ACS510 User’s Manual
223
Technical Data
For CE compliant installations and installations where EMC emissions must be
minimized, see "Effective Motor Cable Screens" below.
Drive’s Motor Connection Terminals
The drive’s motor and input power terminals have the same specifications. See
"Drive’s Power Connection Terminals" above.
Motor Cable Requirements for CE Compliance
The requirements in this section apply for CE compliance.
Minimum Requirement (CE )
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).
Recommendation for Conductor Layout
The following figure compares conductor layout features in motor cables.
Effective Motor Cable Screens
The general rule for cable screen effectiveness is: the better and tighter the cable’s
screen, the lower the radiated emission level. The following figure shows an
Insulation Jacket
Copper Wire Screen
Helix of Copper Tape
Cable Core
Inner Insulation
Symmetrical shielded cable: three phase
conductors and a concentric or otherwise
symmetrically constructed PE conductor, and a
shield
Recommended
(CE )
PE
Conductor
and Shield
A separate PE conductor is required if the
conductivity of the cable shield is < 50% of the
conductivity of the phase conductor.
Not allowed for motor cables
(CE )
Shield
PE
PE
Allowed for motor cables
with phase
conductor cross section up to 10 mm
2
.
A four-conductor system: three phase
conductors and a protective conductor, without a
shield.
Allowed
(CE )
Shield
Shield
Supplied from China by: Guangzhou Tofee Electro Mechanical Equipment Co., Ltd
Email: info@tofee.com.cn
