Messages and diagnosis
8.3 Warnings and remedial actions of the 3RW50 soft starter
SIRIUS 3RW50 soft starter
Manual, 09/2019, A5E35628455002A/RS-AA/001
167
8.3 Warnings and remedial actions of the 3RW50 soft starter
Display of the warnings
The 3RW50 soft starter signals warnings by means of the following displays:
● LED "MT" (yellow)
● 3RW5 HMI High Feature (accessories)
Display of the warnings on the 3RW5 HMI High Feature
Detailed information about warnings and remedial actions appears in plain text on the
display of the 3RW5 HMI High Feature.
Warnings and remedial measures
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.
Switching element overload Switching element (switch contact,
power semiconductors) too hot.
• Check the ambient conditions associated
with cooling. You may want to consider
lowering the operating characteristics.
• Check the number of switching operations.
Therm. motor model overload
• The motor feeder is overloaded.
• The motor temperature has
exceeded a limit.
• Check the motor and the applications driven
by the motor.
• You can switch on the motor again after the
cooling-off period has expired or after
deleting the thermal motor model.
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.
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