Hitachi Relion 670 Series Applications Manual page 75

1MRK506375-UEN Rev. N
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:
LED state
OFF
ON
Flashing/
blinking
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
Numerical values are presented either in integer or in decimal format with minimum and maximum
values. Character strings can be edited character by character. Enumerated values have a
predefined set of selectable values.
5.4.3 Front communication
The RJ-45 port in the LHMI enables front communication.
• The green uplink LED on the left is lit when the cable is successfully connected to the port.
• The yellow LED is not used; it is always off.
Railway application RER670
Application manual
Alarm indications
Description
Normal operation. All activation signals are OFF.
• 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.
• 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.
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Section 5
Local HMI
GUID-5EE466E3-932B-4311-9FE1-76ECD8D6E245 v9
GUID-FD72A445-C8C1-4BFE-90E3-0AC78AE17C45 v14
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