WTC MedWeld 3005, Operator'S Manual

Page: 99 / 206

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The following conditions must be true when using this
function:
• Function #39 must appear in the weld schedule.
• This must appear after the test fire function (#39) in the
weld schedule.
If the power factor read during the test fire was not within
the range programmed, the control generates an INITIAL P.F.
OUT OF RANGE fault.
98 GOTO SEQ#mm IF CURRENT LESS THAN nnnn0
(mm = 1-99)
This function determines if the current provided during the
weld portion of the schedule will be sufficient to make a good
weld.
These conditions must be true when using this function:
• Function #39 must appear in the weld schedule and
• This function must appear after the test fire function (#39)
in the weld schedule.
>?D5*
Function #98 may appear in a schedule more than once, to allow setting-
up for different welding requirements.
An example appears in the following schedule of functions.
(This is NOT a recommended weld schedule. Your application
requirements may vary.)
START OF SCHEDULE #O1
54
TURN ON VALVE #1
01 SQUEEZE 15 CYCLES
39 TEST FIRE 25% CURRENT
98 GOTO SEQ#02 IF CURRENT LESS THAN 02500
98 GOTO SEQ#03 IF CURRENT LESS THAN 03500
30 WELD 08 CY. 04000 AMPS
03 HOLD 02 CYCLES
55 TURN OFF VALVE #1
03 HOLD 10 CYCLES
END OF SCHEDULE #01
When Function #39 executes, if the current detected is less
then the value programmed, the control will jump to the
GOTO schedule number to complete that weld schedule.
(The control will not return to complete the original weld
schedule.)