Main Circuit Connection Diagram - YASKAWA L1000A Technical Manual

3.3

Main Circuit Connection Diagram

Refer to the Figure 3.2 when wiring the main circuit of the drive. Connections may vary based on drive capacity. The DC
power supply for the main circuit also provides power to the control circuit.
NOTICE: Do not use the negative DC bus terminal "-" as a ground terminal. This terminal is at high DC voltage potential. Improper
wiring connections could damage the drive.
NOTICE: Equipment Hazard. Separate motor and/or braking circuit wiring (terminals, U/T1, V/T2, W/T3, +3, +2, +1,(-), B1, B2, from all
other wiring. Place motor wiring within its own conduit or cable tray with appropriate divider, and use shielded motor cable where
appropriate. Improper wiring practices could result in malfunction of drive due to electrical interference.
CIMR-LU20008 to 20075
CIMR-LU40005 to 40039
CIMR-LU50003 to 50027
B1 B2
+1
Relay
+2
R/L1
+
S/L2
T/L3
–
Gate board
CIMR-LU20145 to 20180
CIMR-LU40075 to 40112
CIMR-LU50052 to 50077
+3
+1
Relay
DC link
choke
R/L1
+
S/L2
T/L3
–
Gate board
YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual
Current
sensor
U/T1
V/T2
W/T3
Control
Operator
board
Current
sensor
U/T1
V/T2
W/T3
YEA_co
mmon
Control
Operator
board
Figure 3.2 Drive main circuit configurations
3.3 Main Circuit Connection Diagram
CIMR-LU20085, 20115
CIMR-LU40045, 40060
CIMR-LU50032, 50041
B1 B2
+1
Relay
DC link
choke
R/L1
+
S/L2
T/L3
–
Control
Gate board
board
CIMR-LU20215 to 20415
CIMR-LU40150 to 40605
CIMR-LU50003 to 50200
CIMR-LU50099 to 50200
+3
+1
Relay
DC link
choke
R/L1
+
S/L2
T/L3
–
24 V
Control
Power Gate board
Supply
Current
sensor
U/T1
V/T2
W/T3
YEA_co
mmon
Operator
Current
sensor
U/T1
V/T2
W/T3
YEA_co
mmon
Operator
board
3
61