External control of the range – GW Instek PEL-3000 Series User Manual User Manual
Page 147

EXTERNAL CONTROL
145
Load On/Off Status
Description
Pin 13 (Load On Status) of the J1 connector is
used to monitor the load status (on or off).
Pin out
The Load On Status
pin is a photo-
coupled open-
collector output.
17
13
Photocoupler input: 30V max, 8mA, max.
External Control of the Range
Description
The range for the present operating mode can
be externally controlled when the current range
is set to high range.
The range is changed using pins 8, 9 (Range
Cont 1 &2) and 12 (A Com) of the J1 connector.
When externally controlling the range, the pin
input combination determines which range is
chosen.
Note: Press
Main
> Configure [F5] > Next
Menu [F4] > External [F3] and set the Control
setting to V, R or Riv to enable external control.
I Range
Pin 9
Pin 8
H
High
High
M
High
Low
L
Low
High