Siemens SIRIUS 3RW50 - Sets the Operating Mode

Description
1.5 Operating modes and master control function
SIRIUS 3RW50 soft starter
Manual, 09/2019, A5E35628455002A/RS-AA/001
17
Connection abort
On failure of the bus connection or a CPU stop, the 3RW50 soft starter behaves
independently of the mode in accordance with the parameter "Control via digital input"
(Page 139).
If other connections between the control source and 3RW50 soft starter are aborted, the
master control function automatically switches back to the lowest priority of the current
mode.
● "Automatic" mode: The 3RW50 soft starter behaves in accordance with the parameter
"Control via digital input" (Page 139).
● Operating mode "manual - bus": The master control function switches t
o
"
Manual - bus - Connection abort".
● Operating mode "manual - local": The master control function switches t
o
"
Manual - local - Input controlled".
Further information
You will find more information on the 3RW5 communication modules in the manual for the
3RW5 communication module in question.
1.5.2 Sets the operating mode
Fundamental response when changing the mode
A higher-priority mode can take over as master control from a lower-priority mode at any
time; the reverse is not possible. The master control function can only be returned to the
mode with the lowest priority. Control sources with higher priority must take the master
control function from the mode with the lowest priority.
Requirements
● A mode with lower priority can only take the master control function back while the motor
is switched off.
● For the "Automatic" mode and "Manual - bus" mode you require a
3RW5 communication module.