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GFPS-9 Supplementary Notification Appliance Circuit Installation Manual
main panel to the GFPS-9. See Figure 4-2 for more details.
The main panel supervises its notification appliance circuits used for communicating with the GFPS-9 the same
way it supervises ordinary notification appliance circuits. The signal inputs on the GFPS-9 monitor the polarity
of the voltage coming from the main panel's notification appliance circuits to determine when to operate the
notification appliance circuits on the GFPS-9. The GFPS-9 emulates the trouble behavior of a normal
notification appliance circuit by interrupting the EOL supervision current for internal or output trouble
conditions on the GFPS-9.
Note that the GFPS-9 will accurately sense the polarity of the main panel's notification appliance circuits to drive
the outputs whether or not the supervision connection is intact. The following situations will disconnect the EOL
supervision at the signal inputs and indicate a trouble condition:
•
Low AC power
•
Low Battery condition
•
Earth ground fault to the system power or system ground
•
Auxiliary output power-limited condition
•
EOL supervision trouble or power-limited condition at an output
Trouble conditions will not necessarily occur for both inputs when the trouble is specific to a particular output.
Only the signal input controlling the output circuit that is in trouble will indicate a trouble condition. Below are
examples where both inputs do NOT indicate trouble for a trouble occurring at only one output circuit.
Example 1:
Example 2:
Note:
Once the inputs are driven with forward polarity to activate the outputs, the main control panel will not be able to sense
trouble conditions through its notification appliance circuit connected to the GFPS-9 input circuits. Use the GFPS-9
trouble relay when it is necessary to monitor trouble conditions and active alarm conditions at the same time.
Section 6 explains the significance of each trouble condition in more detail.
3.3
Notification Appliance Circuit Terminals
Terminals 3 through 10 are the notification appliance circuit output terminals. Each of the four circuits are rated
at 3 amps, although you can only draw a total of 9 amps from the GFPS-9. The GFPS-9 outputs are short-circuit
protected (power limited) according to UL 864 standards. Overcurrent indicators are yellow LEDs. The output
voltage can vary depending on the load and input voltage.
The four power-limited NAC outputs can be configured as follows:
•
Four Class B circuits
•
Two Class A circuits
•
One Class A and two Class B circuits•System Sensor synchronized outputs
•
Class B, ANSI temporal-coded circuits•Wheelock synchronization outputs
• AMSECO synchronized outputs
One or both GFPS-9 signal inputs control the NAC outputs, depending on the specific configuration setup.
Possible configurations for the GFPS-9 are:
For Option:
These Inputs:
1
Input 1
If input 1 controls all four outputs, a fault on any output will cause input 1 to
indicate trouble. The fault does not affect input 2.
If input 1 controls outputs 1 and 2, and input 2 controls outputs 3 and 4, a fault
condition on output 3 or 4 will cause input 2 to indicate trouble. The fault does not
affect input 1.
•Faraday synchronized outputs
•Gentex synchronized outputs
Control These Outputs:
All outputs
Class B circuits
3-3
As:
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