TOMATECH AUTOMATION
When executing S00, S1～S4 output are cancelled and only one of S1～S4 is valid at the
same time.
2.2.2 Spindle speed analog voltage control
Spindle speed is controlled by analog voltage when No.001 BIT4 is set to 1.
Command format: S □□□□
0000～9999 (the leading zero can be omitted.):Spindle speed
Dwell time Start to execute S command Start to execute the following word or block
Ⅰ Programming
analog voltage control
Command function: The spindle speed is defined, and the system outputs 0～10V analog
voltage to control spindle servo or converter to realize the stepless timing. S
command value is not reserved, and it is 0 after the system is switched on.
When the spindle speed analog voltage control is valid, there are 2 methods to input the
spindle speed: the spindle fixed speed is defined by S command( r/min), and is invariant
without changing S command value, which is called constant speed control(G97 modal);
other is the tangent speed of tool relative to the outer circle of workpiece defined by S
command, which is called constant surface speed control (G96 modal), and the spindle
speed is changed along with the absolute coordinates value of X absolute coordinates in
programming path when cutting feed is executed in the constant surface speed.
Please refer to Section 2.2.3.
The system can execute 4 gears spindle speed. Count the analog voltage value
corresponding to the specified speed according to setting value(corresponding to
No.037～No.040) of max. spindle speed (analog voltage is 10V)of current gear, and then
output to spindle servo or converter to ensure that the spindle actual speed and the
requirement are the same.
After the system is switched on, the analog output voltage is 0V. The analog output
voltage is reserved (except that the system is in cutting feed in the surface speed control
mode and the absolute value of X absolute coordinates is changed) after S command is
executed. The analog output voltage is 0V after S0 is executed. The analog output voltage
is reserved when the system resets and emergently stops.
Parameters relative to the analog voltage control of spindle speed:
System parameter No.021: offset value of output voltage with max. spindle speed (the
analog output voltage is 10V);
System parameter No.036: offset value of output voltage with spindle speed 0 (the analog
output voltage is 10V);
System parameter No.037～No.040: max. spindle speed (the analog output voltage is
10V) with spindle 1～4 gears(corresponding to M41～M44).
2.2.3 Constant surface speed control G96, constant rotational speed control G97
Command format: G96 S__; (S0000～S9999, the leading zero can be omitted.)
Command function: The constant surface speed control is valid, the cutting surface speed
is defined (m/min) and the constant rotational speed control is cancelled.
G96 is modal G code. If the current modal is G96, G96 cannot be input.
Command format: G97 S__; (S0000～S9999, the leading zero can be omitted.)
Command function: The constant surface speed control is cancelled, the constant
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