Siemens SINAMICS G120 Operating Instructions Manual page 133

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 an inverter with PROFIBUS or PROFINET interface, operation can be switched over using
digital input DI 3. 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.
Figure 5-3
Minimum and maximum speed
● Minimum speed - factory setting 0 [rpm]
The minimum speed is the lowest speed of the motor independent of the speed setpoint.
A minimum speed > 0 is, for example, useful for fans or pumps.
● Maximum speed - factory setting 1500 [rpm]
The inverter limits the motor speed to the maximum speed.
Operate the inverter with the factory setting
In basic applications with a standard induction motor, you can attempt to operate the drive with
a rated power of < 18.5 kW without carry out an additional commissioning steps. Check whether
the control quality of the drive without commissioning is adequate for the requirements of the
application.
We recommend that you configure the drive with the precise motor data.
Converter with the CU240B-2 and CU240E-2 Control Units
Operating Instructions, 01/2017, FW V4.7 SP6, A5E34259001B AD
Jogging the motor in the factory setting
Commissioning
5.3 Preparing for commissioning
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