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10.2.4 SS1 Direct Stop with Feedback to PLC with error exclusion "short
circuit" in the cabinet
The application circuit shows a drive control system with PLC and safety module ac-
cording to EN ISO 13849-1 PL d and Category 3 or IEC 61508 SIL 2. Safety control
equipment with one enable path and interconnection line is implemented instead of
safety control equipment with two enable paths.
Comply with the following conditions:
−
Safety control equipment and inverter have to be placed in the same cabinet.
−
Error exclusion in case of short circuit has to be ensured for wiring between safe-
ty control equipment and inverter (for example insulated conductor).
AGL-STOV0-01SV0-05
06/12
33
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