Rosslare PS-33 Instruction Manual

PS-33
INSTALLATION MANUAL

INTRODUCTION and KEY FEATURES

The PS-33 is a power supply that serves as a spare part for the
AC-225; it replaces the existing power supply and provides
power to the AC-225 board, readers, and electric locks, as
well as battery charging for power backup.
The PS-33 does not require programming. It comes with a
battery charger (up to 7Ah), Tamper Output, and two
separated power supplies.
The PS-33 power supply converts a 16VAC input from the
voltage transformer to a 12 VDC power limited output (see
specification) with an integrated battery charger.

INSTALLATION PROCEDURE

The power supply should be installed in accordance with
article 760 of the National Electrical Code NFPA 70, as well as
applicable Local Codes.
Note: Circuit breaker must be close to the power supply and must be
accessible.
1. Mount the Power Supply.
2. Connect AC power (16VAC) to the power supply input.
The power supply output is rated at 12VDC and a
maximum of 2A. Use 18 AWG or larger for all power
connections (battery, DC output).
3. Connect the grounding to the ground terminal.
Make sure to secure the screw tightly.
4. Connect the ACU power input to the power terminal
marked [12VDC (+) and 2A (-)].
5. Backup battery is optional. When battery is not used, loss
of AC results in the loss of output voltage. When using a
backup battery, it must be a UL certified "lead acid" or
"gel" type. Connect the battery terminal to power
terminal marked [VBAT(+) and (-)].
(Battery leads are included.)

WIRING

Use 18 AWG or larger for all power connections.
Ensure that the power-limited circuit is wired separately from
the non-power limited wiring (16 VAC, Battery).

MAINTENANCE

For proper operation, the unit should be tested at least once
a year as described below:
Output voltage test:
Check DC output for proper voltage level under normal load
conditions.
Battery test:
Check specified voltage, at both battery terminal and board
terminals marked [VBAT(+)(-)] under normal load conditions,
verify that the battery is fully charged, and ensure that there is
no break in the battery connection wires.
Note: Maximum charging current under discharge is 1.2A.
Note: Battery life expectancy is five years .However, it is recommended to
change batteries after four years, or before, if required.
Dispose of used batteries according to manufacturer's instructions.

POWER SUPPLY SPECIFICATIONS

Input Voltage
16V AC / 4A
Backup Battery Charger
12VDC lead acid battery up to 7Ah
Output Voltage 1
12V DC / 2A
Output Voltage 2
13.8V DC / 3A

ELECTRICAL SPECIFICATIONS

Battery Backup
Built in charger for sealed, UL certified 12VDC lead acid
battery up to 7Ah
Caution: Risk of explosion, when battery is replaced by a wrong battery
type.
Visual Indicators
DC output red LED2 indicator – low voltage
AC input green LED1 indicator – main power
BAT charger red LED3 indicator – backup battery low voltage

ENVIRONMENTAL SPECIFICATIONS

Operating Temperature:
32°F to 120°F (0°C to 49°C)
Operating Humidity:
0 to 90% (Non-Condensing)

MECHANICAL SPECIFICATIONS

Dimensions:
Height: 110 mm
Width: 65 mm
Depth: 83 mm
Transformer
AC Transformer - 120/220V AC/16V AC 4A (64VA) Class 2 (not
included with PS-33)
Tamper Output (open collector) – indicates faulty power

WIRING DIAGRAM

The following table describes the terminal blocks in the wiring
diagram:
Terminal Block Description
VIN 16VAC Connects to a transformer that
converts 220VAC to 16VAC.
VBAT 12VDC Connects to a 12V battery. The
battery is recharged from this card,
and is used as backup if the 16VAC
is not operating.
TAMPER (-) Open collector tamper out
indication.
13.8VDC 3A Power supply output, rated
13.8VDC and a maximum of 3A.
12VDC 2A Power supply output, rated 12VDC
and a maximum of 2A.