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Technical Manual TNC 360 - heidenhain - DR. JOHANNES ...

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4.1 Analog output of the spindle speed<br />

For analog output of the spindle speed (S analog) spindle speeds can be programmed from 0 to 99<br />

999.999 rpm. The programmed spindle speed is available as an analog DC voltage of 0 to 10 V on<br />

connector X8 of the logic unit. In addition, gear change signals can be assigned to any PLC outputs<br />

by the PLC program.<br />

For S analog the value 991 must be entered in the machine parameter MP3020!<br />

If the control is operating with S analog, marker M2042 is set. The programmed spindle speed is<br />

stored in D356 in 1/1 000 [rpm]. The nominal spindle speed is stored in Word W320 in rpm. The<br />

actual spindle speed is stored in Word W322 in rpm.<br />

Marker, Function Set Reset<br />

Word<br />

M2042 Analog output of the spindle speed NC NC<br />

D356 Programmed spindle speed NC NC<br />

W320 Nominal spindle speed NC NC<br />

W322 Actual spindle speed NC NC<br />

4.1.1 Direction of spindle rotation<br />

The polarity of the S-analog voltage is defined by machine parameter MP3130. The count direction<br />

of the measuring system signals for the spindle is defined in MP3140. The direction of spindle<br />

rotation can be reversed by setting marker M2489, i.e. the polarity of the analog voltage is inverted.<br />

The S-analog voltage appears at the output as soon as the marker M2485 for M03 or M2486 for<br />

M04 is set. At the same time the miscellaneous function is displayed in the status window of the<br />

control (see section "Display and operation"). Marker M2487 turns off the analog voltage and<br />

displays M05.<br />

If more than one of the markers M2485 to M2487 is set at the same time, this will release the<br />

flashing error message<br />

Error in PLC program 1Q<br />

Marker M2608 can be used to remove the spindle-enable, at the same time M03, M04 or M05 is<br />

displayed inversely. The S-analog voltage will then go to 0 V.<br />

MP3130 Polarity of the S-analog voltage<br />

Input value: 0 to 3<br />

0 =M03 positive voltage<br />

M04 negative voltage<br />

1 =M03 negative voltage<br />

M04 positive voltage<br />

2 =M03 and M04 positive voltage<br />

3 =M03 and M04 negative voltage<br />

4-80 <strong>TNC</strong> <strong>360</strong> 4 Spindle 8/95

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