WTC MedWeld 3005, Operator'S Manual

Page: 98 / 206

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• Function #39 (TEST FIRE nn% CURRENT) MUST appear
in the weld sequence.
• Function #91 must appear after the test fire function (#39)
in the weld sequence.
• Function #92 (FAULT IF TIPS NOT TOUCHING) cannot
appear in the weld sequence.
When it executes Function #39, the control monitors the
actual weld current. If the control detected more than 10 A.
primary current, it assumes that the electrode tips were
touching and generates a TIPS TOUCHING Fault.
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92 FAULT IF TIPS NOT TOUCHING
This function can generate a fault condition if the control
determines that the welding electrodes are NOT touching.
These conditions MUST be true when using this function:
• Function #39 (TEST FIRE nn% CURRENT) must appear
in the weld sequence.
• Function #92 must appear after the test fire function (#39)
in the weld sequence.
• Function #91 (FAULT IF TIPS TOUCHING) cannot
appear in the weld sequence.
When Function #39 executes, the actual weld current during
that one cycle weld is monitored. If less than 10 A. primary
current is detected, the control assumes that the electrode tips
were NOT touching. It generates a TIPS NOT TOUCHING
fault.
93 INITIAL PF LIMIT: HI=nn% LOW=nn%
This function is used to generate a fault condition if the initial
power factor read during the test fire function (#39) does not
fall within the high and low limits programmed in this
function.