Siemens SINAMICS G120 Getting Started - Page 41

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Siemens SINAMICS G120 Getting Started
Procedure
To identify the motor data, proceed as follows:
1. Switch on the motor. You can enter the on command via the terminal strip, fieldbus, or
2. Wait until the inverter switches off the motor after completion of the motor data
3. Backup the results of the motor data identification in the inverter so that they are not lost
If you have also selected a rotating measurement in addition to the motor data identification,
then the inverter again issues the alarm A07991.
1. Switch the motor on again in order to optimize the speed control.
2. Wait until the inverter switches off the motor after completion of the optimization. The
3. Backup the results of the motor data identification in the inverter so that they are not lost
You have now identified the motor data and the closed-loop speed control has been
optimized.
4.3.2

Enable "Safe Torque Off" safety function

Requirements:
● Commission a CU240E-2 Control Unit.
● In the basic commissioning, you selected a setting for the interfaces in which two
The "Basic Safety" wizard guides you through the enabling of the "Safe Torque Off" safety
function. Depending on the interface for "Safe Torque Off", the inverter skips individual
steps.
Note
If you enable "Safe Torque Off" via digital inputs, then the inverter interconnects digital inputs
DI 4 and DI 5 to the fail-safe digital input F-DI. The drive can respond unexpectedly if you
additionally interconnect these same inputs with other functions.
• Use digital inputs DI 4 and DI 5 exclusively for "Safe Torque Off".
Converter with Control Units CU230P-2; CU240B-2; CU240E-2
Getting Started, 04/2014, A5E32885834B AB
operator panel.
identification. The measurement takes several seconds.
when the power fails: TOOLS - PARAMETER SETTINGS - SAVE RAM TO ROM
optimization can take up to one minute.
when the power fails: TOOLS - PARAMETER SETTINGS - SAVE RAM TO ROM
terminals are reserved for a safety function.
Commissioning
4.3 Commissioning
41