Beckhoff EP1957-0022 - Page 27

Operation
EP1957-0022 and EP1957-2222 27Version: 2.0.0
M12 connection
(numbered in red)
Contact Chan-
nel
Signal Alternative 1:
Parameter
PowerMode A
Alternative 2:
Parameter
PowerMode B
1 1 1 Pulse output 1 24V
DC
sensor power supply
0V
DC
sensor power supply
2 Input 1 Input 1 Input 1
3 2 Pulse output 2 0V
DC
sensor power supply
24V
DC
sensor power supply
4 Input 2 Input 2 Input 2
5 - not connected not connected not connected
2 1 3 Pulse output 3 24V
DC
sensor power supply
0V
DC
sensor power supply
2 Input 3 Input 3 Input 3
3 4 Pulse output 4 0V
DC
sensor power supply
24V
DC
sensor power supply
4 Input 4 Input 4 Input 4
5 - not connected not connected not connected
3 1 5 Pulse output 5 24V
DC
sensor power supply
0V
DC
sensor power supply
2 Input 5 Input 5 Input 5
3 6 Pulse output 6 0V
DC
sensor power supply
24V
DC
sensor power supply
4 Input 6 Input 6 Input 6
5 - not connected not connected not connected
4 1 7 Pulse output 7 24V
DC
sensor power supply
0V
DC
sensor power supply
2 Input 7 Input 7 Input 7
3 8 Pulse output 8 0V
DC
sensor power supply
24V
DC
sensor power supply
4 Input 8 Input 8 Input 8
5 - not connected not connected not connected
Sensor power supply
For the sensor supply, please ensure that the maximum current consumption does not exceed
250mA and the parameter Diag TestPulse active is set to FALSE.
CAUTION
Configurable inputs
The inputs 1 to 8 can be occupied as you want with normally closed contacts or normally open contacts.
The corresponding evaluation takes place in the safety controller.
Alternatively, a safe sensor can be supplied with 24V
DC
, instead of the clock outputs for potential-free
contacts. The polarity of pins 1 and 3 can be parameterized. Detection of cross-circuits or external feeds
must take place via the connected safe sensor.
Functional earth
Pin 5 of the M12 connections is not connected to the functional ground, since an SELV/PELV power
supply unit is specified for the EtherCAT Box.