Figure 42: Programmable LEDs status in WHMI
Programmable LEDs are available only when at least one LED has been instantiated
and the
OK
or
ALARM
signal is connected in Application Configuration in PCM600.
All the programmable LEDs on the protection relay's HMI 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. When a LED is in the
alarming state, a bell symbol is shown on the LHMI next to the title of the
Programmable LEDs page.
Each LED is seen in Application Configuration as an individual function block. Each
LED has a 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 available at the left side of the
Programmable LEDs page and under the Clear menu.
The menu structure for the programmable LEDs is presented in
. 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
Figure 43: Menu structure
1MRS759142 F
Basic functions
REX640
Technical Manual
119