Technosoft iPOS4808 BX-CAN, Техническое описание

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Technosoft 2015 99 iPOS4808 BX-CAN Technical Reference
6.11.4. 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
×
× µ
π ×
=
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.
6.11.5. 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.
6.11.6. 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
×
×
π ×
=
4
2
where:
No_encoder_lines – is the motor encoder number of lines per revolution
6.11.7. 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:
] IU [ Position _ Motor
ion Interpolat periods _ Enc
] SI [ Position _ Motor
×
× ×
π ×
=
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