402
OPTIONS
96-8000
June 1999
11.9 PROGRAMMABLE COOLANT SPIGOT
The optional programmable coolant spigot allows the user to direct the coolant stream to the most optimum
location in order to flush out chips from the cutting area. The direction of the coolant can be changed by the
CNC program.
OPERATING T HE C OOLANT S PIGOT
When the spigot is enabled it will search for home if it ever loses position. If after 3 contiguous searches for
home the spigot has not found home, then Alarm, 193 COOLANT SPIGOT FAILURE, is generated.
OFFSET D ISPLAY W ITH S PIGOT E NABLE
When the spigot is enabled, an additional field can be accessed on the tool offset display. The left column
indicates CLNT POS for coolant position. By default this column has all zeros for the coolant position. If the
position is zero, then the spigot will not be moved when the H code for that tool offset is in effect and an M08 is
encountered in the program. If a value is placed into the field, then the spigot will be moved to that value if the
corresponding H code is in effect and M08 is executed.
SPIGOT P ROGRAM C OMMANDS
There are two ways that the spigot can be moved under program control. The first, as just discussed, is by
entering positional values into the CLNT POS fields on the tool offset display page. Having positional values
entered into the CLNT POS field does not mean that the spigot will move. Only when the M08 command is
executed and the current H code has a value in its CLNT POS field, will the spigot move to the designated
position.
The second method of moving the spigot is by programming M34 or M35.
M34 moves the spigot in a positive direction. If the spigot is at the end of travel then no spigot movement
occurs. For example, if the current spigot position is at 8 and M34 is executed, then the spigot will move to
position 9. On a vertical mill this would lower the coolant stream.
M35 moves the spigot in a negative direction. If the spigot is at home position then no spigot movement occurs.
For example, if the current spigot position is at 8 and M35 is executed, then the spigot will move to position 7.
On a vertical mill this would raise the coolant stream.
It is important to note that each programming method requires the operator to specifically program the spigot in
reference to the particular tool being used, while also taking into consideration the tool length, width and size of
the part.
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