3. Electrical Installation
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3
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Power Input
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There are no phase sequence requirements for three-phase cable connections.
Ɣ
Specification and installation of all external power cables must comply with local
safety regulations and relevant IEC standards.
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the cabinet main grounding terminal.
Conductive surface
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DC Bus Terminals
WARNING
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DC bus terminals, labeled (+) and (-), are terminals that carry a residual
voltage for a period after the drive has been switched off.
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braking unit for use with an AC drive of 90 kW and above,
DO NOT
reverse the poles (+) and (–)
.
Ɣ
Use a cable not exceeding10 m to connect DC bus terminals to external
MDBUN braking unit. Use twisted pair wires or close pair wires for this
connection.
Ɣ
Fire risk! Do not connect braking resistor directly to DC bus.
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