Table 11:
Start LED (yellow)
LED state
Description
Off
Normal operation.
On
A protection function has started and an indication message is displayed.
The start indication is latching and must be reset via communication,
LHMI or binary input on the LEDGEN component. To open the reset
menu on the LHMI, press
.
Flashing
The IED is in test mode and protection functions are blocked, or the
IEC61850 protocol is blocking one or more functions.
The indication disappears when the IED is no longer in test mode and
blocking is removed. The blocking of functions through the IEC61850
protocol can be reset in Main menu/Test/Reset IEC61850 Mod. The
yellow LED changes to either On or Off state depending on the state of
operation.
Table 12:
Trip LED (red)
LED state
Description
Off
Normal operation.
On
A protection function has tripped. An indication message is displayed if
the auto-indication feature is enabled in the local HMI.
The trip indication is latching and must be reset via communication, LHMI
or binary input on the LEDGEN component. To open the reset menu on
the LHMI, press
.
Flasing
Configuration mode.
Alarm indicators
The 15 programmable three-color LEDs are used for alarm indication. An
individual alarm/status signal, connected to any of the LED function blocks, can be
assigned to one of the three LED colors when configuring the IED.
Table 13:
Alarm indications
LED state
Description
Off
Normal operation. All activation signals are off.
On
•
Follow-S sequence: The activation signal is on.
•
LatchedColl-S sequence: The activation signal is on, or it is off but the indication
has not been acknowledged.
•
LatchedAck-F-S sequence: The indication has been acknowledged, but the
activation signal is still on.
•
LatchedAck-S-F sequence: The activation signal is on, or it is off but the
indication has not been acknowledged.
•
LatchedReset-S sequence: The activation signal is on, or it is off but the
indication has not been acknowledged.
Flashing
•
Follow-F sequence: The activation signal is on.
•
LatchedAck-F-S sequence: The activation signal is on, or it is off but the
indication has not been acknowledged.
•
LatchedAck-S-F sequence: The indication has been acknowledged, but the
activation signal is still on.
Section 6
1MRK 500 129-UEN A
LHMI overview
32
670/650 series 2.2 IEC
Quick start guide
