Multi-Range DC Power Supply
PSB-1000 Series
USER MANUAL
GW INSTEK PART NO. 82SB-1800UM01
ISO-9001 CERTIFIED MANUFACTURER
This manual contains proprietary information, which is protected by
copyright. All rights are reserved. No part of this manual may be
photocopied, reproduced or translated to another language without
prior written consent of Good Will company.
The information in this manual was correct at the time of printing.
However, Good Will continues to improve products and reserves the
rights to change specification, equipment, and maintenance
procedures at any time without notice.
Good Will Instrument Co., Ltd.
No. 7-1, Jhongsing Rd., Tucheng Dist., New Taipei City 236, Taiwan.
SAFETY INSTRUCTIONS
Table of Contents
SAFETY INSTRUCTIONS ................................................... 5
GETTING STARTED ........................................................... 9
PSB-1000 Series Overview .................... 11
Appearance .......................................... 15
Theory of Operation ............................. 29
OPERATION .................................................................... 41
Set Up .................................................. 43
Basic Operation ................................... 65
Advanced Settings ............................... 77
Power On Configuration ...................... 86
Parallel/Series Operation ..................... 98
File Operations .................................. 118
Sequence Function ............................. 127
Trigger Input & Output ...................... 138
EXTERNAL CONTROL .................................................... 143
Analog Control ................................... 144
Remote Monitoring ............................ 161
COMMUNICATION INTERFACE ..................................... 166
Interface Configuration ...................... 167
FAQ ............................................................................... 187
APPENDIX ..................................................................... 188
PSB-1000 Default Settings ................. 188
PSB-1000 Specifications ..................... 190
PSB-1000 Dimensions ........................ 200
Declaration of Conformity .................. 201
3
PSB-1000 Series User Manual
INDEX ............................................................................ 202
4
SAFETY INSTRUCTIONS
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 PSB-1000 or to other
properties.
DANGER High Voltage
Attention Refer to the Manual
Protective Conductor Terminal
Earth (ground) Terminal
SAFETY INSTRUCTIONS
This chapter contains important safety
instructions that you must follow during
operation and storage. Read the following before
any operation to ensure 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
instrument.
5
PSB-1000 Series User Manual
Do not dispose electronic equipment as unsorted
municipal waste. Please use a separate collection
facility or contact the supplier from which this
instrument was purchased.
General
Guideline
CAUTION
Do not place any heavy object on the PSB-1000.
Avoid severe impact or rough handling that
leads to damaging the PSB-1000.
Do not discharge static electricity to the PSB-
1000.
Use only mating connectors, not bare wires, for
the terminals.
Do not block the cooling fan opening.
Do not disassemble the PSB-1000 unless you are
qualified.
(Measurement categories) EN 61010-1:2010 specifies the
measurement categories and their requirements as follows. The
PSB-1000 doesn’t fall under category II, III or IV.
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.
0 is for measurements performed on circuits not directly
connected to Mains.
Power Supply
WARNING
AC Input voltage range: 100Vac to 240Vac
Frequency: 47Hz-63Hz
To avoid electrical shock connect the protective
grounding conductor of the AC power cord to
an earth ground.
Safety Guidelines
6
SAFETY INSTRUCTIONS
Cleaning the PSB1000
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 containing harsh material
such as benzene, toluene, xylene, and acetone.
Operation
Environment
Location: Indoor, no direct sunlight, dust free,
almost non-conductive pollution (Note below)
Relative Humidity: 20%- 85%, no condensation
Altitude: Maximum 2000m
Temperature: 0°C to 40°C
(Pollution Degree) EN 61010-1:2010 specifies the pollution degrees
and their requirements as follows. The PSB-1000 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.
Storage
environment
Location: Indoor
Temperature: -25°C to 70°C
Relative Humidity: ≤90%, no condensation
Disposal
Do not dispose this instrument as unsorted
municipal waste. Please use a separate collection
facility or contact the supplier from which this
instrument was purchased. Please make sure
discarded electrical waste is properly recycled to
reduce environmental impact.
7
PSB-1000 Series User Manual
Green/ Yellow:
Earth
Blue:
Neutral
Brown:
Live (Phase)
Power cord for the United Kingdom
When using the instrument 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:
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.
8
GETTING STARTED
PSB-1000 Series Overview ............................................... 11
Series lineup .............................................................................................................. 11
Main Features ........................................................................................................... 12
Accessories ................................................................................................................ 13
Appearance ..................................................................... 15
Front Panel ............................................................................................................... 15
Rear Panel (PSB-1800L/M).................................................................................... 18
Rear Panel (PSB-1400L/M).................................................................................... 18
Status Bar Icons ....................................................................................................... 21
Menu Reference ....................................................................................................... 23
Theory of Operation ........................................................ 29
Operating Area Description ................................................................................... 29
CC and CV Mode .................................................................................................... 30
Slew Rate ................................................................................................................... 32
Bleeder Control ........................................................................................................ 32
Internal Resistance ................................................................................................... 33
GETTING STARTED
This chapter describes the power source in a
nutshell, including its main features and front /
rear panel introduction.
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PSB-1000 Series User Manual
Alarms ....................................................................................................................... 34
Considerations .......................................................................................................... 36
Grounding ................................................................................................................ 39
10
GETTING STARTED
Model name
Output Voltage
Output Current
Output Power
PSB-1400L
40
40
400
PSB-1400M
160
10
400
PSB-1800L
40
80
800
PSB-1800M
160
20
800
PSB-1000 Series Overview
Series lineup
The PSB-1000 Series consists of 4 models: PSB-1400L, PSB-1400M,
PSB-1800L, and PSB-1800M. Note that throughout the user manual,
the term “PSB-1000” refers to all the models in the PSB-1000 Series
lineup, unless stated otherwise.
11
Main Features
Performance
Maximum output voltage of 160V
Maximum output current of 80A
Features
OVP, OCP and OTP protection
Low AC input protection
Sequence function
Large 3.5 inch LCD panel
100V - 240V power inlet
Multi-range output power
Bleeder circuit ON/OFF setting
CV, CC priority start function
Internal resistance setting function
Parallel master/slave operation with active
current sharing
Remote sensing to compensate for voltage drop
in load leads
Analog output programming and monitoring
Interface
Ethernet port
USB host
USB CDC
GPIB (optional)
External Control I/O
PSB-1000 Series User Manual
12
Accessories
Standard
Accessories
Part number
Description
CD ROM
User manual,
programming manual
Power cord
PSW-009
Output terminal cover
GTL-240
Type A - B USB Cable
PSB-106
Basic Accessory Kit:
M4 terminal screws and
washers x2, M8
terminal bolts, nuts and
washers x2, Analog
control protection
dummy x1, analog
control lock level x2,
short bar x1.
Optional
Accessories
Part number
Description
PSW-001
Analog remote control
connector kit:
Socket x 1pc
Pins x 10pcs
Protection cover x 1 set
Chassis connection wire
x 1
PSW-002
Simple IDC
tool
PSW-003
Contact
removal tool
GETTING STARTED
13
PSB-1000 Series User Manual
PSB-101
Cable for 2 units of PSB1000 units in parallel mode
connection
PSB-102
Cable for 3 units of PSB1000 units in parallel mode
connection
PSB-103
Cable for 4 units of PSB1000 units in parallel mode
connection
PSB-104
Cable for 2 units of PSB1000 units in series mode
connection
PSB-105
GPIB card
GRA-418-J
Rack-mount adapter(JIS)
GRA-418-E
Rack-mount adapter(EIA)
GTL-123
Test leads: 1x red, 1x black
Download
Name
Description
gw_psb1k.inf
USB driver
14
GETTING STARTED
0 - 160V , 10A
S S
F 1 F 2 F 3 F 4 F 5
PSB-1400M
0 - 160V / 0 - 10A , 400W
Multi-Range DC Power Supply
Main
FUNC
FileUtility
0
1
4
7
2
5
8
3
6
9
Voltage
Clear
Enter Lock
Output
Current
OVP
OCP
Local
CLR PROT. Unlock
: Long Push
Power switch
LCD Display
Menu keys: Main/Local,
FUNC, Utility, File
Scroll wheel
Sense -
Arrow keys
Enter key
Lock/unlock
Output
F1~F5 soft-keys
USB A port - Terminal
Ground terminal + Terminal
Sense +
Number pad
Voltage, Current, OVP/
CLR PROT, OCP keys
Item
Description
Power Switch
Turns on the mains power.
Front Panel
Output Terminals
0 - 160V , 10A
S S
S
Positive sense terminal
Positive terminal
Appearance
Front Panel
15
PSB-1000 Series User Manual
0 - 160V , 10A
Ground terminal
Negative terminal
S
Negative sense terminal
USB A Port
The USB port is used for data
transfer, loading test scripts etc.
LCD Screen
Displays the voltage/current
settings, measurement readings
and menu systems.
Function Keys
F 1 F 2 F 3 F 4 F 5
Assigned to the soft-keys
displayed on the bottom of the
screen.
Main Key
Main
Local
Returns operation to the main
operation screen.
Local Key
Pressing the Main/Local key will
also return the unit to local mode
from remote control mode.
FUNC Key
FUNC
Enters the Function menu. The
function menu contains Power On
Configuration settings, Memory
settings, Voltage trigger settings
and the Sequence menu.
Utility Key
Utility
Enters the Utility menu. The utility
menu contains a number of system
settings.
File Key
File
Pressing the file key allows you to
copy, rename and delete files.
16
GETTING STARTED
Voltage
Voltage
Sets the constant voltage level.
Current
Current
Sets the constant current level.
OVP
OVP
CLR PROT.
Sets the over voltage protection
level.
CLR PROT
(Long press)
Holding the OVP key will clear
any tripped protection functions.
OCP
OCP
Sets the over current protection
level.
Scroll Wheel &
Arrow Keys
Both the scroll wheel and arrow
keys are used to navigate menu
items, pages or for
incrementing/decrementing
parameter values.
Enter
Enter
Used to confirm settings and
menu items.
Lock Key/ Unlock
Key
Unlock
Lock
Locks the front panel keys to
prevent accidentally changing
panel settings.
Note: The output can still be
turned off when the key lock in
active.
Unlock Key
(Long press)
Disables the key lock.
Output Key
Output
Turns the output on or off.
Clear Key
Clear
Clears entries that are made in the
number entry dialogs.
Number Pad
7
4
1
0
8
5
2
Clear
3
6
9
Used to enter values.
17
PSB-1000 Series User Manual
TRIG IN
TRIG OUT
LAN
100 240V
1100VA MAX.
AC
47 63Hz
GPIB
SER. NO. LB
VOLT TRIG
LANVOLT TRIG
TRIG OUT
TRIG IN
Line input GPIB Option
USB BJ1 ConnectorRear panel terminals
Fans
TRIG IN
TRIG OUT
LAN
100 240V
550VA MAX.
AC
47 63Hz
GPIB
SER. NO. LB
VOLT TRIG
LANVOLT TRIG
TRIG OUT
TRIG IN
Line input GPIB Option
USB BJ1 ConnectorRear panel terminals
Fan
Rear Panel (PSB-1800L/M)
Rear Panel (PSB-1400L/M)
18
GETTING STARTED
Line Voltage
Input
Voltage Input: 100 - 240 VAC
Line frequency: 47 - 63Hz (1100VA
MAX)
Rear panel
terminals
The rear panel terminals contain the positive and
negative output terminals, the voltage sense
terminals and the ground terminal.
J1 Connector
The J1 Connector is used
for external voltage,
current control or for
parallel/series control.
TRIG IN
TRIG IN
Used to receive a signal from an
external device.
Apply either a negative-going or a
positive-going pulse to the trigger
input pin.
TRIG OUT
TRIG OUT
Used to send a signal to an external
device.
The polarity of the trigger output
can also be configured.
VOLT TRIG
VOLT TRIG
Outputs a signal according to the
Voltage Trigger settings in the
Function menu.
The polarity of the voltage trigger
can also be configured.
LAN
LAN
The Ethernet port is used for remote
control and digital monitoring from
a PC.
19
PSB-1000 Series User Manual
USB-B
The USB-B port is used for remote
control.
GPIB Option
Optional GPIB communication card (PSB-105).
FAN
Temperature controlled fan.
20
GETTING STARTED
Status bar
Indicates if the output is
OFF.
An alarm icon will appear
on the status bar when one
of the protection functions
is tripped.
Indicates that the output
is in CV mode.
Indicates that the output
is in CC mode.
(Remote sense fail)
Indicates a problem with
the remote sense
connection.
Indicates that the output
is operating at 105% of
rated power (constant
power mode).
(Power fail) Indicates that
the external shutdown pin
was tripped.
Indicates that the unit is
in remote mode.
Indicates that the
instrument has hardware
errors.
Status Bar Icons
21
PSB-1000 Series User Manual
Speaker enabled.
Indicates that the GPIB
option is installed and
enabled.
Speaker disabled.
Indicates that the GPIB
option is installed and
disabled.
Indicates that the panel
lock is active.
Indicates that the
instrument is connected
with a PC.
Indicates that the panel
keys are unlocked.
Indicates that a USB flash
drive is inserted in the
front panel USB port.
Indicates that a USB
flash drive is inserted in
the front panel USB port,
but there is an access
error. Please re-insert.
Indicates that the
instrument is connected to
a LAN.
Indicates that the
instrument is connected
to a LAN, however,
there are configuration
errors. Please reconfigure the LAN
settings.
Indicates that the PSB-1000
is in LAN remote mode.
Indicates that the PSB1000 is in LAN remote
mode, but there are
connection errors. Please
re-configure the LAN
settings.
22
Level
Function/Operation
Description
1st
2nd
3rd
4th
Main
OCP Ctrl
Enables/Disables OCP
OCP Dly
Sets OCP delay time
Output
Delay
On Delay
Sets the Output On
delay time
Off Delay
Sets the Output Off
delay time.
I/V Control
CVHS
Sets the CV slew rate
to the maximum (High
Speed)
CCHS
Sets the CC slew rate
to the maximum (High
Speed)
CVLS
Sets the CV slew rate
CCLS
Sets the CC slew rate
Exit
Exits the I/V control
menu.
more 1 of
2
INT-R
Sets the internal
resistance.
Bleeder
Turns the bleeder
resistor on or off (of
auto).
Average
Sets the average level
for the smoothing
function (Low,
Middle, High)
More 2 of
2
Returns to the
previous page.
GETTING STARTED
Menu Reference
23
FUNC
View
Power On
Config.
Modify
CV Control
Sets CV control mode
CC Control
Sets CC control mode
PON Run
Sets the Power On
output settings (Turns
the output on or
executes a sequence at
start up)
Track
Sets the tracking mode
for multiple units
Ext-Out
Sets the Ext-Out line
active state
Breaker
Sets the breaker
resistor
Sense
Sets/disables local
sense
Exit
Exits from the View
Power On Config.
settings
View
Memory
M1
Shows the M1 settings
M2
Shows the M2 settings
M3
Shows the M3 settings
Exit
Exits the View
Memory menu.
Voltage
Trigger
Vtrig
Control
Enable/Disable
voltage trigger control
Vt1
Sets the leading edge
Vtrig level
Vt2
Sets the trailing edge
Vtrig level
Polarity
Sets the Vtrig polarity
as positive or negative
PSB-1000 Series User Manual
24
FUNC
(cont.)
TRIG IN
POS
Positive edge
NEG
Negative edge
Exit
Exits from the FUNC
menu.
TRIG OUT
POS
Positive edge
NEG
Negative edge
Exit
Exits from the FUNC
menu.
Sequence
Load
Loads the selected
sequence
Exit
Exits the sequence
menu
more 1 of
2
Copy to USB
Copies the selected
sequence to USB.
Copy to
SEQX
Copies the selected
sequence to another
sequence
Move to
SEQX
Move the selected
sequence to another
sequence
Clear
Clears the selected
sequence from the
memory
more 2 of 2
Returns to the
previous menu level
GETTING STARTED
25
Utility
System Information
Shows the serial
number and software
version
Interface
LAN
MAC
Address
Sets the MAC address
Host Name
Sets the host name
LAN Control
Enables/disables LAN
DHCP
Enables/disables
DHCP
Rear USB
Enables/disables USB
interface
GPIB
Enables/disables GPIB
interface
Error Log
LAN Log
Lists LAN errors
USB Log
Lists USB errors
GPIB Log
List GPIB errors
Clear
Clears the error logs
Exit
Exits to the previous
menu
Speaker
Enables/disables the
speaker
Lock
Mode0
Mode0 disables all
panel keys except the
ability to turn the load
off.
Mode1
Mode1 disables all
panel keys except the
ability to turn the load
on or off.
PSB-1000 Series User Manual
26
GETTING STARTED
Utility
(cont.)
Color
Brightness
Sets the brightness
level
Contrast
Sets the contrast level
Default
Default
brightness/contrast
settings
Exit
Exits to the previous
menu
Factory
Setting
Restore
Restore the factory
settings
Exit
Exits to the previous
menu
Calibration
Not applicable to endusers.
File
Copy to
USB
Copy the selected file
to USB
Copy to
Mx
Copy the selected file
to memory location
M0~9.
Save
Saves the current
settings to the selected
memory setting.
Recall
Recalls the selected
memory setting.
View
Memory
Goes to the View
Memory menu.
Copy to
memory
Copies the selected file
on the USB drive to
memory.
Delete
Deletes the selected
file on the USB drive.
Rename
Renames the selected
file on the USB drive.
27
PSB-1000 Series User Manual
Voltage
Sets the voltage output
settings
Current
Sets the current output
settings
OVP
Sets the OVP settings
OCP
Sets the OCP settings
28
GETTING STARTED
Background
The PSB-1000 power supplies are regulated DC
power supplies with a high voltage and current
output. These operate in CC or CV mode
within a wide operating range limited only by
the voltage, current or power output.
The operating area of each power supply is
determined by the rated output power as well
as the voltage and current rating.
Below is a comparison of the operating areas of
each power supply.
Voltage (V)
10 40
160
80
40
5
2.5
PSB-1000 Series Output Operating Area
PSB-1400MPSB-1800MPSB-1800LPSB-1400L
0
30
60
90
120 150
180
Current (A)
0
20
40
60
80
10
20
Theory of Operation
The theory of operation section describes the basic principles of
operation, protection modes and important considerations that
must be taken into account before use.
Operating Area Description
29
PSB-1000 Series User Manual
CC and CV mode
Description
When the power supply is operating in
constant current mode (CC) a constant current
will be supplied to the load. When in constant
current mode the voltage output can vary,
whilst the current remains constant. When the
load resistance increases to the point where the
set current limit (I
SET
) can no longer be
sustained the power supply switches to CV
mode. The point where the power supply
switches modes is the crossover point.
When the power supply is operating in CV
mode, a constant voltage will be supplied to
the load, whilst the current will vary as the
load varies. At the point that the load
resistance is too low to maintain a constant
voltage, the power supply will switch to CC
mode and maintain the set current limit.
The conditions that determine whether the
power supply operates in CC or CV mode
depends on the set current (I
SET
), the set voltage
(V
SET
), the load resistance (RL) and the critical
resistance (RC). The critical resistance is
determined by V
SET/ISET
. The power supply
will operate in CV mode when the load
resistance is greater than the critical resistance.
This means that the voltage output will be
equal to the V
SET
voltage but the current will be
less than I
SET
. If the load resistance is reduced
to the point that the current output reaches the
I
SET
level, the power supply switches to CC
mode.
CC and CV Mode
30
GETTING STARTED
Conversely the power supply will operate in
CC mode when the load resistance is less than
the critical resistance. In CC mode the current
output is equal to I
SET
and the voltage output is
less than V
SET
.
RL=R
C
RL<R
C
VSET
ISET
CV
CC
V
I
RL>R
C
Crossover
point
Note
For loads that generate a transient surge voltage,
VSET must be set so that the surge voltage does
not reach the voltage limit.
For loads in which transient peak current flows,
ISET must be set so that the peak value does not
reach the current limit.
31
Slew Rate
Theory
The PSB-1000 has selectable slew rates for CC
and CV mode(see page 81 for slew rate
control). This gives the PSB-1000 power supply
the ability to limit the current/voltage draw of
the power supply. Slew rate settings are
divided into High Speed and Low Speed. High
Speed mode will use the fastest slew rate for
the instrument. Low Speed mode allows for
user-adjustable slew rates for CC or CV mode.
The rising and falling slew rate can be set
independently.
CC or CV
High Speed
CC or CV Low
Speed
Background
The PSB-1000 DC power supplies employ a
bleed resistor in parallel with the output
terminals.
PSB1000
Load
Bleed
resistor
Bleed resistors are designed to dissipate the
power from the power supply filter capacitors
when power is turned off and the load is
PSB-1000 Series User Manual
Bleeder Control
32
GETTING STARTED
disconnected. Without a bleed resistor, power
may remain charged on the filter capacitors for
some time and be potentially hazardous.
In addition, bleed resistors also allow for
smoother voltage regulation of the power
supply as the bleed resistor acts as a minimum
voltage load.
The bleed resistance can be turned on or off
from the Main setting screen. See page 84 for
details.
Note
By default the bleed resistance is on. For battery
charging applications, be sure to turn the bleed
resistance off as the bleed resistor can discharge
the connected battery when the unit is off.
Background
On the PSB-1000 the internal resistance of the
power supply can be user-defined in software
(see page 83). When the internal resistance is
set it can be seen as a resistance in series with
the positive output terminal. This allows the
power supply to simulate power sources that
have internal resistances such as lead acid
batteries.
By default the internal resistance is 0Ω.
Internal
Resistance Range
Unit Model
Internal Resistance Range
PSB-1400L
0.000~1.000Ω
PSB-1400M
0.00~16.00Ω
PSB-1800L
0.000~0.500Ω
PSB-1800M
0.000~8.000Ω
Internal Resistance
33
PSB-1000 Series User Manual
OVP
Over voltage protection (OVP) prevents a high
voltage from damaging the load. This alarm
can be set by the user.
OCP
Over current protection prevents high current
from damaging the load. This alarm can be set
by the user.
OTP
Over temperature protection is a hardware
protection function.
AC-FAIL
AC Fail. This alarm function is activated when
a low AC input is detected. This protection
function will turn the output off.
Power Limit
This alarm is tripped when over the power
limit. This protection function will limit the
power to 105% of the rated power.
Shutdown
Force Shutdown is not activated as a result of
the PSB-1000 series detecting an error. It is a
function that is used to turn the output off
through the application of a signal from the
rear-panel analog programming connector
when an abnormal condition occurs. See page
163 for details on alarm monitoring using the
analog programming connector.
Alarms
The PSB-1000 power supplies have a number of protection features.
When one of the protection alarms are tripped, an alarm message
will appear on the display the corresponding alarm icon (OCP,
OVP etc) will appear in the status bar. When an alarm has been
tripped the output will be automatically turned off or the power
supply will turn off, depending on the type of alarm and on the
Breaker Control settings (page 95). For details on how to clear an
alarm or to set the protection modes, please see pages 72, 69 & 71.
34
GETTING STARTED
Alarm output
Alarms are output via the analog
programming connector. The alarm output is
an isolated open-collector photo coupler
output. See page 163 for details on alarm
monitoring using the analog programming
connector.
35
PSB-1000 Series User Manual
Inrush current
When the power supply switch is first turned
on, an inrush current is generated. Ensure there
is enough power available for the power
supply when first turned on, especially if a
number of units are turned on at the same
time.
Pulsed or Peaked
loads
When the load has current peaks or is pulsed, it
is possible for the maximum current to exceed
the mean current value. The PSB-1000 power
supply ammeter only indicates mean current
values, which means for pulsed current loads,
the actual current can exceed the indicated
value. For pulsed loads, the current limit must
be increased, or a power supply with a greater
capacity must be chosen. As shown below, a
pulsed load may exceed the current limit and
the indicated current on the power supply
ammeter.
Current limit
level
Measured
Ammeter
current
Considerations
The following situations should be taken into consideration when
using the power supply.
36
GETTING STARTED
Reverse Current:
Regenerative load
When the power supply is connected to a
regenerative load such as a transformer or
inverter, reverse current will feed back to the
power supply. The PSB-1000 power supply
cannot absorb reverse current. For loads that
create reverse current, connect a resistor in
parallel to the power supply to bypass the
reverse current. This description only applies
when the bleed resistance is off.
PSB1000
Load
Resistor
Reverse current
Note
The current output will decrease by the amount of
current absorbed by the resistor.
Ensure the resistor used can withstand the power
capacity of the power supply/load.
Reverse Current:
Accumulative
energy.
When the power supply is connected to a load
such as a battery, reverse current may flow
back to the power supply if the bleed resistance
is on. To prevent damage to the power supply
under this condition, use a reverse-currentprotection diode in series between the power
supply and load. If the bleed resistor is turned
off or set to auto, there is no need to add a
diode.
PSB-
1000
Load
Diode
37
PSB-1000 Series User Manual
CAUTION
Ensure the reverse withstand voltage of the diode
is able to withstand 2 times the rated output
voltage of the power supply and the forward
current capacity can withstand 3 to 10 times the
rated output current of the power supply.
Ensure the diode is able to withstand the heat
generated in the following scenarios.
When the diode is used to limit reverse voltage,
remote sensing cannot be used.
38
GETTING STARTED
Floating
As the output terminals are floating, the load
and all load cables must have an insulation
capacity that is greater than the isolation
voltage of the power supply.
PSB-
1000
Load
Ext-V
Ext-R
Analog
connector
( ) Insulation capacity ≥ isolation voltage
of power supply
WARNING
If the insulation capacity of the load and load
cables are not greater than the isolation voltage of
the power supply, electric shock may occur.
Grounding
The output terminals of the PSB-1000 power supplies are isolated
with respect to the protective grounding terminal. The insulation
capacity of the load, the load cables and other connected devices
must be taken into consideration when connected to the protective
ground or when floating.
39
PSB-1000 Series User Manual
Grounded output
terminal
If the positive or negative terminal is connected
to the protective ground terminal, the
insulation capacity needed for the load and
load cables is greatly reduced. The insulation
capacity only needs to be greater than the
maximum output voltage of the power supply
with respect to ground.
PSB-
1000
Load
Ext-V
Ext-R
Analog
connector
( ) Insulation capacity ≥ voltage of power
supply with respect to ground
CAUTION
If using external voltage control, do not ground
the external voltage terminal as this will create a
short circuit.
40
OPERATION
Set Up ............................................................................. 43
Power Up .................................................................................................................. 43
Wire Gauge Considerations .................................................................................... 44
Output Terminals .................................................................................................... 45
Remote Sense ........................................................................................................... 48
Using the Output Terminal Cover Rear Panel ..................................................... 49
Installing Hardware Options .................................................................................. 50
Using the Rack Mount Kit...................................................................................... 52
How to Use the Instrument ................................................................................... 53
Reset to Factory Settings ........................................................................................ 58
System Information ................................................................................................. 59
Speaker Sound .......................................................................................................... 60
LCD Configuration ................................................................................................. 61
USB Driver Installation .......................................................................................... 62
Basic Operation .............................................................. 65
Setting the Output Voltage Level .......................................................................... 65
Setting the Output Current Level .......................................................................... 67
Setting the OVP Level ............................................................................................ 69
Setting the OCP Level ............................................................................................. 71
Alarm Clear ............................................................................................................... 72
Panel Lock ................................................................................................................ 74
Turning the Output On .......................................................................................... 76
Advanced Settings ........................................................... 77
Enable OCP Control ............................................................................................... 77
OCP Delay ................................................................................................................ 78
Output Delay ............................................................................................................ 79
Slew Rate Control .................................................................................................... 81
Internal Resistance ................................................................................................... 83
Bleeder Resistor Settings ......................................................................................... 84
Average Settings ....................................................................................................... 85
OPERATION
41
PSB-1000 Series User Manual
Power On Configuration .................................................. 86
CV Control Settings ................................................................................................ 87
CC Control Settings ................................................................................................. 89
Power on Run Settings ............................................................................................ 91
Tracking Control ...................................................................................................... 93
External Control of Output (Ext-Out) ................................................................. 94
Breaker Control ........................................................................................................ 95
Sense Control ........................................................................................................... 96
Parallel/Series Operation ................................................ 98
Master-Slave Parallel Overview.............................................................................. 99
Parallel Connection ................................................................................................ 102
Parallel Operation .................................................................................................. 106
Master-Slave Series Overview .............................................................................. 109
Series Connection .................................................................................................. 112
Series Operation ..................................................................................................... 115
File Operations .............................................................. 118
View Internal Memory Settings ........................................................................... 118
Save/Recall Internal Memory Settings ................................................................ 119
Copy Internal Memory File .................................................................................. 120
Copy USB File to Internal Memory .................................................................... 122
Delete Files on USB Flash Drive ......................................................................... 123
Rename Files on the USB Flash Drive ............................................................... 125
Sequence Function ......................................................... 127
Sequence File Format ............................................................................................ 128
Copy Sequence from a USB Flash Disk to Internal Memory .......................... 128
Load and Run a Sequence from a USB Flash Disk ........................................... 130
Copy, Move, Clear Sequences in Internal Memory ........................................... 132
Load and Run Sequence from Internal Memory ............................................... 135
Trigger Input & Output ................................................... 138
TRIG IN BNC ....................................................................................................... 138
TRIG OUT BNC .................................................................................................. 139
Voltage Trigger ....................................................................................................... 141
42
Set Up
Steps
1. Connect the power cord to
the rear panel socket.
2. Press the POWER key. The splash screen will
appear momentarily before the continuous
mode screen appears with the settings loaded.
CAUTION
The power supply takes around 10 seconds to fully
turn on and around half that time to shutdown.
Do not turn the power on and off quickly.
Power Up
OPERATION
43
PSB-1000 Series User Manual
Background
Before connecting the output terminals to a
load, the wire gauge of the cables should be
considered.
It is essential that the current capacity of the
load cables is adequate. The rating of the cables
must equal or exceed the maximum current
rated output of the instrument.
Recommended
wire gauge
Wire Gauge
Nominal Cross
Section
Maximum Current
20
0.5 9 18
0.75
11
18
1
13
16
1.5
18
14
2.5
24
12
4
34
10
6
45 8 10
64 6 16
88 4 25
120 2 32
145 1 50
190 0 70
240 0 95
290 0 120
340
The maximum temperature rise can only be 60
degrees above the ambient temperature. The
ambient temperature must be less than 30 deg.
Wire Gauge Considerations
44
OPERATION
Background
Before connecting the output terminals to the
load, first consider whether voltage sense will
be used, the gauge of the cable wiring and the
withstand voltage of the cables and load.
The output terminals can be connected to load
cables using M4 sized screws or M8 sized bolts.
WARNING
Dangerous voltages. Ensure that the power to the
instrument is disabled before handling the power
supply output terminals. Failing to do so may lead
to electric shock.
Steps
1. Turn the power switch off.
2. Remove the output terminal cover.
→ Page 49
3. If necessary, connect the ground terminal to
either the positive or negative terminal. (See
page 39 for grounding considerations)
For the front panel use the shorting bar that is
attached to the ground terminal.
Output Terminals
45
PSB-1000 Series User Manual
For the rear panel use a ground cable.
4. Choose a suitable wire gauge for
the load cables.
→ Page 44
5. Choose a suitable crimp for the terminals.
6. Connect the positive load cable to the positive
output terminal and the negative cable to the
negative output terminal.
7. Configure the unit to local or
voltage sense and connect sense
cables if using remote sense.
→ Page 47
8. Reattach the output terminal
cover.
→ Page 49
Front panel
connection with
voltage sense
wiring
Sense+
Sense-
GND
- Potentional + Potentional
46
OPERATION
Rear panel
connection with
voltage sense
wiring
Sense+
Sense-
GND
- Potentional
+ Potentional
CAUTION
The front panel terminals are limited to the
following output currents:
PSB-1400L: 30A
PSB-1400M: 10A
PSB-1800L: 30A
PSB-1800M: 20A
47
PSB-1000 Series User Manual
WARNING
Ensure the output is off before connecting any
sense cables. Use sense cables with a voltage
rating exceeding the isolation voltage of the power
supply. Never connect sensing cables when the
output is on. Electric shock or damage to the
power supply could result.
Single Load
1. Connect the Sense+ terminal to the positive
potential of the load. Connect the Senseterminal to the negative potential of the load.
Output
Sense
Sense
PSB
Output
Load
Input
Input
2. When using voltage sense, disable
the local sense in the Power ON
Configuration menu.
→ Page 96
3. Operate the instrument as normal.
See the Basic Operation chapter for
details.
→ Page 65
Remote Sense
Remote sense is used to compensate for the voltage drop seen
across load cables due to the resistance inherent in the load cables.
The remote sense terminals are connected to the load terminals to
determine the voltage drop across the load cables.
Remote sense can compensate up to 0.6 volts. Load cables should
be chosen with a voltage drop less than the compensation voltage.
Remote sense can also be used when the multiple power supplies
are operated in parallel and series. See page 104 and 114
respectively for details.
48
OPERATION
WARNING
Dangerous voltages. Ensure that the power to the
instrument is disabled before handling the power
supply output terminals. Failing to do so may lead
to electric shock.
Steps
1. Remove the screw holding the top cover to the
bottom cover.
2. Line-up the bottom cover with the notches in
the output terminals.
3. Place the top terminal cover over the bottom
cover.
2
3
1
Detail
Details
4. Use your thumb to slide the terminal covers
shut, as shown in the diagram below.
5. When the top and bottom covers are flush, re-
insert the screw that was removed in step 1.
Using the Output Terminal Cover Rear Panel
49
PSB-1000 Series User Manual
4
5
Removal
Reverse the procedure to remove the terminal
covers.
Background
An optional GPIB interface can be installed into
the option slot located on the rear panel.
Options
PSB-105
GPIB Interface card
CAUTION
Ensure the power is off before installing any of the
optional modules. Failing to do so may damage
the unit.
Installation
1. Turn off the power switch.
2. Unscrew the two screws holding the options
panel plate.
Installing Hardware Options
50
OPERATION
2
3. Slide the module PCB onto the rails on the
inside of the module slot.
4. Secure the module with the screws that were
removed from step 2.
4
3
5. The module will be recognized upon startup.
51
PSB-1000 Series User Manual
Background
The PSB-1000 series has an optional Rack
Mount Kit (GW Instek part number: GRA-418J(JIS) or GRA-418-E(EIA). The GRA-418 has a
3U rack height(EIA). Please see your
distributor for further rack mount details.
Rack mount
illustration
EIA shown.
Using the Rack Mount Kit
52
OPERATION
Background
The PSB-1000 power supplies generally use the
scroll wheel, arrow keys, Enter keys and softmenu function keys to edit numerical values or
to select menu options.
The following section will explain some of
these concepts in detail.
Soft menu keys
1. The F1 ~ F5 function keys at the bottom of the
display correspond directly to soft-menu keys
above. The soft-menu keys have a number of
different functions, depending on the use-case.
They can be used as quick-action keys, option
keys or as submenus.
0 - 160V , 10A
S S
F 1 F 2 F 3 F 4 F 5
PSB-1400M
0 - 160V / 0 - 10A , 400W
Multi-Range DC Power Supply
Main
FUNC
FileUtility
0
1
4
7
2
5
8
3
6
9
Voltage
Clear
Enter Lock
Output
Current
OVP
OCP
Local
CLR PROT. Unlock
: Long Push
F1 ~ F5
function keys
Soft-menu
keys
Menu Keys
Pressing a Menu key will enter the
corresponding menu for that key.
How to Use the Instrument
53
PSB-1000 Series User Manual
Selecting Menu
Items
2. Turn the scroll wheel to select
parameters in menus and lists. The
selected parameter will be
highlighted in orange. The scroll
wheel is also used to
increment/decrement setting
values.
3. Press the Enter key to edit the
parameter or to enter the selected
menu.
Enter
Example
Selected menu item
The following is an example of the Function menu
that appears when the FUNC key is pressed.
Navigating Menus
one page at a time
For menus with more than 1
page of items, pressing the
directional keys will allow you
to jump to the next menu page.
Using the Keypad
to edit parameter
values
When editing a value the keypad can be used
to directly enter the desired value.
54
OPERATION
4. Type the value of the
parameter using the
keypad.
7
4
1
0
8
5
2
Clear
3
6
9
5. Press the Enter key to confirm the
edit.
Enter
Example
Parameter
Using the Arrow
Keys and Scroll
wheel to edit
parameter values
For some values, the scroll wheel and arrow
keys can be used.
1. Use the arrow keys to move to
the digit of the desired power
(shown in blue).
2. Turn the scroll wheel to edit the
value by the resolution of the
selected digit.
Cursor
55
PSB-1000 Series User Manual
3. Repeat the steps above for all the relevant
digits.
4. Press the Enter key to confirm the
edit.
Enter
Using the
onscreen
keyboard
The onscreen keyboard is used for creating
filenames, renaming files, and so on. The
screenshot below is an example of the onscreen
keyboard.
Entered characters
On-screen keyboard
1. Use the scroll wheel to move
the cursor to the desired
character on the keyboard.
2. Press Enter character [F2] or the
right arrow key to enter the
desired character into the text
entry area.
OR
3. Use the A ↔ a 1 ↔ ! [F1] key to
toggle the keyboard to lower
case characters and other nonalphanumeric characters.
56
OPERATION
4. Use the left arrow key to delete
the character to the left of the
cursor.
5. Press Enter to finish using the
keyboard.
Enter
57
PSB-1000 Series User Manual
Background
The factory default settings can be restored
from the Utility menu. See page 188 for the list
of factory settings.
Steps
1. Press the Utility key. The Utility
menu will appear on the display.
Utility
2. Use the scroll wheel to go to Factory Setting and
press Enter.
3. Press Restore[F4] to restore the
factory settings.
4. Press OK[4] to confirm.
List of factory
settings
Restore
Note
The factory settings can be viewed by using the
scroll wheel or the arrow keys.
Reset to Factory Settings
58
OPERATION
Background
The Utility>System Information setting
displays the serial number and software
version number.
Steps
1. Press the Utility key. The Utility
menu will appear on the display.
Utility
2. Use the scroll wheel to go to System Information
and press Enter.
3. The system information should now be listed
on the display.
Example
System Information
System Information
59
Speaker Sound
Background
The Utility>Speaker setting enables or disables
sounds for both key-presses and alarms. By
default sound is disabled.
Steps
1. Press the Utility key. The Utility
menu will appear on the display.
Utility
2. Use the scroll wheel to go to Speaker.
3. Press Disable[F1] to turn the
speaker sound off.
The icon will appear in the icon bar.
4. Press Enable[F2] to turn the
speaker sound on.
The icon will appear in the icon bar.
Speaker settings
Disable Enable
PSB-1000 Series User Manual
60
OPERATION
Background
The Color setting in the Utility menu sets the
brightness and contrast level of the LCD
display.
Steps
1. Press the Utility key. The Utility
settings will appear on the display.
Utility
2. Use the scroll wheel to go to Color and press
Enter.
3. Set the brightness and contrast.
Use the arrow keys to select
Contrast or Brightness.
Use the scroll wheel to set the
level.
Contrast
1 ~ 100 (Default=20)
Brightness
1 ~ 100 (Default=50)
Default Settings
4. Press Default[F1] to set all the LCD settings to
the default levels.
LCD settings
Default settings
LCD Configuration
61
PSB-1000 Series User Manual
Background
If the USB Type B interface is to be used for
remote control, the USB driver needs to be
installed.
Note
The USB driver, GW_PSB1k, is located on the CD
Rom that accompanied this user manual.
Alternatively the driver can be downloaded from
the GW Instek website.
For information on the USB interface, see page
167.
Steps
1. Connect the rear panel USB-B port on the PSB-
1000 to the PC using a USB Type A to B cable.
2. Go the Windows Device Manager.
For Windows 7:
Start > Control Panel > Hardware and Sound
> Device Manager
3. The PSB-1000 will be located under Other
Devices in the hardware tree. Right-click
PSB-1XXX and choose Update Driver Software.
USB Driver Installation
62
OPERATION
4. From the hardware wizard choose Browse my
computer driver software.
5. Set the file path to the location of the USB
driver, click Next and finish the driver
installation.
63
PSB-1000 Series User Manual
6. The PSB-1000 will now be located in the Ports
node of the hardware tree in the Windows
Device Manager if the driver installation was
successful.
64
OPERATION
Background
The voltage setting sets the voltage level of the
power supply.
Steps
1. Press the Voltage key. The V Set
parameter will be editable.
Voltage
2. Set the voltage with the scroll wheel/keypad or
with the F1 ~ F5 soft-keys.
Range
0 volts ~ 105% full range
Soft-keys
1 of 2: DEF1, DEF2, DEF3
2 of 2: Step↗, Step↘, MAX, MIN
3. Press Enter to confirm the voltage setting.
Basic Operation
This section describes the basic operations required to operate the
power supply.
Setting the Output Voltage Level → from page 65
Setting the Current Level→ from page 67
Setting the OVP Level → from page 69
Setting the OCP Level → from page 71
Clearing the Protection Alarms → from page 72.
Panel Lock → from page 74.
Turning the Output On → from page 76.
Before operating the power supply, please see the Getting Started
chapter, page 9.
Setting the Output Voltage Level
65
PSB-1000 Series User Manual
Save Preset
Settings
The DEF1, DEF2 & DEF3 preset settings are
user defined settings. By default they are set to
0 volts.
The Step↗ & Step↘ preset settings increase or
decrease the voltage setting by the set amount.
4. Press the Voltage key. The V Set
parameter will be editable.
Voltage
5. Set the voltage with the keypad. Do not use the
scroll wheel.
Range
0 volts ~ 105% full range
6. Press F1 ~ F5 to save the corresponding soft-
key to the voltage value set above.
Soft-keys
1 of 2: DEF1, DEF2, DEF3
2 of 2: Step↗, Step↘
7. Press F4 Exit or Enter to confirm and exit the
preset setting.
Note
Trying to set the voltage outside of the voltage
range will result in an Over Range error message
being displayed on the screen.
The voltage level can be set when the output is on.
66
OPERATION
Example
Voltage setting
Preset voltage settings
F3 F4F1 F2 F5
Background
The current setting sets the current level of the
power supply.
Steps
1. Press the Current key. The A Set
parameter will be editable.
Current
2. Set the current with the scroll wheel/keypad or
with the F1 ~ F5 soft-keys.
Range
0 amps ~ 105% full range
Soft-keys
1 of 2: DEF1, DEF2, DEF3
2 of 2: Step↗, Step↘, MAX, MIN
3. Press Enter to confirm the current setting.
Save Preset
Settings
The DEF1, DEF2 & DEF3 preset settings are
user defined settings. By default they are set to
0 amps.
The Step↗ & Step↘ preset settings increase or
decrease the current setting by the set amount.
Setting the Output Current Level
67
PSB-1000 Series User Manual
4. Press the Current key. The V Set
parameter will be editable.
Current
5. Set the current with the keypad. Do not use the
scroll wheel.
Range
0 amps ~ 105% full range
6. Press F1 ~ F5 to save the corresponding soft-
key to the current value set above.
Soft-keys
1 of 2: DEF1, DEF2, DEF3
2 of 2: Step↗, Step↘
7. Press F4 Exit or Enter to exit and confirm the
preset setting.
Note
Trying to set the current outside of the current
range will result in an Over Range error message
being displayed on the screen.
The current level can be set when the output is on.
Example
Current setting
Preset current settings
F3 F4F1 F2 F5
68
OPERATION
Background
The over voltage protection (OVP) protects the
unit from overvoltage. When the voltage level
crosses the OVP threshold, the output is
automatically turned off.
Steps
1. Press the OVP key. The V Protect
parameter will be editable.
OVP
CLR PROT.
2. Set the OVP threshold level with the scroll
wheel/keypad or with the F1 ~ F5 soft-keys.
Range
4 ~ 44V (1400L)
5 ~ 176V (1400M)
4 ~ 44V (1800L)
5 ~ 176V (1800M)
Soft-keys
DEF1, DEF2, DEF3, MAX, MIN
3. Press Enter to confirm the OVP setting.
Save Preset
Settings
The DEF1, DEF2 & DEF3 preset settings are
user defined settings. By default they are set to
lowest settable level.
4. Press the OVP key. The V Protect
parameter will be editable.
OVP
CLR PROT.
5. Set the OVP threshold level with the keypad.
Do not use the scroll wheel.
Range
4 ~ 44V (1400L)
5 ~ 176V (1400M)
4 ~ 44V (1800L)
5 ~ 176V (1800M)
Setting the OVP Level
69
PSB-1000 Series User Manual
6. Press F1 ~ F3 to save the corresponding soft-
key to the OVP threshold value set above.
Soft-keys
DEF1, DEF2, DEF3
7. Press F5 Exit to confirm and exit the preset
setting.
Note
Trying to set the OVP threshold level outside of the
OVP range will result in an Over Range error
message being displayed on the screen.
The OVP threshold level can be set when the
output is on.
Example
OVP setting
Preset OVP settings
F3 F4F1 F2 F5
70
OPERATION
Background
The over current protection (OCP) protects the
unit from overcurrent. When the current level
crosses the OCP threshold level, the output is
automatically turned off.
Steps
1. Press the OCP key. The A Protect
parameter will be editable.
OCP
2. Set the OCP level with the scroll wheel/keypad
or with the F1 ~ F5 soft-keys.
Range
4 ~ 44A (1400L)
1 ~ 11A (1400M)
5 ~ 88A (1800L)
2 ~ 22A (1800M)
Soft-keys
DEF1, DEF2, DEF3, MAX, MIN
3. Press Enter to confirm the OCP setting.
Save Preset
Settings
The DEF1, DEF2 & DEF3 preset settings are
user defined settings. By default they are set to
the lowest settable level.
4. Press the OCP key. The A Protect
parameter will be editable.
OCP
5. Set the OCP threshold level with the keypad.
Do not use the scroll wheel.
Range
4 ~ 44A (1400L)
1 ~ 11A (1400M)
5 ~ 88A (1800L)
2 ~ 22A (1800M)
Setting the OCP Level
71
PSB-1000 Series User Manual
6. Press F1 ~ F3 to save the corresponding soft-
key to the OCP threshold value set above.
Soft-keys
DEF1, DEF2, DEF3
7. Press F5 Exit to confirm and exit the preset
setting.
Note
Trying to set the OCP threshold level outside of the
OCP range will result in an Over Range error
message being displayed on the screen.
The OCP threshold level can be set when the
output is on.
Example
OCP setting
Preset OCP settings
F3 F4F1 F2 F5
Background
The CLR_PROT (Clear Protection) function will
clear any protection alarms.
Applicable
Alarms
OVP, OCP, OTP, AC-Fail, Power Limit
Note
Note that an alarm can only be cleared if the
FUNC>View POC>Breaker setting is set to
“Disable”. See page 95 for details.
Alarm Clear
72
OPERATION
Steps
1. Press and hold the OVP key to
clear any alarms.
OVP
CLR PROT.
Example
Alarm message
Protection indicator
73
PSB-1000 Series User Manual
Activate the panel
lock
1. Press the Lock key to active the
panel lock. The Lock key will turn
green.
The padlock icon at the top of the
display will become “locked”
when the panel keys are locked.
Unlock
Lock
Disable the panel
lock
2. Hold the Lock key for ~3 seconds to
disable the panel lock.
The Lock key light will turn off
and the padlock icon will “open”.
Unlock
Lock
(hold)
Set the lock mode
3. Press the Utility key. The Utility
menu will appear on the display.
Utility
4. Use the scroll wheel to go to Lock.
5. Press Mode0[F1] to set the panel
lock to Mode0.
6. Press Mode1[F2] to set the panel to
lock to Mode1.
Panel Lock
The panel lock feature prevents settings from being changed
accidentally. When activated, all keys and knobs except the
Lock/Unlock key and the Output key will be disabled.
The panel lock has two modes: Mode 0 and Mode 1. Mode 0 only
allows the Output key to turn the load off when the panel lock is
active. Mode 1 allows the Output key to turn the load on or off
when the panel lock is active.
74
OPERATION
Example
Message Lock icon
A message will show “Key lock!” if trying to
use the front panel keys when the key lock is
on.
75
PSB-1000 Series User Manual
Warning
Both of these outputs are electrically linked. Only one
DUT should be connected to any one of the outputs at
a time. Using both outputs at the same time is not
supported. Using the front and rear outputs at the
same time could cause dangerous operating
conditions. See page 44 for details about using the
output terminals or sockets.
Turn Output On
Press the Output key. The Output
key will turn green and CC or CV
will be displayed in the status bar
to indicate that the output is on.
Output
Turn Output Off
Press the Output key. The Output
key light will go out and OFF will
be displayed in the status bar to
indicate that the output is off.
Output
Turning the Output On
When the output is turned on, the DUT can be connected to either
the rear panel output or the front panel output.
76
OPERATION
Background
The over current protection can be turned
enabled or disabled from the Main menu
screen.
Steps
1. Press the Main key.
Main
2. Press OCP Ctrl[F1] to enable or
disable OCP control.
Example
OCP Control
Advanced Settings
Enable OCP Control → from page 77
OCP Delay → from page 78
Output Delay → from page 79
Slew Rate Control → from page 81
Internal Resistance → from page 83
Bleeder Resistor Settings → from page 84
Average Settings → from page 85
Enable OCP Control
77
OCP Delay
Background
Sets the OCP delay time. This parameter will
delay the amount of time it takes to trigger the
over current protection. This function can be
useful to prevent current overshoot from
triggering OCP.
Example
Time
OCP delay time
OCP activated
Current
OCP
level
OCP tripped
Steps
1. Press the Main key.
Main
2. Press OCP Dly[F2] to edit the OCP
delay time.
3. Key in the delay time using the keypad and
press Enter.
Range
0.1 ~ 2.0s, 0:Auto
Example
OCP Delay settings
PSB-1000 Series User Manual
78
Output Delay
Background
A delay time can be configured to delay turning
the output on or to delay turning the output off.
After a delay time is set, a timer on the display
will count down the delay time each time the
output is turned on or off, depending on the
setting.
Output On Delay
Example
Time
On Delay time
Output enabled
Output
Output turned on
Output Off Delay
Example
Time
Off Delay time
Output disabled
Output
Output turned off
Steps
1. Press the Main key.
Main
2. Press Output Delay[F3].
3. Use the scroll wheel to select On Delay or Off
Delay and press Enter.
4. Use the keypad to enter the delay time and
press Enter.
On Delay
0.00 ~ 100.00 seconds
Off Delay
0.00 ~ 100.00 seconds
OPERATION
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PSB-1000 Series User Manual
Example
On/Off Delays
settings
Delay time
Output Delay menu
Countdown timer
80
OPERATION
Background
The I/V Control menu controls the current and
voltage slew rate settings.
Parameter
Settings
CVHS
CV high speed. Highest speed voltage
slew rate.
CVLS
CV low speed. User defined voltage
slew rate.
CCHS
CC high speed. Highest speed current
slew rate.
CCLS
CC low speed. User defined current
slew rate.
Steps
1. Press the Main key.
Main
2. Press I/V Control[F4].
3. Use the scroll wheel to highlight I/V Mode.
4. Use the function keys to select the
appropriate mode.
Ex.
I/V Mode
CVHS, CCHS, CVLS, CCLS
5. To set the CVLS or CCLS slew rate, use the
scroll wheel to go VSR↗, VSR↘, ISR↗ or ISR↘
and the press Enter. A solid blue checkbox
indicates which settings correspond to the
CVLS or CCLS mode.
Use the number pad to key in the slew rate or
press Min[F1] or Max[F2].
Slew Rate Control
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PSB-1000 Series User Manual
VSR
0.01 ~ (rating voltage x 2)
ISR
0.01 ~ (rating current x 2)
Soft-keys
Min[F1], Max[F2]
Example
Select I/V
Mode
Current mode
Min/Max slew rate
CVLS & CCLS
slew rate settings
I/V Mode settings
Selected
setting
82
OPERATION
Background
When the internal resistance is set, it is seen as a
resistance in series with the positive terminal.
This allows the power supply to simulate
power sources that have internal resistances,
such as lead acid batteries.
By default the internal resistance is set to 0Ω.
Steps
1. Press the Main key.
Main
2. Press more 1 of 2[F5] >
INT-R[F1].
>
3. Use the number pad to key in the internal
resistance.
The new internal resistance setting will be
shown on the INT-R soft-key.
INT-R
PSB-1400L
0.000Ω ~ 1.000Ω
PSB-1400M
0.00Ω ~ 16.00Ω
PSB-1800L
0.000Ω ~ 0.500Ω
PSB-1800M
0.000Ω ~ 8.000Ω
Example
Internal resistance settings
Internal Resistance
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PSB-1000 Series User Manual
Background
The PSB-1000 power supplies employ a bleed
resistor in parallel with the output terminals.
Bleeder Settings
Bleeder
OFF, ON, Auto
Note
By default the bleed resistance is on. For battery
charging applications, be sure to turn the bleed
resistance off as the bleed resistor can discharge
the connected battery when the unit is off.
Steps
1. Press the Main key.
Main
2. Press more 1 of 2[F5] >
Bleeder[F2].
>
3. Press Bleeder[F2] repeatedly to cycle through
the bleeder settings.
The new bleeder setting will be shown on the
Bleeder soft-key.
Bleeder
OFF, ON, Auto
Example
Bleeder settings
Bleeder Resistor Settings
84
OPERATION
Background
The average settings are used to set the level of
smoothing for the voltage and current readback
measurements. A higher average setting reduces
the measurement speed, a lower setting has a
faster measurement speed.
Average Settings
Average
Low, Middle, High
Steps
1. Press the Main key.
Main
2. Press more 1 of 2[F5] >
Average[F3].
>
3. Press Average[F3] repeatedly to cycle through
the settings.
The new Average setting will be shown on the
Average soft-key.
Average
Low, Middle, High
Example
Average settings
Average Settings
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PSB-1000 Series User Manual
Power On Configuration
Power ON Configuration controls a number of advanced settings
that can be activated at power up. At each startup a splash screen
will be shown on the screen to inform you of the Power ON
Configuration settings.
CV Control Settings → from page 87
CC Control Settings → from page 89
Power on Run Settings → from page 91
Tracking Control → from page 93
External Control of Output (Ext-Out) → from page 94
Breaker Control → from page 95
Sense Control → from page 96
86
OPERATION
Parameter
Settings
The CV Control setting sets the CV control mode
to local or external voltage/resistance control.
Local control allows you to use the front panel
keys to control the constant voltage level.
External Voltage control allows an external voltage
of 0 ~ 10V to control the constant voltage level. The
external voltage is applied to pins 3 & 16 on the
rear panel Analog Programming connector on the
rear panel. See page 147 for usage details.
External Resistance control allows a resistance of
0Ω to 10kΩ(Ext-R↗) or 10kΩ to 0Ω(Ext-R↘) to
control the constant voltage level. The external
resistance is applied to the 5 & 6 pins of the rear
panel Analog Programming connector. See page
150 for usage details.
Steps
1. Press the FUNC key.
FUNC
2. Use the scroll wheel to go to Power on Config
and press Enter.
3. Go to the CV Control setting using the scroll
wheel and press Modify[F1].
4. Use the F1 ~ F4 soft-keys to select the CV
control mode.
Mode
Local, Ext-V, Ext-R↗, Ext-R↘
CV Control Settings
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PSB-1000 Series User Manual
5. Press Enter to save the settings.
6. The next time the unit is turned on the new CV
Control settings will be activated. This will be
displayed on the screen at startup.
Example
Modify CV Control mode
CV Control
88
OPERATION
Parameter
Settings
Sets the constant current (CC) control mode
between local and external voltage/resistance
control.
Local control allows you to use the front panel
keys to control the constant current level.
External Voltage control allows an external voltage
of 0 ~ 10V to control the constant current level. The
external voltage is applied to pins 4 & 16 on the
rear panel Analog Programming connector on the
rear panel. See page 147 for usage details.
External Resistance control allows a resistance of
0Ω to 10kΩ(Ext-R↗) or 10kΩ to 0Ω(Ext-R↘) to
control the constant current level. The external
resistance is applied to the 7 & 8 pins of the rear
panel Analog Programming connector. See page
150 for usage details.
Steps
1. Press the FUNC key.
FUNC
2. Use the scroll wheel to go to Power on Config
and press Enter.
3. Go to the CC Control setting using the scroll
wheel and press Modify[F1].
4. Use the F1 ~ F4 soft-keys to select the CC
control mode.
Mode
Local, Ext-V, Ext-R↗, Ext-R↘
CC Control Settings
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PSB-1000 Series User Manual
5. Press Enter to save the settings.
6. The next time the unit is turned on the new CC
Control settings will be activated. This will be
displayed on the screen at startup.
Example
Modify CC Control mode
CC Control
90
OPERATION
Parameter
Settings
The PON Run settings set the run state of the unit
when the power is turned on. The unit can be
configured to automatically turn the output on
with the last used settings or it can be configured
to run a pre-saved sequence program. By default
the PON Run setting is disabled (set to None).
Steps
1. Press the FUNC key.
FUNC
2. Use the scroll wheel to go to Power on Config
and press Enter.
3. Go to the PON Run setting using the scroll
wheel and press Modify[F1].
4. Use the F1 ~ F3 soft-keys to select the PON Run
setting.
PON Run
None, Output ON, SEQ0~SEQ9
5. Press Enter to save the settings.
6. The next time the unit is turned on the new
PON Run settings will be activated. This will be
displayed on the screen at startup.
Power on Run Settings
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PSB-1000 Series User Manual
Example
Modify PON Run setting
PON Run setting
92
OPERATION
Parameter
Settings
Local
Local control. Tracking is off.
S/Slave
Series tracking. Sets the unit as a
slave for series tracking.
P/Slave
Parallel tracking. Sets the unit as
slave for parallel tracking.
P2~P4/M
Parallel tracking. Sets the unit as a
master for the designated number of
parallel slave units.
Steps
1. Press the FUNC key.
FUNC
2. Use the scroll wheel to go to Power on Config
and press Enter.
3. Go to the Track setting using the scroll wheel
and press Modify[F1].
4. Use the F1 ~ F4 soft-keys to select the Track
setting.
*Press the F4 soft-key to cycle through the
P2~P4/M settings.
Track
Local, S/Slave, P/Slave, P2/M,
P3/M, P4/M.
5. Press Enter to save the settings.
Tracking Control
Tracking control is used to control the voltage and current of slave
units when using multiple PSB-1000 units in series or parallel.
When using multiple units in parallel or serial special control
ribbon cables are required. Please see 98 for details.
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PSB-1000 Series User Manual
Example
Select Track setting
Track setting
Parameter
Settings
High
Open switch (high signal) turns the
output on.
Low
Closed switch (low signal) turns the
output off.
Steps
1. Press the FUNC key.
FUNC
2. Use the scroll wheel to go to Power on Config
and press Enter.
3. Go to the Ext-Out setting using the scroll wheel
and press Modify[F1].
4. Use the F1 ~ F2 soft-keys to select the Ext-Out
setting.
External Control of Output (Ext-Out)
The output can be turned on or off externally using a switch. The
Analog Programming connector can be set to turn the output on
from a high or low signal. The voltage across pins 18 and 19 are
internally pulled to +5V with 10kΩ pull-up resistor. A short (closed
switch) produces a low signal. When EXT-Out = High, the output is
turned on when the pins 18 and 19 are open. When EXT-Out = Low,
the output is turned on when pins 18 and 19 are shorted. Please see
138 for details.
94
OPERATION
Ext-Out
High, Low.
5. Press Enter to save the settings.
Example
Modify Ext-Out setting
Ext-Out setting
Parameter
Settings
Enable
Turns the PSB-1000 off when OCP,
OVP, OTP or shutdown is tripped.
Disable
Turns the output off when OCP,
OVP, OTP or shutdown is tripped.
Steps
1. Press the FUNC key.
FUNC
2. Use the scroll wheel to go to Power on Config
and press Enter.
Breaker Control
The Breaker setting determines the behavior of the unit when the
one of the protection functions have been tripped; When Breaker is
set to Enable the PSB-1000 will shut down, and when Breaker is set
to Disable, the output will be turned off.
Applicable protection functions: OCP, OVP, OTP and Shutdown.
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PSB-1000 Series User Manual
3. Go to the Breaker setting using the scroll wheel
and press Modify[F1]. (On page 2/2)
4. Use the F1 ~ F2 soft-keys to select the Breaker
setting.
Breaker
Disable, Enable.
5. Press Enter to save the settings.
Example
Modify Breaker setting
Breaker setting
Parameter
Settings
Disable
Disables local sense on the unit.
Rear
Enables local sense on the rear panel
terminals.
Front
Enables local sense on the front
panel terminals.
Steps
1. Press the FUNC key.
FUNC
Sense Control
Sense control turns local sense on or off for the front or rear panel
terminals. Traditionally local sense is manually configured on the
terminals. On the PSB-1000, local sense is internal wired when
enabled.
96
OPERATION
2. Use the scroll wheel to go to Power on Config
and press Enter.
3. Go to the Sense setting using the scroll wheel
and press Modify[F1]. (On page 2/2)
4. Use the F1 ~ F3 soft-keys to select the Sense
setting.
Sense
Disable, Rear, Front.
5. Press Enter to save the settings.
Example
Modify Sense setting
Sense setting
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PSB-1000 Series User Manual
Parallel/Series Operation
This section describes the basic operations required to operate the
power supply in series or parallel. Operating the PSB-1000 in
parallel increases the total current output of the power supply units.
When used in series, the total output voltage of the power supplies
can be increased.
When the units are used in parallel or in series, a number of
precautions and limitations apply. Please read the following
sections before operating the power supplies in parallel or series.
Master-slave parallel overview → from page 99
Parallel connection → from page 102
Parallel operation → from page 106
Master-slave series overview→ from page 109
Series connection → from page 112
Series operation → from page 115
98
OPERATION
Background
When connecting the PSB-1000 power supplies
in parallel, up to 4 units can be used in parallel
and all units must be of the same model with
similar output settings.
To use the power supplies in parallel, units
must be used in a “master-slave” configuration.
In the master-slave configuration a “master”
power supply controls any other connected
“slave” power supplies. In order for the master
unit to control the slave units, the master unit
must use the Analog Programming connector
on the rear panel to control the slave units.
When using the Analog Programming
connector, the connector must be wired
correctly between the master and each of the
slave units. For the complete connector pin
assignment, see page 144, or alternatively, the
PSB-101, PSB-102 and the PSB-103 cables can be
used to connect a master to unit to 1, 2 or 3 slave
units, respectively.
Master-Slave Parallel Overview
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PSB-1000 Series User Manual
Master
Load
Ext-V
Ext-R
Slave
VMON
IMON
Slave
Slave
PSB-101, PSB-102 or PSB-103
Optional
Limitations
Display
Only the master unit will display the voltage
and current.
OVP/ OCP
Slave units follow the settings of the master
when OVP/OCP is tripped on the master
unit.
Remote monitoring
Voltage monitoring (VMON) and current
monitoring (IMON) are only supported on
the master unit.
The IMON current represents the total
current of the all the parallelized units.
100
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