Sets The Operating Mode - Siemens SIRIUS 3RW52 Equipment Manual

3.6.2

Sets the operating mode

Fundamental response when changing the mode
A higher-priority mode can fetch control from a lower-priority mode at any time; the reverse is
not possible. Master control can only be returned to the mode with the lowest priority. Control
sources with higher priority must fetch master control from the mode with the lowest priority.
Requirements
"Automatic" mode
Note that the 3RW52 soft starter switch with a firmware version earlier than V2.0.1 switches
to "Automatic" mode after the 3RW5 communication module has been installed in the
3RW52 soft starter. 3RW52 soft starters with firmware version V2.0.1 and later switch to
"Automatic" mode only with the settings "Manual activation" or "No change on bus error" of
the parameter "Control via digital input" (Page 147).
Receiving master control
"Automatic" mode receives control from the operating mode "manual - bus" or
"manual - local" as follows:
Withdrawal of master control by other control sources
In "Automatic" mode, control can be withdrawn by any control source.
SIRIUS 3RW52 Soft Starter
Equipment Manual, 04/2020, A5E35630451002A/RS-AE/005
A mode with lower priority can only fetch back control while the motor is switched off.
For the "Automatic" mode and operating mode "Manual - bus", you require a
3RW5 communication module.
Command in SIRIUS Soft Starter ES (TIA Portal) Premium / Professional (fieldbus)
Brief overview: Window "Task Card" > Tab "Online Tools" > "SIRIUS Control Panel >
Master Control > Release Control"
By disabling the "Manual operation local - input controlled" bit in the process image output
(PIQ) or in the data table "Process image output (PIQ)" (depending on the
3RW5 communication module), the "Automatic" mode receives control from the Input IN.
"LOCAL / REMOTE" action on the 3RW5 HMI
Command in SIRIUS Soft Starter ES (TIA Portal)
(local interface on the 3RW5 HMI High Feature)
Brief overview: Window "Task Card" > Tab "Online Tools" > "SIRIUS Control Panel >
Master Control > Release Control"
3.6 Operating modes and master control function
Description
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