Operation On Failure Of The Bus Connection To The Controller - Siemens SIRIUS 3RW5 Manual

Configuring

6.3 Operation on failure of the bus connection to the controller

6.3 Operation on failure of the bus connection to the controller
An interruption in the connection between the 3RW5 soft starter and the controller must not
result in an undefined plant status.
Depending on the 3RW5 soft starter, you can set parameters that define the behavior of the
3RW5 soft starter on interruption of the connection with the controller in "Automatic" mode.
The 3RW52 soft starter does not support the parameters. If there is a connection interruption
to the controller, all the bits of the process image output (PIQ) are set to 0.
Note
Response of 3RW52 soft starter in the event of bus connection failure
To enable you to continue controlling the 3RW52 soft starter in "Automatic" mode after
failure of the bus connection, you require a 3RW5 HMI (accessory) which enables you to
switch to "Manual operation local" mode (Page 25).
Without 3RW5 HMI, you cannot control the 3RW52 soft starter until the bus connection has
been restored.
Alternatively, you can remove the 3RW5 communication module (Page 33). Then restore the
3RW52 soft starter on the device to the factory setting, in order to switch to the
"Manual operation local - Input controlled" mode. You will find more information on restoring
the factory setting on the device in the Equipment Manual of the 3RW52 soft starter.
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SIRIUS 3RW5 EtherNet/IP communication module
Manual, 05/2019, A5E45131885002A/RS-AA/001