Hypertherm Phoenix 8.0 - Manual (Page 373)

Password Setups
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For example: The resolution of a 4X – 1000 line encoder counts both edges (lines) of
channel A and channel B to equal 4 counts per line multiplied by the 1000 lines per
revolution would equal 4000 counts per revolution. If the encoder revolutions per inch to
travel are 1:1, we would have 4000 encoder counts per inch of travel.
Encoder Counts/ Inch = 4 Counts/ Line x 1000 Lines/ Rev x 1 Rev/ Inch = 4000
Fault Ramp Time
This parameter sets the motion deceleration time after a fault occurs. At the end of “Fault
Ramp Time, The drives will be disabled.
Drive Type
This parameter is used to tell the CNC what type of control loop to run. If you are
running an external velocity loop drive (indicated by having an integrated tachometer in
the motor), select Velocity. If you are running in torque mode (no tachometer), select
Current.
DAC Polarity
This parameter allows changing of the analog output polarity to establish proper control
loop feedback without any wiring changes.
Encoder Polarity
This parameter allows changing of the encoder input polarity to establish proper counting
for positive machine motion without any wiring changes.
Encoder Decode Mode
Currently, the CNC only supports 4X encoder decode mode. This has been done to
increase positional accuracy.
Use Hardware Overtravels
Select whether or not the cutting machine will be using Hardware Overtravels. If
Hardware Overtravels are used, the CNC will disable feedback and display an error
message if the inputs become active. It is recommended that Hardware Overtravels be
installed.
Backlash Compensation
The Backlash Compensation parameter is used to offset or compensate for any backlash
in the mechanics of the drive system.
Home
The Home parameter is used to activate use of the Home feature. Depending on control
I/O configuration, the table may be Homed to either a designated Home Switch or an
Overtravel Switch.
The Home feature is used to set a known absolute physical position location on the
cutting table that is used for referencing future manual “Go to Home” and other motion