Technosoft iPOS4808 MX Series, Technical Reference

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Technosoft 2014 92 iPOS4808 MX Technical Reference
6.1.3. DC brushed motor with quadrature encoder on load and tacho on motor
The internal position units are encoder counts. The motor is rotary and the transmission is rotary-
to-rotary. The correspondence with the load position in SI units is:
] IU [ Position _ Load
lines _ encoder _ No
] rad [ Position _ Load


 

4
2
where:
No_encoder_lines
–
is the encoder number of lines per revolution
6.1.4. Step motor open-loop control. No feedback device
The internal position units are motor µsteps. The correspondence with the load position in SI
units is:
] IU [ Position _ Motor
Tr steps _ No steps _ No
] SI [ Position _ Load

  
 

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.
Tr
–
transmission ratio between the motor displacement in SI units and load displacement in SI
units
Step motor closed-loop control. Incremental encoder on motor
The internal position units are motor encoder counts. The correspondence with the load position
in SI units
1
is:
] IU [ Position _ Motor
Tr lines _ encoder _ No
] SI [ Position _ Load

 
 

4
2
where:
No_encoder_lines
–
is the motor encoder number of lines per revolution
Tr
–
transmission ratio between the motor displacement in SI units and load displacement in SI
units
6.1.5. Step motor open-loop control. Incremental encoder on load
The internal position units are load encoder counts. The transmission is rotary-to-rotary. The
correspondence with the load position in SI units is:
] IU [ Position _ Load
lines _ encoder _ No
] SI [ Position _ Load


 

4
2
1
SI units for position are [rad] for a rotary movement , [m] for a linear movement