AKD-N Installation | 8 Electrical Installation
8.1 Important Notes
DANGER
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. Capacitors can still have dangerous voltages present up to 7
minutes after switching off the supply power. Always measure the voltage
in the DC bus link at connector X14 at AKD-C and wait until the voltage is
below 60 V before handling components. Control and power connections
can still be live, even if the motor is not rotating.
The built-in LED does
not
indicate the real voltage level.
CAUTION
Since the leakage current to PE is more than 3.5 mA, in compliance with
IEC 61800-5-1 the PE connection must either be doubled or a connecting
cable with a cross-section >10 mm² must be used. There is a danger of
electrical shock with possible personal injury. Deviating measures accord-
ing to regional standards might be possible.
Wrong DC Bus link 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 diagrams:
It is permissible to use the setup software to alter the settings of the drive. Any other alter-
ations will invalidate the warranty.
8.2 Guide to Electrical Installation
Install the drive electrical system as follows:
1. Select cables (
p. 25.)in accordance with the planned system topology (
2. Install grounding (PE) and ground the drive.
Ground the mounting plate, motor housing and CNC-GND of the control system.
3. Wire the drive:
The connectors are close to each other on the drive. To ensure simple handling, observe the
connector mounting sequence: X2 - X1 - X4 - X5 - X3 - X6
o
Connect the hybrid power cable between AKD-C X20 or X21 and AKD-N X1, max.
length 40 m.
o
Connect the hybrid power cables between the AKD-N drives X1/X2, max. length 25 m.
o
Dual line connection:
Connect the motor cable to X4, max. length 5 m.
Connect the feedback device to X5 , max. length 5 m.
o
Single line connection:
Connect the hybrid motor cable to X4, max. length 5 m.
4. Check the wiring against the planned system topology diagrams (
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Kollmorgen | December 2014
