Canon GM-1000 ユーザーズマニュアル

 

CANON  Digital Galvano Scanner System  GM-1000 Series 
Users Manual 1.20 
 
 

68

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The analog monitor output is from the D/A converter of the controller. 

Since the output range of the D/A converter is from -3 to +3 V, output is repeated by the 

magnification setting if it exceeds this range. 

 

・

The relationship between encoder pulse and angle differs depending on the galvano motor. 

                360° = 1000 pulses × 8,192 divisions = 8,192,000 pulses 

        1° = 8,192,000 pulses / 360° = 22,756 pulses 

                      At the monitor output position (0.091 V/pulse), the analog monitor output changes: 

        1° = 22,756 × 0.091 = 2.071 V 

When the magnification is 1x, and there is a position change of 0° → 1°, analog output will 

change from 0V  → 2.071V. 

 

                E.g. GM-1015 , GM-1020 

                360° = 1500 pulses × 8,192 divisions = 12,288,000 pulses 

                1° = 12,288,000 pulses / 360 = 34,133 pulses 

                      At the monitor output position (0.091 V/pulse), the analog monitor output changes: 

        1° = 34,133×0.091 = 777 mV 

When the magnification is 1x, and there is a position change of 0° → 1°, analog output will 

change from 0V  → 777 mV. 

 

 

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Monitor Output Selection (A2, A8)         

Command ID = 40   

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Monitor Output Selection (A3, A9)        

Command ID = 41   

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Monitor Output Selection (A4, A10)       

Command ID = 42   

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Monitor Magnification Setting (A2, A8)       Command ID = 44   

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Monitor Magnification Setting (A3, A9)     

Command ID = 45   

・ 

Monitor Magnification Setting (A4, A10)     

Command ID = 46