Parameter Management; Front Communication - Hitachi 650 Series Operation Manual

Section 4
Overview
Table 9:
LED state
OFF
ON
Flashing
4.1.4.3

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.
4.1.4.4

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.
IEC13000280-1-en.vsd
GUID-AACFC753-BFB9-47FE-9512-3C4180731A1B V1 EN-US
Figure 9:
1 RJ-45 connector
2 Green indicator LED
26
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.
2
1
RJ-45 communication port and green indicator LED
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650 series
Operation manual