Leader F1620 - Chapter 4 common problems; Troubleshooting Guide

Portable Plasma Torch Height Controller Manual (F1620)
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Chapter4commonproblems
During THC work, user can encounter some problem and solution as follows:
num
ber
Fault phenomenon Reason Solution
1 Nixie tube do not
display
Power source
module have
problem
Check whether the power source connection is
steady.
2 Motor do not turn Blocking signal
make it lock
1. Check whether UP_LIMIT/DOWN_LIMIT
signal make it lock
2. Over-current protection make motor driver
chip lock.
3 After motor turn, it
do not work
Motor chip is
protected by
over-current action
1. Check whether mechanical structure is stuck
4 After THC power
on, the motor has
been rising
Collision signal
can make motor
rise all the time
1. Check whether proximity switch wiring is
connected well, check whether parameter P13、
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.
5 Arc voltage control
is unstable
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
accomplished,
plasma can make arc
start work right
away
It always happen
in the case of arc
start signal control
Extend CNC positioning waiting time