Hypertherm HPR800XD Auto Gas Rev.2 - Manual (Page 228)

Maintenance
5-14 HPR800XD Auto Gas – 806500
Error code troubleshooting – error codes 044 to 046
Error code
number
Name Description corrective action
044
Low plasma
gas pressure
Plasma gas pressure under
lower limit of
0.34 bar (5 psi) – preflow
3.45 bar (50 psi) – cutflow
(cutting)
0.34 bar (5 psi) – cutflow
(marking)
1. Inspect gas supply pressure and volume of gas remaining
in supply tanks.
2. Verify the gas regulator settings on gas console with the
parameters in the cut charts.
3. See Setting the supply regulators (Installation section).
4. Perform gas leak tests (Maintenance section).
045
High plasma
gas pressure
Plasma gas pressure over
upper limit of:
7.58 bar (110 psi) – manual
9.65 bar (140 psi) – auto
1. Verify gas supply pressure settings.
2. Verify gas regulator settings on gas console with cut
chart.
3. See Setting the supply regulators (Installation section).
4. Solenoid at off-valve is not opening. Verify power to
valves, disconnect plasma and shield hoses exiting off-
valve.
If pressures decrease a valve is not functioning or no
power to the valve.
046
Low line
voltage
Line voltage is close to or
less than the lower limit of
102 VAC (120 VAC -15%).
The normal lower limit for
operation is
108 VAC (120 VAC -10%).
1. Verify input-line voltage at PCB2 in the power supply
(also PCB1 in the cooler for HPR400XD systems).
Voltage needs to be within 10% of nominal (120 VAC).
2. Verify fuses on PCB2 in the power supply.
3. Verify 120 VAC voltage on plug J2.4, pins 3 and 4 on
PCB2 in the power supply.
4. For HPR400XD systems, verify the voltage on PCB1 in
the cooler with a DC volt meter. It should be about 0.415
VDC between TP23 and TP2 on PCB1.
5. If AC voltage on PCB2, J2.4, pins 3 and 4, is greater
than 108 VAC and DC voltage between TP23 and TP2
on PCB1 is less than 0.38 VDC, verify minimum 108
VAC voltage on plug J4, pins 1 and 2 on PCB1. Verify
the wiring between PCB2 in the power supply and J4 on
PCB1. If the voltage on plug J4 is greater than 108 VAC,
but the DC voltage on TP23 and TP2 is less than 0.38,
replace PCB1.
6. If the AC voltage on PCB2 in the power supply at J2.4,
pins 3 and 4, is greater than 108 VAC and the DC
voltage between TP23 and TP2 on PCB1 in the cooler
(HPR400XD only) is also greater than 0.38 VDC, verify
the CAN link between PCB3 in the power supply and
PCB1 in the cooler.