Honeywell HPF24S6 Installation Manual - Page 27

AC Loss Reporting Delay, Refer to Aux. Trouble Relay/AC Fail Relay

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AC Loss Reporting Delay Trouble Supervision • With SW1 switch 4 set to the ON position, AC Fail/brownout reporting will be delayed 2 hours and the following trouble conditions will cause the normally energized Aux. Trouble Relay to change states regardless of whether the panel is in alarm or standby: - An AC fail condition at the power supply - A battery fail condition at the power supply - A battery charger fail on the power supply - A ground fault condition on the power supply (zero impedance between the power supply and ground - A field wiring fault on the NAC output of the power supply. (If the panel is in alarm, only a short circuit on the NAC will be detected as a trouble) NOTE: The NAC Trouble LED will indicate which NAC circuit is in trouble by blinking once for Circuit 1, twice for Circuit 2, three times for Circuit 3 and four times for Circuit 4. If more than one circuit is in trouble, the LED will blink the highest circuit number in trouble. • With SW1 switch 4 set to the OFF position, AC Fail/brownout reporting will occur immediately and the Aux. Trouble Relay will change state only for AC Fail/brownout conditions. A monitor module can be used to monitor the relay for AC fail. SLC Monitor Module ELR HPF24S6/8 NO NC Aux. Trouble Relay T7 T6 Monitor Module* *If the SLC device does not match the one in this figure, refer to the SLC manual wiring conversion charts for legacy and newer versions of the modules. 4.2 AC Loss Reporting Delay The reporting of AC loss to a central station is usually delayed in order to prevent multiple transmissions of AC loss and restoral, thus allowing AC power to stabilize. When a host FACP is programmed to delay AC loss reporting, the HPF24S must be configured to delay the reporting of AC fail. This is accomplished by setting SW1 DIP switch 4 to the ON position. This will prevent AC loss from being reported as a trouble condition for two hours. Changing the AC Loss Reporting setting will also affect the functioning of the Trouble Relay. Refer to "Aux. Trouble Relay/AC Fail Relay" on page 26. Note that the HPF24S power supply will immediately indicate loss of AC power by turning off the AC Power LED and turning on the Charger Trouble/AC Loss LED, regardless of the setting of SW1 DIP switch 4. HPF24S Series Power Supplies - P/N 52751:F2 7/11/2014 27

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HPF24S Series Power Supplies —
P/N 52751:F2
7/11/2014
27
AC Loss Reporting Delay
Trouble Supervision
•
With SW1 switch 4 set to the ON position, AC Fail/brownout reporting will be delayed 2 hours
and the following trouble conditions will cause the normally energized Aux. Trouble Relay to
change states regardless of whether the panel is in alarm or standby:
–
An AC fail condition at the power supply
–
A battery fail condition at the power supply
–
A battery charger fail on the power supply
–
A ground fault condition on the power supply (zero impedance between the power supply
and ground
–
A field wiring fault on the NAC output of the power supply.
(If the panel is in alarm, only a
short circuit on the NAC will be detected as a trouble)
•
With SW1 switch 4 set to the OFF position, AC Fail/brownout reporting will occur
immediately and the Aux. Trouble Relay will change state
only
for AC Fail/brownout
conditions.
A monitor module can be used to monitor the relay for AC fail.
4.2
AC Loss Reporting Delay
The reporting of AC loss to a central station is usually delayed in order to prevent multiple trans-
missions of AC loss and restoral, thus allowing AC power to stabilize.
When a host FACP is pro-
grammed to delay AC loss reporting, the HPF24S must be configured to delay the reporting of AC
fail.
This is accomplished by setting SW1 DIP switch 4 to the ON position.
This will prevent AC
loss from being reported as a trouble condition for two hours.
Changing the AC Loss Reporting setting will also affect the functioning of the Trouble Relay.
Refer to “Aux. Trouble Relay/AC Fail Relay” on page 26.
Note that the HPF24S power supply will immediately indicate loss of AC power by turning off the
AC Power LED and turning on the Charger Trouble/AC Loss LED, regardless of the setting of
SW1 DIP switch 4.
NOTE:
The NAC Trouble LED will indicate which NAC circuit is in trouble by blinking once for
Circuit 1, twice for Circuit 2, three times for Circuit 3 and four times for Circuit 4.
If more than one
circuit is in trouble, the LED will blink the highest circuit number in trouble.
SLC
Monitor Module*
Aux. Trouble Relay
Monitor Module ELR
HPF24S6/8
T7
T6
NO
NC
*If the SLC device does not
match the one in this figure, refer
to the SLC manual wiring con-
version charts for legacy and
newer versions of the modules.