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Elektrotechnische Anlagen GmbH
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Connection
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All connections should be as short and low-impedance as possible.
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For the observance of the EMC-guideline (in accordance to actual standards like VDE
0160 and EN 50178) screened wires have to be used.
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Connect the mains supply wires at the terminals L1, L2, L3 (at the mains choke) of the
power feed/feedback unit. Only three phase connection is allowed.
•
A defined phase sequence (clockwise rotation field) must be observed at the main cir-
cuit connection of the power unit. The power feed/feedback unit is equipped with a
phase-sequence control unit. In case of an incorrect rotation field an error message is
displayed via LED as follows: "rotation field failure" or "phase failure". In this case
two phases, connected to the power unit, have to be exchanged.
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Connect the protective earth of the supply lines to the earthing screw of the power
feed/feedback unit.
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The wires for the DC-bus coupling between controller and power feed/feedback unit
have to be connected at the DC-terminals. It is absolutely necessary to observe the cor-
rect polarity.
Stop!
An Interchanging of + (PLUS) and – (MINUS) may damage controller and the power feed /
feedback unit.
Danger!
It is in no case allowed to pre-connect not current compensated direct inductances!