Faults And Remedial Actions Of The 3Rw50 Soft Starter - Siemens SIRIUS 3RW50 Manual

Messages and diagnosis

8.4 Faults and remedial actions of the 3RW50 soft starter

8.4 Faults and remedial actions of the 3RW50 soft starter
Display of the faults
The 3RW50 soft starter signals faults by means of the following displays:
● LED "ER" (red)
● 3RW5 HMI Standard (accessories)
● 3RW5 HMI High Feature (accessories)
Display of the faults on the 3RW5 HMI
● 3RW5 HMI Standard: The display shows fault numbers that you can assign to the
respective fault on the basis of the following table.
● 3RW5 HMI High Feature: Detailed information about faults and remedial actions appears
in plain text on the display.
Faults and remedial actions
Error Error
No.
1)
303 Bus error
308 Switching element
defective
309 Switching element
overload
317 Electronics supply
voltage too low
319 Supply voltage
missing
168
Cause
-
-
Contact block
(switching contact, power
semiconductor) too hot
The supply voltage is below
the permitted value.
The line side switch or
•
the power supply is not
plugged in correctly.
No current
•
Remedy
Acknowledgment via Auto
•
RESET
Check switching elements
•
L1, L2, and L3.
Replace the defective
•
devices.
Check the ambient
•
conditions associated
with cooling. You may
want to consider lowering
the operating
characteristics.
Check the number of
•
switching operations.
Acknowledgment after
•
cooling down
Check the power supply
•
(load dimensioning,
voltage range).
Check the cables and the
•
cable connections and
replace any defective
components.
Manual, 09/2019, A5E35628455002A/RS-AA/001
RESET MODE
Manual Remote Auto
2) 3)
- - x
- - -
x x -
- - x
x x -
SIRIUS 3RW50 soft starter
4)