Technosoft iPOS360x MX, Technical Reference, Page: 110 / 116

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Technosoft 2013 98 iPOS360x MX Technical Reference
] IU [ Position _ Motor
ion Interpolat periods _ Enc
] SI [ Position _ Motor

 
 

4
2
For linear motors:
] IU [ Position _ Motor
ion Interpolat
accuracy _ Encoder
] SI [ Position _ Motor
 
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
6.12. Motor speed units
6.12.1. Brushless / DC brushed motor with quadrature encoder on motor
The internal motor speed units are encoder counts / (slow loop sampling period). The
correspondence with the motor
speed in SI units is:
For rotary motors:
] IU [ Speed _ Motor
T lines _ encoder _ No
] SI [ Speed _ Motor

 
 

4
2
where:
No_encoder_lines
–
is the rotary encoder number of lines per revolution
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”
6.12.2. Brushless motor with linear Hall signals
The internal motor speed units are counts / (slow loop sampling period). The motor is rotary. The
position resolution i.e. number of counts per revolution is programmable as a power of 2 between
512 and 8192. By default it is set at 2048 counts per turn. The correspondence with the motor speed
in SI units is:
For rotary motors:
] IU [ Speed _ Motor
T resolution
] SI [ Speed _ Motor


 

2