Technosoft iPOS4808 MX Series, Техническое описание

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Technosoft 2014 93 iPOS4808 MX Technical Reference
where:
No_encoder_lines
–
is the rotary encoder number of lines per revolution
Tr
–
transmission ratio between the motor displacement in SI units and load displacement in SI
units
6.1.6. Brushless motor with sine/cosine encoder on motor
The internal position units are interpolated encoder counts. The correspondence with the load
position in SI units is:
For rotary motors:
] IU [ Position _ Motor
Tr ion Interpolat periods _ Enc
] SI [ Position _ Load

  
 

4
2
For linear motors:
] IU [ Position _ Motor
Tr ion Interpolat
accuracy _ Encoder
] SI [ Position _ Load



where:
Enc_periods
–
is the rotary encoder number of sine/cosine periods or lines per revolution
Interpolation
–
is the interpolation level inside an encoder period. Its a number power of 2
between 1 an 256. 1 means no interpolation
Encoder_accuracy
–
is the linear encoder accuracy in [m] for one sine/cosine period
Tr
–
transmission ratio between the motor displacement in SI units and load displacement
in SI units
6.2. Speed units
The internal speed units are internal position units / (slow loop sampling period) i.e. the position
variation over one slow loop sampling period
6.2.1. Brushless / DC brushed motor with quadrature encoder on motor
The internal speed units are encoder counts / (slow loop sampling period). The correspondence
with the load
speed in SI units is:
] IU [ Speed _ Motor
T Tr lines _ encoder _ No
] SI [ Speed _ Load

  
 

4
2
where:
No_encoder_lines
–
is the rotary encoder number of lines per revolution
Tr
–
transmission ratio between the motor displacement in SI units and load displacement in SI
units
T
– is the slow loop sampling period expressed in [s]. You can read this value in the “Advanced”
dialogue, which can be opened from the “Drive Setup”