Honeywell SEC-H-602 Manual page 25

unable to hold a sufficient charge, as well as whenever
primary power is lost. You should always investigate any
alarm related to backup batteries.
Backup Battery
The sealed lead-acid backup battery is an external, 12V,
rechargeable battery (or multiple batteries) sized to
operate the system during loss of primary power, for some
duration. This includes the Security Controller, including
power to attached readers and onboard relays, plus any
"chained" expansion modules (and their attached readers
and relays). For related details, see "Estimating Power
and Battery Requirements," page 6.
NOTE: A maximum 2.5 A load can be powered
through the PS-, PS+, BB terminals on the
Security Controller. See "Maximum Output
Load Considerations," page 8.
You connect the backup battery to the Security Controller
using two terminals of a 4-position connector—see Fig.
16 on page 24. Whenever primary-powered, the Security
Controller supplies a constant "trickle" charge to this
battery, at 200mA maximum. At startup (boot), a test of
the backup battery is performed, as well as a periodic
test. A system alarm is generated if a battery test deems
the backup battery to be bad.
Providing that the backup battery has tested good, upon
loss of primary power the system operates from this
backup battery power until the charge level of the onboard
NiMH battery pack reaches 0. Note that both batteries
discharge in parallel. However, as the sealed lead-acid
backup battery capacity is much greater, the NiMH battery
pack discharges much slower than if these backup
battery(ies) were bad or not present.
NOTE: If the backup battery test was "bad," upon
loss of primary power, the Security Controller
performs an immediate shutdown, backing
up data and powering off (including attached
readers, expansion modules).
You should replace the sealed lead-acid backup
battery(ies) approximately every three years, or more
often if the unit is in a high temperature environment.
NiMH battery pack
A custom 10-cell NiMH (nickel metal hydride) battery pack
is mounted onto the unit, under the cover—see Fig. 15 on
page 24. This battery allows the Security Controller to
continue station operation (only) through very short power
bumps, meaning a few seconds in duration. If a longer
outage, the NiMH battery provides enough run time for
the unit to backup data and then shutdown. Typically, this
process takes about one minute. Shutdown occurs
automatically, after data is backed up to on-board flash
memory.
Upon startup (boot), a test of the NiMH battery is
performed. A system alarm is generated if the NiMH
battery voltage level is found to be bad. A charge is also
initiated upon startup, which lasts from 3 hours minimum,
and can range up to 18 hours if the battery is completely
discharged. During this NiMH battery charge period,
neither the NiMH battery or the Backup Battery is tested.
After the startup NiMH charge period, a periodic test of
both batteries occurs, and the appropriate battery alarm is
generated is either battery is found to be bad.
NOTE: If the last NiMH battery test was "bad," upon
loss of primary power the Security Controller
performs an immediate shutdown, backing
SEC-H-602 AND SEC-H-616 SECURITY CONTROLLER
up data and powering off (including attached
readers, and expansion modules).
A NiMH battery characteristic is to lose
charge if not left in charge mode (trickle
charge). Leaving the battery unconnected, or
in the unit powered off will cause the battery
to fully discharge in a matter of weeks. Note
that in the case of a new Security Controller,
it ships from the factory with a completely
discharged battery. Therefore, allow at least
18 hours for the battery to charge if it has not
been in a powered unit.
You should replace the NiMH battery pack approximately
every three years, or more often if the unit is in a high
temperature environment. For more information on the
use and replacement of the NiMH battery, refer to the
"Required NiMH Battery Maintenance," page 28.
UL REQUIREMENTS
This section provides requirements for a UL 294 Listed
system. Failure to install the Security Controller and its
expansion modules in accordance with these instructions
voids the listing mark of Underwriters Laboratories, Inc.
NOTE: This product is not Listed to UL 1076. For UL
Listed systems, this product should not be
programmed or configured for burglar alarm
functions.
• Mounting and Wiring
• Compatible Readers
• Battery-backed Power Supplies
Mounting and Wiring
1. The Security Controller must be mounted in a
WEBs-AX Security Enclosure, model SEC-ENC-H-
1/U or SEC-ENC-H-2/U, which provides an integral
15Vdc power supply (NPB+PWR+UN+H/U) to power
the unit. Expansion modules must also be mounted
in WEBs-AX Security Enclosures, either (the same
or different) enclosure, depending on number and
location of expansion modules needed.
2. Enclosures must be mounted inside the secured
area.
3. Grounding must be in accordance with Article 250
of the National Electrical Code.
4. Digital input DI1 of the SEC-H-602 must be wired to
the door tamper switch of its enclosure. See Fig. 12
on page 20. If additional WEBs-AX Security Enclo-
sures are used in the system, each door tamper
switch must also be wired to DI1 of one of the con-
tained expansion modules.
5. Only UL listed, 12V Wiegand-type readers can be
used with the system.
6. Exit request input circuits and initiating devices
must be contained within the secured area. Exit
device circuits must be connected to UL listed
switches or exit devices.
7. Door strike power must be provided from a UL listed
burglar alarm system power supply. When required
in accordance with NFPA 101, if the door strike cir-
cuit is arranged as fail secure (door remains locked
upon loss of power), UL listed emergency panic
hardware must be provided to allow exit from the
secured area. A fail-safe configuration results in the
door strike circuit unlocking in case of a power loss.
8. Audible signal appliance circuits, such as shown in
Fig. 11 on page 19, are for supplementary use only.
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