Honeywell HPM, Сервисная инструкция

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4 Fault Isolation
4.12 FTA Indicators
R688 HPM High-Performance Process Manager Service 381
December 2020 Honeywell
Multifunctional Status indicator
The Status indicator on an IOP with model number that has a “Y” in the model number, such as MU-
PAOY22, has functionality beyond the description in Table 80 IOP Card Indicators. One of two colors is
normally displayed. A third color, red, is abnormal and would be an LED failure. Table 81 IOP
Multicolor Status Indicator defines the colors.
Table 81 IOP Multicolor Status Indicator
Color Status
Green
The IOP is assigned primary status.
Orange The IOP is assigned backup status. Occurs in redundant IOP
configurations.
4.12 FTA Indicators
Introduction
FTA indicators provide functional status information. The number of indicators and their purpose varies
with the type of FTA.
FTA indicator functions
The following table describes the function of the various indicators on the FTAs and associated
assemblies.
Table 82 FTA Indicators
Card Type Indicator Functionality
Power Adapter Cable Fault The red LED indicates a grounded or shorted cable when lit. There is one
indicator for each cable.
LLMux/RHMUX
Power Indicates that power is present on the FTA.
Analog Input Power
Calibration Indicates that power is present. Extinguishes for approximately 15 seconds during
a calibration cycle.
Redundant
Analog Output
Switch
Position Lit when IOP A is active and not lit when IOP B is active or either IOP is not
active. Cable A and IOP A can be replaced when the LED is not lit, and Cable B
and IOP B can be replaced when the LED is lit.
Redundant
HLAI
IOP
Availability When lit, the A IOP is the primary or available to be the primary. When not lit, the
A IOP is not available to be the primary.
Serial Device
Interface Power
Status Indicates that power is present on the FTA.
One of the following indicator conditions exists.
Not lit: The FTA self-test failed.
Slow blink:
A communication error between the FTA and
(Symmetrical 1 sec. blink) the IOP/HPMM was detected.
Fast blink: A communication error between the device (Symmetrical .5
sec. blink) and the FTA was detected.
Constantly lit:
The FTA self-test was successful and the FTA is fully
operational.