Regularly Testing The Safety Functions; Overview; Testing Safety Inputs - Siemens SINAMICS G120 Function Manual

6.2

Regularly testing the safety functions

6.2.1

Overview

Overview
You must initiate the following function tests as a minimum once per year in order to
maintain the assured failure probability of the safety functions:
● The inverter must test its safety input if you are using a safety input.
● The inverter must test its safety functions:
● The inverter must test its safety output if you are using a safety output.
6.2.2

Testing safety inputs

Testing sensors and safety inputs
The inverter tests its safety inputs and the connected sensors with a signal change at the
inputs. We recommend that you test the safety inputs together with the forced dormant error
detection (test stop).
Procedure
To test the safety inputs, proceed as follows:
1. Actuate the relevant sensor.
2. Check the following:
You have checked the safety inputs.
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 04/2014, FW V4.7, A5E34261271B AA
→ Testing safety inputs (Page 161)
→ Testing the basic functions (Page 162)
→ Testing the extended functions (Page 163)
→ Testing a safety output (Page 165)
– The expected safety function is active.
– The inverter signals a fault.
6.2 Regularly testing the safety functions
Operation
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