Table 13: 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 14: 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.
5.4.2 Parameter management
The LHMI is used to access the relay parameters. Three types of parameters can be read
and written.
• Numerical values
• String values
• Enumerated values
1MRK 506 369-UUS - Section 5
Local HMI
Line distance protection REL670 2.2 ANSI 107
Application manual
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