Matrix PEL-8000 Series User manual

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I
PEL-8000 Series Electronic Load
User Manual
MATRIX TECHNOLOGY INC.
Version number: V2.0

I
Contents
CHAPTER I INTRODUCTION....................................................................................................................................1
CHAPTER II TECHNICAL SPECIFICATIONS............................................................................................................. 2
2.1 THE MAIN TECHNICAL SPECIFICATIONS.................................................................................................................2
3.1 POST................................................................................................................................................................4
3.2 IF THE LOAD CAN NOT BE STARTED......................................................................................................................4
3.3 FRONT AND REAR PANEL INTRODUCTION............................................................................................................. 5
3.4 KEYBOARD INSTRUCTIONS................................................................................................................................... 6
3.5 MENU OPERATION.............................................................................................................................................. 6
CHAPTER IV PANEL OPERATION............................................................................................................................9
4.1 BASIC OPERATION MODE.....................................................................................................................................9
4.1.1 Constant current mode of operation (CC)........................................................................................... 9
4.1.1.1 Standard constant current mode...................................................................................................9
4.1.1.2 Load unload constant current mode.............................................................................................9
4.1.1.3 Soft-start constant current mode................................................................................................10
4.1.1.4 constant current transfer voltage mode..................................................................................... 11
4.1.2 Constant resistance operation mode (CR)......................................................................................... 11
4.1.2.1 Standard fixed resistance mode.................................................................................................. 12
4.1.2.2 Loading and unloading fixed resistance mode.......................................................................... 12
4.1.2.3 fixed resistance switch voltage mode..........................................................................................13
4.1.3 Constant voltage operation mode (CV)............................................................................................. 13
4.1.3.1 Standard constant voltage mode................................................................................................ 13
4.1.3.2 load unload constant voltage mode........................................................................................... 14
4.1.3.3 Soft start constant voltage mode................................................................................................ 14
4.1.4 Constant power operation mode (CP)............................................................................................... 15
4.1.4.1 Standard fixed power mode.........................................................................................................15
4.1.4.2 Load / Unload Constant power mode........................................................................................ 15
4.2 DYNAMIC TEST OPERATION................................................................................................................................16
4.2.1 Continuous mode (CONTINUOUS).....................................................................................................16
4.2.2 Pulse mode (PULSE)............................................................................................................................. 16
4.2.3 Trigger Mode (TRIGGER)......................................................................................................................16
4.2.4 dynamic test parameter settings.........................................................................................................17
4.2.5 Waveform control.................................................................................................................................17
4.2.5.1 square wave................................................................................................................................... 17
4.2.5.2 Triangle wave.................................................................................................................................17
4.2.5.3 trapezoidal wave........................................................................................................................... 18
4.2.6 trigger control.......................................................................................................................................18
4.2.7 LIST function..........................................................................................................................................18
4.2.7.1. Edit LIST list................................................................................................................................... 18
4.2.7.2 Perform LIST function................................................................................................................... 19
4.2.8 automatic test function........................................................................................................................ 19
4.2.8.1 Edit automatic test list...................................................................................................................19
4.2.8.2 Set automatic trigger mode.........................................................................................................20
4.2.8.3 Perform automatic test function..................................................................................................20

II
4.3 INPUT CONTROL............................................................................................................................................... 21
4.3.1 Short circuit operation (SHORT)..........................................................................................................21
4.3.2 Input switch operation......................................................................................................................... 21
4.4 ELECTRONIC LOAD OPERATING RANGE...............................................................................................................21
4.5 PROTECTION FUNCTION.................................................................................................................................... 22
4.5.1 Over-voltage protection (OVP)...........................................................................................................22
4.5.2 Overcurrent protection (OCP)............................................................................................................. 22
4.5.3 Over Power Protection (OPP)..............................................................................................................22
4.5.4 Reverse input polarity.......................................................................................................................... 22
4.5.5 Over Temperature Protection (OTP)...................................................................................................23
4.6 REMOTE TEST FUNCTION................................................................................................................................... 23
4.7 BATTERY DISCHARGE TEST OPERATION............................................................................................................... 23
4.8 COMMUNICATION PROTOCOL..................................................................................................................... 24
4.8.1 Overview................................................................................................................................................24
4.8.2 Select the communication baud rate..................................................................................................25
4.8.3 Data........................................................................................................................................................25
4.8.4 Function Code.......................................................................................................................................25
4.8.5 error checking....................................................................................................................................... 25
4.8.6 Complete command frame parsing....................................................................................................25
4.8.7 Coil and register address assignment.................................................................................................28
4.8.8 Command Register CMD Definition................................................................................................... 30
4.8.9 Common operation function description...........................................................................................31

1
Chapter One Introduction
The PEL-8000 series is a new generation of DC electronic load. It adopts high performance chip, high speed and
high precision design. It can provide the resolution of 0.1mV and 0.01mA (the basic accuracy is 0.05% and the basic
current rising speed is 2.5A /us) Novel, rigorous scientific production process, compared to similar products, more
cost-effective. Widely used in production lines (cell phone charger, cell phone batteries, electric car batteries,
switching power supply, linear power), research institutions, automotive electronics, aerospace, shipbuilding, solar
cells, fuel cells and other industries.
Main features
Constant current, constant resistance, constant voltage, constant power, constant current + constant voltage,
constant resistance + constant voltage, six kinds of high-speed action mode;
Overcurrent, overvoltage, over power, overheating, reverse polarity protection
High brightness, vacuum, VFD screen, double row, four simultaneous display;
According to temperature change, stepless servo, intelligent fan system;
LOAD ON time setting, LOAD ON voltage setting;
Battery test and short circuit function;
Provide dynamic testing, rising and falling slope setting;
Provide arbitrary waveform editing capabilities (LIST function);
Support automatic test function
Support external trigger input, output;
Provide external current waveform monitoring terminal;
Support remote voltage compensation, multiple data storage;
POST, standard instrument rack design;
Support GPIB, RS232, RS485, USB communication.

2
Chapter II Technical Specifications
2.1 The main technical specifications
Model
PEL-8150
PEL-8300
Input Rating
Power
150W
300W
Current
0-30A
0-60A
Voltage
0-150V
CC mode
Range
0-3A
0-30A
0-6A
0-60A
Resolution
0.1mA
1mA
0.1mA
1mA
Accuracy
0.03%-0.05%FS
CV mode
Range
0.1-19.999V
0.1-150V
0.1-19.999V
0.1-150V
Resolution
1mV
10mV
1mV
10mV
Accuracy
0.03%+0.02%FS
CR mode
Range
0.03Ω-10kΩ
0.03Ω-5kΩ
0.03Ω-10kΩ
0.03Ω-5kΩ
Resolution
16 bits
Accuracy
0.1%+0.1%FS
0.1%+0.1%FS
CW mode
Range
0-150W
0-150W
0-300W
0-300W
Resolution
1mW
10mW
1mW
10mW
Accuracy
0.1%+0.1%FS
0.1%+0.1%FS
V Measureme
nt
Voltage
0-19.999V
0-150V
0-19.999V
0-150V
Resolution
1mV
10mV
1mV
10mV
Accuracy
0.015%+
0.03%FS
0.015%+
0.03%FS
0.015%+
0.03%FS
0.015%+
0.03%FS
C Measureme
nt
Current
0-3A
0-30A
0-6A
0-60A
Resolution
0.01mA
0.1mA
0.01mA
0.1mA
Accuracy
0.03%+
0.05%FS
0.03%+
0.08%FS
0.03%+
0.05%FS
0.03%+
0.08%FS
W
Measurement
Watt
100W
150W
100W
300W
Resolution
1mW
10mW
1mW
10mW
Accuracy
0.1%+0.1%FS
0.1%+0.1%FS
Battery Measurement Battery Input：0.1-150V
Max. measurement capacity=999AH; Resolution=0.1mA; Test time=1S-16HS
Dynamic measurement function: dynamic programming:0-25KHz;2.5A/uS; T1&T2:60uS-
999S; Accuracy:±15%, offset+10%FS

3
Current soft start time: 1mS;2mS;5mS;10mS;20mS;50mS;100mS;200mS;500mS;1000mS; Accuracy: ± 15%,
offset+10%FS
Short Circuti
Current(CC)
≈3A
≈33A
≈6.6A
≈66A
Valtge(CV)
0V
Resistance（CR)
≈55mΩ
≈25mΩ
Temperature
Operating
0-40℃
Storage
（-10℃~70℃）
Dimension
W*H*D(mm）
214*108*365
Weight
Kg
3.5
3.5

4
Chapter III Quick Start
3.1 POST
First of all, the user needs to connect the power cord correctly and power on. The following are the specific
steps of self-test.
3.2 If the load can not be started
Use the following method to help solve the problems you may encounter when opening the load.
1) Check the power cord is connected,Should first check the power cord is connected, the load has been powered,
the power switch is turned on.
2) Check load power supply voltage setting,The working voltage of the load is 110V or 220V two ways, check your
load voltage settings and supply voltage to match.
3) Check the load fuse is burned out, if the fuse burned, please use the fuse specifications in the table below to be
replaced.
4) Fuse replacement method
Use a flat-blade screwdriver to open the small plastic cover under the power input socket on the rear panel of the
load to see the fuses. Use fuses of the above specifications. (Fuse position as shown below) Figure
3.1 fuse position
step
VFD display
details
When the electronic load
power is turned on
SYSTEM SELF TEST
Vx.x
System self-test, and display the product model and software
version number
After about 1S
EPROM ERROR
If the EEPROM is damaged or there is a loss of the last load in the
EEPROM, the VFD displays a message (about 2S)
ERROR CAL.DATA
If calibration data stored in the EEPROM is lost, the VFD displays
a message (about 2S) as follows
If you have an error
message, then about 2
seconds later
xxxxxxxV xxxxxxxA
xxxxxxxW xxxxxxxX
VFD shows the actual input voltage, current, power, set
parameter value and current status.
Model
Fuse Specifications (110VAC)
Fuse Specifications (220VAC)
PEL-8150
T0.5A 250V
T0.3A 250V
PEL-8300
T0.5A 250V
T0.3A 250V
Fuse

5
3.3 front and rear panel introduction
PEL-8000 series electronic load front panel as shown below
Figure 3.2 Front panel
1The top half of the panel is the black VFD display and knob
2The lower part of the panel from left to right are 0-9 numeric keys and ESC exit key, function key, up and down
move key and Enter key, input and output terminals.
PEL-8000 series electronic load rear panel as shown below
Remote measurement terminal, trigger input and output interface
Multi-function communication interface, GPIB, RS232, RS425, USB transfer

6
3.4 keyboard instructions
～
0 ~ 9 for the number of input keys
Cancel button, you can exit in any working state
CC
Select constant current mode, set current output value
CV
Select the constant voltage mode, set the voltage output value
CP
Select the constant power mode, set the power output value
CR
Select the constant resistance mode, set the resistance output value
Shift composite key
Load on / off
Move the key and select menu item in menu operation
Move the key to select the menu item in the menu operation
Enter
3.5 menu operation
Press Shift + Menu key to enter into menu function. At this time VFD displays selectable menus. Use up / down
operation keys ▽ and △ or knob to turn VFD screen, the following functions will appear in sequence. Press the
Enter key at this time and you will be taken to the function selection where the cursor is. You can use the up / down
keys ▽ and △ or the knob to turn the VFD screen. Press the Enter key to enter the next submenu. Press Esc to
return to the previous menu.
MENU
CONFIG
INPUT RECALL
Set the input state at load power-on as the state at the
last shutdown or OFF state
ON
When the load is turned on, it will be restored to the
state before shutdown.
OFF
When the load is turned on, the input status is OFF
and the working mode is CC.
KEY SOUND SET
Keyboard sound settings
ON
Keyboard sound
OFF
Keyboard no sound
CONNECT MODE
Connection mode
MAXTIDLEXING
Multiple units
SEPARATE
Single
BAUDRATE SET
Set the communication baud rate
2400
9600
14400
28800
57600
115200

7
COMM.PARITY
Set communication verification method
NONE
No calibration
EVEN
Even parity
ODD
Odd parity
ADDRESS SET
Set the load communication address
1~200
KEY LOCK SET
Set the keyboard to unlock the password (null or 0
means no password)
EXIT
SYSTEM SET
MAX CURRENT SET
Set the software current limit, if the current limit is
greater than 1/10 of the maximum current, the current
is high range, otherwise low range (such as 120A
machine, 12A following low range)
MAX VOLTAGE SET
Set the voltage limit, if the voltage limit is greater than
20V, the voltage is high range, or low range
MAX POWER SET
Set the power cap
TERMINAL SEL
Input terminal selection
FRONT
Select front panel terminal input
BACK
Select the rear panel terminal input
EXIT
LIST
LOAD LIST
Select LIST file, 1 ~ 8
EDIT LIST
Edit LIST file
MINIMUM TIME
Editing the minimum time fineness (0.02 ~ 1310.7mS)
LIST MODE
LIST output mode
CONTINOUS
Continuous output
END HOLD
The end of the output holds the last output level
END RESET
End of output to maintain no-load output
STEP LENGTH
Total steps (1 ~ 200)
STEP n
1 ~ total step
CURRENT
Set the current
TIME
duration
EXIT
AUTO
TEST
LOAD AUTO TEST
Select automatic test file 1 ~ 8
EDIT AUTO TEST
Edit automatic test files
STEP LENGTH
Set the total step size
STEP n
WORK MODE
LOAD OFF MODE
No-load mode
CC MODE
Constant current mode
CV MODE
Constant voltage mode
CP MODE
Constant power mode
CR MODE
Constant resistance mode
SHORT MODE
Short circuit mode
TEST MODE
Conformity test mode