Operating Instructions ACU
The current position after Start Positioning of Axle 37 is recognized by the frequency inverter as
follows:
During commissioning, after switching on the frequency inverter, a search mode is performed for 3
rotations at a rotational frequency of 1 Hz in order to detect the reference signal. As soon as the
reference signal was recognized twice, the drive is positioned to the Reference orientation 469.
When a resolver is used, search mode will not be used during commissioning.
If the motor was already rotating before axis positioning was enabled, the positioning to the
Reference orientation 469 is performed without search mode because the position of the reference
point was already detected by the frequency inverter.
If the positioning is carried out, after controller enabling and start command, when the motor is at a
standstill:
The motor is positioned clockwise to the reference orientation if the value for the reference
orientation is higher than the value adjusted before.
The motor is positioned anticlockwise to the reference orientation if the value for the reference
orientation is smaller than the value adjusted before.
The sense of rotation during the positioning is independent of whether Start Clockwise or Start
Anticlockwise was activated.
The time required until the reference orientation is reached depends on:
ï€ Actual Frequency
ï€ Frequency ramp for deceleration
ï€ Rotational angle to reference orientation
ï€ Max positional error
ï€ time constant positioning contr.
To Next Page
Loading...
Need help?
General
