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9: SMS Pause/Stop
Exit If Aux Out 16 On 00:00
Projector Digital 1 Vid Off 00:00 Pause/Stop the SMS
The Set VM Flag macro sets the Voltage Monitoring (VM) flag to prevent an unwanted pause
message.
10: Set VM Flag
Exit If Aux Out 16 On 00:00 Set VM Flag
Voltage Monitor Example 2
In this example, a 10 second timer starts when the line voltage drops below 185 volts. If the voltage
goes above 185 volts before the timer reaches 10 seconds, the timer is reset and the SMS will
continue to play. If the timer expires, the SMS will be paused. If the voltage is restored before 1
minute, the SMS is restarted if the voltage is okay for 5 seconds. If the voltage is restored after 1
minute, the SMS remains paused.
The Aux Out 16 output control flag is used as the Voltage Monitoring (VM) control flag. If the voltage
returns to the okay condition after 1 minute, the VM flag is set. This prevents the SMS from
restarting if the voltage is restored. The flag must be cleared so the eCNA is ready to sense the next
power outage. This should happen on a start or resume by setting Aux Out 16 = Off with an output
command or a macro.
LVM-250 Settings:
Lower Voltage Threshold = 185 Volts
Upper Voltage Threshold = 190 Volts
Voltage Low Event Hold-Off Time = 10 seconds
Voltage Low Window Time = 1 minute
Voltage OK Event Hold-Off Time = 5 seconds
Trigger Assignments:
The following trigger assignments are used in this example.
Name Controlled by Calls Macro
Line Fault Line Voltage Low 9: SMS Pause/Stop
Set VM Flag Line Voltage OK 2 10: Set VM Flag
Line Okay Line Voltage OK 1 11: SMS Strt/Resum
Macros:
The SMS Pause/Stop macro (macro 9) is called when the Line Voltage Low event pauses the SMS
only if the Voltage Monitoring (VM) flag is cleared.
9: SMS Pause/Stop
Exit If Aux Out 16 On 00:00
Projector Digital 1 Vid Off 00:00 Pause/Stop the SMS
The Set VM Flag macro (macro 10) sets the Voltage Monitoring (VM) flag.
10: Set VM Flag
Exit If Aux Out 16 On 00:00 Set VM Flag
The SMS Strt/Resum macro (macro 11) resumes the SMS only if the Voltage Monitoring (VM) flag is
cleared.
11: SMS Strt/Resum
Exit If Aux Out 16 On 00:00
Projector Digital 1 Vid On 00:00 Resume the SMS
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eCNA-10 Operation and Installation Manual Version 1.270-00
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