Securitron BPSS-10, BPSS-20 Installation Instructions

Securitron Magnalock Corp. www.securitron.com ASSA ABLOY, the global leader

Tel [phone] [e-mail]

in door opening solutions

SOLAR POWER SUPPLY MODELS BPSS-10 AND BPSS-20

INSTALLATION AND OPERATING INSTRUCTIONS

1. INTRODUCTION

The Solar Power Supply models BPSS-10 and BPSS-20 combine Securitron’s renowned power
supply technology with solar capability for access control in remote/iso lated locations. The BPSS
controller, contained in a NEMA-3R rated cabinet, is specifically designed for outdoor applications
and is provided with its own separately mounted, adjustable solar PV array power panel and
battery backup. Each unit operates at 12 VDC and is intended to operate an access control
device (e.g. DK-26 keypad or card access system) and fail secure intermittent lock (e.g. GL-1
gate lock or electric strike). This manual is intended to provide the installation, electrical
requirements and functional options required to successfully install a BPSS unit.

2. SPECIFICATIONS
Power Supply Cabinet

MODEL BPSS-10/BPSS-20 Power Supply Specifications

Use/Environment

Cabinet Weight (without batteries)

Cabinet Dimensions: Length

Height

Depth

Voltage

*Maximum Output Current – Continuous

*Maximum Output Current – While Operating Lock

Operating Temperature Range

(with batteries)

10 Watt

PV Array Panel

Outdoor (NEMA-3R)

14 Lbs [6.4 kg]

12.8” [325mm]

12.2” [310mm]

4.7” [119mm]

11.5-14.1 Volts DC
*Up to 125mA
*Up to 425mA

-4° to +113° F

[-20° to +45° C]

20 Watt

PV Array Panel

*Number of daily lock operations may vary due to solar activity and system current draw.

3. RECOMMENDED TOOLS

 Hammer
 Center Punch
 Power Drill
 Drill bits

 Wrenches
 Pliers, vise grip
 Screwdrivers: Phillips & 1/8”

Flat Blade

 Fish Tape or Lead Wire
 Wire Strippers/Cutter
 Multimeter

4. INSTALLATION INSTRUCTIONS

It is recommended that a site survey be performed to determine the mou nting location prior to
installation. The following should be considered:

 The unit should be placed in a position without obstruction of the sun which will allow

optimum use of the PV array panel.

 Physical strength of mounting areas should provide adequate support of the installed unit.
 Adequate space should be provided for ventilation. Ensure that there is at least 2” of

unobstructed space provided around the four sides of the enclosure.

 Ensure wiring can be routed to protect from damage due to intrusion or vandalism. (The

enclosure is provided with knock-outs for conduit connections).

© Copyright, 2011, all rights reserved PN# 500-22125
Page 1 Rev. D, 08/11

4.1 Physical Installation

The BPSS controller is rated for outdoor use and is specifically designed to be affixed to a pole or
post up to 2” O.D. (outer diameter) using the included hardware. Use short U-bolt in lower
mounting holes to allow room for battery. A bracket kit accessory package for larger
diameters is also available (see Section 6). A drop-in hasp for a padlock (not included) has
been furnished to secure the cabinet cover.

The BPSS controller is furnished with a pole/post mounted adjustable PV array panel to be
mounted above the BPSS controller cabinet. Please see Section 5 for PV array panel installation
and adjustment information.

4.2 Electrical Installation

4.2.1 Power Controller Characteristics

Securitron's BPSS utilizes a sophisticated power controller which incorporates advanced
technology and series switching, pulse width modulation (PWM) charging. The battery charging
process has been optimized for longer battery life and improved system performance. Many
specifications of the controller are unique. Although the controller is very simple to use, please
take the time to read this manual and become familiar with it s functions. This will h elp to make
full use of the many advantages the controller can provide to the PV system being used.

4.2.2 Controller Safety

 SAVE THESE INSTRUCTIONS! - This manual contains important instructions that should be

followed during installation and maintenance of the controller.

 WARNING! - Be very careful when working with batteries. Lead acid batteries can generate

explosive gases, and short circuits can draw thousands of am ps from the battery. Read and
follow all instructions provided with the battery.

 Do not exceed the voltage or current ratings of the controller. Use only with a 12 Volt

battery rated between 5Ah and 20Ah.

 DO NOT short circuit the PV array or load while connected to the controller. This will

DAMAGE the controller.

 The controller should be protected from direct sunlight. Ensure adequate space for air flow

around the controller.

 The negative system conductor should be properly grounded. All grounding and wiring

should comply with local codes.

4.2.3 Controller Wiring

The six (6) system connections to the controller terminals are numbered “1” to “6” on the label
as shown in Figure 1. It is recommended that the connections be made in order from 1
to 6.

1. Connect the BATTERY first. Use care that bare wires do not touch the metal case of
the controller.

2. Connect the SOLAR (PV array) next. The green LED indicator will light if sunlight is
present.

3. Connect the LOAD last. This model includes a low voltage disconnect (LVD). If the red
LED indicator lights, the battery capacity is low and should be charged before completin g
the system installation.

Power Controller

PN# 500-22125
Page 2 Rev. D, 08/11

Figure 1

Notes:

 The controller is shipped with a jumper installed. This sets the controller for charging

SEALED batteries. If a FLOODED battery is being used, simply remove the jumper to
optimize the battery charging for a flooded battery. If the jumper is connected again, th e
charging will return to the set-points for a sealed battery.

 For safety and the most effective lightning protection, the negative conductor of the PV

system should be properly grounded. The controller connects the PV-negative, Battery
negative and Load- negative internally per UL recommendations. No switching is done in
the negative current path.

4.2.4 Operating Characteristics

4.2.4.1 Polarity Protection

The controller is generally protected from reversed connections, but the system operator and
other equipment will be at risk when polarities (+ and –) are reversed. Carefully check before
making each connection to ensure that the polarity is correct.

4.2.4.2 LED Indicators
Green LED:

The green LED indicator located on the power controller is lit whenever sunlight is available for
battery charging. The green LED will turn off at night. Because the controller uses a PWM
constant voltage charging process, there is usually some amount of energy going into the
battery at all times. Although the charging current falls to very low levels when the battery
reaches full charge, the green LED will continue to stay ON (during the daytime). This is to
indicate that the controller is working and that energy is available from the PV array for
charging.

Red LED:

The controller includes an automatic load disconnect (LVD) feature along with a red LED
indicator. Whenever the battery charge state falls below the LVD set-point, the load will be
disconnected and the red LED will light. This indicates that the controller has di sconnected the
load to protect the battery from further discharge and possible damage. After some period of
recharging the battery, such that it recovers to approximately 40 to 50 percent of its rated
capacity, the load will automatically be reconnected and the red LED will turn off.

4.2.4.3 Controller Features and Functions
Low Voltage Disconnect (LVD):

If the battery falls below 11.5 volts, the load is disconnecte d from the battery to protect against
harmful deep discharges. A 2-second delay prevents load disconnects from transients. The load
is automatically reconnected when the battery voltage recovers to 12.6 volts.

Battery Disconnect:

If the battery is disconnected during the daytime, the PV array will continue to provide power to
the controller. The controller will immediately go into PWM and provide power at a constant
voltage to the load. This may continue as long as power is available from the PV array.

Auxiliary Generators:

Engine generators and other sources of power may be connected directly to the battery for
charging. It is not necessary to disconnect the controller from the battery. However, do not use
the controller to regulate these other generators.

Reverse Current:

The controller prevents the battery from discharging through the PV array at night. There is no
need to install a blocking diode for this purpose.

Noise:

The controller circuit minimizes switching noise and filters all noise output to extremely low
levels when the system is properly grounded. If noise is present in a telecom loa d, it is most
likely due to a grounding problem in the system.

PN# 500-22125
Page 3 Rev. D, 08/11