Description
3.7 Operating modes and master control function
SIRIUS 3RW5 Modbus communication module
Equipment Manual, 03/2020, A5E43676481002A/RS-AC/003
39
3.7.3 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 "Automatic" mode.
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.
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