A7™ Operating Instructions 046-004667-00 6 - 23
Alarms and Messages Alarm and Prompt Messages
6.6.2.5 Ventilator Control Board Runtime Alarm
No Fresh Gas The flows of O
2
and balance
gas are less than 0.05 LPM for
continuous 5 s.
Medium Runtime No
Backup Flow
Control
Deployment
Failure
Solenoid Actuator Error High Runtime No
Backup Flow
Control
Retraction Failure
Stepper Motor Error Medium Runtime No
Air Supply Failure Air Supply Pressure Low Medium Runtime No
N
2
O Supply
Failure
N
2
O Supply Pressure Low Medium Runtime No
Backup Flow
Control
Valves Open
Needle Valve is not closed
Medium Runtime No
BFCS is not closed
Backup Flow
Control is
enabled
Backup Flow Control is
enabled
Low Runtime No
Flowmeter Comm
Stop
Lost communication with cpu
board for 10 seconds. The
Flowmeter Comm Stop will
be detected by both Main
board CPU and Flowmeter
CPU.
Medium Runtime No
Backup Flow
Control Error
BFCS Deployment
Position sensor Error
Medium Runtime No
BFCS Retraction
Position sensor Error
LED Power Voltage too low
LED Power Voltage too high
MESSAGE CAUSE
ALARM
PRIORITY
MACHINE
MODE WHEN
CHECKED
DISABLE IN
STANDBY
MODE
* N/A - Not Applicable. This alarm message does not exist within this mode and therefore cannot be
disabled or enabled.
TABLE 6-7 Electronic Flow Control System Runtime Alarm Messages
MESSAGE CAUSE
ALARM
PRIORITY
MACHINE
MODE WHEN
CHECKED
DISABLE IN
STANDBY
MODE
Aux Control
Module Comm
Stop
Lost communication with
CPU board for 10 seconds.
High Runtime No
Ventilator Voltage
Error
5 V or 12 V voltage error High Runtime No
* N/A - Not Applicable. This alarm message does not exist within this mode and therefore cannot be
disabled or enabled.
TABLE 6-8 Ventilator Control Board Runtime Alarm Messages
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