PNOZ X4
Operating Manual PNOZ X4
19894-EN-07
9
} Monitored start: Unit is active once the input circuit is closed and once the start circuit is
closed after the waiting period has elapsed (see Technical details [ 15]).
} Increase in the number of available contacts by connecting contact expander modules
or external contactors/relays.
Timing diagram
Legend
} Power: Supply voltage
} Start: Start circuit
} Input: Input circuit
} Output safe: Safety contacts
} Output aux: Auxiliary contact
} [1]: Automatic start
} [2]: Manual start
} [3]: Monitored start
} a: Input circuit closes before start circuit
} b: Start circuit closes before input circuit
} t
1
: Switch-on delay
} t
2
: Delay-on de-energisation
} t
3
: Recovery time
} t
4
: Waiting period with a monitored start
Installation
} The unit should be installed in a control cabinet with a protection type of at least IP54.
} Use the notch on the rear of the unit to attach it to a DIN rail.
} Ensure the unit is mounted securely on a vertical DIN rail (35 mm) by using a fixing ele-
ment (e.g. retaining bracket or an end angle).
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