Siemens CU240B-2 - Page 40

Commissioning
4.3 Commissioning
Converter with Control Units CU230P-2; CU240B-2; CU240E-2
40 Getting Started, 04/2014, A5E32885834B AB
Screen form
Setting
Param.
27.
Overview of the settings
Check list + select < Continue >
OK
28.
Save settings
Save
OK
29.
Saving, please wait
OK
1)
If the IOP Assistant does not offer this setting, after completing the basic commissioning, set
parameter p1900 to a value of 1 using the parameter menu.
You have completed the inverter's basic commissioning.
Identifying the motor data and optimizing the closed-loop control
Following basic commissioning, the inverter generally has to measure other motor data and
optimize its current and speed controllers.
To start motor data identification, you must switch on the motor.
WARNING
Risk of fatal injury as a result of machine movements when switching on the motor
Switching on the motor for identification purposes may result in hazardous machine
movements.
Secure dangerous machine parts before starting motor data identification:
• Before switching on, check that no parts are loose on the machine or can be spun out.
• Before switching on, ensure that nobody is working on the machine or located within its
working area.
• Secure the machine's work area against unintended access.
• Lower hanging/suspended loads to the floor.
Preconditions
● In the basic commissioning, you have selected the motor data ID. In this case, after the
basic commissioning has been completed, the inverter 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 can become unstable.