Hypertherm Phoenix 8.0 - Manual (Page 285)

Part Options
278
Skew Adjustment
This determines if the control will adjust for plate skew when performing the align
function.
Skew Reference
This is the skew reference corner which you will move towards and mark a point along
the edge. This is only available if Skew Adjustment is On.
At Corner
Press this soft key when at the corner of the plate you want to align the part in.
At Skew Point
Press this soft key when at the edge of the plate for skew adjustment. This is only
available if Skew Adjustment is On.
Automatic Plate Alignment (APA)
The Automatic Plate Alignment (APA) feature detects the edges of a rectangular plate
and calculates the degree of skew to align a part on the plate. Two types of APA
sequences are available:
• Five-point alignment is the default type of APA and detects plate alignment, skew,
and size.
• Three-point alignment detects plate alignment and skew.
Notes about APA:
• The APA sensors must be assigned in I/O setups. The logic states must be set so that
the input is active when the sensor is over the plate.
• The sensor moves fast to the outward edge of the plate until the sensor detects the
edge and switches to OFF. For accuracy, motion reverses until the sensor is activated
again and switches to ON. See Sensing Sequence.
• If User Defined is selected as the Manual Offset value on the Manual Options screen,
an X/Y tool offset value from the Setup screen is required to compensate for the
distance between the master torch and the APA sensor.
• Scrap clearance, if required, is entered on the Align screen. In addition, Corner to
Align With on the Align screen sets the start corner location of the program.
• If your machine requires homing, this function should be performed before APA.
• Some sensors may detect the table slats as an extension of the plate. If this is a
problem in your application, configure 2 sensors. The first sensor to detect the edge
of the plate (switch to OFF) is used for all plate detection at that location.
• An appropriate X/Y offset for the two sensors is recommended to minimize the
potential that booth sensors would the slats as an extension of the plate. The distance
between the first and second sensor is programmed in tool offset #11 on the Setup
screen.
• Sensing radius should be programmed according to the radius of the sensor. If dual
sensors are used, the radius applies to both sensors.