Hypertherm HSD130 HySpeed Plasma - Manual (Page 157)

MAINTENANCE
HySpeed HSD130 RHF Instruction Manual 5-11
Error code troubleshooting (5 of 8)
Error code
number
Name Description Corrective action
065
Chopper over
temp
The chopper has
overheated. The
temperature is > 85° C
(185° F).
1. Verify that both chopper fans are operating properly.
Spinning fan blades should be difficult to see.
2. Blow dust out of the system, especially from fans and the
chopper’s heat sink.
3. Verify that the voltage on the back side of J3.19, pins 1
and 2 on PCB3, is less than or equal to 2.9 VDC.
4. If the voltage is low, verify correct wiring between chopper
temp sensor and J3.19 pins 1 and 2.
5. If wiring is good and over temp error does not clear after
30 minutes, replace chopper.
6. If voltage is higher than 2.9 VDC and over temp LED does
not clear after 30 minutes, replace PCB3.
067
Magnetics
over temp
The power transformer or
inductors have overheated.
The temperature is
> 150° C (302° F).
1. Verify that the large fan is operating properly. Spinning fan
blades should be difficult to see.
2. Blow dust out of system, especially from fans and large
power transformer.
3. Verify that the voltage on the back side of J3.20 pins 3 and
4, is equal to or less than 3.2 VDC.
4. If voltage is low, inspect wiring between the transformer's
temp sensor and J3.20 pins 3 and 4. Look for short
circuits to wires or ground.
5. If wiring is good, the transformer has overheated.
6. If voltage is higher than 3.2 V and over temp error does not
clear after 30 minutes, replace PCB3.
071
Coolant over
temp
Torch coolant has
overheated. The
temperature is > 70° C
(158° F).
1. Verify that all fans in the coolant heat exchanger are
running.
2. Blow dust out of the system, especially from the heat
exchanger.
3. Verify that the voltage on the back side of J3.20 pins 1 and
2, is equal to or lower than 2.8 VDC.
4. If voltage is low, inspect wiring between coolant sensor
and J3.20, pins 1 and 2, for short circuits to wires or
ground.
5. If wiring is good, the coolant has overheated; let system
stand for 30 minutes to cool.
6. If voltage is higher than 2.8 VDC and the over temp error
does not clear after 30 minutes, replace the temperature
switch.
075
Low current
on CS2
A Current < 10 Amps has
been detected on chopper
channel 2 by current
sensor 2 during the
chopper test at power-up.
1. Measure voltage across the current sensor (CS2).
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.