ABB Switzerland Ltd
1KHW001489-EN
ETL600
The purpose of the alarms and warnings is to help the user in
localization and identification of faults and abnormal operating
conditions.
Alarm
processing
Hardware
components
Software
processes
LEDs
Relay contacts on
P4LT, R1BC,
G4AI, O4LE
Polled alarm
messages
Alarm display in
system status
Event
recorder
Alarms, Warnings from
remote terminal (via EOC)
Alarms,
Warnings
Remote
ETL600
terminal
Voltages,
Currents
Alarms, Warnings to
remote terminal (via EOC)
Local
ETL600
terminal
Events
High-level alarms
High-level alarms
Low-level
alarms
Low-level
alarms
Low-level +
Detail alarms
High-level
alarms
High-level
alarms
Fig. 9-2
Alarm processing – block diagram
9.3.2. Warnings
Warnings are used to signal that an equipment is not in normal
operation state, but otherwise working properly. Examples:
•
Measurement of frequency response
•
Tuning of RF filters
•
Equipment running with temporary configuration
•
Dummy load plugged
Warnings are collected and reported via the same mechanisms as
alarms.
Warning LEDs are provided on the front plates of P4LT, O4LE and
G4AI. Their colour is yellow.
9.3.3.
Grouping of alarms
Alarms and warnings can be grouped according to several criteria (Fig.
9-3):
•
Service:
PLC, TPE1, TPE2, DATA
•
Hardware:
Circuit boards of the ETL600 terminal
9-6 November
2005
Troubleshooting
Summary of Contents for ETL600
Page 4: ......
Page 32: ......
Page 126: ......
Page 176: ......
Page 206: ......
Page 216: ......
Page 226: ......
Page 264: ......
Page 268: ......
Page 276: ......
Page 284: ......
Page 308: ......
Page 324: ......
Page 346: ......
Page 348: ......
Page 366: ......
Page 372: ......
Page 374: ......
Page 380: ......