Chapter 3: Operating instructions
P/N 3101890-EN • REV 006 • ISS 21JUN18 31
Operating states
The VM-1 control panel operates in the normal, alarm, disable, supervisory, trouble, monitor, test, and drill states.
Normal state
The system operates in the normal (or quiet) state in the absence of any events. In the normal state, only the
Power LED is on and the LCD screen shows the time, date, custom banner (if programmed), and the Alarm
History count (see Figure 5 on page 16).
Alarm state
The control panel enters the alarm state (system off-normal) when a point signals an alarm event. For example, a
detector, manual pull station, or waterflow switch is activated.
Output of the alarm state
Upon entering the alarm state, the control panel:
• Activates all common alarm outputs and common alarm relays
• Activates the common alarm contact on the main board
• Activates the first alarm pseudo point
• Changes the active state for the point that signaled the alarm event
Indication of the alarm state
To indicate it is in the alarm state, the control panel:
• Sounds the panel buzzer
• Flashes the Alarm LED
• Displays an event message in the Alarm Queue for the point that signaled the alarm event
If the active point is an alarm zone and a control-indicating module is installed, the control panel also flashes the
zone’s alarm LED on the module.
Disable state
The control panel enters the disable state when a point signals that a system component is disabled.
When a point is disabled, the control panel does not process any of the point’s status changes and the point
remains in its current state. For example, if an audible device type in the normal state was disabled and
subsequently activated, the audible device type would not turn on until it was enabled. Conversely, if an active
audible device type were disabled and subsequently restored, the audible device type would not turn off until it
was enabled.
If a point in trouble is disabled and the cause of the trouble changes while the point is disabled, the point’s original
trouble event message may not update when the point is enabled.
Note: For anything other than a zone, use the Disabled Points command on the Status Menu to identify a
disabled point.