4 Connecting the controller
© 2021 Interflex Datensysteme GmbH IF-4072 Controller 11
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Observe the notes under Cable lengths and cable types [}5].
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When connecting external devices, take into account the switching capacity, the cable length and the
line resistance. Use several cable cores to switch remote devices.
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Connect the cable shields as shown in the diagram to maintain the required EMC values.
4.2 Connecting the power supply
NOTICE
Malfunction due to improper electrical installation
Improper electrical installation can lead to malfunctions in operation and equipment failures. Therefore,
please note the following:
u Use shielded cables Cable lengths and cable types [}5]
u Ground the shields on the devices and cables
u Provide power to actuators (e.g., door openers) separately from terminals/controllers
u Use mains filter
These measures have been implemented in the distributors from Interflex. For further
information, please get in touch with your Interflex contact.
Power can be supplied to the controller via:
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18 to 24 V AC/DC power supply unit
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PoE device IEE 802.3at of power class 4 (up to 25.4 W)
1. Set the jumper according to the selected power supply type:
2. Connect the controller to the PE mains ground at the supply terminal strip (blue cable)
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