Technosoft IBL2403-CAN - Brushless Motor with Linear Hall Signals; DC Brushed Motor with Quadrature Encoder on Load and Tacho on Motor

© Technosoft 2007 70 IBL2403 Technical Reference
Tr – transmission ratio between the motor displacement in SI units and load displacement in SI
units
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”
6.4.2. Brushless motor with linear Hall signals
The internal jerk units are counts / (slow loop sampling period)
3
. The motor is rotary. The position
resolution i.e. number of counts per revolution is programmable as a power of 2 between 512 and
8192. By default it is set at 2048 counts per turn. The correspondence with the load acceleration
in SI units is:
For rotary motors:
]IU[Jerk_Motor
TTrresolution
]SI[Jerk_Load ×
××
π×
=
3
2
For linear motors:
3
Pole_Pitch
Load_Jerk[SI] = ×Motor_Jerk[IU]
resolution×Tr × T
where:
resolution – is the motor position resolution
Tr – transmission ratio between the motor displacement in SI units and load displacement in SI
units
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])
6.4.3. DC brushed motor with quadrature encoder on load and tacho on motor
The internal jerk units are encoder counts / (slow loop sampling period)
3
. The motor is rotary and
the transmission is rotary-to-rotary. The correspondence with the load jerk in SI units is:
]IU[Jerk_Load
Tlines_encoder_No
]SI[Jerk_Load ×
××
π×
=
3
4
2
where:
No_encoder_lines – is the encoder number of lines per revolution
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”