Hypertherm HPR260 Manual Gas Preventive Maintenance Program Rev.5 - Manual (Page 158)

MAINTENANCE
5-14 HPR260 Auto Gas Instruction Manual
5
Error code troubleshooting – 4 of 10
Error code
number
Name Description Corrective action
050
Start signal
is on at
power-up
Plasma start signal input is
active during power-up of
power supply.
1. Stop or clear the cutting program. The plasma start signal to
the plasma was not dropped after the last cut.
2. Verify that the CNC interface cable is not damaged.
3. Remove CNC interface cable from PCB3 and look for an
open circuit between pins 15 and 34.
4. If the circuit is closed either the CNC is issuing a plasma
start or the CNC interface cable is damaged.
5. If circuit is open, and LEDN300J is illuminated with CNC
Interface cable removed from PCB3, replace PCB3.
053
Low shield
gas pressure
Shield pressure is below
lower limit of 0.14 bar
(2 psi).
1. Verify gas supply pressure and that a sufficient volume of
gas remains in your supply.
2. Verify gas regulator settings on gas console with cut chart.
3. See Setting the supply regulators (Installation section).
4. Perform gas leak tests (Maintenance section).
054
High shield
gas pressure
Shield gas pressure is
over upper limit of 7.58 bar
(110 psi).
1. Verify gas supply regulator settings. See Setting the supply
regulators (Installation section).
2. Verify pressure settings on gas console with cut chart.
3. 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.
055
MV1 inlet
pressure
Auto Gas
Only
Motor valve 1 inlet
pressure is less than 3.45
bar (50 psi) or greater
than 9.65 bar (140 psi).
1. Verify that gas pressure transducer P1 is between 3.45 bar
(50 psi) and 9.65 bar (140 psi). Increase or decrease the
inlet gas pressure to correct the problem.
056
MV2 inlet
pressure
Auto Gas
Only
Motor valve 2 inlet
pressure is less than 3.45
bar (50 psi) or greater
than 9.65 bar (140 psi).
1. Verify that gas pressure transducer P2 is between 3.45 bar
(50 psi) and 9.65 bar (140 psi). Increase or decrease the
inlet gas pressure to correct the problem.
057
Cut gas 1
pressure
Auto Gas
Only
Cut gas 1 outlet pressure
is less than 3.45 bar
(50 psi) or greater than
9.65 bar (140 psi) in the
selection console.
1. Verify that gas pressure transducer P3 is between 3.45 bar
(50 psi) and 9.65 bar (140 psi). Increase or decrease the
inlet gas pressure to correct the problem.
058
Cut gas 2
pressure
Auto Gas
Only
Cut gas 2 outlet pressure
is less than 3.45 bar
(50 psi) for non-mixing, or
less than 1.38 bar (20 psi)
when mixing or greater
than 9.65 bar (140 psi) for
non-mixing and mixing.
1. Verify that gas pressure transducer P4 is between 3.45 bar
(50 psi) and 9.65 bar (140 psi). Increase or decrease the
inlet gas pressure to correct the problem.