Siemens SINAMICS G220 - Page 698

Di󹪜erent modes are available to test a fail-safe digital input (F-DI):
• Self-test with internal test signals: p10041=0
The converter generates internal test signals for the input circuit of the F-DI. The test signals
and the test cycle are prede󹪝ned.
• Self-test using internally speci󹪝ed dark pulses: p10041=1
The switchable supply voltageVS1 at the terminal block X130 generates dark pulses, to
diagnose the control circuit, for example.
The self-test detects a short-circuit to ground and to 24V.
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Figure14-243 Dark pulses through switchable supply voltageVS1
P10018 determines the length of the dark pulse. The cycle of the dark pulses has a 󹪝xed value
of 5seconds.
The debounce time prevents an unwanted response of the converter to the self-test: p10017
> p10018 + 2ms.
Functions
14.12Safety Integrated
SINAMICS G220 converter
696 Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB