Xantrex XPF 35-10 User manual

XPF Series
Dual Output
35V 10A Powerflex
DC Power Supply
XPF 35-10
Operating Manual

About Xantrex
Xantrex Technology Inc. is a world-leading supplier of advanced power electronics and controls
with products from 50 watt mobile units to one MW utility-scale systems for wind, solar, batteries,
fuel cells, microturbines, and backup power applications in both grid-connected and stand-alone
systems. Xantrex products include inverters, battery chargers, programmable power supplies,
and variable speed drives that convert, supply, control, clean, and distribute electrical power.
Trademarks
XPF series is a trademark of Xantrex International. Xantrex is a registered trademark of Xantrex
International.
Other trademarks, registered trademarks, and product names are the property of their respective
owners and are used herein for identification purposes only.
Notice of Copyright
© Xantrex International. All rights reserved.
Disclaimer
UNLESS SPECIFICALLY AGREED TO IN WRITING, XANTREX TECHNOLOGY INC.
(“XANTREX”)
(a) MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY OF
ANY TECHNICAL OR OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER
DOCUMENTATION.
(b) ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSS OR DAMAGE, WHETHER
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.
Date and Revision
July 2004 - Revision 2
Part Number
975-0106-01-02
Contact Information
Telephone: [phone] (toll free in North America)
1-360-925-5097 (direct)
Fax: [phone]
Email: [email protected]
Web: www.xantrex.com
1

Table of Contents
Specification 3
Safety 5
EMC 6
Installation 7
Connections 8
Operation 9
Maintenance 11
Calibration 12
Instructions en Francais
Sécurité
Installation 13
Connexions 14
Opération 14
Maintenance 16
Bedienungsanleitung auf Deutsch
Sicherheit 17
Installation 18
Anschlüsse 19
Betrieb 19
Wartung 22
Istruzioni in Italiano
Sicurezza 23
Installazione 24
Collegamento 25
Funzionamento 25
Manutenzione 28
Instrucciones en Español
Seguridad 29
Instalación 30
Conexiones 31
Funcionamiento 31
Mantenimiento 33
Warranty Information 34
2

Specification
OUTPUT SPECIFICATIONS
Voltage Range: 0V to 35V
Current Range: 0A to 10A
Power Range: Up to 175W
Output Voltage Setting: By coarse and fine controls.
Output Current Setting: By single logarithmic control.
Operating Mode: Constant voltage or constant current with automatic cross-over
provided that the power demanded stays within the power
envelope, see graph. Outside of this envelope the output becomes
unregulated.
Output Switch: Electronic. Preset voltage and current displayed when off.
Output Terminals: 4mm terminals on 19mm (0·75”) pitch. 15A max.
Sensing: Switchable between local and remote. Spring-loaded push
terminals for remote connection.
Output Impedance: Typically <5mΩin constant voltage mode.
Typically >5kΩin constant current mode (voltage limit at max).
Output Protection: Forward protection by Over-Voltage Protection (OVP) trip;
maximum voltage that should be applied to the terminals is 50V.
Reverse protection by diode clamp for reverse currents up to 3A.
OVP Range: 10% to 110% of maximum output voltage set by front panel
screwdriver adjustment.
Line & Load Regulation: <0.01% of maximum output for a 10% line change; <0.05% of
maximum output for a 90% load change.
Ripple & Noise
(20MHz bandwidth):
5mVrms max; typically <2mVrms, <20mV pk-pk, both outputs fully
loaded (7A @ 25V), CV mode.
Transient Load Response: <2ms to within 100mV of set level for 90% load change.
Temperature Coefficient: Typically <100ppm/°C
Status Indication: Output on lamp.
Constant voltage mode lamp.
Constant current mode lamp.
Unregulated (power limit) lamp
Trip message on display.
3

METER SPECIFICATIONS
Meter Types: Dual 4 digit meters with 12.5mm (0.5") LEDs. Reading rate 4 Hz.
Meter Resolutions: 10mV, 10mA
Meter Accuracies: Voltage 0.2% of reading +/-1 digit,
Current 0.5% of reading +/-1 digit
GENERAL
AC Input: 110V-120V AC or 220V-230V AC ± 10%, 50/60Hz.
Installation Category II.
Power Consumption: 600VA max.
Operating Range: +5ºC to +40ºC, 20% TO 80% RH.
Storage Range: −40ºC to + 70ºC.
Environmental: Indoor use at altitudes up to 2000m, Pollution Degree 2.
Safety: Complies with EN61010-1.
EMC: Complies with EN61326.
Size: 210 x 130 x 375mm (WxHxD) half rack width x 3U height.
Weight: 5kg
4

Safety
This power supply is a Safety Class I instrument according to IEC classification and has been
designed to meet the requirements of EN61010-1 (Safety Requirements for Electrical Equipment
for Measurement, Control and Laboratory Use). It is an Installation Category II instrument
intended for operation from a normal single phase supply.
This instrument has been tested in accordance with EN61010-1 and has been supplied in a safe
condition. This instruction manual contains some information and warnings which have to be
followed by the user to ensure safe operation and to retain the instrument in a safe condition.
This instrument has been designed for indoor use in a Pollution Degree 2 environment in the
temperature range 5°C to 40°C, 20% - 80% RH (non-condensing). It may occasionally be
subjected to temperatures between +5°C and –10°C without degradation of its safety. Do not
operate while condensation is present.
Use of this instrument in a manner not specified by these instructions may impair the safety
protection provided. Do not operate the instrument outside its rated supply voltages or
environmental range.
WARNING! THIS INSTRUMENT MUST BE EARTHED
Any interruption of the mains earth conductor inside or outside the instrument will make the
instrument dangerous. Intentional interruption is prohibited. The protective action must not be
negated by the use of an extension cord without a protective conductor.
When the instrument is connected to its supply, terminals may be live and opening the covers or
removal of parts (except those to which access can be gained by hand) is likely to expose live
parts. The apparatus shall be disconnected from all voltage sources before it is opened for any
adjustment, replacement, maintenance or repair. Capacitors inside the power supply may still be
charged even if the power supply has been disconnected from all voltage sources but will be
safely discharged about 10 minutes after switching off power.
Any adjustment, maintenance and repair of the opened instrument under voltage shall be avoided
as far as possible and, if inevitable, shall be carried out only by a skilled person who is aware of
the hazard involved.
If the instrument is clearly defective, has been subject to mechanical damage, excessive moisture
or chemical corrosion the safety protection may be impaired and the apparatus should be
withdrawn from use and returned for checking and repair.
Make sure that only fuses with the required rated current and of the specified type are used for
replacement. The use of makeshift fuses and the short-circuiting of fuse holders is prohibited.
Do not wet the instrument when cleaning it.
The following symbols are used on the instrument and in this manual:-
Earth (ground) terminal.
mains supply OFF.
l mains supply ON.
alternating current (ac)
5

EMC
This instrument has been designed to meet the requirements of the EMC Directive 89/336/EEC.
Compliance was demonstrated by meeting the test limits of the following standards:
Emissions
EN61326 (1998) EMC product standard for Electrical Equipment for Measurement, Control and
Laboratory Use. Test limits used were:
a) Radiated: Class B
b) Conducted: Class B
c) Harmonics: EN61000-3-2 (2000) Class A; the instrument is Class A by product category.
Immunity
EN61326 (1998) EMC product standard for Electrical Equipment for Measurement, Control and
Laboratory Use.
Test methods, limits and performance achieved were:
a) EN61000-4-2 (1995) Electrostatic Discharge : 4kV air, 4kV contact, Performance A.
b) EN61000-4-3 (1997) Electromagnetic Field, 3V/m, 80% AM at 1kHz, Performance A.
c) EN61000-4-11 (1994) Voltage Interrupt, 1 cycle, 100%, Performance B.
d) EN61000-4-4 (1995) Fast Transient, 1kV peak (AC line), 0.5kV peak (DC Outputs),
Performance A.
e) EN61000-4-5 (1995) Surge, 0.5kV (line to line), 1kV (line to ground), Performance A.
f) EN61000-4-6 (1996) Conducted RF, 3V, 80% AM at 1kHz (AC line only; DC Output
connections <3m not tested), Performance A.
According to EN61326 the definitions of performance criteria are:
Performance criterion A: ‘During test normal performance within the specification limits.’
Performance criterion B: ‘During test, temporary degradation, or loss of function or
performance which is self-recovering’.
Performance criterion C: ‘During test, temporary degradation, or loss of function or
performance which requires operator intervention or system reset occurs.’
Where Performance B is stated it is because DC Output regulation may deviate beyond
Specification limits under the test conditions. However, the possible deviations are still small and
unlikely to be a problem in practice.
Note that if operation in a high RF field is unavoidable it is good practice to connect the PSU to
the target system using screened leads which have been passed (together) through an absorbing
ferrite sleeve fitted close to the PSU terminals.
Cautions
To ensure continued compliance with the EMC directive observe the following precautions:
a) after opening the case for any reason ensure that all signal and ground connections are
remade correctly and that case screws are correctly refitted and tightened.
b) In the event of part replacement becoming necessary, only use components of an identical
type, see the Service Manual.
6

Installation
Mains Operating Voltage
Check that the instrument operating voltage marked on the rear panel is suitable for the local
supply. Should it be necessary to change the operating voltage, proceed as follows:
1. Ensure that the instrument is disconnected from the AC supply.
2. Remove the 6 screws holding the case upper and lift off the cover.
3. Change the plug-in connections between the transformer and main board following the
diagram below:
BROWN RED
(VIEWFROMABOVE) (VIEWFROMABOVE)
230V
O
PERATI
O
N 115V
O
PERATI
O
N
BLUE BLU
E
RED BROWN
L
N
PP
(
PARK
)
(
PARK
)
L
N
4. Re-assemble in the reverse order.
5. To comply with safety standard requirements the operating voltage on the rear panel must
be changed to clearly show the new voltage setting.
Mains Lead
When a three core mains lead with bare ends is provided this should be connected as follows:
BROWN - MAINS LIVE
BLUE - MAINS NEUTRAL
GREEN/YELLOW - EARTH Safety Earth Symbol
When fitting a fused plug a 5 amp fuse should be fitted inside the plug. As the colours of the
wires in the mains lead of this apparatus may not correspond with the coloured markings
identifying the terminals in your plug proceed as follows:
The wire which is coloured green-and-yellow must be connected to the terminal in the plug which
is marked by the letter E or by the safety earth symbol shown above or coloured green or green-
and-yellow.
The wire which is coloured blue must be connected to the terminal which is marked with the letter
N or coloured black.
The wire which is coloured brown must be connected to the terminal which is marked with the
letter L or coloured red.
WARNING! THIS INSTRUMENT MUST BE EARTHED.
Any interruption of the mains earth conductor inside or outside the instrument will make the
instrument dangerous. Intentional interruption is prohibited.
Mounting
This instrument is suitable both for bench use and rack mounting. It is delivered with feet for
bench mounting. The front feet include a tilt mechanism for optimal panel angle.
7

Connections
All connections are made from the front panel.
The load should be connected to the positive (red) and negative (black) terminals marked
OUTPUT. The OUTPUT terminals are rated at 15A.
Remote sense connections to the load, if required, are made from the positive (+) and
negative (−) SENSE terminals. Switch the LOCAL/REMOTE switch to REMOTE when remote
sensing is required. Switch back to LOCAL when remote sensing is not in use.
The terminal marked is connected to the chassis and safety earth ground.
8

Operation
The operation of both outputs is identical; the following description applies to both.
Setting Up the Output
With the POWER switch on (l) and the OUTPUT switch off the output voltage and current limit
can be accurately preset using the VOLTAGE and CURRENT controls; the upper meter shows
the set voltage and the lower meter shows the set maximum current.
When the OUTPUT switch is switched on, the OUTPUT ON lamp and the CV (constant voltage)
lamp light; the upper meter continues to show the set voltage but the lower meter now shows the
actual load current.
Constant Voltage
The output voltage is adjusted using the coarse and fine VOLTAGE control; the CURRENT
control sets the maximum current that can be supplied.
The CV lamp lights to show constant voltage mode.
Constant Current
If the load resistance is low enough such that, at the output voltage set, a current greater than the
current limit setting would flow, the power supply will automatically move into constant current
operation. The current output is adjusted by the CURRENT control and the VOLTAGE controls
set the maximum voltage that can be generated.
The CI lamp lights to show constant current mode.
Instantaneous Current Output
The current limit control can be set to limit the continuous output current to levels down to 10mA.
However, in common with all precision bench power supplies, a capacitor is connected across the
output to maintain stability and good transient response. This capacitor charges to the output
voltage and short-circuiting of the output will produce a current pulse as the capacitor discharges
which is independent of the current limit setting.
Power Limit
The maximum output at different voltage settings is limited by the power envelope illustrated
below:
The power envelope is set to give 35V/5A and 12V/10A under all supply conditions (both outputs
loaded); at lower output voltages the output power is restricted by the 10A current maximum.
When the power limit is exceeded, the status indication will change from CV or CI to UNREG. For
example, if the supply is set to 14V, with the current limit at maximum, and is connected to a
3.5Ohm load, 4Amps will flow and the supply will be in CV mode. As the voltage across the load
is increased, the power into the load increases until, at about 25V, the power limit is exceeded
and the supply changes from CV to UNREG.
9