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

Messages and diagnostics

8.4 Faults and remedial actions of the 3RW52 soft starter

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