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KITO ER2 Series User Manual

KITO ER2 Series
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101
Motor
Symptom Cause Remedy Main factor Countermeasure
Motor does not
operate.
Motor coil burning
(two or more
phases)
Measure the coil resistance of each
phase. Replace the motor when the
resistance of all phases are infinity.
Over current due to
over voltage or low
voltage
Operate the electric
chain hoist at the rated
voltage.
Over current due to
over load
Use the electric chain
hoist with a load less
than the capacity.
Operation exceeding
short time rating or
intermittent rating
Check the short time
rating and intermittent
rating. Use the electric
chain hoist within these
ratings.
Excessive inching or
plugging operation
(consecutive
impression of start
rush current)
Do not perform
excessive operation.
Over current due to
brake dragging
Refer to the items of
Brake.
Lead wire breakage
(more than two lead
wires)
Measure the coil resistance of each
phase. Replace the motor when the
resistance of all phases are infinity.
Lead wire damaged at
assembling
Assemble with care.
Vibration, impact Use the electric chain
hoist avoiding the
impact.
Electric chain hoist
operates but unable
to lift a load. (single
phase status)
Motor coil burning
(only one phase)
Measure the coil resistance of each
phase. Replace the motor when the
resistance of all phases are infinity.
Layer short due to
poor insulation of coil
(between phases)
Be careful about the
intrusion of foreign
matter into the motor
when assembling.
Lead wire breakage
(only in one lead
wire)
Measure the coil resistance of each
phase. Replace the motor when the
resistance of all phases are infinity.
Lead wire damaged at
assembling
Be careful not to have
the lead wire caught
when assembling.
Vibration, impact Use the electric chain
hoist avoiding the
impact.
3
Troubleshooting Motor
(to be continued)

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KITO ER2 Series Specifications

General IconGeneral
Control Voltage24V
Duty Cycle40% ED
Protection ClassIP55
Temperature Range-20°C to +40°C
TypeElectric Chain Hoist
Frequency50/60 Hz
Motor InsulationClass F
Brake TypeElectromagnetic
Load Chain GradeGrade 80
Ambient Temperature-20°C to +40°C
Power Supply3-phase
Lift Height3 to 30 meters
Chain Falls1 or 2
Voltage200-240V, 380-480V

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