ABB ACH550-UH User Manual page 315

ACH550-UH User's Manual
Motor cable shielding
Motor cables require shielding using conduit, armored cable or shielded cable.
• Conduit – When using conduit:
– Bridge joints with a ground conductor bonded to the conduit on each side of
– Bond conduit run to the drive enclosure.
– Use a separate conduit run for motor cables (also separate input power and
– Use a separate conduit run for each drive.
• Armored Cable – When using armored cable:
– Use six-conductor (3 phases and 3 grounds), type MC continuous corrugated
– Armored motor cable can share a cable tray with input power cables, but not
• Shielded Cable – For shielded cable details, see
& C-Tick compliance
Grounding
See
Ground connections
For CE compliant installations and installations where EMC emissions must be
minimized, see
Drive's motor connection terminals
The drive's motor and input power terminals have the same specifications. See
Drive's power connection terminals
Motor cable requirements for CE & C-Tick compliance
The requirements in this section apply for CE or C-Tick compliance.
Minimum requirement (CE & C-Tick)
The motor cable must be a symmetrical three conductor cable with a concentric PE
conductor or a four conductor cable with a concentric shield, however, a symmetrical
constructed PE conductor is always recommended. The following figure shows the
minimum requirement for the motor cable screen (for example, MCMK, NK Cables).
Insulation Jacket
* Input filters designed for ACH550 cannot be used in an isolated, or high impedance earthed
industrial distribution network.
the joint.
control cables).
aluminum armor cable with symmetrical grounds.
with control cables.
below.
in
Effective motor cable screens
Copper Wire Screen
Input power connections
on page 1-312.
above.
Helix of Copper Tape
Motor cable requirements for CE
above.
Inner Insulation
Cable Core
Technical data
1-311