Possible Reasons For The Alarms - Siemens SWT 3000 Equipment Manual

Diagnostics and Error Handling

4.4 Possible Reasons for the Alarms

4.4 Possible Reasons for the Alarms
Table 4-9
Relay
GALR
RXALR
NUALR
190
Alarm Relays and Possible Alarm Reasons
Possible Reason
Normal operation interrupted
PU4 measuring point alarm (MAL)
Transmission path faulty, no alternative path
Primary and secondary path not available
IFC test operation
Module alarm or configuration alarm
Guard alarm, transmission path not available, no
alternative path
Guard alarm, primary and secondary path not avail-
able
Time limit for the command output exceeded
Output of the unblocking impulse (when activated) at
operating mode 3 to 5A
Primary path not available but secondary path
existing.
Primary and secondary path not available
Power failure of one power supply in case of redun-
dant power supply
LIA signal to noise alarm
LID bit error alarm (bit error rate is > 1 x 10
Switch NU-Relay on GAL is activated in the alarms
control configuration
Time limit for the command input exceeded
IP alarm
-6 )
Smart Communication, SWT 3000 Teleprotection, Equipment Manual
C53000-G6040-C605-1, Edition 03.2020
Comment
Additional non-urgent alarm
Additional RXALR
Additional RXALR and non-
urgent alarm
OK LED on PU4 green blinking
OK LED red
Additional GALR
Additional GALR and non-
urgent alarm
The command output is inter-
rupted. The alarm is deacti-
vated when the command
transmission is canceled.
Switchover to the alternative
path
Additional GALR and RXALR
No interrupt as long as the
second power supply is working
Command outputs blocked
(depending on settings)
Command outputs blocked
(depending on settings)
Additional contact in case of
GALR.
Refer to 3.5.14.4 Setting
Options for SWT 3000 Alarms).
This function is not available
when 2 transmission paths are
used.
The command transmission is
interrupted. The alarm is deacti-
vated when the command
input is canceled.
IP alarm is activated if errors
occur in SNMP, NTP,
WebServer, and DHCP