GW Instek AEL-5000 Series User manual

AC/DC High Power Electronic Load
AEL-5000 Series
USER MANUAL
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
SAFETY INSTRUCTIONS ...................................................4
GETTING STARTED...........................................................8
The most complete measurement function ................ 9
AEL-5000 Series Introduction .................................. 11
Accessories.............................................................. 16
Operating Mode Description ................................... 18
Operating Area ........................................................ 22
Appearance.............................................................. 27
FUNCTION DESCRIPTION .............................................. 39
Function keys description ........................................ 40
Store or Recall functions ......................................... 56
Sequence Functions ................................................. 57
Wave Function description....................................... 61
Test Function description ........................................ 71
Entry key description ............................................. 102
CONNECTION .............................................................. 104
Rear Panel ............................................................. 105
Connecting the I-monitor to an oscilloscope ......... 109
Master/Slave Description ...................................... 110
2 operating modes for Master/Slave ...................... 112
REMOTE operating ................................................ 117
INSTALLATION ............................................................. 120
Check line voltage.................................................. 121
Grounding requirements ....................................... 122
Power up ............................................................... 123
Connection to the load Input Terminal .................. 124
Interface Card ........................................................ 125

AEL-5000 User Manual
2
RS232 interface option........................................... 126
GPIB interface option ............................................ 127
USB interface option.............................................. 127
LAN interface option ............................................. 127
I/O connection ...................................................... 128
Load wire inductance ............................................. 129
Parallel and three-phase control ............................ 133
REMOTE CONTROL ...................................................... 134
Interface Configuration .......................................... 135
Communication Interface programming command
list ......................................................................... 137
Command Syntax ................................................... 148
Command List ....................................................... 150
PRESET Commands ............................................... 152
Limit Commands ................................................... 165
STATE commands .................................................. 167
System Commands ................................................ 173
Measure Commands .............................................. 176
APPLICATION ............................................................... 178
Local sense connections ........................................ 179
Remote sense connections .................................... 181
Constant Current mode and LIN mode application 183
Constant Resistance mode application .................. 185
Constant Voltage mode application ....................... 187
Constant Power mode application ......................... 189
Battery discharge test application .......................... 191
Current protection component test ........................ 194
AC rectified load simulation................................... 197
Parallel operation .................................................. 198
Inrush Current ....................................................... 200
Power Supply OCP testing ..................................... 203
Power Supply OPP testing ..................................... 205
SHORT testing....................................................... 207

Table of Contents
3
BW Setting............................................................. 209
Special waveform applications ............................... 210
APPENDIX .................................................................... 211
Replacing the Fuse................................................. 212
AEL-5000 Default Settings ..................................... 214
AEL-5000 Dimensions............................................ 218
AEL-5000 series Specifications .............................. 222
Declaration of Conformity...................................... 244
GPIB programming Example.................................. 245
AEL-5000 Series USB Instruction ........................... 249
AEL-5000 series Auto, Sequence function provide
EDIT, ENTER, EXIT, TEST and STORE 5 keys
operation ............................................................... 251
AEL-5000 Series LAN Instruction ........................... 255

AEL-5000 User Manual
4
SAFETY INSTRUCTIONS
This chapter contains important safety instructions that you must
follow during operation and 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
instrument.
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 instrument or to
other properties.
DANGER High Voltage
Attention Refer to the Manual
Earth (ground) Terminal
Frame or Chassis Terminal
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.

SAFETY INSTRUCTIONS
5
Safety Guidelines
General
Guideline
CAUTION
Do not place any heavy object on the
instrument. Note: Only 2 units can be stacked
vertically.
Avoid severe impact or rough handling that
leads to damaging the instrument.
Do not discharge static electricity to the
instrument.
Use only crimped wires, not bare wires, for the
terminals.
Do not block the cooling fan opening.
Do not disassemble the instrument unless you
are qualified.
The equipment is not for measurements
performed for CAT II, III and IV.
(Measurement categories) EN 61010-1:2010 specifies the
measurement categories and their requirements as follows.
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.
Do NOT position the equipment so that it is difficult to disconnect
the appliance inlet or the power plug.
If the equipment is used in a manner not specified by the
manufacturer, the protection provided by the equipment may be
impaired.

AEL-5000 User Manual
6
Power Supply
WARNING
AC Input voltage range: 100Vac~240Vac ± 10%
Frequency: 47-63Hz
Power for every model
Model
Power
AEL-5002-350-18.75,
AEL-5003-350-28
AEL-5004-350-37.5
AEL-5002-425-18.75
AEL-5003-425-28
AEL-5004-425-37.5
AEL-5003-480-18.75
AEL-5004-480-28
150VA
AEL-5006-350-56
AEL-5008-350-75
AEL-5006-425-56
AEL-5008-425-75
270VA
AEL-5012-350-112.5
AEL-5012-425-112.5
390VA
AEL-5015-350-112.5
AEL-5015-425-112.5
510VA
AEL-5019-350-112.5
AEL-5019-425-112.5
630VA
AEL-5023-350-112.5
AEL-5023-425-112.5
750VA
To avoid electrical shock connect the protective
grounding conductor of the AC power cord to
an earth ground.
To avoid electric shock, the power cord
protective grounding conductor must be
connected to ground. No operator serviceable
components inside. Do not remove covers.
Refer servicing to qualified personnel.

SAFETY INSTRUCTIONS
7
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 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)
Temperature: 0°C to 40°C
Humidity: 0 to 85% RH
Altitude: <2000m
Overvoltage category II
(Pollution Degree) EN 61010-1:2010 specifies the pollution degrees
and their requirements as follows. The instrument 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: -20°C to 70°C
Humidity: <90% RH
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.

AEL-5000 User Manual
8
GETTING STARTED
AEL-5000 Series is suitable for the step, square and sine wave of the
AC Power device test. Especially for the uninterruptible power
supply UPS, Inverter, fuses, circuit breakers, power regulator AVR,
Battery, AC/ DC power supply/ components ... and so on,
absolutely is the best test solution in the market.
AEL-5000 LOAD
Operating mode
AEL-5000Series Operating Modes
daoLCDdaoLCA
Sine Wave
Voltage Source
Constant Current
Mode
Linear Constant
Current Mode
Constant Resistance
Mode
Linear Constant
Current Mode
Constant Resistance
Mode
Constant Power
Mode
Constant Voltage
Mode
Rectifier Load
Non-linear Mode
Rectifier Load
Non-linear Mode
Constant Current
Mode
Linear Constant
Current Mode
Constant Resistance
Mode
Constant Power
Mode
Constant Voltage
Mode
Rectifier Load
Non-linear Mode
+Constant Resistance
Rectifier Load
Non-linear Mode
+Constant Resistance
PWM, Step, Square Wave
Voltage Source

GETTING STARTED
9
The most complete measurement function
AEL-5000 Series AC/ DC electronic load has built-in 16-bit
precision measurement circuit, providing accurate measurement
values, measuring items include voltage rms (Vrms), current rms
(Arms), watts (Watt), volt ampere (VA), crest factor (CF), power
factor (PF), voltage total harmonic distortion (VTHD), voltage
harmonics (VH), current total harmonic distortion (ITHD), current
Harmonics (IH), peak current (Ipeak), maximum ampere (Amax),
minimum ampere (Amin), maximum voltage (Vmax), and
minimum voltage (Vmin).
In addition to these measurement functions, it also provides time
measurement, such as UPS back up time, fuses and circuit breakers’
trip or blow time and Off-line UPS transfer time.
Note*1：ms= milli - siemens = 1/kΩ
Note*2：The operating temperature range is 0 ~ 40° C，accuracy of
this specification is 25 ° C ± 5°C
AEL-5000 test
mode
Fuse / Breaker Trip /
Non-trip Time Test
AC Power Source Short
Circuit / OPP / OCP Test
DC Power Source Short
Circuit / OPP / OCP Test
AEL-5000 Load Various Test Modes
UPS Efficiency Test
PV Inverter Efficiency Test
UPS Transfer Time Test
UPS Back-up Time Test
daoLCDdaoLCA
Battery Discharge Time Test
Fuse / Breaker Trip /
Non-trip Time Test
Fuse / Breaker Trip /
Non-trip Time Test
AC Power Source Short
Circuit / OPP / OCP Test
Turbo Mode
（Current / Power 2 T imes）
Fuse / Breaker Trip /
Non-trip Time Test
Battery Discharg e
Capacity Test
AC Power Source Short
Circuit / OPP / OCP Test
Turbo Mode
（Current / Power 2 Times）

AEL-5000 User Manual
10
AEL-5000 Series Introduction................................... 11
Model Line Up ................................................................................ 11
Main Features .................................................................................. 12
Protection features.......................................................................... 14
Accessories.............................................................. 16
AEL-5002-xxx-18.75/AEL-5003-xxx-28/
AEL-5004-xxx-37.5 ........................................................................ 16
AEL-5006-xxx-56/AEL-5008-xxx-78/AEL-5012-xxx-
112.5/AEL-5015-xxx-112.5/AEL-5019-xxx-112.5
/AEL-5023-xxx/112.5................................................................... 16
Operating Mode Description ................................... 18
AC load mode.................................................................................. 18
DC load mode ................................................................................. 20
Operating Area ........................................................ 22
Appearance.............................................................. 27
Front Panel....................................................................................... 27
LCD Display .................................................................................... 29

GETTING STARTED
11
AEL-5000 Series Introduction
Model Line Up
When Turbo is off
Model
Voltage (Volt)
Current
Power
AEL-5002-350-18.75
50~350Vrms/500Vdc
18.75 Arms/ 56.25Apeak
1875 W
AEL-5003-350-28
50~350Vrms/500Vdc
28 Arms / 84Apeak
2800W
AEL-5004-350-37.5
50~350Vrms/500Vdc
37.5 Arms / 112.5Apeak
3750 W
AEL-5006-350-56
50~350Vrms/500Vdc
56.0Arms/168Aprak
5600W
AEL-5008-350-75
50~350Vrms/500Vdc
75.0Arms/225Aprak
7500W
AEL-5012-350-112.5
50~350Vrms/500Vdc
112.5.0Arms/337.5Aprak
11250W
AEL-5015-350-112.5
50~350Vrms/500Vdc
112.5.0Arms/337.5Aprak
15000W
AEL-5019-350-112.5
50~350Vrms/500Vdc
112.5.0Arms/337.5Aprak
18750W
AEL-5023-350-112.5
50~350Vrms/500Vdc
112.5.0Arms/337.5Aprak
22500W
AEL-5002-425-18.75
50~425Vrms/600Vdc
18.75 Arms/ 56.25Apeak
1875 W
AEL-5003-425-28
50~425Vrms/600Vdc
28 Arms / 84Apeak
2800W
AEL-5004-425-37.5
50~425Vrms/600Vdc
37.5 Arms / 112.5Apeak
3750 W
AEL-5006-425-56
50~425Vrms/600Vdc
56.0Arms/168Aprak
5600W
AEL-5008-425-75
50~425Vrms/600Vdc
75.0Arms/225Aprak
7500W
AEL-5012-425-112.5
50~425Vrms/600Vdc
112.5.0Arms/337.5Aprak
11250W
AEL-5015-425-112.5
50~425Vrms/600Vdc
112.5.0Arms/337.5Aprak
15000W
AEL-5019-425-112.5
50~425Vrms/600Vdc
112.5.0Arms/337.5Aprak
18750W
AEL-5023-425-112.5
50~425Vrms/600Vdc
112.5.0Arms/337.5Aprak
22500W
AEL-5003-480-18.75
50~480Vrms/700Vdc
18.75 Arms / 56.25Apeak
2800W
AEL-5004-480-28
50~480Vrms/700Vdc
28 Arms / 84Apeak
3750 W
When Turbo is on
Model
Voltage (Volt)
Current
Power
AEL-5002-350-18.75
50~350Vrms/500Vdc
37.5Arms/56.25Apeak
3750W
AEL-5003-350-28
50~350Vrms/500Vdc
56Arms/84Apeak
5600W
AEL-5004-350-37.5
50~350Vrms/500Vdc
75.0Arms/112.5Apeak
7500W
AEL-5006-350-56
50~350Vrms/500Vdc
112.0Arms/168Aprak
11200W
AEL-5008-350-75
50~350Vrms/500Vdc
150.0Arms/225Aprak
15000W
AEL-5012-350-112.5
50~350Vrms/500Vdc
225.0Arms/337.5Aprak
22500W
AEL-5015-350-112.5
50~350Vrms/500Vdc
225.0Arms/337.5Aprak
30000W
AEL-5019-350-112.5
50~350Vrms/500Vdc
225.0Arms/337.5Aprak
37500W

AEL-5000 User Manual
12
AEL-5023-350-112.5
50~350Vrms/500Vdc
225.0Arms/337.5Aprak
45000W
AEL-5002-425-18.75
50~425Vrms/600Vdc
37.5Arms/56.25Apeak
3750W
AEL-5003-425-28
50~425Vrms/600Vdc
56Arms/84Apeak
5600W
AEL-5004-425-37.5
50~425Vrms/600Vdc
75.0Arms/112.5Apeak
7500W
AEL-5006-425-56
50~425Vrms/600Vdc
112.0Arms/168Aprak
11200W
AEL-5008-425-75
50~425Vrms/600Vdc
150.0Arms/225Aprak
15000W
AEL-5012-425-112.5
50~425Vrms/600Vdc
225.0Arms/337.5Aprak
22500W
AEL-5015-425-112.5
50~425Vrms/600Vdc
225.0Arms/337.5Aprak
30000W
AEL-5019-425-112.5
50~425Vrms/600Vdc
225.0Arms/337.5Aprak
37500W
AEL-5023-425-112.5
50~425Vrms/600Vdc
225.0Arms/337.5Aprak
45000W
AEL-5003-480-18.75
50~480Vrms/700Vdc
37.5Arms/56.25Apeak
5600W
AEL-5004-480-28
50~480Vrms/700Vdc
56Arms/84Apeak
7500W
Main Features
Performance
Four meters can be displayed V/A/W Meter,
display the Voltage (Vrms, Vpeak, Vmax.,
Vmin), Current (Irms, I Peak, Imax. Imin.)
Watt, Voltampere (VA), Frequency, Crest
Factor, Power Factor, Total Harmonic
Distortion of Voltage (VTHD), Voltage
Harmonic (VH), Total Harmonic Distortion of
Current (ITHD), Current Harmonic (IH)
Remote Control via a choice of Computer
interfaces.
Support on-load boot; at first set Load ON to
support on-load boot, inverter or
uninterruptible power supply is turned on
directly with the set load current, used to
verify whether the starter is stable when the
Inverter is connected.
Supports the loading and unloading angle
control; the loading and unloading angle
control, the full range of 0-359 degrees can be
set to verify whether the Inverter output
voltage transient response is stable when the
actual electrical plugging and unplugging, and
whether Overshoot/Undershoot is within the

GETTING STARTED
13
allowable range.
Support positive half-cycle or negative half-
cycle loading; used to verify whether the
inverter output voltage remains stable when
the actual appliance has only positive half-
cycle or negative half-cycle load current.
Supports SCR/TRIAC current phase
modulation waveforms, 90 degree Trailing
edge and Leading Edge.
Supports the Inrush Current of the power
supply at startup and the Surge Current test
when the load is suddenly plugged in (Hot
Plug-in).
Features
AC / DC load with CC, Linear CC, CR, CV, CP
and Rectifier Load mode
Frequency Range : DC, 40~440Hz
Crest factor adjustable range : 1.4~5.0
Power factor (PF) adjustable range: 0~1 lead or
(~1~0)lag
Built-in test modes include UPS Efficiency, PV
Inverter Efficiency, UPS Back-up time, Battery
Discharge time, UPS transfer time, Fuse/
Breaker Trip / Non-Trip, short circuit
simulation, OCP, OPP, etc.
Turbo mode, which can withstand up to twice
the current (225A) and power (45KW)
electronic load in a short time, the most
suitable for Fuse / Breaker and AC power
short circuit, OCP, OPP test.
Up to three parallel up to 22500W and three-
phase △or Y load synchronization control.
Maximum power of single-phase can up to
180KW, 3-phase total power up to 540KW 3-
phase △or Y connection parallel connection
can be controlled by external voltage for CC,
Linear CC, CR, CP, CV mode (Option)
Measure the fuse and circuit breaker trip or

AEL-5000 User Manual
14
blow time
Measure the UPS OFF- line transfer time
(Transfer time)
Perform short circuit simulation(can set the
short circuit time), OCP, OPP test
Over voltage warning, over current, over
power, over temperature protection.
150 set Store/Recall memory.
Interface
Optional interface: GPIB, RS232, USB, LAN.
Protection features
The protection features of the AEL-5000 series electronic load
modules are as follows:
Overvoltage
protection
The Electronic Load input will turn OFF if the
overvoltage circuit is tripped. The message OVP
will be displayed on the LCD. When the OVP
fault has been removed the load can be set to sink
power again. While the unit will attempt to
protect itself given an OVP state it is strongly
advised to guard against any potential OVP fault
state by using external protection and the
correctly rated electronic load.
The Overvoltage protection circuit is set at a
predetermined voltage and cannot be adjusted.
The OVP level is 105% of the AEL-5000 Series
nominal voltage rating.
Caution
Never apply an AC voltage to the input of the
AEL-5000 Series Load. Do not apply a DC voltage
that is higher than AEL-5000 Series Load rating. If
this advice is ignored it is likely that damage will
be caused to the electronic load module. This
damage will not be covered by the warranty.
Over current
protection (OCP)
The OCP protection will engage if the current
being taken by the load reaches 105% of the load
module’s maximum current. The message OCP

GETTING STARTED
15
will be displayed on the front panel and the unit
will switch to its LOAD OFF state. Once the
source of the over current has been removed the
load can be switched on again.
Over power
protection (OPP)
The AEL-5000 Series Electronic Load monitors the
power dissipation level. The input to the load is
automatically switched to LOAD OFF if the power
dissipation is greater than 105% of the rated
power input. If an over power condition occurs
the display will show OPP
Over temperature
protection
The load internal temperature at the heat sink is
monitored. If the temperature reaches
approximately 100°C the OTP message will be
displayed and the unit will automatically switch
to the LOAD OFF state. If an OTP error occurs
please check the ambient temperature is between
0 to 40°C. Also ensure that the front and rear air
vents of the mainframe are not obstructed. The air
flow is taken from the front of the mainframe and
exhausted from the rear. Therefore a suitable gap
needs to be left at the rear of the mainframe. A
minimum of 15cm is recommended. After a
suitable cooling period the load can be switched.

AEL-5000 User Manual
16
Accessories
AEL-5002-xxx-18.75/AEL-5003-xxx-28/AEL-5004-xxx-37.5
Standard Accessories
Description
PCs
AEL-5000 series operation manual
It can be downloaded from
GW instek website.
1
Terminal PTV1-12; PIN TRML 6
6
SLS10B RED; PLUG CONN 20A
RED
1
SLS10B BLK; PLUG CONN 20A
BLK
1
RNB 22-6S RING TRML,#4
2
HD-DSUB
15pin MALE to MALE 150cm
1
AEL-5006-xxx-56/AEL-5008-xxx-78/AEL-5012-xxx-112.5/AEL-
5015-xxx-112.5/AEL-5019-xxx-112.5/AEL-5023-xxx/112.5
Standard Accessories
Description
PCs
AEL-5000 series operation manual
It can be downloaded from
GW instek website.
Round terminal PVL-1-4
2
Round terminal RNYBS8-4
2
Terminal PTV1-12
6
HD-DSUB
15pin MALE to MALE
150cm
1
Optional Accessories
Description
PCs
GPIB+RS232 interface
PEL-030
1
RS232 interface
PEL-023
1
GPIB interface
PEL-022
1

GETTING STARTED
17
USB interface + USB driver(The
driver can be downloaded from
GW instek website)
PEL-025
1
LAN interface + LAN driver (The
driver can be downloaded from
GW instek website)
PEL-024
1
GPIB cable
GTL-250 GPIB Cable,0.6m
1
GPIB cable
GTL-248 GPIB Cable,2m
1
USB cable
GTL-246 USB Cable,1.2m
1
AEL-5000, AEL-5006, AEL-5008,
AEL-5012 and AEL-5015 handle
PEL-028
1
AEL-5002, AEL-5003 and AEL-5004
handle
PEL-029
1
AEL-5000, AEL-5000 GPIB and RS-
232 interface
PEL-030
1

AEL-5000 User Manual
18
Operating Mode Description
AC load mode
CC Mode
With the operating mode of Constant Current, the
AEL-5000 Series electronic load will sink a current
in accordance with the programmed value
regardless of the input voltage
Current
Setting
Linear C.C. Mode
During Linear C.C. mode, the load current input
into AEL-5000 Series High Power Electronic Load
depends on the current setting regardless of the
input voltage, e.g., the current setting remains
unchanged. Please refer to Fig.1-8. The load input
current signal will follow input voltage signal that
is useful for step wave-form and square wave-
form device.
Current
Setting
CR Mode
At Constant Resistance mode, the AEL-5000 Series
Electronic Load will sink a current linearly
proportional to the load input voltage in
accordance with the programmed resistance
setting