Application: Connecting A Load Per Digital Output, Pp Switching - Siemens SIMATIC S7-1500 Manual

5.5

Application: Connecting a load per digital output, PP switching

You connect the load between the P-switch DQ-P
This circuit achieves SIL3/Cat.4/PLe.
The figure below shows an example of the pin assignment of the fail-safe digital output
module F-DQ 8x24VDC/2A PPM with connection of one load per digital output, PP
switching.
To protect the F-module, always install an external fuse with the following properties for the
load circuit: Circuit-breaker 24 V DC/16 A, tripping characteristic type B.
①
Backplane bus interface
②
Microcontroller 1
③
P1 switch for channel groups 0 to 3
Image 5-4 Wiring diagram for 1 relay to 1 F-DQ of the digital output module F-DQ 8x24VDC/2A PPM, PP switching
Digital output module F-DQ 8x24VDC/2A PPM (6ES7526-2BF00-0AB0)
Manual, 01/2016, A5E03858037-AA
5.5 Application: Connecting a load per digital output, PP switching
WARNING
and chassis ground in this application.
n
④
Microcontroller 2
⑤
P1 switch for channel groups 4 to 7
⑥
Reverse polarity protection
Applications of the F-I/O module
39