Bosch Rexroth Rho 4.0 - 3.3 Operation with I;O-Gateway

4−4 Electric Drives
and Controls
Bosch Rexroth AG RhoMotion 1070072365 / 04
Electrical Connections
C
y
L
L
Mains
C
y
C
x
Interference suppression examples
Suppression of contacts
(Alternating current, direct current, offset DC current)
R
C
R
C
Rp
U
VDR
a) b) c)
to b) For sensitive contacts, residual current when contact open!
to c) Voltage-dependent resistance, residual current when contact
open!
Suppression of an inductive load
(Motors, solenoid, relay and contactor coils)
R
C
R
a) b) c) d)
−
+
VDR
D
D
ZD
e)
U
VDR
C
to c) For relay, drop-off delay.
to d) For relay, defined drop-off delay
to e) Must be optimized for inductance!