Technosoft IBL2403-CAN - Stepper Motor Open-Loop Control. no Feedback Device or Incremental Encoder on Load

© Technosoft 2007 76 IBL2403 Technical Reference
where:
resolution – is the motor position resolution
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”
Pole_Pitch – is the magnetic pole pitch NN (distance expressed in [m])
6.13.3. DC brushed motor with quadrature encoder on load and tacho on motor
The internal motor speed units are A/D converter bits. The correspondence with the motor speed
in SI units
32
is:
]IU[Speed_Motor
gain_Tacho
Range_Input_uelogAna
]SI[Speed_Motor ×
×
=
4096
where:
Analogue_Input_Range – is the range of the drive analogue input for feedback, expressed in [V].
You can read this value in the “Drive Info” dialogue, which can be opened from the “Drive Setup”
Tacho_gain – is the tachometer gain expressed in [V/rad/s]
6.13.4. DC brushed motor with tacho on motor
The internal motor speed units are A/D converter bits. The correspondence with the motor speed
in SI units is:
]IU[Speed_Motor
gain_Tacho
Range_Input_uelogAna
]SI[Speed_Motor ×
×
=
4096
where:
Analogue_Input_Range – is the range of the drive analogue input for feedback, expressed in [V].
You can read this value in the “Drive Info” dialogue, which can be opened from the “Drive Setup”
Tacho_gain – is the tachometer gain expressed in [V/rad/s]
6.13.5. Stepper motor open-loop control. No feedback device or incremental
encoder on load
The internal motor speed units are motor µsteps / (slow loop sampling period). The
correspondence with the motor
speed in SI units is:
]IU[Speed_Motor
Tsteps_Nosteps_No
]SI[Speed_Motor ×
××μ
π×
=
2
where:
No_steps – is the number of motor steps per revolution
32
SI units for motor speed are [rad/s] for a rotary motor, [m/s] for a linear motor