Portable Plasma Torch Height Controller Manual (F1620)
spin button named “down height”). When proximity switch is breaking away from for
long time, torch can keep straight rise until it collide upper limit of motor.
¾ Torch retaining cap collision detection
When we test collision by torch retaining cap, if torch retaining cap connect
with work piece, detection voltage can be start and promote the touch height which
down initially(height can change by the panel spin button named “down height”).
After torch rise, torch retaining cap depart from work piece and collision signal reset
at once. If torch retaining cap signal is keeping for long time, torch can keep straight
rise until it collide upper limit of motor.
¾ Dual speed of IHS
After down initially, torch can descend 6 second at fastest speed (the time can
change by menu), then it descend at lowest speed (the lowest speed= the fastest/4)
until torch collide work piece. Two kinds of speed down can promote work
efficiency, descend in appropriate height, reduce collision impact, and extend serve
life of torch retaining cap.
2） Auto arc voltage height control
When it fit to start auto height control, if arc voltage do not exceed 30V which
we have been set up(parameter can change by menu), the THC will start auto height
control.
3） Auto torch promote after collision
When collision happen in a condition which torch and down is not working,
torch can automatic promote, the time named urgency collision rise spear time.
When down initially detection is working, or when collision happen within torching,
auto torch promote, the time named down height time.
4） Auto torch promote after torch is accomplished
After torch is accomplished，auto torch promote, height can change by setting
parameter.
5） Manual operation
Many functions can be manual operated on operation panel of THC, such as,
set auto/manual mode of THC, manually control torch up and down, IHS test arc start
test.......etc.
6） Auto operate
After numerical control system send arc start signal, THC can automatic
accomplish down initially—arc start—arc start feedback success, after CNC receive
signal which arc start feedback is successful, machine tool start to motion and incise.
7） The function of displaying and monitoring
THC display arc voltage value by using two nixie tube, the green nixie tube
above equipment is used for display arc voltage setting value, the red nixie tube
under equipment is used for display actual value of arc voltage. It is convenience for
3
