Specifications

76
Southwestern Industries, Inc.
TRAK LPM Programming, Safety, & Operating Manual
Position
or work piece. The position along the X axis may be changed using a
Service Code.
7
4
th
Axis
Auto Clamp
OFF
Turns off the auto clamp feature on 4
th
axis units that require air to run.
8
4
th
Axis
Auto Clamp
ON
Turns on the auto clamp feature on 4
th
axis units that require air to run.
The default if no AUX event is program is to auto clamp.
9
Cornering –
Blend or
Exact Stop
Allows the program to blend a corner or exact stop in the corner.
When you blend moves, some accuracy will be lost. This cornering
AUX really only applies or has an impact when S curves are turned on
in service code 508. See S curve section below.
Coolant/Air on and off is automatically programmed for tool changes.
The Pulse Indexer function is designed to operate with a standard indexer. Programming
a Pulse Indexer will cause the ProtoTRAK PMX CNC send a signal to the connected
indexer or rotary table and then wait for the return signal that the devise has finished its
programmed move. The ProtoTRAK PMX CNC then it will resume machining at the
next event.
S Curve Information – turned on and off with service code 508
1. S curves are utilized when your feedrate is greater than 40 ipm. For feedrates below
40 ipm, there is no value to S curves. The surface finish seen under a end mill is
generally improved when S curves are used.
2. In our AUX event, we have added a new prompt under 9 that gives the user the
choice to have the control perform corner blending (G64) or exact stop (G61). The
default is exact stop when S curve is turned on and this applies to feedrates that are
greater than 40 ipm. Please see the figure below for how the AUX event looks.
a. Exact stop means the control will get into exact position and there will be
minimal error. This may add some additional time to run a program versus if
blending is used or if S curves were turned off.
b. Corner blending will make the machine blend or round a corner. The machine
will not get into exact position and hence you will see some error when
machining. The error is dependent on the feedrate you are machining at. The
higher the feedrate, the more error you will see. With corner blending on, the
machine will not slow down as much in the corners and your cycle time will
be faster. Please note that cornering error will only show up at feedrates
above 40 ipm.
c. Please note that G61 exact stop and G64 corner blending are common G codes
found on many CNC controls and not unique to Southwestern Industries.
G64 is often labeled as G61 cancel versus the corner blending term we use but
it is in essence the same thing.