10
KATANA S610M Inverter Specialized for Elevator Manual
Thermal protection from the inverter is available to a matched motor. However, when the rated
capacity of the motor does not match with that of the inverter, it is necessary to adjust the protection value
or take other protective measures to ensure the safe operation of the motor.
4)
Operating at a frequency above 50Hz
If the inverter needs to operate at a frequency above 50 Hz, in addition to the increased vibration and
noises of the motor, the speed range of the motor bearings and mechanical devices must be confirmed in
advance.
5)
Lubrication of mechanical devices
Mechanical devices such as reduction gearbox and gears, which need lubrication, may suffer damages
due to reduced lubrication effect when operating at low speed for a long time. Make sure to check in
advance.
6)
Negative torque load
Negative torque usually occurs in occasion of lifting the load, so the inverter is likely to trip due to
over-current or over-voltage. Brake components with matched parameters should be considered for such
occasions.
7)
Motor insulation inspection prior to connecting with the inverter
Motor insulation inspection is necessary before the first time use or after a long time of being laid
aside, to prevent the inverter from damages due to winding insulation failure of the motor. Please use 500V
voltage megohmmeter for inspection, as shown in figure 1-1, and make sure that the measured insulation
resistance is no less than 5MΩ.
Motor
Grounding body
Motor input terminal
U
、
V
、
W
