S1, S3
Characteristics apply to a PWM frequency of 4 kHz
①
M
max
, controlled supply 3 AC 400 V
②
M
max
, uncontrolled supply 3 AC 480 V
③
M
max
, uncontrolled supply 3 AC 440 V
④
M
max
, uncontrolled supply 3 AC 400 V
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 Cor‐
ner Speed Reduced to 90%
Peak Power when Decelerating
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).
DOK-INDRV*-KCU02+KSM02-PR03-EN-P
Bosch Rexroth AG
203/337
Rexroth IndraDrive Mi Drive Systems with KCU02 KSM02, KMS02/03, KMV03, KNK03
Notes on project planning
LSA Control S.L. www.lsa-control.com [email protected] (+34) 960 62 43 01
