YASKAWA A1000 Series User Manual

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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-pulse rectification. Refer to
12-Pulse Rectification on page 85 for
details.
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12-Pulse Rectification
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Removing the Jumper
Models 4A0930 and 4A1200 are compatible for operation with 12-pulse rectification. Operation with 12-pulse 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-pulse
rectification may cause death or serious injury by fire.
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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-pulse rectification.
R1/L11
Jumper
R/L1
S/L2
T/L3
T1/L31
S1/L21
Figure 3.7 Removing the Jumper
3.2 Main Circuit Connection Diagram
YASKAWA ELECTRIC TOEP C710616 41G YASKAWA AC Drive - A1000 Quick Start Guide
85
3
Electrical Installation

YASKAWA A1000 Series Specifications

General

Series	A1000
Type	AC Drive
Altitude	Up to 1000m without derating
Output Frequency	0-400 Hz
Control Method	V/f Control
Overload Capacity	150% for 60 seconds
Communication Options	Modbus, DeviceNet, Profibus, Ethernet/IP
Ambient Temperature	-10 to 50°C
Storage Temperature	-20 to 60°C
Humidity	5% to 95% (non-condensing)
Enclosure Rating	IP20
Horsepower	0.5 to 1000 HP
Power Range	0.4 - 630 kW (varies by voltage and model)
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheat
Cooling Method	Fan Cooled
Safety	Safe Torque Off (STO)