Hypertherm Phoenix 8.0 - Manual (Page 90)

Setups
83
Pierce Time
Specifies the time delay from when laser head completes lowering until motion is
initiated at creep speed for cutting.
When Manual Pierce Control is selected, this is the total pierce time allowed.
With Automatic Pierce Control is selected, this time is an additional delay after pierce is
complete.
Pulse On Time
When Automatic Pulse Mode is selected for pierce control the user can select Pulse on
time to adjust the pulse.
Pulse Off Time
When Automatic Pulse Mode is selected for pierce control the user can select Pulse on
and off time to adjust the pulse. The Off Time starts when the sensor signal falls below
the next pulse threshold.
Creep Time
Specifies the period after pierce complete that the laser head travels at Creep Speed.
Creep Speed is determined by a setup parameter in the Speeds setup screen and is a
percentage of the programmed cut speed. After Creep Time is complete, the control
accelerates to full cut speed.
Pierce Complete
The Automatic Pierce monitors voltage of sensors in the laser head to detect completion
of the pierce. This is used in conjunction with Pulse On Time, Pulse Off Time and next
pulse.
Next Pulse
Based on sensors in the laser head, the system can determine when the next pulse occurs.
The Next Pulse will be delivered when the voltage drops below the Next Pulse setting.
Start Corner Power
The Start Corner Power allows the user to define a speed where the corner power analog
signal will be used to start to decrease laser power. This is defined as a percentage of cut
speed.
See Corner Power graph, where the example shows this set to 80%.
Minimum Corner Power
This parameter defines the minimum laser resonator power to switch when the cut speed
reduces to zero in a corner. This is defined as a percentage of selected power (watts). See
Corner Power graph, where the example shows 30%.