6
UP 300 Service Manual
Failure
Cause
Solution
Remark
⚫
An axis has abnormal
sound during
initialization
⚫
Manual three-axis
motion
can’t touch the
limit switch
⚫
The only method is to
turn off the power
➢
Confirm the fault
axis
The axis that causes the initialization failed is the
fault axis (initialization sequence: Z-X-Y)
Normal initialization:
➢
Z axis collides downwards with
limit once;
➢
X axis collides backwards with
limit twice;
➢
Y axis collides rightwards with
limit twice;
➢
LED light is on
➢
Limit switch of fault
axis is
deformed/damaged
Turn off the power, and move the XY axis manually; if
the fault axis can’t touch the limit contact or no
sound is made after touching the limit contact, the
limit is damaged and should be repaired or replaced;
if the failure still exists, process as follows;
➢
Do not break off the limit with
hands if
it can’t touch
➢
Limit wire, motor
wire broken, plug
loose, needle
retreated
Turn off the power, remove the rear panel and check
if the limit (on mainboard side) and motor wire of
the fault axis is broken; if not, re-plug the
limit/motor plug of the fault axis
Turn off the power and replace the motor of the fault
axis
➢
Check which axis isn’t moving
normally during initialization,
touch the limit by hand, and
check whether it can resume
normal initialization
➢
Mainboard
damaged
Turn off the power and replace the mainboard
➢
Mainboard adapter
board damaged
Turn off the power and replace the mainboard
Remove and
replace mainboard
adapter board
➢
CPU damaged
Turn off the power and replace the CPU
➢
Display damaged
Turn off the power and replace the display
Failure 01: Initialization failed: abnormal sound /can't touch the limit
