Push Button Switch - KITO ER2 Serie Manuel Du Propriétaire

Push Button Switch

Symptom Cause
Electric chain hoist Emergency Stop
does not operate. button is pressed to
(Electromagnetic its end and locked.
Contactor does not
operate.)
Faulty switch unit
Breakage inside the
switch
Loosened terminal
screw inside the
switch unit
Wire breakage of
Push Button Switch
Cord
The electric Wrong wiring
chain hoist does
not operate as
indicated.
Wrong affixing of
N-E-S-W label
Electric chain hoist Defective return
does not stop even action of the switch
if the Push Button is unit
released
Remedy
When the Emergency Stop button is
pressed and locked, turn it clockwise to
release the lock.
Emergency Stop
button
Check the conduction of the contact
points. Replace the Push Button Switch if
it has no conduction.
Check that the Push Button Switch
cord is connected with the switch unit
correctly. Repair the cord if it has no
conduction.
Tighten the screw if loosened
Check the conduction of the Push Button
Switch Cord. If it has no conduction,
replace the cable, or the Push Button
Switch Cord as a set.
Check the wiring in accordance with
the wiring diagram. Perform the wiring
correctly.
If the wiring of the Push Button Switch
is correct, the cause is in the negative
phase connection. Change two wires of
the power line.
Affix the label in the correct direction.
Replace the Push Button Switch if it does
not operate smoothly.
Main factor Countermeasure
Forgot releasing the Read "How to operate the
Emergency Stop push button" (P28) and use
button the electric chain hoist.
Vibration, impact Use the electric chain hoist
avoiding the impact.
Vibration, impact Use the electric chain hoist
avoiding the impact.
Vibration, impact Use the electric chain hoist
avoiding the impact.
Damage of cable cover Operate the electric chain
hoist not to impede with
other facility.
External force applied Tie the protection wire
on the cable due to securely. (See "Cable
improper tying of the Connection" (P55).)
protection wire
Wrong wiring Correct the wiring in
accordance with the wiring
diagram.
Affixing the label in an Affix the label correctly.
improper direction
Vibration, impact Use the electric chain hoist
avoiding the impact.
3
(to be continued)
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