Main Circuit Connection Diagram - YASKAWA L1000A Technical Manual

3.3

Main Circuit Connection Diagram

Refer to the Table 3.1 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.
CIMR-L 2A0018 to 2A0075
CIMR-L 4A0009 to 4A0039
Figure 3.2
+1
Relay
+2
R/L1
+
S/L2
T/L3
–
Gate board
CIMR-L 2A0145 to 2A0180
CIMR-L 4A0075 to 4A0112
Figure 3.3
+3
+1
Relay
DC link
choke
R/L1
S/L2
T/L3
–
Gate board
YASKAWA ELECTRIC SIEP C710616 38A YASKAWA AC Drive L1000A Technical Manual
Table 3.1 Drive main circuit configurations
B1 B2
Current
sensor
U/T1
V/T2
W/T3
Jumper
Control
Operator
board
Current
sensor
U/T1
+
V/T2
W/T3
YEA_co
mmon
Control
Operator
board
3.3 Main Circuit Connection Diagram
CIMR-L 2A0085, 2A0115
CIMR-L 4A0045, 4A0060
Figure 3.4
+1
Relay
DC link
choke
R/L1
+
S/L2
T/L3
–
Gate board
CIMR-L 2A0215 to 2A0415
CIMR-L 4A0150 to 4A0260
Figure 3.5
+3
+1
Relay
DC link
choke
R/L1
S/L2
T/L3
–
24 V
Power Gate board
Supply
B1 B2
Current
sensor
U/T1
V/T2
W/T3
YEA_co
mmon
Control
Operator
board
Current
sensor
U/T1
+
V/T2
W/T3
YEA_co
mmon
Control
Operator
board
3
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