Siemens SINAMICS G110M - Identifying Motor Data

Commissioning
5.2 Basic commissioning
SINAMICS G110M Operating Instructions
Operating Instructions, 04/2015, FW V4.7.3, A5E31298649B AD
111
Motor identification:
•
[1]: Recommended setting for closed-loop speed control. After an
ON command, the inverter identifies the motor data –
and with a new
ON command, optimizes the speed controller.
•
[2]: After an ON command, the inverter identifies the motor data at
standstill. Recommended setting for the following cases:
– You have selected "Speed control" as control mode, however the
motor cannot freely rotate, e.g. for mechanically limited traversing
sections.
– You have set "V/f control" as control mode.
•
[3]: This setting only makes sense after the motor identification [2].
The inverter optimizes the speed controller at the next ON
command.
•
[11] or [12]: The setting is the same as [1] or [2], however with the
difference that after the motor identification, the inverter immediately
changes into the "Operation" state.
Calculating the motor parameters: Select "Complete calculation".
9.
→ Moment of inertia estimator (Page 193)
9.
Set the check m
ark for "RAM to ROM (save data in the drive)" in
order to save your data in the inverter so that it is not lost when the
power fails.
Exit basic commissioning.
You have entered all of the data that is necessary for the basic commissioning of your
inverter.
5.2.7.4
Identifying motor data
Preconditions
● In the basic commissioning, you have selected the motor identification (MOT ID). In this
case, after the basic commissioning has been completed, the converter issues the alarm
A07991.
● The motor has cooled down to the ambient temperature.
If the motor is too hot, the motor data identification will provide incorrect values and the
closed-loop speed control will become unstable.