u
Three-Phase 400 V Class Models 4A0930, 4A1200
+1
–
R/L1
S/L2
T/L3
R1/L11
S1/L21
T1/L31
U/T1
V/T2
W/T3
+3
+
24 V
Power
Supply
DC link
choke
Relay
Gate board
Control
board
Operator
Current
sensor
Figure 3.6 Connecting Main Circuit Terminals
Note: Models 4A0930 and 4A1200 are compatible for operation with 12-phase rectification. Refer to 12-Phase Rectification on page 97 for
details.
u
Single-Phase Connections
Use terminals R/L1 and S/L2 to connect single-phase power.
u
12-Phase Rectification
n
Removing the Jumper
Models 4A0930 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 4A0930 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 Figure 3.7 to operate with 12-phase rectification.
3.2 Main Circuit Connection Diagram
YASKAWA TOEP YAIP1W 01F YASKAWA AC Drive - iQpump1000 User Manual
97
3
Electrical Installation
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