Motor - KITO ER2 Serie Manuel Du Propriétaire

Motor

Symptom Cause
Motor does not Motor coil burning
operate. (two or more
phases)
Lead wire breakage
(more than two lead
wires)
Electric chain hoist Motor coil burning
operates but unable (only one phase)
to lift a load. (single
phase status)
Lead wire breakage
(only in one lead
wire)
Remedy
Measure the coil resistance of each
phase. Replace the motor when the
resistance of all phases are infinity.
Measure the coil resistance of each
phase. Replace the motor when the
resistance of all phases are infinity.
Measure the coil resistance of each
phase. Replace the motor when the
resistance of all phases are infinity.
Measure the coil resistance of each
phase. Replace the motor when the
resistance of all phases are infinity.
Main factor Countermeasure
Over current due to Operate the electric chain
over voltage or low hoist at the rated voltage.
voltage
Over current due to Use the electric chain hoist
over load with a load less than the
capacity.
Operation exceeding Check the short time rating
short time rating or and intermittent rating.
intermittent rating Use the electric chain hoist
within these ratings.
Excessive inching or Do not perform excessive
plugging operation operation.
(consecutive
impression of start
rush current)
Over current due to Refer to the items of Brake.
brake dragging
Lead wire damaged at Assemble with care.
assembling
Vibration, impact Use the electric chain hoist
avoiding the impact.
Layer short due to Be careful about the
poor insulation of coil intrusion of foreign matter
(between phases) into the motor when
assembling.
Lead wire damaged at Be careful not to have the
assembling lead wire caught when
assembling.
Vibration, impact Use the electric chain hoist
avoiding the impact.
3
(to be continued)
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