
Portable Plasma Torch Height Controller Manual (F1620)
Chapter 4 common problems
During THC work, user can encounter some problem and solution as follows:
num Fault phenomenon
ber
1
Nixie tube do not
display
2
Motor do not turn
3
After motor turn, it
do not work
4
After THC power
on, the motor has
been rising
5
Arc voltage control
is unstable
Reason
Solution
Power source
Check whether the power source connection is
module have
steady.
problem
Blocking signal 1. Check whether UP_LIMIT/DOWN_LIMIT
make it lock
signal make it lock
2. Over-current protection make motor driver
chip lock.
Motor chip is
1. Check whether mechanical structure is stuck
protected by
over-current action
Collision signal
can make motor
1. Check whether proximity switch wiring is
connected well, check whether parameter P13、
rise all the time
L09 or L08 is set well. If wiring is connected
true and parameter is set true, the red indictor is
lighted when proximity switch close
2. Check whether proximity switch is damaged
3. Check whether torch retaining cap
positioning wiring is connected well. In genal,
there do not have collision signal when torch
retaining cap do not contact with steel.
1. Check whether the grounding is true.
2. Check whether plasma power source
cooling water is oozed.
3. Sensitivity coefficient P07 setting is too
large
6
Before IHS have
It always happen Extend CNC positioning waiting time
accomplished,
in the case of arc
plasma can make arc start signal control
start work right
away
35