External Control - Ametek Amrel PLA Series Operation Manual

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
EXT_CTRL Voltage
0 V
5 V
10 V
0 V
5 V
10 V
0 V
5 V
10 V
Setup Diagram
FIGURE 3.2 EXTERNAL PROGRAMMING SETUP
M470039-01 REV-F
), the External Programming port can support up to 10 V
AC
Current Range Range Current Rating
L
L
L
M
M
M
H
H
H
Current
Shunt
Main Current Value
6 A
6 A
6 A
30 A
30 A
30 A
60 A
60 A
60 A
+ INPUT
+S
eLOAD
-S
- -
S S
-INPUT
- -
INP INP
UT UT
10V ≥ AC Signal ≥ -1V
Function
Generator
≥ Ext
V
AC AC
0 A
3 A
6 A
0 A
15 A
30 A
0 A
30 A
60 A
EXT PRG
EXT GND
AC + DC
≥ -1
V .
AC
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