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Description
1.5 Operating modes and master control function
1.5
Operating modes and master control function
Operating modes
The following modes are available (in ascending order of priority):
Mode
Automatic
Manual
operation
local
If the connection to the control source is aborted, the control priority automatically switches
back to the lowest priority of the current mode.
Sets the operating mode
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:
– 3RW5 HMI: With the action "LOCAL / REMOTE"
● The digital inputs receive the control priority from an operating mode with lower priority
via the following options:
– Via the "Manual operation local - input controlled" bit in the process image output
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:
– 3RW5 HMI: With the action "LOCAL / REMOTE"
● With control priority of the digital inputs or in the event of a connection abort, the
operating mode with the lower priority can actively retrieve the control priority:
– Via the "Manual operation local - input controlled" bit in the process image output
12
Control
source
Fieldbus
Input controlled
Digital inputs
3RW5 HMI
3RW5 HMI
controls
(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.
(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.
Control of the 3RW5 soft starter
PROFINET and PROFIBUS: PLC controls
Modbus: Modbus client (e.g. PLC) controls
Input actions control
3RW5 HMI controls
Manual, 06/2019, A5E37108631002A/RS-AB/002
Priority
Lowest
↓
Highest
3RW51 Soft Starter
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