beautypg.com

Troubleshooting guide, Troubleshooting guide -11, He troubleshooting guide – Hypertherm Powermax45 Service Manual User Manual

Page 87: Powermax

background image

TroubleshooTing and sysTem TesTs

powermax

45

Service Manual

5-11

Troubleshooting guide

See System tests on page 5-18 for detailed test procedures.

It is important to note, when troubleshooting a problem on the Powermax45, how the front panel LEDs operate. To help

diagnose transient problems, an illuminated or blinking LED, including the bottom bar on the gas pressure bar, may

continue to illuminate or blink for 10 to 20 seconds after the system is powered OFF. Once the system is powered ON,

the LED should not illuminate or blink if the fault has been cleared.

Also, note that there is no static gas pressure reading. So the gas pressure LEDs may not indicate a low pressure

situation if the gas was not connected when the system was powered ON. Attempting to fire the torch without the gas

connected will cause the bottom yellow gas pressure LED to blink.

Problem

This may mean

Cause

Solution

The ON/OFF power switch

is set to ON (I), but the

power ON LED is not

illuminated.

There is insufficient voltage

to the control circuits or

a short-circuited power

component.

• The system has no

incoming voltage or

an improper incoming

voltage.

• The power board is faulty.

• Check to see that the

system is plugged into

an appropriately-sized

circuit and that the circuit

breaker has not been

tripped.

• Perform Test 1 – voltage

input on page 5-18

to check the incoming

voltage and the power

switch.

The power ON LED is

illuminated, the fault LED is

illuminated, and the bottom

LED on the gas pressure

bar is illuminated yellow and

is blinking.

There is insufficient gas

pressure to the machine.

• There is no gas attached

to the system.

• The gas supply line has a

restriction or the air filter

element is dirty.

• The reading at the

pressure transducer

is below the minimum

acceptable gas pressure.

• Ensure that the gas supply

is connected correctly.

• Check the gas supply line

for restrictions or damage.

• Check the air filter

element and replace it if

necessary.

• Perform Test 9 – pressure

transducer on page 5-28

to verify that the pressure

transducer functions

correctly.

AC

This manual is related to the following products: