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Last change 10/2018 E-P | Subject to technical modifications
13.1 Electrical installation / wiring / terminal posts
Installation requirement
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The maximum admissible load of switching outputs as well as the total system capacity must
not be exceeded by the connected consumer.
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All inductive consumers (valves, motors, contactors, transformers) must be equipped with
suitable suppressors (RC-unit, varistor (VDR), diode etc.).
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High line disturbance levels of any external units (frequency converter, motors, inductive
furnaces etc.) existing next to the controller must be reduced by suitable measurement or
otherwise, respective external suppressors (mains filter) provided at the supply voltage input
of the controller.
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Transmitting (data) systems of any type, including mobile transmitting units must not be
operated next to the controller to avoid possible EMC influences.
Assembly direction
The below direction must be observed in view of PCB wiring:
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The clamps must be handled carefully and the wires clamped/inserted with minimum power
only.
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The connection clamps (without screws) are suited to take flexible wiring (without wire end
sleeve) up to 0.5 mm² (at sensor inputs) or flexible wiring (without wire end sleeve) 1.00 mm²
or 1.5 mm² rigid wire.
Using wire end sleeves is not admissible in accordance with
supplier information.
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The screw connection terminals (PE 1
– PE 6) can take the following wires:
> rigid wires
0.14
– 2.5 mm²
> flexible wires
0.14
– 1.5 mm² or 0.25 – 1.5 mm² (with wire end sleeves)
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Prior putting into the clamp, the wire must be insulated over a length of min. 5 mm. It is
recommended to turn the wire end somewhat or to apply tin coat.
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The respective VDE regulations must be observed in view of all assembly work.
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Work at electric equipment must be carried out by skilled experts only.
Installation of controller
Installation shall be in the below sequence:
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Fixing of controller: the controller must be wall mounted in a dry, well accessible and well
visible area.
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The sensors / initiators must be connected (flow record).
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The actors must be connected (e.g. pumps, valves).
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Subsequently, the controller must be connected to mains.
The correct connected voltage must be observed!
