Yaskawa J1000 Compact V/f Control Drive - Manual (Page 27)

NOTICE
Observe proper electrostatic discharge (ESD) procedures when handling the drive.
Failure to comply could result in ESD damage to the drive circuitry.
It may be difficult to perform maintenance on the cooling fans of drives installed in a
vertical row inside an enclosure.
Ensure adequate spacing at the top of the drive to perform cooling fan replacement when
required.
Operating the motor in the low-speed range diminishes the cooling effects, increases
motor temperature, and may lead to motor damage by overheating.
Reduce the motor torque in the low-speed range whenever using a standard blower cooled
motor. If 100% torque is required continuously at low speed, consider using a special drive
or vector motor. Select a motor that is compatible with the required load torque and operating
speed range.
Do not operate motors above the maximum rated RPM.
Failure to comply may lead to bearing or other mechanical motor failures.
The speed range for continuous operation differs according to the lubrication method
and motor manufacturer.
If the motor is to be operated at a speed higher than the rated speed, consult with the
manufacturer.
Continuously operating an oil-lubricated motor in the low-speed range may result in burning.
2.1 Section Safety
YASKAWA ELECTRIC TOEP C710606 26D YASKAWA AC Drive – J1000 Quick Start Guide 27
2
Mechanical Installation