Planning the electrical installation
45
Where control cables must cross power cables make sure they are arranged at an
angle as near to 90 degrees as possible. Do not run extra cables through the drive.
The cable trays must have good electrical bonding to each other and to the
grounding electrodes. Aluminium tray systems can be used to improve local
equalizing of potential.
A diagram of the cable routing is below.
Control cable ducts
min 500 mm (20”)
Control cables
min 200 mm (8”)
min 300 mm (12”)
Supply cable
Motor cable
Drive
Braking resistor cable
min 500 mm (20”)
Motor cable
90°
90°
Supply cable
90°
230 V24 V24 V 230 V
Lead 24 V and 230 V control
cables in separate ducts inside
the cabinet.
Not allowed unless the 24 V
cable is insulated for 230 V or
insulated with an insulation
sleeving for 230 V.
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