Trouble
Possible causes
Trouble-shooting
8. No working
(1)
The main power supply of end-
carriage, trolley, or main hoist is not
turned on
(2)
Any problem with the Upper-limit-
switch?
(3)
Problem with the control circuit?
(4)
Push-button malfunctioned
(5)
Main power contactor has problem
or does not work
(6)
Runway power-feed, R- or T-phase
current-collector has taken off
(7)
The main fuse has broken
(8)
The movable power-cable and
connecting point have trouble
(9)
Voltage of power supply has
dropped down
(1)
Check the connections of current
collector and other power
(2)
Move the Upper-limit-switch to
normal position. Check the MT-
main loop
(3)
Replace with a new push-button
(4)
Check the Upper-limit-switch
and the fuse of main contactor
circuit, or replace with a new
contactor
(5)
Identify the reasons of power
disconnection and recover the
current collector
(6)
Replace the main fuse
(7)
Tie up the loosened conducting-
wire, replace with new control
cables if necessary; check the
connection
(8)
Check the reason of voltage
dropping
9. NOT lifting UP
(1)
Check up the limit-switch
(2)
The “UP” current of lifting has
broken
(3)
Motor is too hot
(4)
Push button “UP” malfunctions
(5)
Contactor of UP malfunctions
(1)
If limit-switch malfunctions
(2)
Check the break point of current
(3)
Fix it, or isolate it with the
temperature surrounding
(4)
Replace with a new push-button
(5)
Replace with a new “UP”
contactor
10. NOT lifting DOWN
(1)
The “DOWN” current load of lifting
has broken
(2)
Push button “DOWN” malfunctions
(3)
Contactor of DOWN malfunctions
(1)
Check the break point of current
(2)
Replace new push-button
(3)
Replace with a new “DOWN”
contactor
11. Hoisting up and
down; do not work
(motor stopped)
(1)
The fuse 10A has broken
(2)
The brake of hoisting motor is not
turned ON
(3)
The hoisting motor has burnt out
(1)
Replace with a new fuse
(2)
Contact the supplier or the
regional distributor
12. Trolley cannot move
towards EAST
(1)
Check up EAST limit-switch
(2)
The “EAST” current of hoisting has
broken
(3)
Push button “EAST” malfunctions
(4)
Contactor of EAST malfunctions
(1)
Replace with a new EAST limit-
switch
(2)
Check up the break point of
current
(3)
Replace with a new push-button
(4)
Replace with a new “EAST”
contactor
Summary of Contents for M Series
Page 1: ...M series OPERATIONS MANUAL ...
Page 24: ...FiTOP 20160620 ...