YASKAWA A1000 Series Technical Manual

2.1 Section Safety
YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual 39
Mechanical Installation
2
NOTICE
The current rating differs for a motor with variable pole pitches differs from a standard motor.
Check the maximum current of the motor before selecting the drive capacity. Only switch motor poles when the motor
is stopped. Switching between motor during run will trigger overcurrent protection circuitry or result in overvoltage
from regeneration, and the motor will simply coast to stop.
When using an explosion-proof motor, it must be subject to an explosion-proof test in conjunction with the
drive.
This is also applicable when an existing explosion-proof motor is to be operated with the drive. Since the drive itself is
not explosion-proof, always install it in a safe place.
Never lift the drive up while the cover is removed.
This can damage the terminal board and other components.

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)