Automatic Mode - Siemens SIRIUS 3RW5 Equipment Manual

"Automatic" mode
The control source is connected to the 3RW5 soft starter via the
3RW5 communication module. In "Automatic" mode, control is with a higher-level control:
● Modbus TCP: Modbus Client (e.g. PLC)
● Modbus RTU: Modbus Master (e.g. PLC)
Note
"Automatic - input controlled" mode
The "Automatic - input controlled" mode is available for 3RW55 soft starter as of firmware
version V2.1 if the digital inputs have master control by activating the
"Manual operation local - input controlled" bit in the process image output (PIQ). The PLC
can regain master control at any time.
Operating mode "manual - local"
In the operating mode "manual - local" the master control function rests with a control source
directly on the 3RW5 soft starter:
● Input IN (3RW50 and 3RW52 Soft Starters) or digital inputs
(3RW55 and 3RW55 Failsafe soft starters)
● 3RW5 HMI
● SIRIUS Soft Starter ES (TIA Portal) via local interface on the 3RW5 HMI High Feature
Priorities of the operating modes
Operating mode
Automatic
Manual operation local -
Supported by 3RW55 soft starter from firmware version V2.1
1)
Not possible for 3RW50, 3RW52, 3RW55 soft starters with firmware version earlier than V2.1 and 3RW55 Failsafe. For
2)
the 3RW55 soft starter as of firmware version V2.1 if the digital inputs have master control by activating the
"Manual operation local - input controlled" bit in the process image output (PIQ). The PLC can regain master control at
any time.
Explanation in text below.
3)
Possible for 3RW50, 3RW52, 3RW55 and 3RW55 Failsafe soft starters. For 3RW55 soft starters as of firmware version
4)
V2.1, only if the input action "Operating mode manual - local" has been parameterized and activated.
SIRIUS 3RW5 Modbus communication module
Equipment Manual, 03/2020, A5E43676481002A/RS-AC/003
Control source
- Modbus client or Modbus master (e.g. PLC)
Input controlled Digital inputs
1)
Connection abort
(depending on the 3RW5 soft starter and parameterization)
Input controlled Input IN or digital inputs
3RW5 HMI controlled 3RW5 HMI
PC controlled SIRIUS Soft Starter ES (TIA Portal)
3.7 Operating modes and master control function
2)
3)
4)
Description
Priority
Lowest
↓
↓
↓
↓
Highest
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