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7-8 Configuration and User Guide
Fault Details
DIOM (Digital Input Output Monitor) Faults
The following faults can be raised by the DIOM component:
• DigitalAlarmInForce
• DigitalRaiseInputAlarm1
• DigitalRaiseInputAlarm2
• DigitalRaiseInputAlarm3
• DigitalRaiseInputAlarm4
ENVM (Environmental Monitor) Faults
If an environmental card is used the following faults can be raised by the ENVM component:
• BlowerConditionFaulty (Error)- the blower condition may be GOOD or FAIL. Since the
environmental card hardware contains two blowers, the reported condition is the worst for both
blowers. Therefore, if one blower fails, but the other works correctly, the condition will be
reported as “Fail”.
• TemperatureTooHigh (Warning)- this fault is raised when the internal temperature of the
enclosure is equal to or exceeds the value MAX_TEMPERATURE held in ENVM.conf. Once an
alarm is generated and the temperature drops to a level 1 degree below the
MAX_TEMPERATURE value the fault is then automatically cleared. This is to avoid transient
changes in temperature around the threshold.
• TemperatureTooLow (Warning) - a fault is raised when the internal temperature of the
enclosure is equal to or is below the value MIN_TEMPERATURE held in ENVM.conf. Once an
alarm is generated and the temperature drops to a level 1 degree above the
MIN_TEMPERATURE value the fault is then automatically cleared. This is to avoid transient
changes in temperature around the threshold.
• HumidityTooHigh (Warning) - a fault is raised when the humidity of the enclosure is equal to or
above the value MAX_HUMIDITY held in ENVM.conf. Once an alarm is generated and the
humidity drops to a level 1% below the MAX_HUMIDITY value the fault is then automatically
cleared. This is to avoid transient changes in temperature around the threshold.
• TemperatureOrHumiditySafeMode (Error)- the “Safe ON” and “Safe OFF” operational modes
indicate that the environmental card software detected a failure in the temperature or humidity
sensor and turned the blowers and heaters to the safe default state. The blower safe default
state is “Safe ON”. The heater safe default state is “Safe OFF”.
ENVM Card Upgrade Progress
When an environmental card is being updated with new software the following faults can be raised
by the EnvLoadSofwareFile component:
• LoadSoftwareFile (Critical) - this is generated if the software load fails. It is given a critical
severity as the environmental card may be rendered inoperable. If this error occurs it may be
necessary to reprogram the environmental card with the boot loader.
• LoadSoftwareFile (Error) - this is generated if the software file is not standardised or has a
version number that is older than the current version installed. To prevent this error ensure that
all software is provided by American Dynamics.