AKD-C Installation | 9 Electrical Installation
9.1 Important Notes
Only professional staff who are qualified in electrical engineering are allowed to install the
drive. Wires with color green with one or more yellow stripes must not be used other than for
protective earth (PE) wiring.
DANGER
High Voltage up to 900 V!
There is a danger of serious personal injury or death by electrical shock or
electrical arcing. Capacitors can still have dangerous voltages present up
to 7 minutes after switching off the supply power. Control and power con-
nections can still be live, even if the motor is not rotating.
Only install and wire the equipment when it is not live.
Make sure that the cabinet is safely disconnected (for instance, with a
lock-out and warning signs).
Never remove electrical connections to the drive while it is live.
Wait at least 7 minutes after disconnecting the drive from the main sup-
ply power before touching potentially live sections of the equipment
(e.g. contacts) or undoing any connections.
To be sure, measure the voltage in the DC bus link and wait until it has
fallen below 50 V.
Since the leakage current to PE is more than 3.5 mA, in compliance with IEC61800-5-1 the
PE connection must either be doubled or a connecting cable with a cross-section >10 mm²
must be used. Deviating measures according to regional standards might be possible.
Wrong DC Bus link voltage, unsuitable motor or wrong wiring will damage the system com-
ponents. Check the combination of drive and motor. Compare the rated voltage and current
of the units. Implement the wiring according to the connection diagrams: (
It is permissible to use the setup software to alter the settings of the device. Any other alter-
ations will invalidate the warranty.
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Kollmorgen | kdn.kollmorgen.com | February 2018
