Warnings And Remedial Actions Of The 3Rw52 Soft Starter - Siemens SIRIUS 3RW52 Equipment Manual

9.3

Warnings and remedial actions of the 3RW52 soft starter

Display of the warnings
The 3RW52 soft starter signals warnings by means of the following displays:
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
Warning
Connection abort in manual
mode
Switching element too hot for
Start
Motor heating warning limit
exceeded
Check fan
SIRIUS 3RW52 Soft Starter
Equipment Manual, 04/2020, A5E35630451002A/RS-AE/005
LED "MT" (yellow)
3RW5 HMI High Feature (accessory)
Cause
Connection to a local control station
(e.g. device HMI) has been interrupted.
Switching element (switch contact, power
semiconductors) too hot.
The motor feeder has been
overloaded.
The motor temperature rise has
exceeded a limit.
Internal fan is dirty (not rotating freely).
Connecting cable has fallen off or is
defective.
Internal fan faulty
9.3 Warnings and remedial actions of the 3RW52 soft starter
Remedy
Messages and diagnostics
Check the connection between the HMI
and the device.
Check the connection between the PC
and the local device interface.
Check the ambient conditions
associated with cooling. You may want
to consider lowering the operating
characteristics.
Check the number of switching
operations.
Check the motor and the applications
driven by the motor.
You can switch on the motor again
after the cooling-down period has
expired or after deleting the thermal
motor model.
Check the function of the fan.
Clean the fan.
Check the wiring.
Replace the fan.
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