Chapter 1 - 7SR45 Description of Operation
©2018 Siemens Protection Devices Limited Chapter 1 Page 35 of 48
3.8 General Alarm
General Alarms are the user defined text messages displayed on the LCD when binary inputs are mapped and
triggered.
Up to 4 general alarms of 16 characters can be configured, each triggered from one or more input. Each general
alarm generates an event.
If multiple alarms are activated simultaneously, the last alarm indication is displayed on the LCD.
All the fault triggers generated by general alarms are logged in to the fault data record.
Table 3-11
General Alarm
Parameters Description
Range
Default
Value
Min
Max Step
Change
General
Alarm-n
General Alarm-n
16 char (0-9, A-Z, +, -, /, SPACE)
Alarm-n -
-
-
3.9 Reset LED, Trip Flag Indication and Binary Outputs
Depending upon any binary output configuration set by the user to operate the protection function, if the
protection functions detect any fault, binary output(s), local and remote trip flag indications, trip and respective
phase or earth LEDs operate and latch.
By using the RESET flag functionality, the user can reset binary outputs, LEDs, local trip flag indication.
The user can reset binary output/LEDs in any one of the following methods:
•
Binary Input
•
Reydisp Software
•
TEST/RESET
► key
•
Reset via Rear Communication Protocol
After successful reset of binary outputs, local flags, and LEDs, the “
FLAGS RESET”
message appears on LCD
and all the LEDs flashes and reset.
In the CT power mode, LED test can be performed if the current is more than 0.4xIn (single phase) or
0.14xIn (three phase).
If the fault current persists, pop-up message appears on the LCD “
FAULT PERSISTS
”.