Siemens SIRIUS 3RW5 - Page 114

Messages and diagnostics
7.4 Errors and remedial measures on the 3RW5 communication module
SIRIUS 3RW5 Modbus communication module
114 Equipment Manual, 03/2020, A5E43676481002A/RS-AC/003
7.4 Errors and remedial measures on the 3RW5 communication module
The following table describes possible errors and remedies for the
3RW5 communication module. Errors and remedies for the 3RW5 soft starter can be found
in the Equipment Manual of the 3RW5 soft starter.
Error No.
1)
Error
Cause
Remedy
303 Bus error -
• Check the bus connection.
• Check the bus parameters.
• The error is acknowledged automatically
once it has been rectified.
1)
Visible on the display of the 3RW5 HMI Standard.