REXROTH RD 500 Series, Applications Manual

Page: 43 / 276

RD 500 RD51 Converter Technical Data
3-11
DOK-RD500*RD51*******-IB04-EN-P
Ground +24 V
24 V Stand-by
power supply
X2
V2 PE W2 U2
PE
X83
W1 V1 X1
C D F
EW
SE
WS
K1
K2
BC
24 V
15 V
SNT
Inverter control
DC-link
X1
X155
WR
U1
3
1
2
VL
Stand-by
1 2 X80
Starting lock-
out
+24V
4 3
M 3~
å
item
Rectifier / Inverter / brake-
chopper
A1: 24 V Stand-by power supply,
Starting lock-out and Filter current
feedback
A2: 24 V Stand-by power supply and
Starting lock-out
C1 D1
X1
BS510004EN01.FH9
C D
Connection RZW
between C and F
DC - link
connection
Line supply
connection
Auxilary supply
SNT
U
U
J
U
J
A1/A2
V6 W6 U6
A1
GL
only for special applications
J
J
EW Ground fault transducer
GL Rectifier
K1 Main contactor
K2 Pre-charging contactor
SE Current sensing
SNT Switched-mode power supply
VL Pre-charging
WS Inverter control
WR Inverter
X80 Converter with Starting lock-out
X81
only for additional
functions
CF or DF
Fig.: 3-2 Circuit principle of power section, converter classes A and B