Technosoft IBL2403-CAN - DC Brushed Motor with Quadrature Encoder on Load and Tacho on Motor; Stepper Motor Open-Loop Control. no Feedback Device

© Technosoft 2007 63 IBL2403 Technical Reference
Tr – transmission ratio between the motor displacement in SI units and load displacement in SI
units
Pole_Pitch – is the magnetic pole pitch NN (distance expressed in [m])
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 ×
×
π×
=
4
2
where:
No_encoder_lines – is the encoder number of lines per revolution
6.1.4. Stepper 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
Trsteps_Nosteps_No
]SI[Position_Load ×
××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.
Tr – transmission ratio between the motor displacement in SI units and load displacement in SI
units
Stepper 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
25
is:
]IU[Position_Motor
Trlines_encoder_No
]SI[Position_Load ×
××
π×
=
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
25
SI units for position are [rad] for a rotary movement , [m] for a linear movement