Hypertherm POWERMAX 800 User Manual

MAINTENANCE
3-20
Service Manual
3-96
POWER ON
LED On ?
At control board connector JP2, check
terminals 1 & 2 for 24VAC and terminals
6 & 7 for 27VAC.
Voltages
correct?
To
page
3-21
Replace control boardYes
Meter
indicates
0 ohms ?
From
page 3-19
No
Fan M1 On ?
No
Fan M1 On
?
Yes
Unplug power cord. Measure resistance
of fan M1
208/240/480V units- approx. 190 ohms
200/230/400V units- approx. 130 ohms
No
Resistance
correct ?
Check connectors &
wires between fan and
control board
connector JP2 pins 12
& 14.
Replace M1 .
No
Yes
Check wiring between T1 and
control board. If wiring is OK,
replace T1.
Measure input line voltage at
power switch S1:
Single-phase units - between P1 & P2.
Three-phase units - between P1 & P2,
P2 & P3 and P1 & P3.
No
Voltage
correct ?
Check main
power coming
into power
supply.
No
Measure input line voltage at control
board connector
JP2 pins 1 & 2 for 24VAC;
JP2 pins 6 & 7 for 27VAC;
JP2 pins 9 & 11 for 120VAC.
Yes
Voltages
correct ?
Replace control board
Yes
Unplug power cord.
Measure resistances of
fuses F1 & F2
Replace F1
and/or F2.
Check connectors & wires
between fuses and T1.
Repair as needed.
Yes
Yes
No
No
No
Wires and
connectors
OK?
Yes
Yes
Repair or replace
as needed
No

Hypertherm POWERMAX 800 Specifications

General

Brand	Hypertherm
Model	POWERMAX 800
Category	Cutter
Language	English