Programming manual.
CNC 8070
6.
TECHNOLOGICAL FUNCTIONS
Spindle speed (S)
·110·
(REF: 1709)
6.3 Spindle speed (S)
The spindle speed is selected by program using the spindle name followed by the desired
speed. The speeds of all the spindles of the channel may be programmed in the same block.
See chapter "7 The spindle. Basic control.".
The programmed speed stays active until another value is programmed. On power-up, after
executing an M02 or M30, and after an emergency or reset, the spindles assume a ·0· speed.
The speed may be programmed in rpm or in m/min (feet/min), depending on whether G197
or G196 is active. The default units are rpm.
Spindle start and stop
Defining a speed does not imply starting the spindle. The startup is defined using the
following auxiliary functions.
M03 - Starts the spindle clockwise.
M04 - Starts the spindle counterclockwise.
M05 - Stops the spindle.
Maximum speed
The maximum turning speed in each range (gear) is limited by the machine manufacturer.
When programming a higher turning speed, the CNC limits its value to the maximum allowed
by the active range (gear). The same thing occurs when trying to exceed the maximum limits
using the "+" and "-" keys of the operator panel or doing it via PLC or by program.
Speed override
The programmed "S" speed may be varied between 50% and 120% using the "+" and "-"
of the operator panel or via PLC. However the maximum and minimum variation may be
different depending on how the machine manufacturer has set [A.M.P. "MINOVR" y
"MAXOVR"].
Likewise, the incremental step associated with the "+" and "-" keys of the Operator Panel
to change the programmed spindle speed "S" will be 10; but this value may be different
depending on the setting of axis machine parameter [P.P.E. "STEPOVR"].
During threading operations, the programmed speed cannot be overridden and it will be set
at 100% of the programmed "S" speed.
S1000
S1=500
S1100 S1=2000 S4=2345
To Next Page
Loading...
