Functionality - ABB REB650 Technical Manual

1MRK 505 277-UUS C
5.5.2
5.5.2.1
5.5.2.2
5.5.2.3
Technical Manual
LED

Functionality

The function blocks LEDGEN and GRP1_LEDx, GRP2_LEDx and GRP3_LEDx
(x=1-15) controls and supplies information about the status of the indication LEDs.
The input and output signals of the function blocks are configured with PCM600. The
input signal for each LED is selected individually using SMT or ACT. Each LED is
controlled by a GRP1_LEDx function block, that controls the color and the operating
mode.
Each indication LED on local HMI can be set individually to operate in 6 different
sequences; two as follow type and four as latch type. Two of the latching sequence
types are intended to be used as a protection indication system, either in collecting or
restarting mode, with reset functionality. The other two are intended to be used as
signalling system in collecting mode with acknowledgment functionality.
Status LEDs
There are three status LEDs above the LCD in the front of the IED, green, yellow and
red.
The green LED has a fixed function, while the yellow and red LEDs are user
configured. The yellow LED can be used to indicate that a disturbance report is created
(steady) or that the IED is in test mode (flashing). The red LED can be used to indicate
a trip command.
Indication LEDs
Operating modes
Collecting mode
• LEDs, which are used in collecting mode of operation, are accumulated
continuously until the unit is acknowledged manually. This mode is suitable when
the LEDs are used as a simplified alarm system.
Re-starting mode
• In the re-starting mode of operation each new start resets all previous active LEDs
and activates only those, which appear during one disturbance. Only LEDs defined
for re-starting mode with the latched sequence type 6 (LatchedReset-S) will
initiate a reset and a restart at a new disturbance. A disturbance is defined to end a
settable time after the reset of the activated input signals or when the maximum
time limit has elapsed.
Local Human-Machine-Interface LHMI
Section 5
57