Vacon 100 - Page 226

Selection
number
Selection name Description
0 No action No identification requested.
1 Identification at standstill
The drive operates without speed when you do the
identification run for the motor parameters. The motor
receives current and voltage, but the frequency is zero. The
U/f ratio and start magnetisation parameters are identified.
2
Identification with motor
rotating
The drive operates with speed when you do the identification
run for the motor parameters. The U/f ratio, the
magnetisation current and start magnetisation parameters
are identified.
To get accurate results, do this identification run with no
load on the motor shaft.
To activate the Identification function, set the parameter P3.1.2.4 and give a start command.
You have to give the start command in 20 s. If there is no start command in that time, the
identification run does not start. The parameter P3.1.2.4 is reset to the default value and an
identification alarm shows.
To stop the identification run before it is completed, give a stop command. This resets the
parameter to the default value. If the identification run is not completed, an identification
alarm shows.
NOTE!
To start the drive after the identification, a new start command is necessary.
P3.1.2.6 MOTOR SWITCH (ID 653)
You can use this parameter if there is a switch between the drive and the motor in your
system. The operation of a motor switch makes sure that an electrical circuit is de-energized
from the motor during the servicing.
When you enable this parameter, the motor switch opens and disconnects the motor from
the drive. This does not cause the drive to trip. It is not necessary to change the run
command or the reference signal to the drive.
When the servicing is done, disable the parameter P3.1.2.6 to connect the motor again. The
drive operates the motor speed to agree with the reference speed of the process commands.
If the motor rotates when you connect it, the drive finds the speed of the motor with the
Flying start function. Then the drive increases the speed to agree with the process
commands.
VACON · 226 PARAMETER DESCRIPTIONS
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