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Commissioning
5.3 Preparing for commissioning
5.3.3
Converter factory setting
Motor
In the factory, the converter is set for an induction motor that matches the rated power of the
converter.
Converter interfaces
The inputs and outputs and the fieldbus interface of the converter have specific functions when
set to the factory settings.
Switching the motor on and off
The converter is set in the factory as follows:
● After the ON command, the motor accelerates within the ramp-up time (referred to
1500 rpm) to its speed setpoint.
Figure 5-4
The ramp-up time defines the maximum motor acceleration when the speed setpoint
changes. The ramp-up time refers to the time from standstill up to the set maximum motor
speed.
● The converter only permits speed setpoints in one direction of rotation.
● The converter switches off the motor after the OFF2 command. The motor coasts down to
a standstill.
Minimum and maximum speed
● Minimum speed - factory setting 0 [rpm]
After the selection of a motor, during the quick commissioning, the converter sets the
minimum speed to 20% of the rated speed.
The minimum speed is the lowest speed of the motor independent of the speed setpoint.
● Maximum speed - factory setting 1500 [rpm]
The converter limits the motor speed to this value.
108
Factory interface settings (Page 81)
Switching the motor on and off in the factory setting
Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB
SINAMICS G120XA converter
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