Parameter Management; Front Communication - Hitachi Relion 670 Series Applications Manual

1MRK511407-UUS 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 11:
LED state
Disabled
Enabled
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.
Phasor measurement unit RES670
Application manual
Alarm indications
Description
Normal operation. All activation signals are Disabled.
• Follow-S sequence: The activation signal is Enabled.
• LatchedColl-S sequence: The activation signal is Enabled, 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
Enabled.
• LatchedAck-S-F sequence: The activation signal is Enabled, or it is off but the indication has not
been acknowledged.
• LatchedReset-S sequence: The activation signal is Enabled, or it is off but the indication has not
been acknowledged.
• Follow-F sequence: The activation signal is Enabled.
• LatchedAck-F-S sequence: The activation signal is Enabled, 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
Enabled.
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Section 5
Local HMI
GUID-5EE466E3-932B-4311-9FE1-76ECD8D6E245 v9
GUID-FD72A445-C8C1-4BFE-90E3-0AC78AE17C45 v14
75