AKD Installation | 8 Electrical Installation
8.1 Important Notes
Never remove electrical connections to the drive while it is live. There is a
danger of electrical arcing with damage to contacts and serious personal
injury. Wait at least seven minutes after disconnecting the drive from the
main supply power before touching potentially live sections of the equip-
ment (e.g. contacts) or undoing any connections.
Capacitors can still have dangerous voltages present up to 7 minutes
after switching off the supply power. To be sure, measure the voltage in
the DC bus link and wait until it has fallen below 40 V.
Control and power connections can still be live, even if the motor is not
rotating.
Wrong mains voltage, unsuitable motor or wrong wiring will damage the drive. Check the
combination of drive and motor. Compare the rated voltage and current of the units. Imple-
ment the wiring according to the connection diagram: ➜ p. 77.
Make sure that the maximum permissible rated voltage at the terminals L1, L2, L3 or +DC, –
DC is not exceeded by more than 10% even in the most unfavorable circumstances (see IEC
60204-1).
Excessively high external fusing will endanger cables and devices. The fusing of the AC
supply input and 24 V supply must be installed by the user, best values ➜ p. 37. Hints for
use of Residual-current circuit breakers (RCD) ➜ p. 58.
The drive status must be monitored by the PLC to acknowledge critical situations. Wire the
FAULT contact in series into the emergency stop circuit of the installation. The emergency
stop circuit must operate the supply contactor.
It is permissible to use the setup software to alter the settings of the drive. Any other alter-
ations will invalidate the warranty.
70 Kollmorgen™ | May 2013
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