All the programmable LEDs in the HMI of the protection relay have two colors, green
and red. For each LED, the different colors are individually controllable.
Each LED has two control inputs, ALARM and OK. The color setting is common for all
the LEDs. It is controlled with the Alarm colour setting, the default value being "Red".
The OK input corresponds to the color that is available, with the default value being
"Green".
Changing the Alarm colour setting to "Green" changes the color behavior of the OK
inputs to red.
The ALARM input has a higher priority than the OK input.
Each LED is seen in the Application Configuration tool as an individual function
block. Each LED has user-editable description text for event description. The state
("None", "OK", "Alarm") of each LED can also be read under a common monitored
data view for programmable LEDs.
The LED status also provides a means for resetting the individual LED via
communication. The LED can also be reset from configuration with the RESET input.
The resetting and clearing function for all LEDs is under the Clear menu.
The menu structure for the programmable LEDs is presented in Figure 16. The
common color selection setting Alarm colour for all ALARM inputs is in the General
menu, while the LED-specific settings are under the LED-specific menu nodes.
Alarm mode
Description
LED 1
Programmable LEDs
Alarm color Red
Green
Follow-S
Follow-F
Latched-S
LatchedAck-F-S
Programmable LED description
LED 2
General
GUID-0DED5640-4F67-4112-9A54-E8CAADFFE547 V1 EN
Figure 16: Menu structure
Alarm mode alternatives
The ALARM input behavior can be selected with the alarm mode settings from the
alternatives "Follow-S", "Follow-F", "Latched-S" and "LatchedAck-F-S". The OK
input behavior is always according to "Follow-S". The alarm input latched modes can
be cleared with the reset input in the application logic.
1MRS758755 A Section 3
Basic functions
REC615 and RER615 51
Technical Manual
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