YASKAWA L1000A - Main Circuit Connection Diagram

3.3 Main Circuit Connection Diagram
YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual 61
Electrical Installation
3
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.
Figure 3.2 Drive main circuit configurations
CIMR-LU20008 to 20075
CIMR-LU40005 to 40039
CIMR-LU50003 to 50027
CIMR-LU20085, 20115
CIMR-LU40045, 40060
CIMR-LU50032, 50041
CIMR-LU20145 to 20180
CIMR-LU40075 to 40112
CIMR-LU50052 to 50077
CIMR-LU20215 to 20415
CIMR-LU40150 to 40605
CIMR-LU50003 to 50200
CIMR-LU50099 to 50200
+1
+2
–
R/L1
S/L2
T/L3
Relay
Gate board
Control
board
Operator
+
Current
sensor
U/T1
V/T2
W/T3
B1 B2
+1
–
R/L1
S/L2
T/L3
U/T1
V/T2
W/T3
B1 B2
DC link
choke
+
Relay
Gate board
Control
board
Operator
Current
sensor
YEA_co
mmon
+1
–
R/L1
S/L2
T/L3
U/T1
V/T2
W/T3
+
+3
DC link
choke
Relay
Gate board
Control
board
Operator
Current
sensor
YEA_co
mmon
+1
–
R/L1
S/L2
T/L3
U/T1
V/T2
W/T3
+3
+
24 V
Power
Supply
DC link
choke
Relay
Gate board
Control
board
Operator
Current
sensor
YEA_co
mmon
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