Maintenance and Troubleshooting
ProLine 2200 User’s Manual REV N
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5-9
Troubleshooting Using the Microprocessor Error LED
If all of the status LED’s are illuminated but the ProLine system still has a
problem, remove the front panel of the power supply to gain access to the
microprocessor control board. The power supply microprocessor board displays
an error code by blinking LED22 on and off to indicate that an error has occurred.
The number of blinks can be counted to determine which error has occurred. The
following chart lists the errors and the corresponding number of blinks.
LED22 Number of Blinks
Error
1
No transferred arc (TAC) established
2
TAC lost before current slope up
3
TAC lost during current slope up
4
TAC lost while cutting
5
TAC lost during current slope down
6
Start signal applied prematurely or
while Gas Test/Run switch is in the
Run position
7
Start signal removed prematurely
8
Output voltage below 60V
9
Output voltage above 210V
10
Invalid current set point
11
Current feedback circuit open
12
TAC not established within 2 seconds
13
IHS or arc hold timed out
14
Pilot arc not established
15
Low current during cut
16
TAC sensed when start signal applied
17
Faulty AC phase
18
Low torch coolant flow
19
Gas console error
20
RHF door switch open
21
Low torch coolant level
22
High torch coolant temperature
23
Main contactor shorted
24
N/A
25
Defective Flow Switch
