Small change: +/– 0.010 second
Large change: +/– 0.100 second
Setpoint range: 0–9 seconds
OPERATION
CommandTHC for X-Y Table Instruction Manual 4-7
5
Sets Pierce Delay (motion dwell time). After receiving the “Transfer” signal from the
plasma system, the THC will delay both the “Machine Motion” and the “Pierce
Complete” signals during the pierce delay time. After the “Pierce Delay” time, the
“Machine Motion” output will become active and the cutting machine will begin to
move. At the same time, the torch height will rapidly adjust to the Set Cut Height
setting and the Machine Accel Delay will begin.
Pierce Delay
Selects IHS TEST (no plasma arc) or RUN mode. This control is used to test the
IHS without firing the torch. When IHS TEST is selected, the torch will sense the
workpiece (with ohmic contact sensing or limited force stall sensing) and then
retract to the piercing height. Then when IHS RUN is selected, the torch will
retract to the set retract height. After testing, return to the RUN mode for proper
cutting operation.
IHS
Selects Retract to FULL or to a programmed value set by the operator. In the FULL
mode, the torch will retract to the home position (full up).
A retract distance that is too low will increase the risk of a torch collision when
moving to a new cutting position.
Small change: +/– 0.050 inch/1.27 mm
Large change: +/– 0.50 inch/12.7 mm
Setpoint range: 0–8 inches (0.0–203 mm)
Retract
Note: For best performance, use the THC pierce delay, not the CNC pierce delay.
The Pierce Complete signal only applies to HyDefinition plasma systems.
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