Hypertherm HPR260 Manual Gas Preventive Maintenance Program Rev.5 - Manual (Page 247)

APPENDIX B – CNC INTERFACE PROTOCOL
b-2 HPR260 Auto Gas Instruction Manual
Interface hardware
• The interface will use a combination of discrete signals (5 inputs, 3 outputs, and 24 VDC active low) and an
addressable RS422 interface.
• The hardware will provide 4 unique addresses, which allows 4 systems to be connected to the same CNC.
Addressing mechanism will be inside the power supply, on a PC board (Note: A total of 32 I/O (20 Inputs,
12 Outputs) points will be required for 4 systems).
• The RS422 hardware will have tri-stateable transmitter to disconnect itself from the line when not
communicating.
• Mounting holes for footprint of Command THC plasma interface board.
• Must have an interface compatible with the Command THC/HD4070.
Signal list
Signals
Signal name Type Description
Plasma Start Input When active, the plasma system will fire an arc
Machine Motion 1 Output Indicates the arc has transferred to the plate. This signal is selected
using jumper on power supply control board. Only 1 motion signal is
needed per system. The remaining motion signals can be used to
wire multiple systems in a daisy chain configuration.
Machine Motion 2 Output Indicates the arc has transferred to the plate. This signal is selected
using jumper on power supply control board. Only 1 motion signal is
needed per system. The remaining motion signals can be used to
wire multiple systems in a daisy chain configuration.
Machine Motion 3 Output Indicates the arc has transferred to the plate. This signal is selected
using jumper on power supply control board. Only 1 motion signal is
needed per system. The remaining motion signals can be used to
wire multiple systems in a daisy chain configuration.
Machine Motion 4 Output Indicates the arc has transferred to the plate. This signal is selected
using jumper on power supply control board. Only 1 motion signal is
needed per system. The remaining motion signals can be used to
wire multiple systems in a daisy chain configuration.
Hold Ignition Input When active system will stay in preflow and delay torch ignition.
System Error Output Indicates that an error has occurred in the plasma system