Vacon 100 flow Applications Manual page 160

vacon • 158
P3.1.2.4
The automatic motor identification calculates or measures the motor parameters that are needed
for optimum motor and speed control.
Identification Run is a part of tuning the motor and the drive specific parameters. It is a tool for
commissioning and service of the drive with the aim to find as good parameter values as possible
for most drives.
NOTE! Motor nameplate parameters have to be set before executing the identification run.
Selection
number
0 No action
1 Identification at
standstill
2 Identification with
motor rotating
The automatic identification is activated by setting this parameter to the desired value and giving a
start command in the requested direction. The start command to the drive has to be given within 20
s. If no start command is given within this time, the identification run is cancelled, the parameter
will be reset to its default setting and an
The identification run can be stopped at any time with normal stop command and the parameter is
reset to its default setting. An
failed.
NOTE! New start command (Rising edge) is required to start the drive after identification.
P3.1.2.6
This function is typically used if there is a switch between the drive and the motor. Such switches
are often found in residential and industrial applications to make sure that an electrical circuit can
be completely de-energised from the motor for service or maintenance.
When this parameter is enabled and the motor switch is opened to disconnect the running motor,
the drive detects the loss of motor without tripping. It is not necessary to make any changes in the
run command or the reference signal to the drive from the process control station. When the motor
is re-connected after completed maintenance by closing the switch, the drive detects the motor
connection and runs the motor to the reference speed as per the process commands.
If the motor is rotating when re-connected, the drive detects the speed of the running motor
Flying start
through its
8
I (ID 631)
DENTIFICATION
Selection name
No identification requested.
The drive is run without speed to identify the motor parameters.
The motor is supplied with current and voltage but with zero
frequency. U/f ratio is identified.
The drive is run with speed to identify the motor parameters. U/f
ratio and magnetisation current are identified.
NOTE!
the motor shaft for accurate results.
Identification
M (ID 653)
OTOR SWITCH
feature and then controls it to desired speed as per the process commands.
Monitoring value and parameter descrip-
Table 103.
Description
This identification run must be performed with no load on
Identification
alarm will be launched.
alarm will be launched if the identification run has
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