Three-Phase 400 V Class (Cimr-Ao4A0930, 4A1200); 12-Phase Rectification - YASKAWA A1000 Technical Manual

3.2 Main Circuit Connection Diagram
u

Three-Phase 400 V Class (CIMR-Ao4A0930, 4A1200)

Note: Models CIMR-Ao4A0930 and 4A1200 are compatible for operation with 12-phase rectification.
42 for details.
u

12-Phase Rectification

n Removing the Jumper
Models CIMR-Ao4A0930 and 4A1200 are compatible for operation with 12-phase rectification. Operation with 12-phase
rectification requires the user to separately prepare a 3-winding transformer for the power supply. Contact Yaskawa or your
nearest sales representative for transformer specifications.
WARNING! Fire Hazard. Failure to remove jumpers shorting the power supply terminals on the main circuit when operating with 12-phase
rectification may cause death or serious injury by fire.
n Application Notes
Models CIMR-Ao4A0930 and 4A1200 are shipped from the factory with jumpers short-circuiting terminals R/L1-R1/L11,
S/L2-S1/L21, and T/L3-T1/L31.
Remove M5 screws and jumpers as shown in
42
+3
+1
Relay
DC
reactor
R/L1
S/L2
+
T/L3
R1/L11
S1/L21
T1/L31
–
24 V
Power Gate board
Supply
Figure 3.5 Connecting Main Circuit Terminals
Figure 3.6 to operate with 12-phase rectification.
YASKAWA ELECTRIC TOEP C710616 41B YASKAWA AC Drive - A1000 Quick Start Guide
Current
sensor
U/T1
V/T2
W/T3
Control
Operator
board
Refer to 12-Phase Rectification on page