Maintenance
5-18 HPR400XD Auto Gas – 806160
Error code troubleshooting – error codes 076 to 101, 276 to 301
Error code
number
Name Description Corrective action
076
Primary
276
Secondary
Low current
on CS4
HPR400XD
Only
A current less than
10 amps has been
detected by
current sensor 4.
See the chopper test later in this section.
093
No coolant
flow
Coolant flow signal
was lost or never was
satisfied.
1. If this is a new system, follow start procedure.
2. Verify that the coolant filter is in good condition.
3. Perform coolant flow tests (Maintenance section).
4. Verify that the CNC drives the plasma start signal for at
least 10 seconds to allow the timed-out pump to turn on
again.
095
Primary
295
Secondary
High current
on CS4
HPR400XD
Only
A current greater
than 35 amps has
been detected by
current sensor 4.
See the chopper test later in this section.
098
Phase loss at
initialization
HPR400XD
HPR800XD
Only
The system detected
incoming line voltage
during power-up, before
the contactor was
energized.
1. Verify phase-to-phase voltage to power supply.
2. Disconnect power to power supply, remove cover on
contactor and inspect contacts for excessive wear.
3. Inspect power cord, contactor, and input to chopper for
loose connections.
4. Inspect phase loss fuses on Power Distribution board.
Replace board if fuses are blown.
5. Perform phase loss test (see Maintenance section).
099
Primary
299
Secondary
Chopper 1
overtemp at
power-up
Chopper 1 is indicating
an overtemp at power-up.
1. Verify that the temperature sensor for the chopper has not
been bypassed or that the wires to the temperature switch
are shorted out in the harness, or that the sensor is open.
2. If no jumper is present, the chopper is overheated and
needs time to cool to 83° C (181.4° F).
100
Primary
300
Secondary
Chopper 2
overtemp at
power-up
HPR260XD
HPR400XD
Only
Chopper 2 is indicating
an overtemp at power-up.
1. Verify that the temperature sensor for the chopper has not
been bypassed or that the wires to the temperature switch
are shorted out in the harness, or that the sensor is open.
2. If no jumper is present, the chopper is overheated and
needs time to cool to 83° C (181.4° F).
101
Primary
301
Secondary
Magnetics
overtemp at
power-up
Main transformer is
indicating an overtemp at
power-up.
1. Verify that the transformer temperature sensor has not been
bypassed or the wires to the temperature sensor are not
shorted out in the harness.
2. Verify that the sensor is not open or shorted, if it is not
open or shorted, the main transformer is overheated and
needs time to cool to 150° C (302° F).
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