Cimarron ARCONTROL BMS - INDEPENDENT Process

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Both AUTOMATIC and MANUAL modes have the following alarm states (Table 4.3.1):
4.3.2 Shutdown States
Shutdowns stop the system if the system is in an ACTIVE state and the user-dened condions of the shutdown are met.
The system has three highly congurable shutdowns which monitor the system during the ACTIVE, PILOT ON, or IDLE
states for triggerable condions. If the triggerable condions are met, the system will enter the SHUTDOWN state in
which all valves, except for the INDEPENDENT process, are closed and the ALARM output is acvated. This allows for
the system to be shut down for condions such as over-temperature, over-pressure, high- or low-level limits, PS1 or PS2
input changes, and more. The system will remain in this state unl the user clears the alarm. The system will transion
to the STOPPED state once the alarm is cleared.
4.4 INDEPENDENT Process
The INDEPENDENT process runs independently of all other system states including ALARM and SHUTDOWN states.
It connually runs if the system is powered ON and is not in the DIAGNOSTIC mode. The INDEPENDENT process will
connue even if the system is in the STOPPED state or even an ALARM or SHUTDOWN state. It is only inacve in
DIAGNOSTIC mode.
Table 4.3.1 · Alarm states
Table 4.3.2 · Shutdown states
ALARM STATE DESCRIPTION
PILOT FAILURE
The system will enter the PILOT FAILURE alarm state if it has not been able to establish pilot
ame and there is no IGNITION RETRY(s) and RECYCLE RETRY(s) remaining. The system will
remain in this state indenitely or unl the user clears the alarm.
PROOF OF CLOSURE
(POC) FAILURE
The system will enter the POC FAILURE alarm state if the Proof of Closure input is acve
during the START-UP state. The system will remain in this state indenitely or unl the user
clears the alarm.
LOW BATTERY
The system connually monitors the BATTERY-IN input voltage. The system will enter the
LOW BATTERY alarm state if the voltage detected at the BATTERY-IN input drops to or
below the BATTERY LVD -> LOW LEVEL. The system will remain in this state indenitely or
unl the voltage detected at the BATTERY-IN input is at or above the BATTERY LVD -> OK
LEVEL and the user clears the alarm.
PERMISSIVE OPEN
The system connually monitors the Permissive input. The system will enter the
PERMISSIVE OPEN alarm state if the Permissive input becomes acve. The system will
remain in this state indenitely or unl the Permissive input is no longer acve and the user
clears the alarm.
BMS FAULT
The BMS Module connually runs self-test to ensure its proper operaon. It connually
reports the status of these test to the ARControl.
The system will enter a BMS FAULT alarm state if the BMS Module has detected a lockout
condion or if the system stops receiving communicaon from the BMS Module. The
system will remain in this state unl the BMS Module lockout condion is remedied and the
user clears the alarm.
SHUTDOWN STATE DESCRIPTION
SHUTDOWN 1
The system will enter a SHUTDOWN state if any of the SHUTDOWN(s) condions are met
while the system is in any of the ACTIVE, PILOT ON, or IDLE states. In the SHUTDOWN
state, the system closes all valves, except for the independent process valve, and acvates
the ALARM output. The system will remain in this state unl the user clears the alarm. The
system will transion to the STOPPED state once the alarm is cleared.
SHUTDOWN 2
SHUTDOWN 3