Hypertherm powermax45 Service Manual

TroubleshooTing and sysTem TesTs
powermax 45 Service Manual 5-13
Problem This may mean Cause Solution
The power ON LED is
illuminated or is blinking
and the fault LED is
blinking.
A major fault has occurred
in the power supply.
•Any of the fan, solenoid
valve, control board, or
power board may be
faulty.
•The error LED on the
control board should be
flashing. The number of
times it flashes between
pauses indicates which
components to test. See
Control Board LEDs on
page 5-16.
The power ON LED is
illuminated and the fault
LED and the temperature
LED alternately flash when
the system is powered ON.
The system was powered
on while the plasma start
signal was being sent.
•The system was powered
on while the torch trigger
was being pulled or the
trigger was activated too
soon after the system was
powered on.
•The start circuit is stuck
closed.
•Release the torch trigger
and turn OFF the power
supply and then turn it ON
again to reset the unit.
Be sure to allow time for
the soft start circuit to be
satisfied.
•Perform Test 6 – plasma
start on page 5-26 to test
the start signal.
The power ON LED is
illuminated and no fault
LEDs are illuminated, but no
gas flows when the torch
trigger is pulled.
The start signal is not
reaching the control board.
•The torch or torch lead
may be damaged.
•The power board may be
faulty.
•The control board may be
faulty.
•Ensure that the gas is
connected (gas pressure
LED will illuminate
yellow after the torch is
activated).
•Inspect the torch and
torch lead for damage.
•Verify that the control
board start LED
illuminates when the
trigger is pulled. If it
does not, perform Test
6 – plasma start on page
5-26 to check the start
signal from the power
board.
Gas flows when the system
is powered ON.
The incoming gas pressure
is too high or the system is
in gas test mode.
•Verify that the mode
switch is not set to gas
test mode.
•The gas pressure from the
compressor or cylinder
may be too high.
•The gas solenoid valve
may be faulty.
•Check the gas supply to
make sure that it does not
exceed 9.3bar (135psi).
If necessary, reduce the
pressure.
•Perform Test 4 – solenoid
valve on page 5-24 to
verify that the gas solenoid
valve is functioning
correctly.
AC
AC
AC
AC

Hypertherm powermax45 Specifications

General

Brand	Hypertherm
Model	powermax45
Category	Welding System
Language	English