Hypertherm XPR300 - Page 289

Diagnostics and Troubleshooting
8
XPR300 Instruction Manual 809480 289
655
Alert
Current (DC)
preflow
During Preflow State, a
chopper finds current.
1. Inspect the consumable parts for damage and
excess wear.
2. If any consumable part needs replacement,
refer to Install the consumables on page 133.
3. Examine the torch lead. Look for a short or open
line condition.
Shut down Start or set
process;
remote on-off
660
Error
Thermistor
Fault-Ind 1
The main control PCB finds a
shorted temperature sensor
in Inductor 1A.
Use a digital multimeter to measure the resistance
from the thermistor. Refer to How to measure
resistance from thermistors on page 345.
Shut down Remote on-off
661
Error
Thermistor
Fault-Ind 2
The main control PCB finds a
shorted temperature sensor
in Inductor 1B.
Shut down Remote on-off
662
Error
Thermistor
Fault-Ind 3
The main control PCB finds a
shorted temperature sensor
in Inductor 2A.
Use a digital multimeter to measure the resistance
from the thermistor. Refer to How to measure
resistance from thermistors on page 345.
Shut down Remote on-off
663
Error
Thermistor
Fault-Ind 4
The main control PCB finds a
shorted temperature sensor
in Inductor 2B.
Shut down Remote on-off
666
Error
Thermistor
Fault-Xfmr
The main control PCB finds a
shorted temperature sensor
in the transformer.
Use a digital multimeter to measure the resistance
from the thermistor. Refer to How to measure
resistance from thermistors on page 345.
Shut down Remote on-off
667
Error
Thermistor
Fault-Ch1
Chopper 1 finds a shorted
temperature sensor near the
insulated-gate bipolar
transistor (IGBT).
Ramp down Remote on-off
668
Error
Thermistor
Fault-Ch2
Chopper 2 finds a shorted
temperature sensor near the
IGBT.
Use a digital multimeter to measure the resistance
from the thermistor. Refer to How to measure
resistance from thermistors on page 345.
Ramp down Remote on-off
Diagnostic code
number and
category
Diagnostic code
name
Description Corrective action XPR action
Code cancels
with