Looping through the control volt‐
age
Property damage in case of error from line
cross section being too small!
NOTICE
Observe the current carrying capacity of the connection points for control
voltage supply at the components used.
You can only loop through the control voltage between the components, if the
sum of current consumptions ΣI
N3
of the individual components is smaller
than 40 A (in accordance with UL: 31 A) (current carrying capacity of the con‐
nection point XD10).
Fig. 4-47:
Looping through the control voltage
Sample calculation for 3 drive controllers:
Fig. 4-48:
Continuous current
The result I
D
has to be smaller than the specified current carrying capacity of
the connection point.
4.6.4
Mains connection
Residual-current-operated circuit breakers (RCD, RCCB) as additional fusing
General information
The following designations are used for residual-current-operated circuit
breakers:
●
RCCB (Residual-Current-Operated Circuit Breaker)
●
RCD (Residual-Current-Operated Device)
●
RCM (Residual-Current Monitoring Device)
●
Earth-leakage circuit breaker (voltage-independent)
●
Residual-current circuit breaker (voltage-dependent)
It is only to a limited extent that residual-current-operated circuit
breakers can be used with Rexroth IndraDrive ML systems.
If these circuit breakers are to be used, the company erecting the installation
has to check the mutual compatibility of the residual-current-operated circuit
breakers and installation or machine with the drive system, in order to avoid
Bosch Rexroth AG
DOK-INDRV*-HXX05******-PR02-EN-P
102/407
Rexroth IndraDrive ML Drive Systems with HMU05
Combining the individual components