2.1 Section Safety
YASKAWA ELECTRIC SIEP C710616 35D YASKAWA AC Drive E1000 Technical Manual 43
The rated input current of submersible motors is higher than the rated input current of standard motors.
Select an appropriate drive according to its rated output current. When the distance between the motor and drive is
long, use a cable thick enough to connect the motor to the drive to prevent motor torque reduction.
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.
SIEP_C710616_35.book 43 ページ 2015年11月30日 月曜日 午後2時2分