Tweco A40-A60 CutMaster - Manual (Page 67)

CUTMASTER A40, A60
Manual 0-5120 SERVICE 5-3
5.04 Fault Indicator
At initial power up, two lights will temporarily illu-
minate for 2-3 seconds to show the version of software
used.
To determine the first digit, count the function indica-
tors left to right, 1 through 5. To determine the second
digit count the pressure indicators, reading from bot-
tom to top, 0 through 7. In the example below the
Temp indicator and 75 psi indicators are on indicating
the version would be 2.3.
A
+
PSI BAR
MAX MAX
MIN MIN
!
1 2 3 4
Art# A-07988
MIN MAX
0
1
2
3
4
5
6
7
5
When the
!
"Fault" indicator is on or blinking it
will be accompanied by one of the pressure indi-
cator lights depending on what the Fault is. Only
one of these faults will be displayed at one time.
If more than one fault exists, when the first fault
is corrected and cleared, the next fault will then be
displayed. It is possible to have a fault indicated in
the function indicators and another fault indictated
in the pressure indicators. The following table
shows each of the Faults possible.
Pressure
Indicator
Fault
Max Over Pressure
90 Internal Error
85 Shorted Torch
80 Consumables Missing
75 Start Error
70 Parts in Place
65 Input Power
Min Under Pressure
NOTE
Fault explantions are covered in the following
tables.
Explanation of Faults
" UNDER PRESSURE: Indicates that operating
pressure is set too low and power supply out-
put power will be disabled.
INPUT POWER: Indicates primary line voltage is
outside the operating limits of the power sup-
ply as selected by the setting of INPUT VOLT-
AGE SELECTION SWITCH at the rear of the
unit. Low is 208/230 VAC and high is 460 VAC.
S
LO
HI
Art # A-08316
PART IN PLACE: Indicates that the shield cup is
not properly installed or tightened.
START ERROR: Indicates that the START SIGNAL
was active (ie. Torch Trigger depressed, hand
held pendant switch on or CNC signal for torch
on) during one of three conditions:
1) During initial power up when ON/OFF
switch is turned to ON position
2) When fault which had been disabling the
system is cleared.
3) When the FUNCTION CONTROL SWITCH
Mode is moved from SET position to any of
the other three (3) modes of operation.
CONSUMABLES MISSING: Indicates that the
electrode, start cartridge or tip is missing or
excessively worn.
SHORTED TORCH: Indicates the torch or lead
has a shorted condition between positive and
negative leads.
INTERNAL ERROR: Indicates a microprocessor
error.
OVER PRESSURE: Indicates that operating pres-
sure is set too high. The Error Indicator will
not flash when the pressure is above 95 PSI.
This LED will remain on and the system will
operate but pilot starting and cut performance
may be affected.
NOTE
The cooling fans will turn on as soon as the unit
is turned on. After the unit is idle for ten (10)
minutes the fans will turn off. The fans will
come back on as soon as the torch switch (Start
Signal) is activated or if the unit is turned off,
then turned on again. If an over temperature
condition occurs, the fans will continue to run
while the condition exists and for a ten (10)
minute period once the condition is cleared.