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Notes on project planning
Power supply to KSM/KMS (KCU)
Available power at drive line
Continuous power
Bosch Rexroth AG R911335703_Edition 04
A drive line for power supply in the IndraDrive Mi system is designed as a
bus (L+, L-) and consists of:
●
X54 connector at KCU
●
RKH hybrid cable
●
X103.1 and X103.2 connectors at KSM/KMS
●
RHS0014 terminal connector at KSM/KMS
Comply with UL rating I
In the case of equal load, the greatest load of the hybrid cable is
on the first cable segment.
In the drive line, place powerful KSM/KMS as near as possible to
the output of the drive connection box KCU.
Observe the maximum allowed bypass current I
segment (see
If necessary, install more KCU devices.
Available power P
KCU_strang
P
Available power at drive line
KCU_strang
U
Output voltage, depending on supply unit
out
I
Output current; see
out_max
Fig. 7-6:
Available power at KCU drive line
With a small number of KSM/KMS and a low degree of power consumption in
a drive line (operation at partial load), the measurable value I
output of KCU is above the value which would result from the calculation of
the power P
of KSM/KMS and U
LN
currents. The influence of these currents is insignificant in operation under
rated conditions.
Comply with continuous power
The sum of the electric powers of all KSM/KMS of a drive line
should not exceed the calculated value P
drive connection box.
P
Nominal power KSM/KMS
LN_nenn
P
Available power at drive line
KCU_strang
Fig. 7-7:
Checking the continuous power
Instead of P
LN_nenn
continuous power of the KSM/KMS.
Taking the average speed and simultaneity factor into account,
the sum of the installed rated motor powers therefore can be
significantly higher with servo operation.
IndraDrive Mi Drive Systems with KCU02, KSM02,
KMS02/03, KMV03, KNK03, KLC03
Bypass
technical data of KSM
or
technical data of
at a drive line:
technical data of KCU
of KCU. The deviation is due to reactive
out
, it is allowed to use the actually occurring
in each
Bypass
KMS).
at the
strang
of the KCU
KCU_strang
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