Siemens SINAMICS G120 Function Manual page 152

Commissioning
5.7 Setting extended functions
Checking the interconnection of the feedback signal input for the safety output
The interconnection of the feedback signal input with a "standard" function may lead to the
drive behaving in unexpected ways.
Preconditions
● You use the safety output of the inverter.
● You use one of the test modes 2 or 3, where the inverter evaluates the status of the
connected actuator via a digital input.
You must check as to whether this digital input is assigned a "standard" function.
Procedure
In order to prevent that the feedback signal input of the safety output unintentionally controls
the "standard" functions in the inverter, proceed as follows:
1. Select the inputs/outputs in the project navigator of STARTER.
2. Select the screen for the digital inputs.
3. Remove the interconnection of the digital input that you use as feedback signal input for
the safety output:
– SINAMICS G120 with CU250S-2 Control Unit: Digital input DI 6 (see diagram).
– SINAMICS G120D: Digital input DI 5.
4. If you use the CDS data set switchover, remove the interconnection of the feedback
signal input for all CDS.
Figure 5-28
You have now prevented that the feedback signal input of the safety output controls
"standard" functions in the inverter.
152
Removing the interconnection of the feedback signal input DI 6 for the CU250S-2
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 04/2014, FW V4.7, A5E34261271B AA