Siemens SIRIUS 3RW5 Equipment Manual page 97

7.1.2.2 Status and error displays on the 3RW5 Modbus RTU communication module
"DIAG" LED
State
Flashes green / red
"BUS" LED
State
SIRIUS 3RW5 Modbus communication module
Equipment Manual, 03/2020, A5E43676481002A/RS-AC/003
Meaning
Device exchanging data with the Modbus RTU master.
Lights up green
The 3RW5 soft starter is not configured.
•
The 3RW5 communication module is starting.
•
Flashes green
The 3RW5 communication module is being parameterized.
•
Factory settings are being restored.
•
Device not performing data exchange.
•
Hardware or firmware defective.
Lights up red
Group error (only if the 3RW5 communication module is malfunctioning)
•
Switchover from old to new firmware after firmware update
•
Flashes red
(flashes briefly)
The "node flash test" was activated.
No supply voltage available.
Off
Meaning
Device is performing data exchange
(3RW5 Soft Starter in Automatic mode).
Lights up green
Bus error, e.g.:
•
–
Lights up red
Determining the baud rate or port configuration with the setting
•
"Automatic".
Switchover from old to new firmware after firmware update
•
(temporarily lights up)
Configuring error
Flashes red
After the 3RW5 communication module has started up, no data access
•
Off has occurred yet.
No supply voltage available.
•
Timeout for access monitoring of the control source.
Messages and diagnostics
7.1 LED display
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