GW Instek PSP-603 User manual

Programmable Power Supply
PSP-603, PSP-405, PSP-2010
USER MANUAL
ISO-9001 CERTIFIED MANUFACTURER

Table of Contents
1
Table of Contents
SAFETY INSTRUCTIONS .................................................. 2
GETTING STARTED.......................................................... 7
Main Features ........................................ 8
Accessories............................................ 8
PSP Series Lineup ..................................9
Front Panel Overview ........................... 10
Display Overview ................................. 12
Rear Panel Overview ............................ 14
Set Up.................................................. 15
OPERATION .................................................................. 17
REMOTE CONTROL ....................................................... 26
Interface Configuration ........................ 28
Command Set ...................................... 35
Setting for different command format.. 52
FAQ............................................................................... 56
APPENDIX ..................................................................... 57
Fuse Replacement ................................ 57
Fan....................................................... 58
Specification ........................................ 59
Declaration of Conformity .................... 61
INDEX ........................................................................... 62

PSP Series User Manual
2
SAFETY INSTRUCTIONS
This chapter contains important safety
instructions that you must follow when operating
a PSP series power supply and when keeping it in
storage. Read the following before any operation
to insure your safety and to keep the instrument
in the best possible condition.
Safety Symbols
These safety symbols may appear in this manual or on the power
supply.
WARNING
Warning: Identifies conditions or practices that
could result in injury or loss of life.
CAUTION
Caution: Identifies conditions or practices that
could result in damage to the power supply or to
other property.
DANGER High Voltage
Attention Refer to the Manual
Protective Conductor Terminal
Earth (ground) Terminal

SAFETY INSTRUCTIONS
3
Safety Guidelines
General
Guideline
CAUTION
Do not place any heavy object on the power
supply.
Avoid severe impact or rough handling that
could lead to damaging the power supply.
Do not discharge static electricity to the power
supply.
Do not block or obstruct the cooling fan vent
openings.
Do not disassemble the power supply unless
you are qualified as service personnel.
(Measurement categories) EN 61010-1:2001 specifies the
measurement categories and their requirements as follows. The
PSP series power supplies fall under category II.
Measurement category IV is for measurement performed at the
source of low-voltage installation.
Measurement category III is for measurement performed in the
building installation.
Measurement category II is for measurement performed on the
circuits directly connected to the low voltage installation.
Measurement category I is for measurements performed on
circuits not directly connected to Mains.
Power Supply
WARNING
AC Input voltage: 115/230 VAC±15%.
Connect the protective grounding conductor of
the AC power cord to an earth ground, to avoid
electrical shock.
Fuse
WARNING
Fuse type: Slow blow T3.15A/250V (230V
input), T6.3A/250 (115V input).
Make sure the correct type of fuse is installed
before power up.

PSP Series User Manual
4
For fire prevention, replace the fuse only with
the specified type and rating.
Disconnect the power cord before fuse
replacement.
Make sure the cause of the fuse blowout is fixed
before replacing the fuse.
Cleaning
Disconnect the power cord before cleaning.
Use a soft cloth dampened in a solution of mild
detergent and water. Do not spray any liquid.
Do not use chemicals or cleaners containing
harsh materials such as benzene, toluene,
xylene, and acetone.
Operation
Environment
Location: Indoor, no direct sunlight, dust free,
almost non-conductive pollution (Note below)
Relative Humidity: < 80%
Altitude: < 2000m
Temperature: 0°C to 40°C
(Pollution Degree) EN 61010-1:2001 specifies the pollution degrees
and their requirements as follows. The PSP power supply falls
under degree 2.
Pollution refers to “addition of foreign matter, solid, liquid, or
gaseous (ionized gases), that may produce a reduction of dielectric
strength or surface resistivity”.
Pollution degree 1: No pollution or only dry, non-conductive
pollution occurs. The pollution has no influence.
Pollution degree 2: Normally only non-conductive pollution
occurs. Occasionally, however, a temporary conductivity caused
by condensation must be expected.
Pollution degree 3: Conductive pollution occurs, or dry, non-
conductive pollution occurs which becomes conductive due to
condensation which is expected. In such conditions, equipment
is normally protected against exposure to direct sunlight,
precipitation, and full wind pressure, but neither temperature
nor humidity is controlled.

SAFETY INSTRUCTIONS
5
Storage
environment
Location: Indoor
Relative Humidity: < 80%
Temperature: −10°C to 70°C
General
Precautions
CAUTION
All electronically conducting materials (cables,
leads, terminals) must be sufficiently insulated.
Connected loads should not be left
unsupervised.
Ensure adequate ventilation for operation.
High voltages or current can be hazardous,
ensure proper safety precautions are used.
Do not use the power supply in situations
where condensation may have occurred, such as
where severe temperature/humidity
fluctuations have occurred.

PSP Series User Manual
6
Power cord for the United Kingdom
When using the power supply in the United Kingdom, make sure
the power cord meets the following safety instructions.
NOTE: This lead/appliance must only be wired by competent persons
WARNING: THIS APPLIANCE MUST BE EARTHED
IMPORTANT: The wires in this lead are coloured in accordance with
the following code:
Green/ Yellow:
Earth
Blue:
Neutral
Brown:
Live (Phase)
As the colours of the wires in main leads may not correspond with the
coloured marking identified in your plug/appliance, proceed as
follows:
The wire which is coloured Green & Yellow must be connected to the
Earth terminal marked with either the letter E, the earth symbol or
coloured Green/Green & Yellow.
The wire which is coloured Blue must be connected to the terminal
which is marked with the letter N or coloured Blue or Black.
The wire which is coloured Brown must be connected to the terminal
marked with the letter L or P or coloured Brown or Red.
If in doubt, consult the instructions provided with the equipment or
contact the supplier.
This cable/appliance should be protected by a suitably rated and
approved HBC mains fuse: refer to the rating information on the
equipment and/or user instructions for details. As a guide, a cable of
0.75mm2 should be protected by a 3A or 5A fuse. Larger conductors
would normally require 13A types, depending on the connection
method used.
Any exposed wiring from a cable, plug or connection that is engaged in
a live socket is extremely hazardous. If a cable or plug is deemed
hazardous, turn off the mains power and remove the cable, any fuses
and fuse assemblies. All hazardous wiring must be immediately
destroyed and replaced in accordance to the above standard.

GETTING STARTED
7
GETTING STARTED
This chapter describes the main features, front /
rear panel appearance, and how to set the power
supply connection.
Main Features ................................................... 8
Accessories ....................................................... 8
PSP Series Lineup ............................................. 9
Front Panel Overview ...................................... 10
Display Overview ............................................ 12
Rear Panel Overview ....................................... 14
Set Up............................................................. 15
Power up ..................................................................15
Single Power Supply Connection ............................15

PSP Series User Manual
8
Main Features
Performance
200 watt output
0~60V/0~3.5A (PSP-606)
0~40V/0~5A (PSP-405)
0~20V/0~10A (PSP-2010)
High resolution and accuracy
Operation
Current, power and voltage limits.
Current limiter for short circuit and overload
protection
Key lock
Percentage offset output
LCD display
Digital scroll wheel
Course and fine control
Temperature and load controlled fan
Optional European terminals
Interface
Custom RS-232C (Please use GTL-232A cable
only)
Accessories
Power cord x1
Instruction manual x1
Test Lead x1

GETTING STARTED
9
PSP Series Lineup
The PSP Series are single output programmable switching DC
power supplies. There are 3 models in the PSP series lineup. For
detailed information, please see the specification table on page 58.
Model
Power
Voltage
Current
PSP-603
200W
0~60V
0~3.5A
PSP-405
200W
0~40V
0~5A
PSP-2010
200W
0~20V
0~10A

PSP Series User Manual
10
Front Panel Overview
LCD Display CF Key V set Key REM Key N Key F Key Scroll Wheel
+ % Key NORMAL Key - % Key
V Limit Key Enter Key P Limit Key Output Key I Limit Key
- Output Terminal Ground Terminal
Power Switch + Output Terminal
LCD Display
Monochrome LCD display.
CE key
CE
Clears the last value entered.
V SET key
V SET
Sets the output voltage level.
+% key
+%
Sets the positive percentage offset value
or increases the voltage output by the
positive percentage offset.
REM key
REM
Disables remote control. Activates all
keys that were disabled during remote
control.
NORMAL key
NORMAL
Returns the output voltage to the normal
preset level after +% or -% key has been
pressed.

GETTING STARTED
11
N key
N
Sets the scroll wheel to Normal (coarse)
mode.
-% key
-%
Sets the negative percentage offset value
or decreases the voltage output by the
negative percentage offset.
LOCK
LOCK
Locks the scroll wheel and panel keys.
F key
F
Sets the scroll to Fine mode.
Scroll Wheel
Adjustments measurement
parameters and settings.
POWER Switch
Power:
ON:
OFF:
V LIMIT
V LIMIT
Sets the voltage limit.
ENTER
ENTER
Confirms settings.
- Output Terminal
Negative terminal output.
P LIMIT
P LIMIT
Sets the power limit.
Ground Terminal
Ground terminal.
OUTPUT key
OUTPUT
Turns the output ON/OFF.
+ Output
Terminal
Positive terminal output.
I LIMIT
I LIMIT
Sets the current limit.

PSP Series User Manual
12
Display Overview
l ocked
LI MI TS
Out put
On Of f
V- c on s t
I - c on st
P- c o ns t
f i n e
r e mot e
Ov er t e mp
Power
Remote
Indicator
Panel lock
indicator
Current limit
indicator
Power limit
indicator
Output On/Off
indicator
Overtemperature
indicator
Power limit
Voltage
Current
Adjustment
indicator
Fine adjustment
indicator
Voltage limit
indicator
Limit indicator
Voltage
limit
Current
limit
Voltage
Displays the voltage output.
Current
Displays the current output.
Adjustment
Indicator
Displays the whether a parameter is adjusted
higher of lower.
Fine Adjustment
Indicator
Indicates when the scroll wheel is in fine mode.
Voltage
limit/indicator
Used when adjusting the voltage limit.
Current
limit/Indicator
Used when adjusting the current limit.
Power limit
Indicator
Used when adjusting the power limit.

GETTING STARTED
13
Over temperature
indicator
When the temperature exceeds the internal
temperature limit, the Over temperature indicator
is displayed.
Panel Lock
Front panel key lock.
Remote
Remote is displayed when in remote control mode.
Power
Displays the power output.

PSP Series User Manual
14
Rear Panel Overview
Cooling fan
Voltage selector switch
Power Socket
Fuse RS232
Power
Socket/Fuse
The power socket accepts AC
mains voltage, 115V or 230V.
Fuse:
T3.15A/250V (230V input),
T6.3A/250V (115V input)
Voltage Selector
Sets the mains input voltage. Left,
230V, right, 115V.
Cooling fan
Temperature or current load controlled fan. See
page 58.
RS-232
Custom RS-232C connector for
remote control. (Please use GTL-
232A cable only)

GETTING STARTED
15
Set Up
Power up
Panel operation
1. Set the rear panel
Voltage selector to the
correct position
according to the AC
mains voltage.
115V
230V
2. Connect the power
cord to the socket.
3. Turn On the power
switch. The display
becomes active in 2~3
seconds.
Single Power Supply Connection
Panel operation
When connecting the power supply to a load,
please ensure the safety guidelines below are
adhered to.
PSP Load
+OUT
-OUT
+IN
-IN

PSP Series User Manual
16
Warning
Ensure the output is off when connecting any cables
to the power supply.
Inspect all cables or wires for damage before use. Any
exposed wiring from cables can be extremely
hazardous. If a cable is deemed hazardous, replace
before use.
1. Ensure the power supply’s output is turned off
before proceeding with any connections.
2. Connect the positive terminal of the power
supply to the positive terminal of the load.
3. Connect the negative terminal of the power
supply to the load.

OPERATION
17
OPERATION
The operation chapter describes how to set the
limits, output voltage and how to adjust
configuration settings.
Voltage Limit Settings ................................................ 18
Current Limit Settings ................................................ 19
Power Limit Settings................................................... 20
Voltage Output Setting............................................... 21
Output......................................................................... 22
Percentage Offset Output .......................................... 22
Percentage Offset Settings......................................... 23
Scroll Wheel Step Resolution ..................................... 24
Key Panel Lock ............................................................ 24
Remote Panel Lock ..................................................... 25

PSP Series User Manual
18
Voltage Limit Settings
The voltage limit settings determine the maximum
voltage output for the power supply.
Panel operation
1. Press the V LIMIT key. The U-const
icon will flash.
V LIMIT
2. Use the scroll wheel to adjust the
voltage limit in the U-const field.
3. Press ENTER to confirm the limit
setting.
ENTER
L I MI T S
Out pu t
Off
U- c ons t
I - c on st
P- c ons t
Range
0~Rating
Step resolution
1 volt
Max Limit
4. Hold the V LIMIT key for 2 seconds to
set to the rating voltage and to exit.
V LIMIT
Clear
5. The CE key can be pressed to clear the
voltage limit to the previous value
when editing. This will also cancel
editing the voltage limit and exit.
CE
Note
Editing the voltage limit will automatically
adjust the power limit.