Hypertherm powermax45 Service Manual

TroubleshooTing and sysTem TesTs
5-24 powermax 45 Service Manual
Test 4 – solenoid valve
If gas is not flowing properly, test the solenoid valve for proper operation.
1. There is an LED on the solenoid valve that illuminates red when the torch is fired or when the amperage control
knob is set to gas text mode. It stays illuminated until postflow stops. Turn the amperage knob to gas test and
verify that the LED illuminates.
2. Place a jumper from pin4 of J3 (J4 for 400V CE and 480V CSA power supplies) on the power board to ground.
You should hear the valve click.
3. If you do not hear the valve click or the LED does not illuminate and a voltage check on pin4 of J3 (or J4) reads
24VDC, replace the solenoid valve.
TP 19
W
-
+
-
+
TP 18
R
TP 17
B
192 VDC
192 VDC
Solenoid valve LED
J3 or J4
PE (ground)

Hypertherm powermax45 Specifications

General

Brand	Hypertherm
Model	powermax45
Category	Welding System
Language	English