Siemens SIRIUS 3RW52 - Warnings and Remedial Measures

Messages and diagnostics
8.3 Warnings and remedial measures
SIRIUS 3RW52 Soft Starter
Manual, 01/2019, A5E35630451002A/RS-AD/004
133
8.3 Warnings and remedial measures
Warning
Cause
Remedy
Connection abort in manual
mode
Connection to a local control station (e.g.
device HMI) has been interrupted.
• Check the connection between the HMI
and the device.
• Check the connection between the PC and
the local device interface.
Contact block overload Contact block (switching contact, power
semiconductor) too hot
• Check the ambient conditions linked to
cooling. You might have to take derating
into consideration.
• Check the number of switching operations.
Therm. motor model
overload
• The motor feeder has been overloaded.
• The motor temperature rise has
exceeded a limit.
• Please check the motor and the
applications that are being driven by the
motor.
• After tripping, you can switch on the motor
again after the cooling time has expired or
after clearing the thermal memory of the
motor.
Internal fan fault
• Internal fan is dirty (not rotating freely).
• Connecting cable has fallen off or is
defective.
• Internal fan faulty
• Check the function of the fan.
• Clean the fan.
• Check the wiring.
• Replace the fan.