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IndraDrive Mi Drive Systems with KCU02, KSM02,
KMS02/03, KMV03, KNK03, KLC03
Peak Power when Decelerating
S1, S3
Characteristics apply to a PWM frequency of 4 kHz
①
M
, controlled supply 3 AC 400 V
max
②
M
, uncontrolled supply 3 AC 480 V
max
③
M
, uncontrolled supply 3 AC 440 V
max
④
M
, uncontrolled supply 3 AC 400 V
max
B
Corner speed reduced to 80%
C
Corner speed reduced to 90%
Fig. 7-9:
Example of how long lines reduce the corner speeds
Power distribution
Supply
Power supply (controlled supply voltage 3 AC 400 V)
RKH
Hybrid cable
Motor
KSM or KMS and Motor
Fig. 7-10:
Example of power distribution with cable length of 100 m and corner
speed reduced to 90%
The peak power when decelerating is independent of the supply unit used
and the mains voltage. But the peak power is reduced as of a cable length of
approx. 80 m, due to the voltage limitation taking effect in KSM/KMS.
The critical case is when all motors decelerate at the same time with peak
torque out of maximum speed (e.g., in the case of E‑Stop).
Notes on project planning
R911335703_Edition 04 Bosch Rexroth AG
225/407
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