Simplex Installation Instructions External Battery Charger

External Battery Chargers
Installation Instructions
This publication describes the installation procedure for an External Battery Charger used with the
4100U or 4100ES System.
IMPORTANT: Verify FACP System Programmer, Executive, and Slave Software
compatibility when installing, or replacing system components. Refer to
the Technical Support Information and Downloads website for
compatibility information.
In this Publication
This publication discusses the following topics:
See Page #
Cautions and Warnings
General Description
Configuring the External Battery Charger
Locating and Wiring the External Battery Charger
 2002-2011 SimplexGrinnell LP. All rights reserved.
Specifications and other information shown were current as of publication and are subject to change without notice.
Simplex and the Simplex logo are trademarks of Tyco International Ltd. and its affiliates and are used under license.
Rev. D
Cautions and Warnings
Cautions and
READ AND SAVE THESE INSTRUCTIONS- Follow the instructions in this installation
manual. These instructions must be followed to avoid damage to this product and associated
equipment. Product operation and reliability depend upon proper installation.
unpacking your Simplex product, inspect the contents of the carton for shipping damage. If
damage is apparent, immediately file a claim with the carrier and notify an authorized
Simplex product supplier.
ELECTRICAL HAZARD - Disconnect electrical field power when making any internal adjust-
ments or repairs. All repairs should be performed by a representative or authorized agent of
your local Simplex product supplier.
EYE SAFETY HAZARD - Under certain fiber optic application conditions, the optical output
of this device may exceed eye safety limits. Do not use magnification (such as a microscope
or other focusing equipment) when viewing the output of this device.
STATIC HAZARD - Static electricity can damage components. Handle as follows:
Ground yourself before opening or installing components.
Prior to installation, keep components wrapped in anti-static material at all times.
FCC RULES AND REGULATIONS – PART 15 - This equipment has been tested and found to
comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference when
the equipment is operated in a commercial environment. This equipment generates, uses, and
can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of
this equipment in a residential area is likely to cause harmful interference in which case the
user will be required to correct the interference at his own expense.
system operation, this product must be tested in accordance with NFPA72-1996, Chapter 7
after any programming operation or change in site-specific software. Reacceptance testing is
required after any change, addition or deletion of system components, or after any
modification, repair or adjustment to system hardware or wiring.
All components, circuits, system operations, or software functions known to be affected by a
change must be 100% tested. In addition, to ensure that other operations are not
inadvertently affected, at least 10% of initiating devices that are not directly affected by the
change, up to a maximum of 50 devices, must also be tested and proper system operation
General Description
The external battery charger (XBC) consists of the battery charger PC board bracket assembly and
the external battery cabinet. The external battery charger (XBC) is a communicating slave in a
4100U/4100ES System. A micro controller monitors all input and output functions on the charger
and is capable of reporting all board statuses to the system CPU via a 4100-style communications
channel. The XBC monitors and reports the following statuses:
Battery charger status
Battery status
Positive earth fault
Negative earth fault
AC fail
Both the battery cabinet and charger are shown in Figure 1.
Battery Cabinet
Bracket Assembly
(shipped separately)
Battery Charger
PC Board
Figure 1. Battery Cabinet and External Charger
Continued on next page
General Description, Continued
Charging Batteries
The XBC can re-charge 55Ah – 110Ah batteries per UL 864 and S527 requirements. When
completely discharged, the batteries will demand a high current. As the battery charges, the rate
of charge will decrease. The table below shows specific voltage and current information for both
the supply and output of the battery charger.
Table 1. System Voltage Ratings
Voltage Range, Amps
Supply Current
At 120VAC, 4A Max.
At 220/230/240VAC, 2A Max.
Output Float Voltage
*27.4V DC +/-500mV @ 20°
High Voltage Output
**29.1VDC @ up to 7A (charger voltage
determined by battery charge state)
*temperature compensated at –24mV/°C (-5°C – 50°C)
**no temperature compensation
If the AC line drops below 85% of nominal (brownout or AC fail), the XBC will no
longer charge the batteries. It will continue to operate and communicate to the system
CPU, however.
The XBC is a temperature compensated battery charger. It has no field adjustment. The charger
voltage is higher when the temperature in the cabinet is low and lower when the temperature in the
cabinet is high. A warmer environment than that noted in the table above will result in a lower
output float voltage (see Table 1).
The High Voltage Output shown above relates to the battery charger’s dual rate ability. The high
voltage output kicks in when the batteries are discharged. This allows battery capacity to be
restored more quickly. When the batteries become close to full, the current will drop and the
charger will switch back to the “float” voltage.
Continued on next page
General Description, Continued
The charger controller board contains three LED indicators for signaling various troubles with the
operation of the system. They are used to indicate communications status, power supply status,
and AC power status respectively. The tables below explain the trouble conditions of each LED.
Table 2. LED 1 COMMS Status
On Yellow
with CPU or
is set that way)
Table 3. LED 2 Power Supply Status
Single Blink
Double Blink
Triple Blink
Quadruple Blink
POS. Earth
NEG. Earth
Battery Trouble
Charger Trouble
Table 4. LED 3 AC Power
On Green
Indicates charger
running from AC
Normal Operating Temperature (Ambient Conditions Outside the Cabinet): -5°C to 50°C
normal operation under non-condensing humidity conditions up to 93% (ULC)
relative humidity @ 38°C (FM spec).
Configuring the External Battery Charger
The External Battery Charger (XBC) is configured as part of a 4100 system in two steps.
It must be programmed as part of the system. Use the PC-based 4100U or 4100ES
Programmer to add the XBC to the system configuration. This will assign a system address
used when communicating with the XBC. Refer to the ES Panel Programmer’s Manual
(574-849) for instructions on adding the XBC to the system software configuration. Adding
the XBC is similar to adding any other communicating slave to the system.
The physical configuration of the board must be set. This includes setting the card address
and positioning the hardware jumpers on the card.
This section explains how to configure the battery charger and includes an illustration referring to
the different components on the battery charger controller card.
4100 Communications
Jumper R49
(Remove for S527)
Jumper P3
Bridge Rectifier
Figure 2. External Battery Charger Controller Card
Continued on next page
Configuring the External Battery Charger, Continued
The External Battery Charger has two options that are jumper selectable: the Earth Fault Monitor
Jumper and the Depleted Battery Cutout Jumper. Their functions are explained below.
Earth Monitor
The XBC can be configured to monitor for earth faults. When the XBC is not located with an
SPS or RPS, it should be configured to monitor for earth faults.
Set jumper P3 at positions 1 and 2 to enable the monitoring of earth faults
Set jumper P3 at positions 2 and 3 to disable the monitoring of earth faults
When earth monitor is enabled, the XBC will detect earth faults on equipment that is
connected to the same “OV” as the XBC. When RUI communications are used, “OV” points
between cabinets are isolated. In those cases, a battery charger, SPS or RPS at a remote
location is configured to monitor for earth faults for modules at that location.
Depleted Battery Cutout
Some jurisdictions require system cutout when a depleted battery condition is detected and
AC has failed. You can set your system up to remove power from the XBC when the AC has
failed and the batteries are depleted.
This is different than inhibiting alarms that occur after the batteries are
already depleted. This operation shuts the system off.
To activate this feature, “Low Battery Cutout” option must be selected in the Programmer.
Refer to Appendix C in manual 574-849. Also, a specific jumper must be removed from each
power module in the system to activate depleted battery cutout operation. The XBC has one
such jumper.
If depleted battery cutout is desired, remove jumper R49. The jumper is labeled “remove for
S527” as this operation is specified in S527, the Canadian standard for fire alarms. This
removes power from the XBC when AC fails and batteries are depleted.
Systems with this jumper removed will not power-up from battery power.
Continued on next page
Configuring the External Battery Charger, Continued
Address Switch
The card address assigned to the XBC in the Programmer must also be set physically using the
Address Switch located on the XBC’s printed circuit board. The switch is 8 positions, with 7
positions used to set the address and 1 used to set the card either on or off line. SW8 – SW2 are
used to set card addresses. SW8 is the least significant bit (LSB). SW2 is the most significant bit
(MSB). Each switch has a different “weight.” The sum of the weights of the switches turned OFF
is the address setting. Valid addresses are in the range of 1 to 119. Two cards cannot occupy the
same address.
Table 5. Switch Weights
Add 1 to card address if OFF
Add 2 to card address if OFF
Add 4 to card address if OFF
Add 8 to card address if OFF
Add 16 to card address if OFF
Add 32 to card address if OFF
Add 64 to card address if OFF
The card is set either on or off-line with SW1. SW1 in the on position sets the card on-line. If
SW1 is off, the card is off-line and will not communicate to the system CPU. LED 1 (yellow) on
indicates that the card is off-line or when communications are otherwise inhibited.
Locating and Wiring the External Battery Charger
Connect AC Power
The external battery charger must be within 20 feet of the Fire Alarm Panel to which it
supplies battery backup.
All wiring to the external battery charger from the Fire Alarm Panel must be in conduit.
All power and comm. wiring is in compliance with the requirements specified in NFPA 70,
Article 760-54 (1), Exception No.2 (b) (1).
AC power connects to the XBC at an off-board terminal block. There are two versions of the
XBC: the 120V/60Hz and the 220/230/240V 50/60Hz model.
For the 120V version, three connections are made:
Connect the HOT wire to the terminal marked 120V.
Connect the NEUTRAL wire to the terminal marked NEU.
Connect the safety ground to the ground stud marked with the EARTH symbol.
For the 220/230/240V version, the same three connections are made only there are three different
choices for input voltage. Therefore, the HOT wire should be connected to the appropriate
terminal for the operating voltage being used.
Connect the Battery
The XBC connects to the batteries through a battery block. A two-conductor harness from the
battery block snaps into a keyed connector on the XBC circuit board. The RED wire is +24V and
the BLACK wire is OV. The harness does not carry the alarm load. It carries the current to the
batteries only, which is about 7A maximum.
The battery block can accept very large wire (up to 2AWG) in order to minimize the voltage drop
to the equipment. When choosing the wire gauge to be used, consideration must be given to the
details of each application. A system with a high worst-case load requires careful planning of the
distance from the batteries to the system, wire gauge choice, and worst-case battery voltage. It is
always best to use the largest gauge wire possible and to keep the distance to a minimum. Using
12 AWG wire results in a voltage drop of about 4mV/Ampere/foot. The drop is quite significant
(see example).
Wire gauge = 12 AWG
System with 3 Power Supplies = potential load of 27A
Battery Cabinet distance from System = 20ft.
Therefore, Voltage Drop =
.004V * 27A * 20ft. = 2.16V
If the battery discharge curves with an end voltage of 21V were used, the voltage to the
system would be too low to provide the required notification.
The system must be planned to avoid situations such as those described in the example.
Generally, locate the battery cabinet as close to the FACP cabinet as possible and use as large a
wire gauge as possible.
Another way to reduce voltage drop is to use multiple cabinets when current
demand is high. Running a pair of wires to each cabinet reduces the overall
voltage drop since each pair of wires carries a lower current.
Continued on next page
Locating and Wiring the External Battery Charger, Continued
The communications (comms) harness, 734-083, is connected from a close-nippled
4100U/4100ES cabinet. The harness is constructed with type FPL cable to allow
routing with the other connections to the XBC (refer to NFPA 70, Article 760-54 (1),
exception no. 2 (b) (1)). The harness is keyed for easy connection and plugs into
connector P1 on the XBC. The other end gets connected to any of the four-position
connectors on the PDI or CPU motherboard in the host system. This harness is long
enough to allow for the maximum distance of 20 feet between the Fire Alarm Panel
and the External Battery Charger.
Connect the Bridge
Use harness number 734-020 to connect H1 and H2 to the bridge rectifier.
+Bridge Rectifier (red wire)
-Bridge Rectifier (black wire)
Rev. D
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