DCC Specialties PSXX-AR Series User manual

PSXX-AR & PSXX-ARSC Manual Rev: A Software Rev: A
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*[email protected]
*Designed by Larry Maier
*Developed by DCC Specialties
*US Patent 7,810,435
New Timing Delay Features
New Programmable Power Up Status
New Auto Stop
For DCC Use Only
Versions Available: PSXX-AR [Tortoise] & PSXX-ARSC [Kato, Peco, Atlas Snap Coils]
Compatible with PSXX and earlier PSX & PSX-AR units
Full Manual Available: tonystrains.com/psxx-manual
● D12 Green LED On indicates DCC power J1 input
● D11 & D20 Green LEDs On indicates DCC power J2 output
● D23 Red LED On & D7 Green OFF indicates short circuit
● D24 Blue LED indicates that current limiting is active. For marginal shorts, it may flash without
tripping the breaker. For hard shorts, it will light momentarily and then the breaker will trip.
1. All connections involve two wire inputs from the DCC Booster [or Main DCC Power Bus] into a PSXX-AR and two wire Outputs
to the isolated reversing section or loop.
2. All PSXX-AR Auto reverser/circuit breakers are ready to operate without programming.
3. PSXX-ARs are not compatible with Digitrax Analog Address [00] or any method that adjusts the “0” bit timing to allow operation
of an analog engine.
Test the PSXX-AR for functionality:
1. Connect the PSXX-AR to a DCC power source and apply power.
a. Verify D12 and D11 are illuminated.
2. Use a short jumper wire to momentarily connect J1-1 to J2-1.
a. Verify no change: D12 & D11 remain illuminated.
3. Connect J1-1 to J2-2.
a. Verify momentary flash of D24 [blue]; D12 & D20 are illuminated.
4. Connect J1-1 to J2-1.
a. Verify momentary flash of D24 [blue]; D12 & D11 are illuminated.
5. Connect J1-2 to J2-1.
a. Verify momentary flash of D24 [blue]; D12 & D20 are illuminated.
6. Connect J1-2 to J2-2.
a. Verify momentary flash of D24 [blue]; D12 & D11 are illuminated.
7. Connect J2-1 to J2-2.
a. Verify D12 and D23 [red] are illuminated.
b. Verify D24 flashes on periodically about every 3-4 seconds.
c. After the D24 short flash, verify D23 is steady on until the next D24 flash cycle.
• If you are using both PSXX circuit breakers and PSXX-AR auto reversers on a layout, make sure the PSXX-AR J1
input is taking power from the J2 DCC track output of the PSXX
• PSXX-AR Trip Rate Default = 1.8 amps
• When PSXX are used with PSXX-AR, the PSXX-AR trip rate must be equal to or less than the trip rate of the PSXX.
• PSXX default trip rate = 2amps
• Reference PSXX-AR manual for setting trip rate.
The PSXX-AR Series
DCC Circuit Breaker & Auto Reverser
Integrated Turnout Control for Loop Automation
Intelligent, Solid State
Block Detection and Network Feed Back
Manual Rev A [03.22], Software Rev A [03.22]

PSXX-AR & PSXX-ARSC Manual Rev: A Software Rev: A
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PSXX-AR & PSXX-ARSC Manual Rev: A Software Rev: A
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J1 Input Power Connector
● J1-1 DCC Power Input A [from DCC Booster]
● J1-2 DCC Power Input B [from DCC Booster]
J2 Output Power Connector
● J2-1 Switched DCC Power Output A [“normal” polarity]
● J2-2 Switched DCC Power Output B [“normal” polarity]
● J2-1 Switched DCC Power Output B [“reverse” polarity]
JP1 Program Jumper
● JP1-1 & JP1-2 Place jumper on pins 1 & 2 for Programming
● JP1-2 & JP1-3 Place jumper on pins 2 & 3 for Operations
J4 Block Occupancy & Block Shorted
● J4-1: GND Manual OFF J2 Output -
● J4-2: Input Manual OFF J2 Output +
● J4-3: Output Block Shorted Emitter
● J4-4: Output Block Shorted Collector
● J4-5: Output Block Occupied Emitter
● J4-6: Output Block Occupied Collector
J5 Status Outputs [Remote]
● J5-1: +Remote D23 [RED] Anode
● J5-2: - Remote D23 [RED] Cathode
● J5-3: + Input Photocell
● J5-4: - GND Photocell
J6 Trip Current Settings by Jumpers
● No Jumpers = 1.8 amperes [default]
● J6-1 to J6-2 = 2.7 amperes
● J6-3 to J6-4 = 0.9 amperes
● J6-1 to J6-2 & J6-3 to J6-4 = 3.6 amperes.
● Set trip current using either wire Jumpers or Programming CV 49: NOT BOTH
J7 Auto/Manual Reset & Powering LEDs
● J7-1: +5V Output for powering external LEDs, etc. in conjunction with Block Occupied or Block Shorted outputs.
Maximum load should be less than 25mA.
● J7-2: GND Return connection for J7-1 5V output
• J7-3 to J7-4 with wire Jumper: Manual Reset [open to reset]
• J7-3: Auto/Manual Reset
• J7-4: GND
o The user can install a normally closed push button switch in series with the jumper.
o Open the switch to reset the PSXX or send an accessory ON command to the PSXX on-off command address
• J7-5: Over-current Indication Output
• J7-6: GND
o J7-5 to J7-6 output mirrors D24.
J9 TBD
J10 DCC Power In Remote LED Indicator Output
● J10-1: +Remote D12 [Green] Anode
● J10-1: - Remote D12 [RED] Cathode
J11 Track Power On Remote LED Indicator Output
● J11-1 & J11-2 Output is on any time that D20 (GREEN) is on indicating Reverse phase output
● This output should ONLY be connected to an isolated LED.
● J11-3 J11-4 Output is on any time that D11 (GREEN) is on indicating Normal phase output.
● This output should ONLY be connected to an isolated LED.
● J11-1: Remote D11 Green Remote Track On Reverse cathode -
● J11-2: Remote D11 Green Remote Track On Reverse anode +
● J11-3: Remote D20 Green Remote Track On Normal cathode -
● J11-4: Remote D20 Green Remote Track On Normal anode +
J12 Stall Motor Output
● J12-1: Stall Motor #1 +
● J12-2: Stall Motor #1 –
● J12-3: Stall Motor #2 +
● J12-4: Stall Motor #2 -
J13 Snap Coil Output
● Kato 2 wire switch machines use pins 1 & 4
● Peco/Atlas 3 wire switch machine will use pins 1,2,4
● J13-1: Pulse Motor Coil 2/Coil -
● J13-2: Pulse Motor Coil 1/2 V+
● J13-3: Pulse Motor Coil 1/2 V+
● J13-4: Pulse Motor Coil 1/Coil -

PSXX-AR & PSXX-ARSC Manual Rev: A Software Rev: A
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CV49 Current Limit/Trip Current value
● Default Trip Rate = 1.8 amps
● If CV49=0, then the Current Limit/Trip Current jumpers on J6 are enabled. Remember to use either the Jumpers or
the CV settings, NOT BOTH!
● Setting CV49 to a value from 1-10 will set the trip rate matching the value.
● For example:
CV49=1 Trip Rate = 0.9 amperes
CV49=2 Trip Rate = 1.8 amperes [default]
CV49=3 Trip Rate = 2.7 amperes
CV49=4 Trip Rate = 3.6 amperes
CV49=5 Trip Rate = 4.5 amperes
CV49=6 Trip Rate = 5.4 amperes
Low Current System Trip Current Settings:
● For the Digitrax Zephyr [DCS50, DCS51, DCS52], setting values of CV49=01, 02, & 03 is OK.
● The NCE Power Cab should use the default value of CV49=02.
● For the Power Cab CV49=1 is ok too.
● Most 5 amp boosters should be happy with CV49 = 0-5
Audible Short Indication The two holes inside the circle [U8] on the top of the board are for use
with an audible short indicating device. It is designed for use with part no. ttxsonalert. The device is
installed with the [+] terminal in the square hole.
You can obtain these components for all PSXX devices from
Tony’s Train Exchange: 800.978.3472 [e-mail]
Part no. ttxsonalert Part no. screwtermkitpsxx1 Part no. dsppsxx.pb
Audio Alert Screw Terminal Kit for PSXX Reset Push Button Switch