Technosoft iPOS360x MX, Technical Reference, Page: 109 / 116

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Technosoft 2013 97 iPOS360x MX Technical Reference
where:
resolution
–
is the motor position resolution
Pole_Pitch
–
is the magnetic pole pitch NN (distance expressed in [m])
6.11.3. Step motor open-loop control. No feedback device
The internal motor position units are motor µsteps. The correspondence with the motor position in
SI units
1
is:
] IU [ Position _ Motor
steps _ No steps _ No
] SI [ Position _ Motor

 
 

2
where:
No_steps
–
is the number of motor steps per revolution
No_µsteps
– is the number of microsteps per step. You can read/change this value in the “Drive
Setup” dialogue from EasySetUp.
6.11.4. Step motor open-loop control. Incremental encoder on load
In open-loop control configurations with incremental encoder on load, the motor position is not
computed.
6.11.5. Step motor closed-loop control. Incremental encoder on motor
The internal motor position units are motor encoder counts. The correspondence with the motor
position in SI units is:
] IU [ Position _ Motor
lines _ encoder _ No
] SI [ Position _ Motor


 

4
2
where:
No_encoder_lines
–
is the motor encoder number of lines per revolution
6.11.6. Brushless motor with sine/cosine encoder on motor
The internal motor position units are interpolated encoder counts. The correspondence with the
motor position in SI units is:
For rotary motors: