Three-Phase 400 V Class Models 4A0930, 4A1200; 12-Phase Rectification - YASKAWA P1000 Quick Start Manual

Three-Phase 400 V Class Models 4A0930, 4A1200

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Note: Models 4A0930 and 4A1200 are compatible for operation with 12-phase rectification.
details.

12-Phase Rectification

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Removing the Jumper
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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.
Fire Hazard. Failure to remove jumpers shorting the power supply terminals on the main circuit when operating with 12-phase
WARNING!
rectification may cause death or serious injury by fire.
Application Notes
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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
YASKAWA ELECTRIC TOEP YAIP1U 01B YASKAWA AC Drive - P1000 Quick Start Guide
+3
+1
Relay
DC link
choke
R/L1
S/L2
+
T/L3
R1/L11
S1/L21
T1/L31
–
24 V
Power Gate board
Supply
Figure 3.6 Connecting Main Circuit Terminals
Figure 3.7 to operate with 12-phase rectification.
Jumper
R1/L11
R/L1
S/L2
Figure 3.7 Removing the Jumper
3.2 Main Circuit Connection Diagram
Current
sensor
U/T1
V/T2
W/T3
Control
Operator
board
Refer to 12-Phase Rectification on page 47
S1/L21
T1/L31
T/L3
for
3
47