Control Via Digital Input - Siemens PROFINET SIRIUS 3RW5 Equipment Manual

3.5.3

Control via digital input

Requirements
• 3RW50 soft starter from firmware version V1.0 or 3RW52 soft starter from firmware
version V2.0.1
Operating principle
The parameter "Control via digital input" is helpful, for example, for applications in which the bus
connection serves mainly for observation and monitoring purposes.
The parameter defines how the master control function behaves on failure of the bus connection
or a CPU stop. A failure of the bus connection or a CPU stop can also occur in the operating mode
"manual - local", for example when observing or monitoring via the bus connection. You can use
the parameter to disable a switchover to the "Automatic" mode and operating mode "manual -
bus".
Setting options
• 3RW5 HMI High Feature (firmware version V3.0 or higher)
Menu: "Parameters > Soft Starter > Additional parameters > Control via digital input"
You will find more information on operating the 3RW5 HMI High Feature in the Equipment
Manual of the 3RW5 soft starter.
• Parameterization mode via key combination on the 3RW5 soft starter
Further information on the parameterization mode can be found in the Equipment Manual
of the respective 3RW5 soft starter.
Parameter
Parameter
Control via digital input
SIRIUS 3RW5 PROFINET communication modules
Equipment Manual, 05/2021, A5E35631297002A/RS-AD/004
Description
• Manual activation
On failure of the bus connection or a CPU stop the 3RW5 soft starter remains in the
"Automatic" mode or the 3RW5 soft starter switches to the "Automatic" mode.
• Permanent activation
A switch to the "Automatic" mode and operating mode "manual - bus" is not possible.
If the 3RW5 soft starter is in the "Automatic" or "manual - bus" mode, the 3RW5 soft
starter switches to the "Manual operation local ‑ input controlled" mode. Control by
means of a higher-level control (e.g. PLC) is not possible.
• Activate on bus error (factory setting)
On failure of the bus connection or a CPU stop, the 3RW5 soft starter switches from
the "Automatic" mode to the "Manual operation local - input controlled" mode or
the 3RW5 soft starter remains in the operating mode "manual - local" mode.
• No change on bus error
On failure of the bus connection or a CPU stop the master control function does not
switch, but the 3RW5 soft starter remains in the current mode.
3.5 Operating modes and master control function
Description
33