“Functional Tests” on page 29  
“Standard Operation” on page 35l  
SQR: Service Request.  
On M9B equipped units only  
REM: Supply is under  
Remote Control  
Digital Display of DC  
Output (volts, amperes)  
S/D: Unit is in Stand By.  
Supply output is disabled.  
Analog Bar Graph Display  
OVP ADJ: Single turn Over  
Voltage Protection threshold  
adjusting potentiometer  
Voltage Mode Operation  
Indicator (green LED)  
Current Mode Operation  
Indicator (red LED)  
10-turn Voltage Control Knob  
AC Power Switch  
10-turn Current Control Knob  
Return (+) Output BInding Post  
(red)  
Return (-) Output BInding Post (black)  
Safety Ground Binding Post (green)  
Figure 1.1 500 Watt Series Power Supply Front Panel  
12  
Operating Manual for XPD Series Power Supply  
 
   
Section 1. Features and Specifications  
Rear Panel Connectors  
Rear Panel Connectors  
Remote Sensing  
Port: Remove  
Default Jumpers to  
use Remote Sensing  
Blank Sub-Plate:  
Replaced if Digital  
Programming  
Option is Installed  
Fan Exhaust  
Vents:  
Do not obstruct  
Analog  
Programming and  
Readback  
Busbar Cover  
Output Busbars  
IEC 320 AC Input  
Connector  
Figure 1.2 500 Watt Power Supply Rear Panel (7.5 V and 18 V)  
Remote Sensing  
Port: Remove  
Default Jumpers to  
use Remote Sensing  
DC Output  
Connector:  
33 V, 60 V and  
120 V models  
IEC 320 AC Input  
Connector  
Figure 1.3 500 Watt Power Supply Rear Panel (33 V to 120 V)  
Release A  
13  
 
     
Section 1. Features and Specifications  
Rear Panel Connectors  
Output Low Voltage Models Equipped with positive and negative busbars. The busbars  
are offset to facilitate load cable connections.  
Connectors  
WARNING  
Disconnect the AC input before making any connections to the unit.  
.
Figure 1.4 Output Busbars - note polarity markings  
(Low Voltage Models)  
High Voltage Models High voltage models are equipped with a 4-terminal output  
block. The top two are positive terminals whereas the lower two are negative. Screw  
clamps are used to secure load connections.  
WARNING  
Disconnect the AC input before making any connections. Lethal voltages may be  
present at the output terminals for up to 15 seconds after the AC power has been  
removed.  
Figure 1.5 Output Terminal - note polarity markings  
(High Voltage Models)  
14  
Operating Manual for XPD Series Power Supply  
 
 
Section 1. Features and Specifications  
Rear Panel Connectors  
Rear Panel The J210 Analog Interface connector is a 15-pin female DSUB connector located on  
the rear panel. See Figure 1.6. Use the J210 programming, monitoring, and  
shutdown 15 pin DSUB connector for remote programming and monitoring  
functions. See Figure 1.2 for the location of the J210 connector at the rear panel. We  
recommend that you mate the J210 connector with a 15-pin male connector, such as  
a Tyco 747908-2 or equivalent.  
J210  
Connector  
The J210 connector provides access to the following functions:  
Remote programming of both output voltage and current  
Calibrated readback signals for remote monitoring of output voltage and output  
current  
Isolated remote shutdown function using a 5-15 V signal  
See Figure 1.6 for a graphic presentation of the J210 connector and its pinouts.  
1
9
8
15  
Figure 1.6 Analog Interface Programming and Monitoring J210 Connector  
See Table 1.2 for a list of the J210 connector pin numbers, their references, and  
corresponding functions.  
Release A  
15  
 
     
Section 1. Features and Specifications  
Rear Panel Connectors  
Table 1.2 Rear Panel J210 Connector Pins and Functions  
Pin  
Reference Name  
Function  
J210-1  
TTL S/D  
RTN  
Shutdown Signal Return Return for shutdown signal1.  
()  
J210-2  
J210-3  
J210-4  
J210-5  
TTL S/D  
N/C  
Shutdown Input (+)  
No connection  
Input for shutdown signal.1  
None.  
None.  
N/C  
No connection  
IPGM  
Output Current Limit  
Programming Input  
Input for current limit programming  
signals from an analog device.  
J210-6  
J210-7  
VRMT  
SELECT  
Remote Output Voltage  
Programming Select  
Selects remote output voltage  
programming when to jumpered to  
pin 8.2  
IRMT  
SELECT  
Remote Output Current  
Limit Programming  
Select  
Selects remote output current limit  
programming when jumpered to  
pin 8.2  
J210-8  
J210-9  
AGND  
N/C  
Auxiliary Ground  
No connection  
Auxiliary ground.  
None.  
J210-10 N/C  
J210-11 N/C  
J210-12 IMON  
No connection  
None.  
No connection  
None.  
Output current monitor  
Output for output current monitor  
signal.  
J210-13 PGM/MON Program/Monitor Return Return for voltage and current  
RTN  
program and monitor signals.  
J210-14 VPGM  
Output Voltage  
Programming Input  
Input for voltage programming  
signals from an analog device.  
J210-15 VMON  
Output Voltage Monitor  
Output for output voltage monitor  
signal.  
1. The TTL shutdown circuit is isolated to 500 V from the power supply output and chassis.  
2. Jumpering pins J210-6, J210-7, and J210-8 will select both remote output voltage  
programming and remote output current limit programming.  
16  
Operating Manual for XPD Series Power Supply  
 
Section 1. Features and Specifications  
Rear Panel Connectors  
Making J210  
Connections  
CAUTION  
!
!
!
Program/monitor signal and return are internally connected to the power  
supply negative output. Do not attempt to bias these away from that  
potential.  
CAUTION  
To maintain the isolation of the power supply output and prevent ground  
loops, use an isolated (ungrounded) programming source when operating  
the power supply via remote analog control at the J210 connector.  
CAUTION  
Before making connections from external circuits to the J210 connector, turn  
the power supply OFF and wait until the front panel displays have gone out.  
Wiring  
WARNING  
There is a potential shock hazard at the output when using a power supply  
with a rated output greater than 40 V. Use load wiring with a minimum  
insulation rating equivalent to the maximum output voltage of the power  
supply. For example, select TEW, 105 °C, 300 V wiring for use with a  
120 V, 4.5 A power supply.  
For most connectors and jumpers, use any suitable wire such as 16 to 24 AWG  
stranded wire. For lowest noise performance, use shielded pair wiring of 16 to 24  
AWG. Use the shortest leads possible. Ground the shield to pin 8 (auxiliary ground)  
on the J210 connector or to the chassis via one of the J210 connector screws.  
Release A  
17  
 
   
Section 1. Features and Specifications  
Electrical Specifications  
Electrical Specifications  
These specifications are warranted over a temperature range of 0 °C to 50 °C  
with local sense. Above 50 °C, derate output linearly to zero at 70 °C. Nominal  
line voltages are 100/120/200/230/240 Vac. Specifications and characteristics  
refer to a single output model unless otherwise stated, and specifications apply  
to either front or rear outputs unless noted.  
Table 1.3 Electrical Specifications for 7.5 V to 120 V Models  
Models  
7.5-67  
18-30  
33-16  
60-9  
120-4.5  
Output Ratings:  
Output Voltage  
Output Current  
Output Power  
0-7.5 V  
0-67 A 1  
502.5 W  
0-18 V  
0-30 A  
540 W  
0-33 V  
0-16 A  
528 W  
0-60 V  
0-9 A  
540 W  
0-120 V  
0-4.5 A  
540 W  
Line regulation: 2  
Voltage (0.01% of Vmax + 2 mV)  
Current (0.01% of Imax + 1 mA)  
2.8 mV  
7.7 mV  
3.8 mV  
4 mV  
5.3 mV  
2.6 mV  
8 mV  
1.9 mV  
14 mV  
1.5 mV  
Load Regulation:3  
Voltage (0.01% of Vmax + 2 mV)  
Current (0.01% of Imax + 5 mA)  
2.8 mV  
11.7 mA  
3.8 mV  
8 mA  
5.3 mV  
6.6 mA  
8 mV  
5.9 mA  
14 mV  
5.5 mA  
Meter Accuracy  
Voltage (1% of Vmax + 1 count)  
Current (1% of Imax + 1 count)  
0.2 V  
0.8 A  
0.3 V  
0.4 A  
0.5 V  
0.3 A  
0.7 V  
0.2 A  
2.2 V  
0.2 A  
Output Noise (0-20 MHz):  
Voltage (p-p)  
50 mV  
50 mV  
75 mV  
125 mV  
180 mV  
Output Ripple (0-100 kHz) (rms):  
Voltage  
5 mV  
250 mA  
5 mV  
250 mA  
7.5 mV  
150 mA  
10 mV  
150 mA  
20 mV  
75 mA  
Current4  
Drift (60 minutes):5  
Voltage (0.15% of Vmax)  
Current (0.3% of Imax)  
11.3 mV  
201 mA  
27 mV  
90 mA  
49.5 mV  
48 mA  
90 mV  
27 mA  
180 mV  
13.5 mA  
Drift (8 hours): 6  
Voltage (0.03% of Vmax)  
Current (0.05% of Imax)  
2.3 mV  
34 mA  
5.4 mV  
15 mA  
9.9 mV  
8 mA  
18 mV  
4.5 mA  
36 mV  
2.3 mA  
Temperature Coefficient: 7  
Voltage (0.015% of Vmax/º C  
Current (0.02% of Imax/º C  
1.2 mV  
13.4 mA  
2.7 mV  
6 mA  
5 mV  
3.2 mA  
9 mV  
1.8 mA  
18 mV  
0.9 mA  
OVP Adjustment Range:  
Minimum (5% of Vmax)  
Maximum (110% of Vmax)  
0.4 V  
8.3 V  
0.9 V  
19.8 V  
1.7 V  
36.3 V  
3 V  
66 V  
6 V  
132 V  
Efficiency 8  
81%  
83%  
85%  
85%  
84%  
18  
Operating Manual for XPD Series Power Supply  
 
 
Section 1. Features and Specifications  
Additional Specifications  
1. Front output current limited to 30 A maximum.  
2. For input voltage variation over the AC input voltage range, with constant rated load.  
3. For 0 to 100% load variation, with constant nominal line voltage (rear output only).  
4. Current mode noise is measured from 10% to 100% of rated output voltage, full current, resistive load.  
5. Maximum drift over 60 minutes with constant line, load, and temperature, after power on.  
6. Maximum drift over 8 hours with constant line, load, and temperature, after 60-minute warm-up.  
7. Change in output per ° C change in ambient temperature, with constant line and load.  
8. Typical efficiency is measured at 120 V and full output power.  
Additional Specifications  
Rise Time (No load, full load)  
Fall Time (Full load)  
50 ms  
50 ms  
Fall Time (No load)  
400 ms  
1 ms  
Voltage Mode Transient Response  
Time delay from power on until output stable  
3 s maximum  
Input Conditions  
Rated AC Input Voltage  
100/120/200/230/240 Vac, universal input  
700 W  
Maximum AC Input Power  
Operational AC Input Voltage Range  
Maximum Input Current  
85 to 264 Vac; power factor corrected  
7 A maximum at 100 Vac, 6 A maximum at  
120 Vac, 3 A maximum at 220 Vac  
Input Frequency Range  
Power Factor  
47 to 63 Hz  
0.98 minimum for full load at nominal  
voltage  
Input Harmonic Distortion  
Current harmonics meet IEC 1000-3-2  
Release A  
19  
 
   
Section 1. Features and Specifications  
Additional Characteristics  
Additional Characteristics  
Over Temperature Protection (OTP)  
Unit latches off when T > rated maximum.  
Auto restart when cool  
OVP Control  
Adjustable on front panel single turn control.  
110% setting 5% of rated output  
Switching Frequency  
Output Hold-up Time  
Insulation Resistance  
125 kHz (250 kHz output ripple)  
10 ms @120 Vac input  
Input to chassis: >30 M ohm, with 500 Vdc  
Output to chassis: >20 M ohm, with  
1000 Vdc  
Isolation Voltage  
Input to output: 1350 Vac  
Remote Programming and Monitoring  
Remote S/D and Interlock1  
5–15 V signal or TTL-compatible output,  
selectable logic. TTL input impedance: 2 k  
(in series with one diode drop)  
Remote Analog Programming (Full  
Scale Input)  
Voltage and current programming inputs  
(source must be floating): 0-10 V voltage  
sources.  
Input impedance (V and I): 20 k  
Remote Monitoring  
Output voltage and current: 0-10 V  
Output impedance (V and I): approximately  
221 ohm; output short circuit current:  
approximately 20 mA (load must be floating)  
Remote Programming and Monitoring  
Accuracy  
1% of full scale output for the default range  
Maximum Remote Sense Line Drop  
Compensation  
7.5 V model: 3 V/line;2  
18-120 V models: 5 V/line2  
Optional Digital Control  
RS-232, GPIB interfaces  
1. Isolated from power supply output and chassis to 500 V.  
2. Line drop must be deduced from supply maximum output.  
20  
Operating Manual for XPD Series Power Supply  
 
   
Section 1. Features and Specifications  
Environmental Specifications  
Environmental Specifications  
Operating Temperature Range  
0 to 50 °C  
Storage Temperature Range  
Humidity Range  
-40 to 85 °C  
Up to 95% RH non-condensing  
Operating Altitude  
Maximum 6,500 feet (2,000 m)  
Derate maximum operating temperature by  
1 °C per 1,000 feet (300 m) for operation  
between 5,000 feet (1500 m) and 6,500 feet  
(2,000 m)  
Storage Altitude  
Up to 50,000 feet (15 000 m)  
Installation Category  
Pollution Degree  
II  
2
Mechanical Specifications  
Front Panel Voltage and Current  
Control  
10-turn voltage and current potentiometers  
Front Panel Voltage Control Resolution 0.02% of maximum voltage  
Front Panel Current Control Resolution 0.02% of maximum current  
Front Panel Voltage and Current  
Meters  
3-digit green numeric LED displays. For  
meter accuracy, see Table 1.3, on page 18  
AC Input Connector Type  
IEC 320 connector, appropriate power cord  
provided for destination country  
Input Fuses  
Non-user accessible, both lines fused.  
Output Connector  
Front panel: 5-way binding posts maximum  
current limit 30 A  
Rear panel: 7.5–18 V models: bus bars with  
0.3” holes. 33–120 V models: wire clamp  
connectors  
Sense Connector  
5 terminal wire clamp connector  
15-pin female DSUB connector  
Analog Programming Connector  
Chassis Ground  
Front panel binding post; chassis is  
grounded through power cord  
Cooling  
Fan cooled. Variable speed fan. Air flows  
from front to rear, with vents on top, bottom,  
and sides  
Release A  
21  
 
     
Section 1. Features and Specifications  
Mechanical Specifications  
Mounting  
Optional 19 in. (483 mm) rack mount kit  
(mounts 4 units).  
Maximum Dimensions  
(single output)  
Free standing:  
Height: 5.55 in. (140 mm)  
Width: 4.24 in (108 mm)  
Mounted:  
Height: 5.25 in.(133 mm) (3 U).  
Width: 1/4 rack (4 per 19 in. rack)  
Depth: 13 in. (330 mm) (not including front  
panel controls and front and back output  
terminals)  
Weight  
Single output: 9.0lb. (4.1 kg)  
Approvals  
CSA certified to UL 3101-1, CSA C22.2 No.  
1010-1, and 1010-1B  
FCC Part 15B and Industry Canada Class A  
CE Marked for Low Voltage Directive and  
EMC Directive (Class A emissions)  
Accessories  
Options  
Rack mount kit  
GPIB, RS-232 interfaces  
22  
Operating Manual for XPD Series Power Supply  
 
Section 2. Installation  
Introduction  
This section provides recommendations and procedures for inspecting, installing,  
and testing the power supply.  
Basic Setup Procedure  
See Table 2.1 for a summary of the basic setup procedure and a view of the  
subsections in this section. Use this procedure as a quick reference if you are  
unfamiliar with the installation requirements for the power supply. Each step in the  
procedure refers to subsequent sections which contain more details. Follow each step  
in the sequence given.  
Table 2.1 Basic Setup Procedure  
Step # Description Action  
1
Inspection  
Perform an initial physical  
inspection of the power  
supply.  
Packaging” on page 24  
2
Installation  
Install the supply (bench or “Location, Mounting, and  
rack mount). Ensure  
adequate ventilation.  
3
4
Input Power Connect AC input power.  
“AC Input Power Connection”  
on page 28  
Test  
Perform functional tests for “Functional Tests” on page 29  
voltage mode operation,  
current mode operation,  
and front panel controls.  
5
6
Load  
Connect the load.  
“Load Connection” on page 30  
“Remote Sensing” on page 33  
Sensing  
Connect sensing lines.  
Release A  
23  
 
     
Section 2. Installation  
Inspection, Cleaning, and Packaging  
Inspection, Cleaning, and Packaging  
Initial When you first receive your unit, perform a quick physical check.  
Inspection  
1. Inspect the unit for scratches and cracks in the chassis and front panel, and for  
2. If you see external damage or suspect internal damage, have a service technician  
check the unit before attempting to use it. If the unit is damaged, save all packing  
materials and notify the carrier immediately. See packing instructions in  
“Returning Power Supplies to the Manufacturer” on page 25.  
3. Ensure that the packing box contains the 7.5' (2.5 m) power cord.  
Periodic No routine servicing of the power supply is required, except for periodic cleaning.  
Whenever a unit is removed from operation, clean the metal surfaces with naptha or  
an equivalent solvent and the front panel with a weak solution of soap and water. Use  
low-pressure compressed air to blow dust from components on the printed circuit  
boards.  
Cleaning  
24  
Operating Manual for XPD Series Power Supply  
 
     
Section 2. Installation  
Returning Power Supplies to the Manufacturer  
Returning Power Supplies to the Manufacturer  
Return Before returning a product directly to Xantrex you must obtain a Return Material  
Authorization (RMA) number and the correct factory “Ship To” address. Products  
must also be shipped prepaid. Product shipments will be refused and returned at your  
expense if they are unauthorized, returned without an RMA number clearly marked  
on the outside of the shipping box, if they are shipped collect, or if they are shipped  
to the wrong location.  
Material  
Authorization  
Policy  
When you contact Xantrex to obtain service, please have your operating manual  
ready for reference and be prepared to supply:  
The serial number of your product  
Information about the installation and use of the unit  
Information about the failure and/or reason for the return  
A copy of your dated proof of purchase  
When you ship:  
1. Package the unit safely following the procedures on page 26, preferably using  
the original box and packing materials. Please ensure that your product is  
shipped fully insured in the original packaging or equivalent. This warranty will  
not apply where the product is damaged due to improper packaging.  
2. Include the following:  
The RMA number supplied by Xantrex Technology Inc clearly marked on  
the outside of the box.  
A return address where the unit can be shipped. Post office boxes are not  
acceptable.  
A contact telephone number where you can be reached during work hours  
A brief description of the problem  
Ship the unit prepaid to the address provided by your Xantrex customer service  
representative.  
If you are returning a product from outside of the USA or Canada:  
In addition to the above, you MUST include return freight funds and are fully  
responsible for all documents, duties, tariffs, and deposits.  
If you are returning a product to a Xantrex Authorized Service Center (ASC):  
A Xantrex return material authorization (RMA) number is not required. However,  
you must contact the ASC prior to returning the product or presenting the unit to  
verify any return procedures that may apply to that particular facility.  
Release A  
25  
 
   
Section 2. Installation  
Returning Power Supplies to the Manufacturer  
Packaging for Follow these instructions to prepare the unit for shipping or storage.  
Shipping or  
1. When returning the unit or sending it to the service center, attach a tag to the unit  
Storage  
stating its model number (available from the front panel label) and its serial  
number (available from the rear panel label). Give the date of purchase and an  
invoice number, if you have it, as well as a brief description of the problem.  
2. For storage or shipping, repack the power supply in its original container. If the  
original container is not available, seal the unit in a plastic bag and then pack it  
in a 200 lb. (90 kg) test, corrugated cardboard carton large enough to allow 2  
inches (5 cm) of cushioning material to surround the unit. Use a material such as  
foam slabs or chips.  
3. Label the carton as shown in Figure 2.1.  
4. If shipping, mark the address of the service center and your return address on the  
carton.  
5. If storing, stack no more than eight cartons high. Check the storage temperature  
range and storage altitude specification in “Environmental Specifications” on  
page 21.  
POWER SUPPLY  
Model Number:_______________________  
Serial Number: _______________________  
FRAGILE — ELECTRONIC EQUIPMENT  
Figure 2.1 Shipping or Storage Carton Label  
26  
Operating Manual for XPD Series Power Supply  
 
   
Section 2. Installation  
Location, Mounting, and Ventilation  
Location, Mounting, and Ventilation  
You may use the 500 watt power supply in rack-mounted or in benchtop  
applications.  
Rack  
Mounting  
WARNING  
Ensure that any mounting screws do not penetrate more than 1/8 in. (3.0 mm)  
into the bottom and/or back of the unit  
The power supply is designed to fill 1/4 of a standard 19 in. (483 mm) equipment  
rack.  
Units can be combined with 300 watt and 60 watt series models for customer  
applications. Contact the manufacturer about the RM (Rack Mount Kit) option.  
Ventilation Whether operating the power supply in a rack or on a bench, allow cooling air to  
reach the ventilation inlets on the bottom and sides of the unit. Ensure that  
rack-mounted units have 1 U (1.75 in./44.5 mm) between units. Ventilation space at  
the top and bottom, or sides of the power supply is essential for proper operation.  
See “Environmental Specifications” on page 21, for the operating ambient  
temperature range and the operating altitude specification.  
Release A  
27  
 
     
Section 2. Installation  
AC Input Power Connection  
AC Input Power Connection  
WARNING  
There is a potential shock hazard if the power supply chassis and cover are not  
connected to an electrical ground via the safety ground in the AC input  
connector. Ensure that the power supply is connected to a grounded AC outlet  
with the recommended AC input cord configured for the available line voltage as  
described in this section.  
WARNING  
Disconnect AC power from the unit before removing the cover. Even with the  
front panel power switch in the OFF position, live line voltages are exposed  
when the cover is removed. Repairs must be made only by experienced service  
technicians.  
CAUTION  
!
When the power switch is turned on, the output voltage or current previously set  
AC Input The AC input connector is a standard IEC 15 A, 250 V male connector located on  
the power supply’s rear panel. See Figure 1.2 500 Watt Power Supply Rear Panel  
(7.5 V and 18 V), p. 13.  
Connector  
AC Input  
Cord  
WARNING  
The AC input cord is the disconnect device for the power supply. The plug must  
be readily identifiable by and accessible to the operator. The input cord must be  
no longer than 9.85 feet (3 m).  
The AC input cord that we provide is appropriate to the country of destination. If you  
require a special cord, contact us.  
28  
Operating Manual for XPD Series Power Supply  
 
       
Section 2. Installation  
Functional Tests  
Functional Tests  
These functional test procedures include power-on and front panel function checks  
as well as voltage and current mode operation checks.  
Power-on 1. Ensure that the front panel power switch is in the extended (OFF) position and  
Check  
the voltage and current controls are in their fully counter-clockwise positions.  
2. Ensure that the AC line voltage is within operating range.  
3. Plug the line cord into a grounded AC outlet.  
4. Push the power switch to turn on the power supply.  
After a short power-on delay, the display and the red current mode LED lights. The  
meter reading remains at zero.  
For more about standard operations, see “Standard Operation” on page 35.  
Voltage Mode 1. Ensure that the front panel voltage and current control are turned fully  
Operation  
Check  
counter-clockwise.  
2. Set the power switch to ON.  
3. Rotate the current control one half-turn clockwise. Slowly rotate the voltage  
control clockwise and observe the digital meter. Minimum control range should  
be from zero to maximum rated output. Observe the bar graph meter to see that  
it tracks as the voltage rises. Verify that the voltage mode indicator light is ON.  
4. Set the power switch to OFF.  
Current Mode 1. Ensure that the front panel power switch is set to OFF.  
Operation  
2. Rotate the voltage and current controls fully counter-clockwise.  
Check  
3. Rotate the voltage control one half-turn clockwise.  
4. Connect a short circuit across the output terminals. Use leads of sufficient  
current carrying capacity.  
5. Set the power switch to ON.  
6. Rotate the current control slowly clockwise. The control range should be from  
zero to the maximum rated output1. Also check that the current bar graph meter  
follows the rise in current and that the current mode indicator light is ON.  
7. Set the power switch to OFF.  
1. On 7.5-67 model, front panel current is limited to 30 A. Short the rear busbar terminals to test the  
full current range is required.  
Release A  
29  
 
         
Section 2. Installation  
Load Connection  
Load Connection  
This section provides recommendations for load wires and covers single and  
multiple load configurations.  
Load Wiring Make load connections at the rear of the power supply at the positive (+) and  
negative () terminals.  
To select wiring for connecting the load to the power supply, consider the following  
factors:  
insulation rating of the wire  
current carrying capacity of the wire  
maximum load wiring length for operation with sense lines  
noise and impedance effects of the load lines  
Insulation Rating Use load wiring with a minimum insulation rating equivalent  
to the maximum output voltage of the power supply.  
Current Carrying Capacity As a minimum, load wiring must have a current  
carrying capacity greater than the output rating of the power supply. This ensures that  
the wiring will not be damaged, even if the load is shorted. Table 2.2 shows the  
maximum current rating, based on 450 A/cm2, for various gauges of wire rated for  
105 °C operation. Operating at the maximum current rating results in an  
approximately 30 °C temperature rise for a wire operating in free air. Where load  
wiring must operate in areas with elevated ambient temperatures or bundled with  
other wiring, use larger gauges or wiring rated for higher temperatures.  
Table 2.2 Current Carrying Capacity for Load Wiring  
Wire Size  
Maximum Current  
Wire Size  
Maximum Current  
(AWG)  
(A)  
2.5  
4
(AWG)  
(A)  
20  
18  
6
4
61  
97  
16  
14  
12  
10  
6
2
1
1/0  
2/0  
155  
192  
247  
303  
10  
16  
21  
36  
8
30  
Operating Manual for XPD Series Power Supply  
 
     
Section 2. Installation  
Load Connection  
WIRE GAUGE (AWG)  
16  
12  
8
4
1
2/0  
14  
10  
6
2
1/0  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
LOAD CURRENT (AMPS)  
Figure 2.2 Maximum Load Wire Length for 1 V Line Drop  
Noise and Impedance Effects To minimize noise pickup or radiation, use  
shielded pair wiring of shortest possible length for load wires. Connect the shield to  
the power supply chassis. Where shielding is impossible or impractical, simply  
twisting the wires together will offer some noise immunity.  
Making Load  
Connections  
WARNING  
There is a shock hazard at the load when using a power supply with a rated  
output greater than 40 V. To protect personnel against accidental contact with  
hazardous voltages, ensure that the load, including connections, has no live  
parts which are accessible. Also ensure that the insulation rating of the load  
wiring and circuitry is greater than or equal to the maximum output voltage of the  
power supply.  
CAUTION  
!
When making connections to the bus bars, ensure that each terminals’ mounting  
hardware and wiring assembly are placed to avoid touching the other terminal  
and shorting the power supply output. Heavy connecting cables must have some  
form of strain relief to avoid loosening the connections or bending the bus bars.  
Release A  
31  
 
 
Section 2. Installation  
Load Connection  
Inductive To prevent damage to the power supply from inductive kickback, connect a diode  
across the output. The diode must be rated at least 20% greater than the supply’s  
output voltage and have a current rating greater than or equal to the supply’s output  
rating. Connect the cathode to the positive output and the anode to the return.  
Loads  
Where positive load transients such as back EMF from a motor may occur, connect  
a transorb or a varistor across the output to protect the power supply. The breakdown  
voltage rating for the transorb or varistor must be approximately 10% higher than the  
rated supply output.  
Connecting Proper connection of distributed loads is an important aspect of power supply use.  
Two common methods of connection are the parallel power distribution method and  
the radial power distribution method.  
Multiple  
Loads  
Radial Power Distribution Method To connect distributed loads, we  
recommend that you use this method. With this method, you connect power to each  
load individually from a single pair of terminals designated as the positive and  
negative distribution terminals. This pair of terminals may be the power supply  
output terminals, the load terminals, or a distinct set of terminals specially  
established for distribution. In this scheme, there are no ground loops and the effect  
of one load upon another is minimized.  
Connect the remote sense leads to these terminals to compensate for losses and  
minimize the effect of one load upon another. See “Remote Sensing” below for more  
information about using remote sensing.  
Parallel Power Distribution Method This distribution method involves  
connecting leads from the power supply to one load, from that load to the next load,  
and so on for each load in the system. The voltage at each load depends on the current  
drawn by the other loads and DC ground loops are developed. Except for low-current  
applications, we recommend that you do not use this method.  
32  
Operating Manual for XPD Series Power Supply  
 
   
Section 2. Installation  
Remote Sensing  
Remote Sensing  
Remote sensing permits you to shift the regulation point of the power supply from  
the output terminals to the load or other distribution terminals. It compensates for  
voltage losses of up to a total of 5 V in the power leads supplying the load (3 V on  
7.5 V unit).  
For best noise performance, use shielded pair wiring of 16 to 24 AWG for remote  
sense lines.  
Remove default jumpers (Pins 1-2 and 4-5)  
Connect sense lines as close to  
load as possible or at point to be  
regulated  
In order to connect the sense wires, follow this procedure:  
1. Using a small flat blade screwdriver, remove the two sense jumpers on the J207  
connector.  
2. Using the appropriate gauge shielded wire (see “Sense Wiring”), connect one  
end to the load or point at which load is to be regulated.  
3. Connect the positive sense line from the load to J207-4 (+SNS) and the return or  
(-SNS).  
Release A  
33  
 
   
Section 2. Installation  
Remote Sensing  
To compensate for losses in power leads connected to the output, your power supply  
provides sense connections beside the output terminals. With remote sense leads in  
place, the supply regulates to the displayed voltage at the point where the sense lines  
are connected to the output leads (provided the sum of these lead losses does not  
exceed 5 V per line or 3.5 V per line for a 7.5 V unit). With the sense lines  
disconnected, the supply regulates the voltage at the output terminals.  
Do not operate the supply with sense lines connected to the load without also  
connecting the load power leads to the output terminals. Avoid reversing positive and  
negative lead connections.  
Note Long load leads with large capacitance at the load and remote sensing can cause  
voltage instability due to inductance of the load leads. Measures to reduce inductance  
and/or capacitance (raising resonant frequency) or using local sense can be beneficial  
in stabilizing the system.  
Sense Wiring  
WARNING  
There is a potential shock hazard at the sense connectors when using a power  
supply with a rated output greater than 40 V. Select wiring with a minimum  
insulation rating equivalent to the maximum output voltage of the power supply  
for use as local sense jumpers or for remote sense wires. Ensure that  
connections at the load end are shielded to prevent contact with hazardous  
voltages.  
34  
Operating Manual for XPD Series Power Supply  
 
 
Section 3. Local Operation  
Introduction  
See “Standard Operation” for a brief explanation of Constant Voltage and  
See “Using Over Voltage Protection (OVP)” on page 38, “Using the Shutdown  
on these topics.  
See “User Diagnostics” on page 45, for troubleshooting information for the  
operator.  
Turn to Section 4. Remote Operation for descriptions of remote programming  
options and remote monitoring of the supply.  
Standard Operation  
This power supply has two basic operating modes: Constant Voltage Mode and  
Current Mode, and two control modes: Local Control Mode (default setting) and  
Remote Programming Mode. Both operating modes are available regardless of  
which control mode is used.  
Operating The mode in which the power supply operates at any given time depends on the  
combination of:  
Modes and  
Automatic  
Crossover  
output current limit setting ISET  
resistance of the attached load RL  
See Figure 3.1 for a graphical representation of the relationships between these  
variables.  
Release A  
35  
 
         
Section 3. Local Operation  
Standard Operation  
Output  
Voltage  
VSET  
ISET  
Constant Voltage  
Mode Region  
RL  
VSET  
ISET  
RL  
Crossover Point  
Where  
RL  
VSET  
Load Resistance  
VSET  
ISET  
VSET  
Output Voltage Setting  
Constant Current RL  
Mode Region  
ISET  
Output Current Limit Setting  
Output  
Current  
0
0
ISET  
Figure 3.1 Operating Modes  
Note The control circuits have been designed to allow you to set output voltage and  
current up to 1.5% over the model-rated maximum values. The power supply will  
operate within these extended ranges, but we cannot guarantee full performance to  
specification.  
Constant The power supply will operate in constant voltage mode whenever the load current  
IL is less the current limit setting ISET, or: IL < ISET (Note: IL = VSET / RL). In  
constant voltage mode, the power supply maintains the output voltage at the selected  
value (VSET) while the load current IL varies with the load requirements.  
Voltage Mode  
Operation  
To use the power supply in Constant Voltage mode, either set the current limit to  
maximum by turning the current control to its extreme clockwise position, or take  
the precaution of setting a desired maximum current, then set the voltage control to  
the desired voltage.  
Constant The power supply will operate in Constant Current mode whenever the load  
resistance is low enough that the load current IL is greater than the current limit  
setting ISET, or: IL > ISET. In constant current mode, the power supply maintains the  
output current at the selected value (ISET) while the load voltage varies with the load  
requirements.  
Current Mode  
Operation  
Setting the Set the Current Limit by following the steps below:  
Current Limit  
1. Connect a shorting lead across the output terminals.  
2. Turn the voltage control a half-turn clockwise.  
3. Set the desired maximum current limit by turning the current control slowly  
clockwise to the desired level.  
36  
Operating Manual for XPD Series Power Supply  
 
       
Section 3. Local Operation  
Shipped Configuration (Local Control Mode)  
4. Disconnect the shorting lead from the output terminals. The power supply will  
now automatically switch into current limiting mode (current regulation) as  
soon as the preset current level is reached.  
Setting the To operate the supply in CI mode:  
Supply to  
Operate in CI  
Mode  
1. Set the current limit as described above.  
2. Set the voltage control fully clockwise or to the compliance voltage of the  
circuit.  
As soon as the supply starts operating in current mode, the red current mode  
LED will turn on.  
Automatic The automatic crossover system allows the power supply to automatically switch  
operating modes in response to changing load requirements. For example, if the load  
current attempts to increase above the setting of the current adjust control, the unit  
will switch automatically from Constant Voltage to Constant Current mode. If you  
lower the load requirements, the supply will automatically return to Constant Voltage  
mode.  
Mode  
Crossover  
Shipped Configuration (Local Control Mode)  
The factory ships units already configured for local control (front panel) operation.  
See Table for a summary of this configuration.  
Table 3.1 Shipped Configuration (Local Control Mode)  
Local Control Configuration  
Use the front panel controls to adjust  
output voltage and current limit  
settings.  
See Section 4, page 49, for remote  
analog programming procedures.  
The OVP set point is adjusted at the  
front panel to over 110% of rated  
output voltage.  
See “Using Over Voltage Protection  
(OVP)” on page 38, for the  
adjustment procedure.  
Release A  
37  
 
     
Section 3. Local Operation  
Using Over Voltage Protection (OVP)  
Using Over Voltage Protection (OVP)  
The OVP circuit protects the load in the event of a remote programming error, an  
incorrect voltage control adjustment, or a power supply failure. The protection  
circuit monitors the output voltage at the output of the power supply and will shut  
down the main power converter whenever a preset voltage limit is exceeded. Set the  
preset voltage limit (also called the setpoint or trip level) using the  
screwdriver-adjustable front panel OVP ADJ potentiometer, or via one of the  
optional GPIB or RS-232 programming interfaces.  
Defining the 1. Turn the power supply OFF.  
OVP Setpoint  
2. Using a small, flat-blade screwdriver, turn the OVP ADJ potentiometer screw to  
a fully clockwise position.  
3. Turn the power supply ON. Set the output to the desired trip voltage.  
4. Slowly turn the OVP ADJ potentiometer screw counter-clockwise until the red  
OVP indicator lamp lights.  
5. Push the power switch to OFF.  
6. Turn the voltage control knob to minimum.  
7. Push the power switch ON and increase the voltage to check that the power  
supply shuts off the output at the set voltage.  
8. Reset the OVP circuit after activation by removing the overvoltage condition  
and turning the unit OFF and back ON, or, by momentarily activating the TTL  
remote shutdown circuit. See “Using the Shutdown Function” on page 39, for  
information about shutdown circuit operation.  
OVP Circuit 1. Turn power supply ON.  
Check  
2. Adjust voltage to maximum. Adjust the front panel OVP ADJUST  
potentiometer counter-clockwise.  
3. The OVP LED will light up and the output of the power supply will drop to near  
zero.  
4. Rotate the front panel OVP ADJUST potentiometer fully clockwise.  
5. Momentarily apply 5-15 V across J210 pins 1-2 (P1 -ve, P2 +ve) or cycle the AC  
input power.  
6. The power supply output will recover, indicating that the OVP circuit was reset  
by momentarily activating the TTL S/D logic or cycling the AC power.  
38  
Operating Manual for XPD Series Power Supply  
 
     
Section 3. Local Operation  
Using the Shutdown Function  
Using the Shutdown Function  
Use the shutdown function to disable or enable the supply’s output via a logic level  
signal so that you can make adjustments to either the load or the power supply  
without shutting off the power supply. Activate this function via remote control  
through the rear panel J210 Programming and Monitoring connector, using a  
transistor-transistor logic (TTL) or CMOS compatible signal. The input lines of the  
shutdown circuit are optically isolated and will withstand a highpot test potential of  
500 Vac maximum to chassis.  
Controlling The shutdown circuit accepts a TTL or CMOS-compatible signal to disable or enable  
the power supply output. Make connections for signals at the rear panel J210  
connector. See “Rear Panel J210 Connector” on page 15, for more information about  
the J210 connector.  
Shutdown  
Function via  
J210  
Connector  
To activate the shutdown function:  
Connect the control signal source between J210 connector pin 2  
(shutdown/positive) and pin 1 (shutdown return/negative).  
Master-Slave Tracking  
Note It is important to note that a Master-Slave configuration only applies to 2 positive  
outputs, not split supply operation.  
For tracking positive and negative outputs, use the following setup:  
1. Connect master return (J210 connector pin 13) to slave RTN (J210 connector pin  
13).  
2. Connect master Vmon (J210 connector pin 15) to slave voltage program input  
(J210 connector pin 14).  
Note Master/slave power supplies must have the same output ratings.  
As the slave is referenced to the master’s output, the noise and ripple on the slave may  
increase. In addition, if the master’s output decreases due to the current limit acting,  
the output voltage of the slave will follow. However, overcurrent of the slave supply and  
consequent output voltage decrease will not reflect on the master.  
Release A  
39  
 
     
Section 3. Local Operation  
Using Multiple Supplies  
Using Multiple Supplies  
WARNING  
There is a shock hazard at the load when using a power supply with a rated or  
combined output greater than 40 V. To protect personnel against accidental  
contact with hazardous voltages created by series connection, ensure that the  
load, including connections, has no live parts which are accessible. Also ensure  
that the insulation rating of the load wiring and circuitry is greater than or equal to  
the maximum or combined output voltage of the power supply.  
CAUTION  
!
!
Do not connect power supplies from different manufacturers in parallel or in  
series.  
CAUTION  
The remote programming inputs are internally referenced to the supply’s  
negative output. Do not connect remote programming ground lines (J210  
terminal 8,13) to the supply’s positive output.  
You can operate power supplies of the SAME MODEL with outputs in series or in  
parallel to obtain increased load voltage or increased current. Split supply operation  
gives you two positive outputs, or a positive and a negative output.  
40  
Operating Manual for XPD Series Power Supply  
 
 
Section 3. Local Operation  
Using Multiple Supplies  
Configuring Multiple Supplies for Series Operation (Voltage Mode Only)  
Connect power supplies in series to obtain a single output supply with higher output  
voltage. Connect the negative (–) terminal of one supply to the positive (+) terminal  
of the next supply. The total voltage available is the sum of the maximum voltages  
of each supply (add voltmeter readings). The maximum current available to the load  
is equal to the current of the lowest rated supply in the series. See Figure 3.2 for a  
representation of series operation.  
Positive Sense  
Positive Output  
Terminal  
Negative Output  
Terminal  
Return Sense  
Positive Load  
Terminal  
Negative Load  
Terminal  
Positive Sense  
Positive Output  
Terminal  
Negative Output  
Terminal  
Return Sense  
Figure 3.2 Series Operation  
Note You do not need to use remote sensing for series operation. If you choose to use  
it, refer to “Remote Sensing” on page 33.  
Release A  
41  
 
 
Section 3. Local Operation  
Using Multiple Supplies  
Configuring Multiple Supplies for Parallel Operation  
CAUTION  
!
For parallel operation , set all OVP trip points higher than the maximum output  
voltage.  
Connect power supplies in parallel to obtain a single output supply with a higher  
output current limit. Set all of the outputs to the same voltage before connecting the  
positive (+) and negative () terminals in parallel. The total current available is the  
sum of the maximum currents of each supply.  
The maximum voltage available at the load is equal to the voltage of the lowest rated  
supply. When you connect two supplies in parallel, the supply with the higher  
voltage setting will be in the current limiting mode, while the other supply controls  
the output voltage.  
Positive Sense  
Positive Output  
Terminal  
Negative Output  
Terminal  
Return Sense  
Positive Load  
Terminal  
Negative Load  
Terminal  
Positive Sense  
Positive Output  
Terminal  
Negative Output  
Terminal  
Return Sense  
Figure 3.3 Parallel Operation  
42  
Operating Manual for XPD Series Power Supply  
 
Section 3. Local Operation  
Using Multiple Supplies  
Configuring Multiple Supplies for Split Supply Operation  
Split supply operating uses two power supplies to obtain two positive voltages with  
a common ground, or to obtain a positive-negative supply.  
Two Positive Voltages To obtain two positive voltages, connect the negative  
output terminals of both supplies together in a common connection. The positive  
output terminals will provide the required voltages with respect to the common  
connection.  
Load Lines  
Use the largest gauge and  
shortest length possible  
Postive Sense  
Positive Output  
Terminal  
Negative Output  
Terminal  
Return Sense  
Positive Load  
Terminal #1  
Power Supply 1  
Postive Load  
Terminal #2  
Negative Load  
Terminal  
Postive Sense  
Positive Output  
Terminal  
Load  
Negative Output  
Terminal  
Return Sense  
Power Supply 2  
Figure 3.4 Split Supply Operation of Multiple Supplies (Two positive voltages)  
Release A  
43  
 
Section 3. Local Operation  
Using Multiple Supplies  
Positive-negative supply To obtain a positive-negative supply, connect the  
negative output terminal of one supply to the positive terminal of the second supply.  
The positive output terminal of the first supply now provides a positive voltage  
relative to the common connection. The negative output terminal of the second  
supply provides the negative voltage. The current limits can be set independently of  
each other. The maximum current available in split operation is equal to the rated  
output of the supplies.  
Load Lines  
Use the largest gauge and  
shortest length possible  
Postive Sense  
Positive Output  
Terminal  
Negative Output  
Terminal  
Return Sense  
Positive Load  
Terminal  
Power Supply 1  
Common Load  
Terminal  
Negative Load  
Terminal  
Postive Sense  
Positive Output  
Terminal  
Load  
Negative Output  
Terminal  
Return Sense  
Power Supply 2  
Figure 3.5 Split Supply Operation of Multiple Supplies (Positive-negative Supply)  
Note Split supply operation requires the use of an isolated analog interface card on the  
slave unit. In this arrangement, one-knob control of both supplies is possible  
44  
Operating Manual for XPD Series Power Supply  
 
Section 3. Local Operation  
User Diagnostics  
User Diagnostics  
If your power supply is not performing as described in this manual, run through the  
procedures and checks in this section before calling your service technician. These  
procedures are confined to operator level functions only. They do not require  
cover-off servicing.  
Emergency In an emergency, carry out both of these steps:  
Shutdown  
1. Shut the power supply OFF immediately.  
2. Disconnect the mains supply, if possible.  
3. Disconnect the power supply from the load.  
Unusual or If the power supply displays any unusual or erratic operation, follow these steps:  
Erratic  
Operation  
1. Shut the power supply OFF immediately.  
2. Disconnect the power supply from the load and external programming.  
3. Test the power supply with no load, running the tests in “Functional Tests” on  
page 29.  
4. If the tests show that the power supply is functioning normally, check all load,  
programming, and monitoring connections and circuits.  
If the problem is not solved after you have followed this procedure, or if the unit fails  
to operate correctly upon retesting, call your service technician.  
Turn to “Trouble Shooting for Operators” below for more information about  
troubleshooting for operators.  
Trouble Use the checks in Table 3.2 to ensure that the power supply is configured and  
connected for normal operation. If you need any further troubleshooting, call your  
service technician.  
Shooting for  
Operators  
Abbreviated References Used in Table  
OVP  
S/D  
over voltage protection  
shutdown  
Release A  
45  
 
       
Section 3. Local Operation  
User Diagnostics  
Table 3.2 User Diagnostics  
Symptom  
Check  
Further Checks and Corrections  
No output and the  
display is blank.  
In input voltage within  
specified range?  
Connect to appropriate voltage  
source. See “AC Input Power  
Power switch ON?  
Internal circuit?  
Turn on power.  
No output but the  
display turns on.  
OVP LED turned on?  
Protection (OVP)” on page 38.  
Front panel S/D LED  
turned on?  
See “Using the Shutdown  
Function” on page 39.  
Current limit set to zero? See “Standard Operation” on page  
35.  
Voltage control set to  
zero?  
REM LED turned on?  
If using remote analog control,  
check your analog programming  
source (See “Remote Operation”  
on page 49).  
Internal circuit.  
Output voltage not Is unit in current limit  
Turn current knob clockwise to  
increase current limit. Reduce load  
adjustable.  
mode? (Red Current  
Limit mode LED turned  
on.)  
“Standard Operation” on page 35.  
Is unit in remote  
programming mode?  
(Green PGM LED is  
turned on.)  
If using remote analog control,  
check your analog programming  
source (See “Remote Operation”  
on page 49). If not, refer to your  
digital interface manual.  
Is unit at maximum  
voltage or current limit?  
Reduce load for lower voltage or  
current requirement.  
46  
Operating Manual for XPD Series Power Supply  
 
Section 3. Local Operation  
User Diagnostics  
Symptom  
Check  
Further Checks and Corrections  
Output voltage  
fluctuating or  
regulation poor.  
Is unit at current limit?  
Is input voltage within  
specified range?  
Connection” on page 28.  
Are sense lines  
connected?  
See “Load Connection” on page  
30, and “Remote Sensing” on  
page 33.  
is unit under remote  
analog control?  
Ensure that program source is  
stable.  
Internal circuit.  
Internal circuit.  
See your service technician.  
See your service technician.  
Output oscillating.  
Release A  
47  
 
Section 3. Local Operation  
User Diagnostics  
48  
Operating Manual for XPD Series Power Supply  
 
Section 4. Remote Operation  
Introduction  
The switches and connector on the rear panel of the power supply allow you to  
program the supply with an analog device or to readback analog signals.  
Remote You can operate the power supply from a computer if you have the optional GPIB or  
RS-232 interface card installed. Refer to the separate interface manual for all setup  
and operation instructions for remote digital programming.  
Digital  
Programming  
Remote Analog Programming of Output Voltage and Current Limit  
Remote analog programming allows control of the power supply’s output voltage  
and output current limit to shift from local operation at the front panel voltage and  
current controls to external analog input sources. As you vary the programming  
source, the power supply’s output varies proportionally over its output range.  
Using remote analog programming requires that you make connections to the J210  
connector on the power supply’s rear panel. See “Rear Panel J210 Connector” on  
page 15. To reduce radiated emissions, add a ferrite block to the wires that go to the  
J210 connector. The 1 inch square ferrite block with built in housing clip is packaged  
and shipped with the power supply.  
J210 connector  
J210 cable  
Ferrite Block  
To user interface  
Max. 5 cm  
Figure 4.1 J210 User Cable with Ferrite Block  
Release A  
49  
 
         
Section 4. Remote Operation  
Readback and Status Indicators  
Remote See Table 4.1 for a summary of the options available to you for programming output  
voltage and current limit using an analog source.  
Programming  
Options  
Table 4.1 Remote Programming Options  
Control of...  
Output voltage  
Current limit  
Programming Scale  
0-10 V voltage sources  
0-10 V voltage sources  
Programming 1. Connect J210 pin 6 (remote voltage program select) to J210 pin 8 (auxiliary  
Output  
Voltage with a  
0-10 Vdc  
ground).  
2. Connect the control voltage source between pin 14 (voltage program) and pin 13  
(program return).  
Voltage  
Source  
3. Vary the external voltage from 0-10 Vdc to cause the power supply output to  
vary from 0-100% of rated output voltage.  
Programming 1. Connect J210 pin 7 (remote current program select) to J210 pin 8 (auxiliary  
Output  
Current with  
a 0-10 Vdc  
Voltage  
ground).  
2. Connect the control voltage source between J210 pin 5 (current program,  
positive) and pin 8 (program return).  
3. Vary the external voltage from 0-10 Vdc to cause the power supply current limit  
to vary from 0-100% of rated output.  
Source  
Readback and Status Indicators  
Voltage and Voltage Readback Connect a voltage monitoring device between J210  
connector pin 15 (voltage readback - positive) and pin 13 (program return -  
negative).  
Current  
Readback  
Range: 0-10 V = 0-100% full rated voltage output of power supply  
Current Readback Connect a voltage monitoring device between J210  
connector pin 12 (current readback - positive) and pin 13 (program return -  
negative).  
Range: 0-10 V = 0-100% full rated current output of power supply  
50  
Operating Manual for XPD Series Power Supply  
 
         
Section 4. Remote Operation  
Status Flags  
Status Flags  
The power supply has 5 status flags to indicate the operating state. The S/D LED on  
the front panel, and 4 LEDs visible from the top of the unit. The flags, listed in order  
from front to rear, are OTP, OVP, SNS-PROT and AC-FAIL.  
OTP  
Over-temperature protection indicates a supply shutdown due to  
over-temperature triggering the OTP circuitry. The unit has an  
auto-restart feature when the supply’s temperature is within the correct  
temperature range again.  
OVP  
Over-voltage protection indicates shutdown due to output voltage  
exceeding the threshold preset using the OVP trimpot on the front  
panel.  
SNS-PROT Sense line protection indicates a shutdown due to a voltage drop on the  
load lines exceeding 5 V per line (3 V per line for 7.5 V model) in remote  
sense mode. This condition may also occur if the unit is operated  
without the J207 default sense line connector.  
AC-FAIL  
AC fail indicates a mains V ac input out of the supply’s specified range  
(i.e. below 85 V ac or over 264 V ac).  
In the event of one of the flags being tripped, the flag is raised along with S/D flag  
on the front panel. An S/D flag with none of the other 4 flags indicates remote  
shutdown (J210,1and 2).  
Release A  
51  
 
 
Section 4. Remote Operation  
Status Flags  
52  
Operating Manual for XPD Series Power Supply  
 
 
Xantrex Technology Inc.  
8999 Nelson Way  
Burnaby, British Columbia  
Canada V5A 4B5  
604 422 8595 Tel  
604 421 3056 Fax  
800 667 8422 Toll Free North America  
PRINTED IN CANADA  
TM-PDOP-01XN  
 

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