Beckhoff EP31 Series User Manual

Mounting and cabling
EP31xx50 Version: 2.4
3.10.2 M12 analog current inputs, one single-ended input per socket
Analog input, 0 to 20mA, or 4 to 20mA
Fig.34: M12 analog current inputs, one single-ended input per socket
GND connections
If several sensors are connected to a box whose GND connections are not electrically isolated,
GND must be connected to GNDp.
3.10.3 Status LEDs at the M12 connections
Fig.35: Status LEDs at the M12 connections
Connection LED Display Meaning
M12 socket no. 1-4 R
left
off No data transfer to the A/D converter
green Data transfer to A/D converter
E
right
off Function OK
red Error: Broken wire or measured value outside the measuring
range
Correct function is indicated if the green RUN LED is on and the red Error LED is off.

Beckhoff EP31 Series Specifications

General

Brand	Beckhoff
Model	EP31 Series
Category	Control Unit
Language	English