Error Code Troubleshooting - Error Codes 071 To 075, 273 To 275 - Hypertherm HyPerformance Plasma HPR400 Instruction Manual

Error code troubleshooting – error codes 071 to 075, 273 to 275
Error code
Name
number
Coolant
071
overtemp
Auto gas,
control board
072 overtemp
Auto gas
only
073
Chopper 3
Primary
overtemp
HPR400XD
273
only
Secondary
074
Chopper 4
Primary
overtemp
HPR400XD
274
only
Secondaryy
075
Low current
Primary
on CS3
HPR400XD
275
only
Secondary
HPR400XD Auto Gas – 806160
Description
Torch coolant has
overheated.
Control board has
exceeded 90° C (194° F).
Chopper 3 has
overheated.
Chopper 4 has
overheated.
A current less than
10 amps has been
detected by
current sensor 3.
corrective action
1. Verify that the large fan in the cooler (HPR400XD only) is
running.
2. Blow dust out of the coolerr (HPR400XD only), especially
from the heat exchanger.
3. Verify that the voltage on the rear side of J1.5
pins 6 and 8, is equal to or lower than 2.8 VDC.
4. If voltage is low, inspect wiring between coolant
temperature sensor and J1.5, pins 5 and 6, for shorts to
wires or ground.
5. If wiring is good, the coolant has overheated; let system
idle with the fans running for 30 minutes to cool.
6. Replace the coolant temperature sensor if it is open or
shorted. Sensor part number is 229224.
Verify that the airflow to the gas console is not restricted.
1. Verify that all chopper fans are operating properly.
Spinning fan blades should be difficult to see.
2. Blow dust out of system, especially from fans and heat
sink of chopper.
3. Verify that the voltage on rear side of J3.202, pins 8 and 9
on PCB3, is less than or equal to 2.9 VDC.
4. If the voltage is low, verify correct wiring between chopper
temperature sensor and J3.202 pins 7 and 8.
5. If wiring is good and overtemp error does not clear after
30 minutes of the power supply idling with the fans
running, replace the chopper.
1. Verify that all chopper fans are operating properly.
Spinning fan blades should be difficult to see.
2. Blow dust out of system, especially from fans and heat
sink of chopper.
3. Verify that the voltage on rear side of J3.202, pins 11 and
12 on PCB3, is less than or equal to 2.9 VDC.
4. If the voltage is low, verify correct wiring between chopper
temperature sensor and J3.202 pins 10 and 11.
5. If wiring is good and overtemp error does not clear after
30 minutes of the power supply idling with the fans
running, replace the chopper.
See the chopper test later in this section.
Maintenance
5-17