Reference; Guidance On Troubleshooting - KITO ER2 Serie Manuel Du Propriétaire

Chapter 3 Troubleshooting

Guidance on Troubleshooting

■ Guidance on Troubleshooting
Following table is the summary of the main failure causes based on the failure conditions and their inspection items.
Refer to the page of each item for the check method, treatment and the details of countermeasure.
• Refer to "Technical Materials" (P122) for the product structure and the component name of each part.
■ Single speed model
Electric chain Sounds no brake
hoist does not operating sound
operate without
load
3
Sounds brake operating sound
Electric chain Does not operate with a load
hoist operates (Motor sounds howling)
without load
Operates slowly with a load
Operates Operates differently from the indication of the
differently from Push Button Switch
the indication (operates in the opposite direction)
of the Push
Does not operate when operating any one of
Button Switch.
the Push Button Switch
Does not stop Does not stop even if the Push Button Switch is released.
normally.
Too long (or short) stopping distance
Does not stop at the upper/lower limit.
94
Conditions
Sounds no
Electromagnetic
contactor operating
sound
Sounds contactor
Electromagnetic
operating sound
Main fault contents
Improper source voltage
Breakage or burning of control
circuit
Faulty electrical part
Breakage or burning of power
circuit,
Faulty motor or brake
Breakage of driving part
Sticking of Bearing
Open phase
(single phase operation)
Overload
(clutch activated)
Voltage drop
Negative phase connection
Wrong connection
Breakage of control circuit
Faulty electrical part
Melted contact point
Abrasion of brake lining
Negative phase connection
Wrong connection

Reference

Check item
Power
Circuit breaker
Power Cable
Internal wiring
Electromagnetic Contactor
Transformer
Fuse
Upper/Lower Limit Switch
Push Button Switch
Motor
Brake
Internal wiring
Electromagnetic Contactor
(melted contact points)
Gears and Joints
Bearing
Power
Power Cable
Motor
Electromagnetic Contactor
(melted contact points)
Friction Clutch
Friction Clutch with
Mechanical Brake
Power Cable
Power Cable
Internal wiring
Push Button Switch
Internal wiring
Push Button Switch
Electromagnetic Contactor
Upper/Lower Limit Switch
Electromagnetic Contactor
Brake
Power Cable
Internal wiring
Push Button Switch
page
99
99
100
102
105
104
105
106
107
101
102
104
105
115
116
99
100
101
105
109
110
100
100
104
107
104
107
105
106
105
102
100
104
107