Hypertherm HPR260 Manual Gas Preventive Maintenance Program Rev.5 - Manual (Page 163)

MAINTENANCE
HPR260 Auto Gas Instruction Manual 5-19
Error code troubleshooting – 9 of 10
Error code
number
Name Description Corrective action
138
Chopper 2
overcurrent
(HPR260
power
supplies)
Chopper 2 current
feedback has exceeded
160 amps.
1. Verify that the wiring between CS2 and PCB3 is correct
and not damaged.
2. Measure voltage across current sensor.
a) Red to black = +15 VDC, Green to black = -15 VDC,
white to black = 0 VDC at idle and varies with current
output (4 VDC = 100 amps).
b) If possible, take a voltage reading on current sensor
while trying to cut. Ratio is 4 VDC = 100 amps.
c) If the current sensor voltage is approximately 6.4 VDC or
greater at idle, replace the current sensor.
3. Remove connector J9.1 from the chopper and verify that
LED1 is extinguished.
a) If LED1 is extinguished with the connector removed,
then reconnect J9.1 and try to fire the torch. If the
chopper still goes into overcurrent, replace the chopper.
b) If the chopper does not go into overcurrent, replace
PCB3.
139
Purge
time-out error
The purge cycle did not
complete within 3 minutes.
This is a warning for a possible gas restriction in the leads.
Verify that there are no restrictions in the plasma and shield
hoses.
140
Pressure
transducer
1or 8 error
Auto Gas
Only
Faulty transducer or
control board in the
metering console or the
selection console.
1. Verify that transducer P1 in the selection console is
working properly. Replace if necessary.
2. Verify that transducer P8 in the metering console is working
properly. Replace if necessary.
3. Verify that the control boards in the metering and selection
consoles are working properly. Replace if necessary.
141
Pressure
transducer
2 or 7 error
Auto Gas
Only
Faulty transducer or
control board in the
metering console or the
selection console.
1. Verify that transducer P2 in the selection console is
working properly. Replace if necessary.
2. Verify that transducer P7 in the metering console is working
properly. Replace if necessary.
3. Verify that the control boards in the metering and selection
consoles are working properly. Replace if necessary.
142
Pressure
transducer
3 or 5 error
Auto Gas
Only
Faulty transducer or
control board in the
metering console or the
selection console.
1. Verify that transducer P3 in the selection console is
working properly. Replace if necessary.
2. Verify that transducer P5 in the metering console is working
properly. Replace if necessary.
3. Verify that the control boards in the metering and selection
consoles are working properly. Replace if necessary.
143
Pressure
transducer
4 or 6 error
Auto Gas
Only
Faulty transducer or
control board in the
metering console or the
selection console.
1. Verify that transducer P4 in the selection console is
working properly. Replace if necessary.
2. Verify that transducer P6 in the metering console is working
properly. Replace if necessary.
3. Verify that the control boards in the metering and selection
consoles are working properly. Replace if necessary.
5