WTC Technitron T2050 - Configuration Item Definitions: Low Current Limit & Stepper Count

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?VV3iS If Off time is 0, the SV VALVE outputs are turned off and the
sequence ends. After the valves are off, the WCOMP output is
energized for the time programmed in WELD COMPLETE. If the
OFF Time is greater than 0, the control is in Repeat mode. In
Repeat mode, OFF Time turns off all VALVE outputs and pauses
for the number of line cycles entered. When the delay is over, if
the PILOT input is still on, the sequence will repeat starting with
the SQUEEZE instruction. WELD COMPLETE will not occur in
Repeat mode. Use Repeat mode in hand gun operation where the
operator may pull and hold the weld gun trigger, moving the gun
around as the electrodes automatically open, re-close and weld.
The range of this instruction is 0 – 99 cycles.
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<_g3ebbU^d<Y]Yd This is a programmable low current limit that is compared to the
WELD function current (and COOL, if programmed) after a weld
is made. If the Weld current is less than the low limit, then the
LOW CURRENT fault is set. Low Current Limits are separately
programmable in each weld schedule. The data range is 0 – 65.5
kA. To turn off Low Current Limit, set the value to 0. Low
Current Limit defaults to 0.
CdU``Ub3_e^d! Four programmable 2-step stepper programs are available. One
program is assigned for each of the 4 valves. Stepper Count 1 is
the Step 1 stepper count for the Valve selected in the Sequence
column. If operating binary valves (SW1–7 closed), there is only
one stepper, the same stepper for all valves. The count range is 0 –
65.5 k welds. The display starts at 0 – 999, then shifts to 1.0 –
65.5K.
ALL 4 stepper programs are reset when the FAULT RESET and
PROGRAM MODE buttons are pressed at the same time. If
running V1.00A firmware, SW1–3 is closed and PS/SS is true.
Powering down the control resets all steppers. When using
steppers, either do not turn off the control, or change your tips
when the power is cycled.
CdU``Ub3_e^d! This is the Step 1 stepper count for the valve selected in the
Sequence column. To disable the steppers, program 0 in Stepper
Count 1 and Stepper Count 2.
9^SbUQcU! Increase 1 is the percentage that the current will increase over the
course of Stepper Count 1. The range for this instruction is 80% –
199%.