Installation Instructions
PS2/PS2BB
The PS2 series is designed to power Command Access modied exit devices, Von
Duprin EL devices, or Dor-o-matic EL devices. The PS2 series is a regulated, linear
power supply rated at 2 Amps @ 24VDC. It’s state-of-the-art, solid-state design oers
a exible and cost eective solution. Its built-in surge capabilities allow it to power
up to two latch-retracting exit devices, when used with Command Access power
modules. The PS2 series is a feature-rich 24VDC power supply that oers solid-state
Inputs/Outputs, re alarm link, optional battery charging circuitry and other standard
features to give you the exibility and control to do the job right.
SPECIFICATIONS
• Input - 120 VAC, 60Hz, 700mA
• Measured Output Range – 24Vdc +/- 5%, 1 amp
• UL294, Class 2 Output
• Priority Sensing - When two devices are triggered simultaneously, output 1 will re rst,
output 2 will re within 500ms.
• Electronic over load & temperature detection- Each channel has high speed
electronic over load & temperature protection that functions independent of the
other channel.
• Input trigger - Dry contact
• LEDs - Red=AC Power indicator, Green=Output Indicator
• Temperature range - 0 to 49°c
• Enclosure - 12.5”W x 15”H x 4”D (Holds (2) 7AH Batteries)
• Fuses - AC= 2A Slow Blow 5mm x 20mm
• Fire Alarm Link
• “Euro-style” removable terminal blocks used
• Factory installed Option BB-Battery charging - Regulated, independent battery charging
• Factory installed Option BB-Battery backup - Automatic uninterrupted battery backup.
• Batteries not included (requires 2 each 7AH 12V batteries)
• Intended Access Control Level is Class 1
• Maximum Humidity - 85%
DESCRIPTION
Command Access Technologies | 22901 La Palma Ave, Yorba Linda, CA 92887
| Phone: (888) 6-ACCESS Fax: (888) 622-2302
Symptom Possible Cause Solution
• Power supply makes a
beeping sound
Possibilty 1- Power supply is too hot,
microprocessor is shutting the power
supply down.
Possibility 2- Fire alarm link removed or
Fire alarm contact broken or loose
Check to see current draw is exceeding the 2 Amps
continuous rating. If so, eliminate one device that’s
connected and check current draw.
EL Exit device can’t fully
retract latch
Possibility 1- Wire gauge from power
supply to exit device too small
Possibility 2- Distance from Power
Supply. to exit device is too far
Possibility 3- Exit device out of
adjustment
Check with your device manager’s wiring
specications.
Green channel LED won’t
light up, channel isn’t
working
Possibility 1- Dead short or overload
Possibility 2- Bad solenoid in exit device,
or defective interface device between
solenoid and power supply.
Shut off power, det ect short, restore pow er,
channel will reset.
Power supply not working
and red LED not lit.
Possibility 1- AC fuse blown
Replace fuse with 2A Slow Blow 250VAC
5mm x 20mm
TROUBLESHOOTING
Re-adjust exit device according to manufacturer’s
mechanical recommendations.
Check with your device manager’s wiring
specications.
Check solenoi d coil resistance and compare to
manufacturer spec. If not close, co ntact service
represenative .
•
•
•
If not hooked up to re/life-safety system, make sure
jumper wire for the re alarm is properly connected.
If hooked up to re/life-safety system, make sure system
is functioning correctly
Doc. #20020_A
Possibility 2- Short Circuit If replacement fuse has blown then there
is likely a short circuit in the board & it
will need to be replaced.
Connecting to the Fire Alarm Link (if needed)
1. Shut o the 120 VAC to the power supply.
2. Remove the jumper wire from “FIRE”
terminal. (see g 5)
3. Connect to normally closed re alarm relay.
4. Restore AC voltage to power supply
g. 5
FUSE F1
2.0A 250V