Operation
Operating Manual PMCprotego S12(C)
1002528EN03
81
SAFE OPERATION
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Safe operation after at least one safety function has been activated
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Transition to STO: Internal error
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Transition to SS1 due to
– Error
– Violation of limit values
– Demand upon safety function SS1
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Transition to NORMAL OPERATION: No safety function activated
SS1
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SS1 is activated
– After violation of the limit values
– After an error
– After a demand upon safety function SS1
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Transition to STO: After activation of SS1 (drive is brought to a standstill with a defined
braking ramp)
STO
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There is no power to the motor after execution of safety function STO
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Transition to CONFIG: Demand upon the Configurator
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Transition to NORMAL OPERATION due to
– Reset of safety card (see "Recommissioning")
– Prior POWER ON
8.2
Testing the safe pulse disabler
The safety card meets the requirements of EN IEC 61508 up to SIL 3 and EN ISO 138491
up to PL e.
To achieve category SIL 3 or PL e, the operator must ensure that the function of the safe
pulse disabler is tested periodically, after 8 hours at the latest, by triggering safety functions
SS1 or STO:
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By restarting after safety functions SS1 or STO have been triggered as a condition of
operation
or
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By restarting after safety function SS1 has been triggered by the operator
To test the safe pulse disabler, proceed as follows:
1. Switch input "SS1 Activate" or "SS1 SIL3/Reset" to 0 V
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The safety card performs the safety function SS1 (Safe Stop 1) and switches to a
"STOP" condition. The "STO" LED flashes.
2. Switch input "SS1 Activate" or "SS1 SIL3/Reset" to 24 V.
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The safety card switches to a "STARTUP" condition. The device and the safe pulse dis
abler are tested. The "RUN" LED flashes.
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The safety card switches to a "RUN" condition. The "RUN" LED is lit continuously.
