Installation manual
CNC 8035
5.
CONCEPTS
feedback system
(SOFT M: V15.3X)
(S
OFT T: V16.3X)
·202·
Example 8:
Resolution in "degrees" with sinusoidal encoder
We would like to obtain a 0.001º resolution by using a 3600 pulse/rev sinusoidal encoder.
We must calculate the multiplying factor "SINMAGNI" to be applied by the CNC to the pulses
provided by the encoder in order to obtain the desired resolution.
SINMAGNI = degrees per turn / (Nr. of pulses x Resolution)
SINMAGNI = 360 / (3600 x 0.001) = 100
Therefore:
Although the CNC accepts a maximum squarewave frequency of 250 kHz, when using Fagor
sinusoidal rotary encoders, the output frequency is limited to 200 kHz; thus, the maximum possible
feedrate (F) will be:
Max. feedrate = (200,000 pulses/sec) / (3.600 pulses/turn)
Max. feedrate =55,5556 turns/sec = 3333,33 rpm
INCHES = 0 PITCH=360.0000 NPULSES = 3600 SINMAGNI=100
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