GW Instek Tequipment PEL-3000 Owner's manual

DC Electronic Load
PEL-3000
PROGRAMMING MANUAL
VERSION: 1.11
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.

Table of Contents
1
Table of Contents
INTERFACE OVERVIEW ..................................................... 2
Front Panel Overview ............................. 3
Rear Panel Overview ..............................4
Interface Configuration .......................... 5
COMMNAND OVERVIEW ................................................ 16
Command Syntax ................................. 16
Command List ..................................... 21
Error Messages.................................... 90

PEL-3000 Programming Manual
2
INTERFACE OVERVIEW
This chapter describes basic configuration of
IEEE488.2 based remote control.
Front Panel Overview ........................................................ 3
Rear Panel Overview.......................................................... 4
Interface Configuration ..................................................... 5
Configure to USB Remote Interface....................................................................... 5
Configure GPIB Interface........................................................................................ 6
Configure RS232C..................................................................................................... 7
RS232C/USB Remote Control Function Check................................................... 8
Using Realterm to Establish a Remote Connection.............................................. 9
GPIB Function Check ............................................................................................ 13

INTERFACE OVERVIEW
3
Front Panel Overview
(PEL-3021/PEL-3041 shown)
I MON OUT TRIG OUT
1.5 - 150V
175W
0 - 35A
P0
P1
P4
P7
CAL.
P2
P5
P8
Lock
P3
P6
P9
Utility
Local
File
0
1
4
7
2
5
8
3
6
9
EnterClear
Shift
Preset
Load On/
Off
Main
Help
FUNC
Short
Air inlet LCD Display Power key
FUNC/File
Help/Utility
Short
Load On/Off
USB Port, Preset
and Shift keys
Number pad, Clear/
Lock and Enter keys
Main/Local
Scroll wheel
Function keys
Input
terminals
I MON OUT,
TRIG OUT

PEL-3000 Programming Manual
4
Rear Panel Overview
(PEL-3021 / PEL-3041 shown)
47 - 63 Hz
90 VA MAX.
AC
100 - 120 VAC
200 - 240 VAC
FRAME CONT
J 1
J 2
SER. NO. LB
RS232C
GPIB
WARNING
TO AVOID ELECTRIC SHOCK THE POWER CORD
DO NOT REMOVE COVERS.
NO OPERATOR SERVICEABLE COMPONENTS INSIDE.
PROTECTIVE GROUNDING CONDUCTOR MUST BE
REFER SERVICING TO QUALIFIED PERSONNEL.
CONNECTED TO GROUND.
Remote sense
inputs
Frame control ports,
J1, J2
RS232C port
USB port
USB device port
Exhaust fanGPIB Power socket
and switch
Rear panel
inputs

INTERFACE OVERVIEW
5
Interface Configuration
Configure to USB Remote Interface
USB
configuration
PC side
connector
Type A, host
PEL-3000 side
connector
Rear panel Type B, slave
Speed
2.0 (full speed)
USB Class
USB CDC AMC
Note
Before USB can be used for remote control, it is
necessary to install the PEL-3000 USB device
driver, located on the accompanying User Manual
CD.
Operation
1. Connect the USB cable to the rear panel USB B
port.
2. Press
Shift
+
Utility
Help
> Interface[F3] and set
the Interface setting to USB.

PEL-3000 Programming Manual
6
Configure GPIB Interface
To use GPIB, the optional GPIB port must be installed. See the user
manual for details.
Operation
1. Ensure the PEL-3000 is off before proceeding.
2. Connect a GPIB cable from a GPIB controller to
the GPIB port on the PEL-3000.
3. Turn the PEL-3000 on.
4. Press
Shift
+
Utility
Help
> Interface[F3] and set
the Interface setting to GPIB.
5. Set the GPIB address.
GPIB address
0~30
GPIB constraints
 Maximum 15 devices altogether, 20m cable length,
2m between each device
 Unique address assigned to each device
 At least 2/3 of the devices turned On
 No loop or parallel connection
Pin Assignment
112
1324
Pin
Signal
Pin
Signal
1~4
Data I/O 1~4
13~16
Data I/O 5~8
5
EOI
17
REN
6
DAV
18
Ground (DAV)
7
NRFD
19
Ground (NRFD)
8
NDAC
20
Ground (NDAC)
9
IFC
21
Ground (IFC)
10
SRQ
22
Ground (SRQ)

INTERFACE OVERVIEW
7
11
ATN
23
Ground (ATN)
12
SHIELD Ground
24
Single GND
Configure RS232C
RS232C
Configuration
Connector
DB-9, Male
Baud Rate
2400, 4800, 9600, 19200, 38400
Stop Bit
1, 2
Parity
None, Odd, Even
Operation
1. Connect an RS232C cable from the PC to the
rear panel RS232 port.
2. Press
Shift
+
Utility
Help
> Interface[F3] and
set the Interface setting to RS232.
3. Set the Baud Rate, Stop Bit and Parity settings.
Pin Assignment
1 2 3 4 5
6 7 8 9
2: RxD (Receive data)
3: TxD (Transmit data)
5: GND
4, 6 ~ 9: No connection
PC Connection
Use a null modem connection as shown in the
diagram below.
PEL-3000 PC
RxDPin2 RxD Pin2
GNDPin5 GND Pin5
TxD Pin3
TxDPin3

PEL-3000 Programming Manual
8
RS232C/USB Remote Control Function Check
Functionality
check
Invoke a terminal application such as
RealTerm. For RS232C, set the COM port, baud
rate, stop bit, data bit and parity accordingly.
To check the COM settings, see the Device
Manager in the PC. For WinXP; Control panel
→ System → Hardware tab.
Run this query command via the terminal after
the instrument has been configured for
RS232/USB remote control (page 5).
*idn?
This should return the Manufacturer, Model
number, Serial number, and Firmware version
in the following format.
 GW-INSTEK,PEL-3000, XXXXXXXXXXXX,
V.X.X.X.X
Manufacturer: GW-INSTEK
Model number : PEL-3000
Serial number : XXXXXXXXXXXX
Firmware version : V.X.X.X