Section Safety - YASKAWA T1000V Technical Manual

2.1 Section Safety

2.1 Section Safety
Provide sufficient cooling when installing the drive inside an enclosed panel or cabinet.
Failure to comply could result in overheating and fire.
When multiple drives are placed inside the same enclosure panel, install proper cooling to ensure air entering the
enclosure does not exceed 50 °C.
Do not carry the drive by the front cover.
Failure to comply may result in minor or moderate injury from the main body of the drive falling.
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.
When the wiring distance is greater than 100 meters, pay special attention to the motor insulation voltage or use
a drive-rated motor.
Failure to comply could lead to motor winding failure.
The motor may require more acceleration torque with drive operation than with a commercial power supply.
Set a proper V/f pattern by checking the load torque characteristics of the machine to be used with the motor.
Do not use a drive for a single-phase motor.
Replace the motor with a three-phase motor.
If an oil-lubricated gearbox or speed reducer is used in the power transmission mechanism, oil lubrication will
be affected when the motor operates only in the low speed range.
The power transmission mechanism will make noise and experience problems with service life and durability if the
motor is operated at a speed higher than the rated speed.
32
W ARNING
Fire Hazard
CAUTION
Crush Hazard
NOTICE
YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual