Hypertherm HPR800XD Auto Gas Rev.2 - Manual (Page 236)

Maintenance
5-22 HPR800XD Auto Gas – 806500
Error code troubleshooting – error codes 134 to 140, 334 and 338
Error code
number
Name Description corrective action
134
Primary
334
Secondary
Chopper 1
overcurrent
Chopper 1 current
feedback has exceeded
160 amps.
1. Verify that the wiring between CS1 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 JA.1 from the chopper and verify that
LED1 is extinguished.
a) If LED1 is extinguished with the connector removed,
then reconnect JA.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.
138
Primary
338
Secondary
Chopper 2
overcurrent
HPR260XD
HPR400XD
only
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 JB.1 from the chopper and verify that
LED1 is extinguished.
a) If LED1 is extinguished with the connector removed,
then reconnect JB.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.
1. Verify that there are no restrictions in the plasma and
shield hoses.
2. Verify that the inlet gas pressures are set to the proper
levels.
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.