Description
1.4 Operating modes and master control function
SIRIUS 3RW55 soft starter
Manual, 08/2018, A5E35630887002A/RS-AB/002
15
A higher-priority mode can actively 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.
A mode with lower priority can only take the master control function back while the motor is
switched off.
The mode with higher priority takes over or receives the master control function from the
current mode in the following ways:
● The mode with higher priority actively takes over the master control function:
– Digital inputs: By switching on the input action "Manual operation local", if this is
parameterized.
– 3RW5 HMI: With the action "LOCAL / REMOTE"
– SIRIUS Soft Starter ES (TIA Portal)
● If the input action "Manual operation local" is not parameterized, the digital inputs obtain
the master control function from a mode of lower priority in one of the following ways:
– Via 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). You will find more information on the process images and
data tables in the manual for the 3RW5 communication module in question.
– SIRIUS Soft Starter ES (TIA Portal) (depending on the 3RW5 communication module)
The mode with the lowest priority receives or takes over the master control function from the
current mode in the following ways:
● The mode with higher priority actively returns the master control function:
– Digital inputs: By switching off the input action "Manual operation local", if this is
parameterized.
– 3RW5 HMI: With the action "LOCAL / REMOTE"
– SIRIUS Soft Starter ES (TIA Portal)
● If the input action "Manual operation local" is not parameterized, the mode with the lowest
priority can actively obtain the master control function from the digital inputs or on
connection abort:
– Via 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). You will find more information on the process images and
data tables in the manual for the 3RW5 communication module in question.
– SIRIUS Soft Starter ES (TIA Portal) (depending on the 3RW5 communication module)
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