Product Manual

24
MSC-18K-X
May 2019
7. System Diagnostic Messages
The mobile column lifts have self-diagnostic systems that may display a fault message on the LCD
screen. Most fault messages indicate some sort of operator error and are designed so the user can
correct the most common operation mistakes without employing a service technician. Listed below
are the most common fault messages.
MESSAGE EXPLAINATION
1
PLC err, check & repower
a. Communication between master and slave columns failed.
(Bad cable connection, or PLC lack of power.)
b. Some PLC not working
Solution: System must be powered off for checking, then power
on again
2
Encode err, WHEEL/AXLE!
Some encoder is not working ( not powered, bad wired or in
error)
Solution: System must be power off for checking then power on
again
3
Asynch! WHEEL / AXLE mode
a. Too big difference in height reading (>1700mm), caused by
over turning
b. Some column not move (motor not running, carriage locked)
c. Some encoder not turning (belt left the gear)
Solution: The height sensor (encoder) must be reset.
4
24Vdc insufficient
After moving stopped, one or more columns were found battery
in low voltage. The lift will not raise up any more but may lower
down.
Solution: To System must be power off for checking then power
on again
5
Locked by abnormal ope.
One button is pressed within 2’ after previous button is released.
Solution: To press any button on other column control panel.
6
Stop!
a. Emergency button is pressed.
b. Communication between columns is broken.
c. One or more column is power off.
d. Within 2 second after button is released.
Solution: Waiting for 2 seconds.
7
Manual adj.! Max. <5s / time
Manually adjust column height. Maximum single operation for 5
seconds per time.
Solution: Press more time for more movement.
8
Reset! xx time xx min.
RESET state: one lift height is below 5 cm when in ALL mode.
Lift will be back in ZERO bias.
Free movement is possible and pair of column can be added or
taken away.
Note: Any operation will leave this in RESET state.
9
Reach end of travel One column stops after reaching its height limit. (this column will
not raise when lower down)
10
(Audible buzzing noise)
The DC Motor incorporates a redundant Contactor, which if one
fails a buzzing noise will indicate the fault, only when motor is
not running. Lift can still operate using one Contactor.
Solution: Contact dealer to replace defective Motor Contactor