Pilz PNOZ s9 C 24VDC 3 n/o t 1 n/c t coated - Manual (Page 5)

PNOZ s9
Operating Manual PNOZ s9
21401-EN-08
5
Function description
} Delay-on de-energisation, not retriggerable
If the supply voltage at the input circuit is interrupted, the safety contacts will open once
the set release time has elapsed, even if the safety function is cancelled during the de-
lay time. The unit cannot be reactivated until the delay time has elapsed.
} Delay-on de-energisation, retriggerable
(only possible as a standalone application or with the PNOZsigma base unit!)
If the supply voltage at the input circuit is interrupted, the safety contacts will open once
the set release time has elapsed.
If the safety function is cancelled during the delay time (e.g. safety gate closed), the unit
will remain active.
} Pulse on switching on
The safety contacts close when supply voltage is applied, the feedback loop is closed
and finally the input circuit is closed. The safety contacts are reopened once the pulse
time has elapsed.
If the input circuit is opened for more than 10 ms during the pulse time, the safety con-
tacts will open immediately and the auxiliary contact will be closed.
} Delay-on energisation
The set delay time is started when supply voltage is applied, the feedback loop is
closed and finally the input circuit is closed.
If the input circuit and feedback loop are closed once the delay time has elapsed, the
safety contacts will close and the auxiliary contact will be opened.
If the input circuit is opened for more than 10 ms, the safety contacts will open immedi-
ately and the auxiliary contact will be closed.
with PNOZsigma base unit:
} Dual-channel operation via PNOZsigma connector
with other base units or without base unit:
} Single-channel operation: one input circuit affects the output relays
Installation
Install contact expansion module without base unit:
} Ensure that the plug terminator is inserted at the side of the unit.
Connect base unit and PNOZsigma contact expander module:
} Remove the plug terminator at the side of the base unit and at the contact expander
module
} Connect the base unit and the contact expansion module using the connector supplied,
before mounting the units to the DIN rail.
Control cabinet installation
} The safety relay 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 (35 mm).
} When installed vertically: Secure the unit by using a fixing element (e.g. retaining brack-
et or end angle).
} Push the unit upwards or downwards before lifting it from the DIN rail.