PNOZ s2
Operating Manual PNOZ s2
21394-EN-11
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Block diagram/terminal configuration
Fig.: Centre: Front view with cover, right: Front view without cover
*Safe separation from non-marked area in accordance with EN 60947-1,
6 kV, basic insulation between all safety contacts.
Function description
} Single-channel operation: No redundancy in the input circuit, earth faults in the start and
input circuit are detected.
} Automatic start: Unit is active once the input circuit has been closed.
} Manual start Unit is active once the input circuit and the start circuit are closed.
} Monitored start with falling edge: Unit is active once
– the input circuit is closed and then the start circuit is closed and opened again.
– the start circuit is closed and then opened again once the input circuit is closed.
} Monitored start with rising edge: Unit is active once the input circuit is closed and
once the start circuit is closed after the waiting period has elapsed (seetechnical details).
} Increase in the number of available instantaneous safety contacts by connecting contact
expander modules or external contactors/relays;
A connector can be used to connect 1 PNOZsigma contact expansion module.
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