Velocity Operation Manual
www.velocitydetection.com
6
System Operating Modes and Annunciation
During Normal operation the panel will be in one of the following states depending on the status of the devices connected to the
panel, and user intervention. Below is a summary of the different conditions:
Normal Condition (Quiescent)
Trouble Condition
The following functions will be performed at regular
intervals when in normal mode:
•
Supervises all SLC devices, network devices and the
notification appliance circuits.
•
Checks for valid replies, alarms, troubles, etc.
•
Checks for power supply and battery condition.
•
Refreshes LCD displays and updates time.
•
Scans keypad for System RESET.
•
Supervises Network communications.
•
Performs time-scheduled actions (day/night
sensitivity and on/off schedules).
A typical normal display would be as illustrated below:
In the quiescent condition, the panel displays:
•
System Healthy
•
Velocity Logo
The following functions will be performed when in the
trouble condition:
•
Will cause the panel’s internal buzzer to sound with
a pulsed output.
•
The system Trouble LED will illuminate and flash.
•
Any relevant Trouble LED’s will illuminate.
•
A trouble message will be displayed on the LCD
screen.
•
The trouble relays will be switched.
•
The message is sent to the history log and printer.
If there is a trouble signal indicated from an addressable
SLC device, the reported message will show device
address, zone and the TRM port information to aid in
locating the problem. The time and date of the trouble
indication will also be shown to aid in record keeping.
A typical trouble display would be as illustrated below:
On the screen, the panel shows:
•
Trouble Icon
•
Number of trouble events
•
Details of trouble events in chronological order (showing
trouble type, zone number & label, device address & label)
•
Scroll arrows for displaying further events (if there are any).
