Siemens CU240B-2 Function Manual

4.4.3.4 SIMATIC I/O modules
The diagrams only show the interconnection between the SIMATIC I/O modules and an
inverter shown as example. You can find additional information about the I/O modules in the
Internet
● S7-300 (
https://support.industry.siemens.com/cs/ww/en/view/19026151)
● S7-1500 (https://support.industry.siemens.com/cs/ww/en/view/86140384)
● ET 200S (https://support.industry.siemens.com/cs/ww/en/view/12490437)
● ET 200SP (https://support.industry.siemens.com/cs/ww/en/view/84133942)
● ET 200pro (https://support.industry.siemens.com/cs/ww/en/view/22098524)
Components in the same control cabinet
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Figure 4-39 Connecting the PP switching module SM326
A control cabinet that has been designed and wired correctly does not contain any damaged
wiring or cross circuits.
As a consequence, for PP-switching fail-safe digital outputs, in an electrical cabinet you may
connect the inverter to the I/O module through a single channel cable connection. At the
inverter, you must connect both terminals of the fail-safe digital input with one another.
You must use a two-channel cable connection when connecting PM-switching fail-safe digital
outputs to a fail-safe digital input.
Installing
4.4 Controlling via a fail-safe digital input
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD 91

Siemens CU240B-2 Specifications

General

Brand	Siemens
Model	CU240B-2
Category	Inverter
Language	English