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5.3.3
Converter factory setting
Motor
In the factory, the converter is set for an induction motor with 2 pole pairs 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.
● After the OFF1 command, the motor brakes down to standstill with the ramp-down time.
● The negative direction of rotation is inhibited
Ramp-up time10 s
Figure 5-4
The ramp-up and ramp-down times define the maximum motor acceleration when the speed
setpoint changes. The ramp-up and ramp-down times are derived from the time between motor
standstill and the maximum speed, or between the maximum speed and motor standstill.
Traverse the motor in the jog mode
For a converter with PROFINET interface, operation can be switched over using digital input
DI 4. The motor is either switched on and off via the fieldbus – or operated in the jog mode via
its digital inputs.
For a control command at the respective digital input, the motor rotates with ±150 rpm. The
same ramp-up and ramp-down times as described above apply.
SINAMICS G120X converter
Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC
Factory interface settings (Page 105)
Switch motor on and off in the factory setting
Commissioning
5.3 Preparing for commissioning
157
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