Siemens SINAMICS G120X - Drive Control Via USS; ON;OFF Commands Via USS; Activating Communication Via Fieldbus

6.3.6 Drive control via USS
6.3.6.1 Activating communication via fieldbus
Function description
Procedure
Proceed as follows to activate communication via USS:
1. Start quick commissioning.
2. In the first steps of the quick commissioning, confirm all of the values that have already been
set.
3. Select one of the following default settings:
– 54: "USS control"
– 55: "USS control local/remote"
Default setting of the interfaces (macros) (Page 107)
4. In the next steps of the quick commissioning, confirm all additional values that have already
been set.
5. Exit quick commissioning.
You have activated communication via USS.
❒
ON/OFF commands via USS
Selecting the macros 54 and 55 has the following effect:
● Only the ON/OFF2 command is possible via the terminal strip.
● The higher-level controller cannot turn the motor on or off.
To turn the motor on and off via the higher-level controller, you need to manually interconnect
the ON/OFF1 and OFF2 commands with the PROFIdrive control word:
● Set p0840[0] = r2090.0
● Set p0844[0] = r2090.1
Advanced commissioning
6.3 Drive control
SINAMICS G120X converter
Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC 261