Alarm Handling - List of all alarms
Part No.: 4418309_Rev09 Fusion4 MSC-L
Honeywell Installation & Operation Manual 6 - 15
6.8.5 Additive Stream Alarms
Alarm Cause
Leaking valve Volume accumulated on the additive stream meter within
the
[leaking timeout period] is more than the [leaking
Volume limit] (when the stream is idle or in between
injections.)
No additive The
[number of retries] * [no additive timeout] is elapsed
after the additive pulses stop during a batch.
As soon as the additive solenoid opens, the timer
[no
additive timeout] starts.
No pump The pump feedback signal is not detected within the
[pump
feedback timeout]. It is only possible if the I/O binding for the
pump is ON/OFF and the pump indications are configured.
Block valve fault The block valve feedback signal is not detected within the
[block valve feedback timeout].
It is only possible if the I/O binding for the block valve is ON/
OFF and the block valve indications are configured.
Low volume deviation The average of the additive injection volume calculated over
the configured number of cycles is lower than the additive
deviation percentage. The
alarm is evaluated after every injection.
With the entity
[Additive volume deviation], the acceptable
deviation can be set.
With the entity
[Number of cycles before deviation alarm
evaluation], the number of additive injection cycles that are
used for calculating the average of the injection volume for
the deviation calculations can be set.
High volume deviation The average of the additive injection volume calculated over
configured number of cycles exceeds the additive deviation
percentage. The alarm is evaluated after every injection.
With the entity
[Additive volume deviation], the acceptable
deviation can be set.
With the entity
[Number of cycles before deviation alarm
evaluation]
, the number of additive injection cycles that are
used for calculating the average of the injection volume for
the deviation calculations can be set.
Control fault The MSC-L is not configured appropriately and does not
have sufficient time to handle all the inject triggers.
NOTE: The maximum number of triggers that can be stored
inside the buffer is 10.
Solenoid fault The system cannot activate or deactivate the solenoid. (This
is an internal firmware control failure).
Pulse hardware fault The pulse input module detects the following error
conditions.
• Reading information from the Pulse Input processor.
• Pulse overflow errors.
• BAD health of the pulse input function.
Pulse phase fault The dual pulse input are out of phase.
It is only possible if the MSC-L is configured for quad pulse.
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