Siemens SENTRON 3WA, System Manual

Page: 26 / 82

Status of the circuit breaker
3.8 Status of warnings
3WA Air Circuit Breaker Communication
24
System Manual, 11/2021, 92310000004-02
3.8 Status of warnings
Active warnings can be indicated and evaluated in the "ETU warnings" register.
Name Register (0x0000 HEX)
ETU warnings 0x61DC
Description Bit Comment
Battery of the ETU600 is dead 1 Refers to the system time. Replace the
battery, see Chapter "4.11.4 Replacement
battery for the ETU600 electronic trip unit"
in the 3WA Equipment Manual (Page 5).
The system time was not set 2 Active if the system time has never been
set. In this case, it must be assumed that
the system time is incorrect.
Deactivated if system time has previously
been set (value 0).
This bit does not indicate whether the
system time is valid (= local time).
Limit temperature exceeded in ETU600 3 Fault-free operating state is no longer
guaranteed.
Reduce the ambient temperature to pre-
vent the device from failing.
Limit temperature in COM module
exceeded
4
Line frequency not set correctly 5 Active if a voltage tap is present and the
measurement function detects that the
set line frequency does not match the
measured line frequency.
Clock in ETU600 defective 6 System time invalid.
IOM230 not found 9 Internal CubicleBUS
2
modules could not
be found or are defective.
If the modules are not found, this may
indicate a fault in the CubicleBUS
2
, e.g.
due to loose connectors or EMC influ-
ences.
For more information, see Chapter "Trou-
bleshooting" in the 3WA Equipment Man-
ual (Page 5).
IOM230 defective 10
Reserved 11
Reserved 12
COM module not found 13
COM module defective 14
BSS200 not found 15
BSS200 defective 16
Inspection required 21 Set time interval for the next inspection
has elapsed.
Circuit breaker inspection required 22 The main contacts have reached the "In-
spection" status and must be checked
during the next inspection.
Maintenance of the main contacts
required
28 The main contacts have reached the
"Maintenance" status and must be re-
placed during the next maintenance.
TUI600 not found 30 Inspection and possibly replacement of
the TUI600 module is required.
TUI600 defective 31