REXROTH RD 500 Series, Applications Manual

Page: 154 / 276

5-14
Inverter Technical Data RD 500 RD51
DOK-RD500*RD51*******-IB04-EN-P
Circuit Principle of Power Section, Size Classes C - E
Ground +24 V
X2 V2 PE W2 U2
PE
X83
EW
SE
WS
24 V
15 V
SNT
inverter control
DC link
WR
3
1 2
Stand-by
1 2
X80
+24V
3 4
å
EW Ground fault transducer
SE Current sensing
SNT Switched-mode power supply
WS inverter control
WR inverter
X1 C
D
C1 D1
Starting lock-out
BS510007EN02.FH9
X80 inverter with starting lock-out
V1
J
V1 24 V Stand-by Power supply
additional function
X1
M 3~
J
only at additional function L1 or F1
Device-variant
X81
only for additional
function C1 or D1
L+ L-
PE
FF4A / 660V
Supply SNT
optionaly
DC link connection
ext. fuses
Installation must be
inherently short-circuit-proof
at use as Motor inverter SFT,
the earth connection be
inapplicable
X155
Fig.: 5-3 Circuit principle of power section, inverter classes C - E
Note: The connection (inherently short circuit proof) between C1 – C
and D1 - D can be made .
-or-
As an Option the external supply of switched-mode power
supply is possible.