KEB COMBIVERT F6 Instructions For Use Manual - Attention
4.2.5.4 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:
resultingmotorcablelength=∑singlelinelengthx√Number of motor lines
4.2.5.5 Motor cable cross-section
The cable cross-section of the motor cable depends on the real effective value of the
motor current, the line length, the type of the used cable (observe the manufacturer's
specifications)aswellastheambientconditionssuchasbundlingandtemperature.
Also observe the electrical regulations applicable for the operation site.
4.2.5.6 Interconnection of the motor
ATTENTION
Incorrect behavior of the motor!
► The connecting-up instructions of the motor manufacturer are al-
ways generally valid !
ATTENTION
Protect motor against voltage peaks !
► Drive converters switch at the output with high dv/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-filterorsine-wavefiltercanbeusedtoprotectthemotorwith
regard to the operating mode.
56
cONNecTION OF THe POWer UNIT