Hypertherm HSD130 HySpeed Plasma - Manual (Page 158)

MAINTENANCE
5-12 HySpeed HSD130 RHF Instruction Manual
Error code troubleshooting (6 of 8)
Error code
number
Name Description Corrective action
093
No coolant
flow
Coolant flow signal was
lost or was never satisfied.
Coolant flow is < 2 lpm
(0.6 gpm)
1. If this is a new system, follow start procedure.
2. Verify that the coolant filter is in good condition.
3. Perform coolant flow test procedure (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.
098
Phase-loss at
power-up
Voltage detected on the
phase-loss circuit during
the chopper test at power-
up.
1. Verify phase-to-phase voltage to the power supply.
2. Verify that the fuses on PCB3 (F5, F6, and F7) are good.
3. Verify the voltage from F5 to F6, F5 to F7, and F6 to F7. All
3 readings should be about 311 VAC. If the voltage
readings are correct, U5 should be active and J8, pins 1
and 2 should be closed. If these conditions are not met,
replace PCB3.
099
Chopper over
temp at
power-up
Chopper is indicating an
over temp at power-up.
1. Verify that the temperature sensor for the chopper has not
been jumped out or the wires to the temp switch shorted
out in the harness.
2. If no jumper is present, the chopper is overheated and
needs time to cool to 83° C (181.4° F).
101
Magnetics
over temp at
power-up
The main transformer or
inductors are indicating an
over temp at power-up.
1. Verify that the transformer temperature sensor for the
chopper has not been jumped out or the wires to the
temperature sensor are not shorted out in the harness.
2. If not, the main transformer is overheated and needs time
to cool to 150° C (302° F).
102
Output
current at
power-up
Chopper current signal
from CS1 is active
(greater than 5 amps) at
power-up. 1. Verify proper electrical connections to chopper current
sensor (CS1) and to J4.2 on PCB4.
2. Verify that the contactor is not stuck in the closed (on)
position.
103
High current
on CS1
A Current > 35 Amps has
been detected on chopper
channel “A” by
current sensor 1 during
the chopper test at
power-up.
1. Verify that there is not a short circuit between the negative
lead and the work lead.
2. Measure voltage across the current sensor (CS1)
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.