Technosoft iPOS4808 VX, Техническое описание

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Technosoft 2018 67 iPOS4808 VX Technical Reference
DC brushed motor with tacho on motor
When only a tachometer is mounted on the motor shaft, the internal speed units are A/D converter
bits. The correspondence with the load
speed in SI units 1 is:
] IU [ Speed _ Motor
Tr gain _ Tacho
Range _ Input _ ue log Ana
] SI [ Speed _ Load
×
× ×
=
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]
Step motor open-loop control. No feedback device
The internal speed units are motor µsteps / (slow loop sampling period). The correspondence with
the load
speed in SI units is:
] IU [ Speed _ Motor
T Tr steps _ No steps _ No
] SI [ Speed _ 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
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”
Step motor open-loop control. Incremental encoder on load
The internal speed units are load encoder counts / (slow loop sampling period). The transmission
is rotary-to-rotary. The correspondence with the load speed in SI units is:
] IU [ Speed _ Load
T lines _ encoder _ No
] s / rad [ Speed _ Load
×
× ×
π ×
=
4
2
where:
No_encoder_lines – is the rotary encoder number of lines per revolution
Tr – transmission ratio between the motor displacement in [rad] and load displacement in [rad] or
[m]
1
SI units for speed are [rad/s] for a rotary movement, [m/s] for a linear movement