MK Products Advanced Color Logic - Manual (Page 20)

Advanced Color Logic Owner’s Manual - Page 13
parameters; high and low values for current, voltage, and motor speed
(See Section G, page 46).
2.9.3.1 A/C Procedure
If checked, this option enables A/C welding using A/C welding Str./Rev.
procedure parameters and control of external VPAC unit.
2.9.3.2 Flying Start Pre-Motor Run Time
This is the amount of time the rotor will rotate prior to striking the arc,
also known as a “Flying Start”. This time value cannot be longer than
the Pre-Purge time, and the ACL program will prevent a higher value
from being entered.
A positive value will cause the rotor to slope up to the Pre-Motor Speed,
while a negative value will delay the rotor by the time value and then
cause it to proceed at the Pre-Motor Speed. Valid values are from 0.00
to 99.00 seconds.
2.9.3.3 Flying Start Pre-Motor Run Speed
This speed is what the rotor is to run at before striking the arc. It is used
in conjunction with the Pre-Motor Run Time. If the Pre-Motor Run Time
is zero the Pre-Motor Run Speed is not available.
2.9.3.4 Tacks Number
This value determines how many tacks are required around the
circumference of the item to be welded. Multiple tacks will occur at
opposing points with the last tack opposite Home or the programmed
Start Position. Valid values are from 0 to 8 tacks.
2.9.3.5 Tack Time
This value defines the duration of each tack. Valid values are from
0.5 to 5.0 seconds. If no tacks are requested the tack time will not be
available.
2.9.3.6 Tack Current
This value defines the heat intensity of the tack. Valid values are from
1.0 amp to the maximum amp value in the procedure. If no tacks are
requested the tack current will not be available.
2.9.3.7 Weld Start Position & Start Position
Start Position degree setting is only available if the Weld Start Position
option is checked. Otherwise, this value is ignored.
This value defines the position, in degrees clockwise (normal forward
rotating direction of the rotor) from the Home position, that the procedure
will start welding. This assumes the weldhead is held in the vertical
position with the rotor opening at the top and the tungsten at about the
three o’clock position.
If the welding is to start at Home, the Start Position value should be
zero. If the welding is to start at the bottom of the weldhead, a value of
ninety should be entered.
When Start Position is enabled, the ACL program requests an additional
Head angle parameter on the MAIN SCREEN. This additional
parameter, “Weldhead Angle”, is the degree angle of the weldhead from
the vertical.
When the procedure is started, following the Pre-Purge, the rotor will
move to the specified Start Position plus the added Weldhead Angle
value. When used with the tacking feature, the final tack will occur
opposite the Start Position, the added Weldhead Angle simply adjusts
for the orientation of the weldhead position
This feature is available only if the Start Position option has been
enabled.