Tweco HMC-410 - Manual (Page 45)

HMC-410
July 27, 2005 4-3
Software
Dash
Display Feature Description Settings Number
ADJ Trim Enable This setting controls the ability of a user to change his weld
parameters. This capability can be turned OFF, so that the
user may not change any programmed data without the
ON, OFF -3
keyswitch in the PROGRAM position. If a number is entered
into the screen, that number is the +/-%from the programmed
data (for wire feed speed and voltage only). Any changes
OFF, 5 – 6+
made will stay until the power is turned off. The data will then 100,
return to the data last entered when the keyswitch was last in FUL
the PROGRAM position. Also, this setting may be set to full
scale (FUL), which allows the users to change programmed
data (for wire feed speed and voltage only) to any allowable
value. This data will also stay until the unit is turned off.
AS Adjustment This setting may be ALL or PAR. If ALL, then user may trim ALL, 19+
Select adjust any voltage or wire feed speed parameter. If PAR (for PAR
partial), then a user may only trim adjust voltage or wire feed
speed for the weld segments.
SEA Synergic Error NOTE: Use the synergic settings only with the CC mode pulse ON, OFF 22+
Accumulator welding. Contact the factory for more information.
This softswitch allows the error conditions to be saved
between arcs when ON. This means that if a condition
changes over time, the regulator will compensate based on
the accumulation of error from past welds as well as the
current weld. OFF may be more appropriate if the issues
causing the error are more part to part variation; then the
compensation will start from the same point with each new
weld.
SIG Synergic This softswitch is a gain term which controls how responsive OFF, 1 to 22+
Integral Gain the synergic compensation is to accumulated error 255
(accumulated from the start of the weld if SEA is OFF, or from
all of the welds since the machine was turned on if SEA is ON).
This term is what will make the long term error approach zero,
i.e. eventually the system will get to the specified point (arc
voltage in this case). If this number is high, the compensated
wire feed speed will tend to hunt (or oscillate), but will get to
the target value most quickly. The lower the number, the
longer it will take to zero in on the target, but will be more
steady.
SPG Synergic NOTE: Use the synergic settings only with the CC mode pulse OFF, 1 to 22+
Proportional welding. Contact the factory for more information. 255
Gain This softswitch is a gain term which controls how responsive
the synergic compensation is to instantaneous error (how far
the actual voltage is from the target voltage). This type of
control needs some error in order to compensate, so if this
were the only gain term used, the feed-system would never
be able to completely eliminate error. This term does have
less tendency to hunt (oscillate) then the Integral control, but
still can for very high settings.