Checking The Assignment Of The Digital Inputs - Siemens SINAMICS G120D Original Instructions Manual

Setting functions
8.9 Safe Torque Off (STO) safety function
8.9.3.9

Checking the assignment of the digital inputs

Checking the connection of digital inputs
The simultaneous connection of digital inputs with a safety function and a "standard" function
may lead to the drive behaving in unexpected ways.
If you control the safety functions in the inverter using digital inputs, you must check whether
these digital inputs are connected to a "standard" function.
Figure 8-53
Procedure
In order to prevent the safety-related inputs of the safety functions unintentionally controlling
"standard" functions in the inverter, proceed as follows:
1. Select the inputs/outputs in STARTER in the project navigator.
2. Select the screen for the digital inputs.
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Example: Assignment of digital inputs DI 4 and DI 5 with STO
Converter with control units CU250D-2
Operating Instructions, 04/2014, FW V4.7, A5E34261542B AA