Maintenance
HPR400XD Auto Gas –
806160
5-47
Start circuit functional schematic
Start circuit troubleshooting
Start-circuit Pcb1
operation
The start circuit is a high-speed switch that quickly transfers the pilot arc current from the pilot arc lead to the work lead.
The start circuit performs 2 functions:
1. It allows the initial pilot arc current to flow through the pilot arc lead quickly, with little impedance.
2. After initial pilot arc current is established, the start circuit introduces impedance to the pilot arc lead to aid in
transferring the arc to the workpiece. See schematic below.
Plasma power supply
Choke
Diode
Start circuit
cutting
arc
Pilot
arc
Power
resistor
Control
logic
ALEL Caps
chopper
IGBT
DANgER
SHock HAzARD
Always use caution when servicing a power supply when plugged in and the covers are removed.
Dangerous voltages exist within the power supply which could cause injury or death.
Summary of Contents for HyPerformance Plasma HPR400
Page 1: ...HyPerformance Plasma HPR400XD Auto gas Instruction manual 806160 Revision 4 ...
Page 26: ...Specifications 2 2 HPR400XD Auto Gas 806160 ...
Page 48: ...Installation 3 10 HPR400XD Auto Gas 806160 ...
Page 53: ...Installation HPR400XD Auto Gas 806160 3 15 Horizontal RHF mounting Vertical RHF mounting ...
Page 57: ...Installation HPR400XD Auto Gas 806160 3 19 This page is blank intentionally ...
Page 65: ...Installation HPR400XD Auto Gas 806160 3 27 7 8 8 7 ...
Page 100: ...Installation 3 62 HPR400XD Auto Gas 806160 ...
Page 107: ...Operation HPR400XD Auto Gas 806160 4 7 Diagnostic screen ...
Page 108: ...Operation 4 8 HPR400XD Auto Gas 806160 Test screen ...
Page 109: ...Operation HPR400XD Auto Gas 806160 4 9 Cut chart screen ...
Page 197: ...Operation HPR400XD Auto Gas 806160 4 97 ...
Page 287: ...7 4 HPR400XD Auto Gas 806160 Discrete output functionality ...
Page 347: ...Appendix B CNC Interface Protocol b 28 HPR400XD Auto Gas 806160 ...
Page 355: ...4 HPR400XD Auto Gas 806160 ...