Ultra-cut 100 xt – Tweco 100 Ultra-Cut Plasma Cutting System with Automated Gas Control User Manual
Page 97
ULTRA-CUT 100 XT
Manual 0-5303
OPERATION
�-27
Group 3 - Inlet Pressure Faults
3-1
Plasma Gas High (>145 PSI)
Reduce pressure from gas supply; defective pressure sensor (PS4).
3-2
Pilot Gas High (>145 PSI)
Reduce pressure from gas supply; defective pressure sensor (PS3).
3-3
Shield Gas High (>145 PSI)
Reduce pressure from gas supply; defective pressure sensor (PS1).
3-4
Shield H2O High (>145 PSI)
Reduce pressure from gas supply; defective pressure sensor (PS2).
Group 4 - Proportional Valves & Solenoids Electrical Faults
4-1
Plasma High (V5) shorted
Check for shorted wire harness; Replace valve
4-2
Plasma Low (V4) shorted
Check for shorted wire harness; Replace valve
4-3
Pilot (V3) shorted
Check for shorted wire harness; Replace valve
4-4
Shield Gas (V1) shorted
Check for shorted wire harness; Replace valve
4-5
Shield H2O (V2) shorted
Check for shorted wire harness; Replace valve
4-6
Vent (SOL2) shorted
Check for shorted wire harness; Replace valve
4-7
Cut (SOL3) shorted
Check for shorted wire harness; Replace valve
4-8
Mark (SOL1) shorted
Check for shorted wire harness; Replace valve
4-9
Vent (SOL2) open
Check for open connection; Replace valve.
4-10 Cut (SOL3) open
Check for open connection; Replace valve.
4-11 Mark (SOL1) open
Check for open connection; Replace valve.
Group 5 - Plasma High Proportional Valve (V5)
5-1
Valve open
Check for open connection; Replace valve.
5-2
DPC inlet Supply pressure low Raise plasma inlet pressure; check for DMC valve not open; restriction in gas supply / hoses.
5-3
Outlet pressure too low
Valve full open. Leak in plasma hose to torch; defective control valve (V5); defective pressure
sensor (PS6); DPC Control PCB
5-4
Outlet pressure low
Tracking error Leak in plasma hose to torch; defective control valve (V5); defective pressure sen-
sor (PS6); DPC Control PCB
5-5
Outlet pressure too high.
Valve at minimun setting. Restriction in plasma hose, torch, DPC manifold; defective control
valve (V5); defective pressure sensor (PS6); DPC Control PCB