ABB ACS880-87LC-4000A/4021A-7, Hardware Manual

Page: 61 / 144

Planning the electrical installation 61
Routing the cables
Route the generator cable away from other cable routes. It is recommended that the
generator cable, grid cable and control cables are installed on separate trays. Avoid long
parallel runs of generator cables with other cables in order to decrease electromagnetic
interference caused by the rapid changes in the converter output voltage.
Where control cables must cross power cables make sure they are arranged at an angle
as near to 90° as possible. Do not run extra cables through the converter.
The cable trays must have good electrical bonding to each other and to the grounding
electrodes. You can use aluminum tray systems to improve local equalizing of potential.
A diagram of the cable routing is below.

Control cable ducts
90°
min. 500 mm (20 in)
Generator cable
Grid cable
Control cables
min. 200 mm (8 in)
min. 300 mm (12 in)
Generator cable
Power cable
Converter
230/120 V 24 V 24 V 230/120 V
Lead 24 V and 230/120 V control cables
in separate ducts into the inside of the
cabinet. Not allowed unless the 24 V cable is insulated
for 230 V (120 V) or insulated with an
insulation sleeving for 230 V (120 V).