Ametek Amrel PLA Series - External Control

M470039-01 REV-F Page 64
EXTERNAL CONTROL
Basic Functionality:
The external control function allows the eLOAD’s maximum range (L/M/H) voltage, current, power and resistance to be
scaled from 0 to 10 Volts. The external voltage signal will control the eLOAD to operate at the corresponding
current/voltage/resistance/power. Please see the table below for further details.
Note: AMREL specifications guarantee a 0 - 10 V External Programming Voltage. If an application requires a positive
and negative voltage swing (V
AC
), the External Programming port can support up to 10 V
AC
≥ Ext V
AC
≥ -1 V
AC
.
EXT_CTRL Voltage
Current Range
Range Current Rating
Main Current Value
0 V
L
6 A
0 A
5 V
L
6 A
3 A
10 V
L
6 A
6 A
0 V
M
30 A
0 A
5 V
M
30 A
15 A
10 V
M
30 A
30 A
0 V
H
60 A
0 A
5 V
H
60 A
30 A
10 V
H
60 A
60 A
Setup Diagram
-
INP
UT
-
S
-
INP
UT
-
S
Current
Shunt
Function
Generator
+ INPUT
-INPUT
+S
-S
EXT GND
eLOAD
EXT PRG
DMM
DUT
DMM
10V ≥ AC Signal ≥ -1V
FIGURE 3.2 EXTERNAL PROGRAMMING SETUP
AC + DC