PNOZ e1vp
Operating Manual PNOZ e1vp
21236-EN-06
10
Operating modes
} Single-channel operation: Input wiring in accordance with EN 60204, no redundancy in
the input circuit; earth faults in the input circuit and start circuit are detected.
} Dual-channel operation: Redundant input circuit; earth faults in the input circuit and
start circuit are detected, with or without detection of shorts between the pushbutton
contacts.
} Automatic start: Unit is active once the input circuit has been closed.
} Monitored start: Unit is not active until the start button has been operated and then re-
leased.
} The start-up test prevents automatic restarting after a power failure and subsequent re-
turn of voltage. The unit checks whether the input circuit is opened and then closed
when supply voltage is applied.
} Increase in the number of available contacts by connecting contact expander modules
or external contactors/relays.
Selecting sensors
When selecting sensors, you must comply with the technical details of the input circuits on
the PNOZelog units.
Please note:
} Sensors with mechanical contacts can be used in operating modes with or without de-
tection of shorts across contacts, provided you comply with the technical details
provided by the manufacturer. It is not always possible to use sensors with semicon-
ductor outputs when operating with detection of shorts across contacts.
} Sensors with pulsed semiconductor outputs are only permitted if the PNOZelog is oper-
ated without detection of shorts across contacts.
Installation
CAUTION!
Electrostatic discharge can damage components on the safety system!
Ensure against discharge before touching the safety system, e.g. by touch-
ing an earthed, conductive surface or by wearing an earthed armband.
} 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 (35 mm).
} When installed vertically: Secure the unit by using a fixing element (e.g. retaining
bracket or end angle).
NOTICE
If you are connecting several units logically, please note the guidelines in
the section entitled Logic connection between several units [ 16].
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