Siemens SIRIUS 3RW51, Руководство по эксплуатации оборудования

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9.4 Faults and remedial actions of the 3RW51 soft starter
Display of the faults
The 3RW51 soft starter signals faults by means of the following displays:
• LED "ER" (red)
• 3RW5 HMI Standard (accessory)
• 3RW5 HMI High Feature (accessory)
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
No.
1)
Error Cause Remedy RESET MODE
Man‐
ual
2)
Re‐
mote
3)
Auto
4)
303 Bus error Fault in the fieldbus com‐
munication.
You will find further infor‐
mation in the manual for
the 3RW5 communica‐
tion module in question. • Check the bus connection.
• Check the bus parameters. - - x
308 Switching element de‐
fective
• Switching element de‐
fective
• The fault is also gener‐
ated if the defective
switching element
(bypass or power sem‐
iconductor) cannot be
accurately identified.
Check the switching elements
L1, L2, and L3 and replace any
that are defective. - - -
309 Switching element
overload Switching element
(switch contact, power
semiconductors) too hot. • Check the ambient condi‐
tions associated with cool‐
ing. You may want to con‐
sider lowering the operat‐
ing characteristics.
• Check the number of
switching operations.
• Acknowledgment after
cooling down
x x -
Messages & diagnostics
9.4 Faults and remedial actions of the 3RW51 soft starter
SIRIUS 3RW51 Soft Starter
Equipment Manual, 09/2020, A5E37108631002A/RS-AC/003
135