Hypertherm POWERMAX 800 - MAINTENANCE; Three-Phase Resistance Check (Continued)

MAINTENANCE
3-12
Service Manual
Indicates
low ohms or
short
?
Isolate and check
control transformer T1,
power switch S1,
input filter MOV1,
capacitor C1,
and associated wiring for shorts.
Repair problem and repeat check.
Isolate and check control transformer T1,
power switch S1, input filter MOV1,
capacitors C1, C2 and C3,
contactor CR1 and all associated wiring
for shorts.
Repair problem and repeat check.
From
page 3-11
L
Indicates
low ohms or short
?
Indicates
high ohms or
infinity ?
No
To
page 3-11
Three-Phase
Check # 1
From
page 3-11
R
No
No
Yes
To
page 3-13
Check # 2
No
Yes
Isolate and check
control transformer T1,
power switch S1,
fuses F1 and F2,
and associated wiring for opens.
Repair problem and repeat check.
Yes