Additional information
You will find further information on messages of the 3RW55 and 3RW55 Failsafe soft starters in
chapter Status and error displays (Page 248).
You will find further information on the messages of the 3RW5 communication module in the
manual for the 3RW5 communication module in question.
9.3
Warnings and remedial measures of the 3RW55 and 3RW55
Failsafe soft starters
Display of the warnings
The 3RW55 and 3RW55 Failsafe soft starters signal warnings by means of the following displays:
• "MT" LED (yellow)
• 3RW5 HMI High Feature
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
Cause
Remedy
Generator operation
The motor is coasting down. The motor
connection cables may be energized.
Parameterize the ramp-down mode to
minimize or avoid the generator opera‐
tion.
Connection abort in manual mode
Connection to operator device (e.g.
3RW5 HMI) is interrupted.
• Check the communication between
the 3RW5 HMI and the device.
• Check the connection between PC
and the local device interface.
Temperature sensor overload
The temperature of the motor is too high. • Check the motor and the application
that is driven by the motor.
• After triggering, the motor can only
be switched on again if the tempera‐
ture has reached the release position
of the temperature sensor.
• The behavior of the soft starter de‐
pends on the "Response to overload
temperature sensor" parameter that
has been set.
Temperature sensor wire break
A wire break has occurred in the sensor
line of the temperature sensor.
Check the sensor line and the tempera‐
ture sensor.
Temperature sensor short-circuit
A short-circuit has occurred in the sensor
line of the temperature sensor.
Messages and diagnostics
9.3 Warnings and remedial measures of the 3RW55 and 3RW55 Failsafe soft starters
SIRIUS 3RW55 and 3RW55 Failsafe Soft Starters
250
Equipment Manual, 02/2022, A5E35630887002A/RS-AF/006
