Motor Cable Length For Parallel Operation Of Motors; Motor Cable Cross-Section; Interconnection Of The Motor - KEB COMBIVERT F6 Series Instructions For Use Manual

cONNecTION OF THe POWer UNIT

4.2.5.5 Motor cable length for parallel operation of motors

The resulting motor cable length for parallel operation of motors, or parallel installation
with multiple cables arises from the following formula:
resulting motor cable length = ∑single line length x √Number of motor lines

4.2.5.6 Motor cable cross-section

The motor cable cross-section is dependent
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4.2.5.7 Interconnection of the motor

NOTICE
NOTICE
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on the characteristic of the output current (e.g. harmonic content).
on the real effective value of the motor current.
on the cable length.
on the type of the used line.
on the ambient conditions such as bundling and temperature.
Incorrect behaviour of the motor!
► The connection instructions of the motor manufacturer are always
generally valid !
Protect motor against voltage peaks !
► Drive controllers switch at the output with high du/dt. Voltage peaks
that endanger the insulation system at the motor can occur espe-
cially in case of long motor cables (>15 m). A motor choke, a dv/
dt-filter or sine-wave filter can be used to protect the motor with
regard to the operating mode.