Siemens SIRIUS 3RW52 - Faults and remedial actions of the 3 RW52 soft starter

Messages and diagnostics
8.4 Faults and remedial actions of the 3RW52 soft starter
SIRIUS 3RW52 Soft Starter
134 Manual, 01/2019, A5E35630451002A/RS-AD/004
8.4 Faults and remedial actions of the 3RW52 soft starter
Error
No.
1)
Fault
Cause
Remedy
Manual
RESET
Remote
RESET
Auto RESET
303 Bus fault -
• Acknowledgment
via Auto RESET
- - x
308 Switching
element defective
-
• Check switching
elements L1, L2,
and L3.
• Replace the
defective devices.
- - -
309 Switching
element overload
Switching element
(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.
• Acknowledgment
after cooling down
x x -
317 Electronics
supply voltage
too low
The supply voltage is
below the permissible
value.
• Check the power
supply (load
dimensioning,
voltage range).
- - x
319 No supply
voltage
• The power switch
is open or the
power supply is not
correctly
connected.
• No current
• Inspect the cables
and the cable
connections and
replace any faulty
components.
x x -
324 Temperature
sensor overload
The temperature of the
motor is too high.
• Check the motor
and the application
that is driven by the
motor.
• After tripping, you
cannot switch on
the motor again until
the temperature has
reached the
switching point of
the temperature
sensor.
x
2)
x
2)
x
2)