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PSX-AR Manual Rev: P      Software Rev: N 

 

The PSX-AR Series

 

DCC Circuit Breaker & Auto Reverser  

Integrated Turnout Control for Loop Automation 

Intelligent, Solid State  

 Block Detection and Network Feed Back

 

Manual Rev P [10.17], Software Rev N [4.15]

 

   

 

*800.671.0641  [email protected] 

*Designed by Larry Maier 

*Developed by DCC Specialties 

*US Patent 7,810,435 

 

New Exclusive Digitrax Configuration 

New Timing Delay Features 

New Programmable Power Up Status 

New Auto Stop 

For DCC Use Only 

 

The PSX-AR series is a product of years of research into problems dealing with false overloads that 

cause premature shut down of DCC Boosters and other Circuit Breakers. These false overloads are 

caused by large capacitors used in sound systems, decoders and lighted passenger cars. The 

overload appears as a short circuit until the capacitors are charged. The logic on the PSX-AR Series 

determines if the load is a true short or just an overload due to a discharged capacitor. A PSX-AR 

also has the logic & power to control switch machines at the throat of a reversing loop. 

PSX-AR Versions Available: 

PSX-AR, PSX-ARFB [FeedBack], PSX-ARSC [SnapCoil] &  

                                                  PSX-ARSCFB [Snapcoil with Feedback] 

 

 

Automatic Coordination of Auto Reverse and Circuit Breaker Tasks:

 The PSX-AR is both an 

auto reverser and circuit breaker 

 

Automates Reverse Loop Turnouts:

 Integrated Stall Motor or Snap Coil Decoder, 

automatically lines up switch machines when the polarity is reversed. Switch machine can 

also be controlled with standard DCC Accessory Commands or push buttons. 

 

All Solid State Operation:

  Fast, solid state design, reliable quiet action, no clicks or sparks. 

 

Adaptive Load Reset:

  Electronically determines if the overload is a real short or due to excess 

capacitance in sound decoders or lighted passenger cars. 

 

Special Digitrax Configuration Jumper

: Optimize functionality with all Digitrax systems  

 

Programmable timing delay:

 Use the PSX-AR as a fast blow or an adjustable slow blow fuse 

 

Auto Stop with DCC Reset:

 A photocell can be connected a PSX-AR input. Normally, covering 

the photocell will not cause any action. If the photocell is armed with a DCC command, the 

PSX-AR will turn off the next time the photocell is covered. A DCC command can restore the 

track power when desired. 

 

Block Detection:

 Either a photo cell or block current draw can be used to detect a train in a 

block and to trigger a Block Occupied output. The current trigger level is programmable.  

 

Over Voltage Protection:

  The PSX-AR incorporates a voltage suppression diode that limits 

voltage spikes on your layout. 

Summary of Contents for PSX-AR

Page 1: ...Coordination of Auto Reverse and Circuit Breaker Tasks The PSX AR is both an auto reverser and circuit breaker Automates Reverse Loop Turnouts Integrated Stall Motor or Snap Coil Decoder automaticall...

Page 2: ...mmand or to use the power status present when the layout was last shut down Outputs for LED Indicators Remote LEDs can be added to monitor input output power status Network Feedback Isolated outputs d...

Page 3: ...est the PSX AR for functionality a Turn on DCC power to the PSX AR b The PSX AR should turn on with both D12 and D7 indicating power and D6 off c Take a piece of wire and connect J1 1 to J2 3 Nothing...

Page 4: ...rn screw on connector s counter clockwise while looking at the connector opening b Make sure the wire clamp is at the bottom of the connector opening c Insert the wire you are connecting and turn the...

Page 5: ...test D12 stays on 13 If your booster does trip during this test D12 goes off or flashes on and off it may not be able to support automatic reset a Install the Manual Reset jumper J7 1 to J7 2 and rep...

Page 6: ...efficient motors this type of power requirement amps may be large enough to overload a DCC system powered from one 5 Amp booster For example if you have four PSX set to the default current each PSX w...

Page 7: ...HO Scale 14 AWG bus 20 AWG rail feeders O Scale 12 AWG bus 16 AWG rail feeders We recommend using stranded pair wire such as speaker or lamp cord wire for bus wiring If you re using two individual str...

Page 8: ...r Input A from DCC Booster J1 2 DCC Power Input B from DCC Booster J2 Output Power Connector J2 1 3 5 Switched DCC Power Output A normal polarity J2 2 4 6 Switched DCC Power Output B normal polarity J...

Page 9: ...Status LED copies D6 J5 4 cathode Remote Status LED copies D6 Select such that gaps closest to aligned point direction are in phase J6 Trip Current Settings by Jumpers See Table to the right and also...

Page 10: ...D7 G Terminal Functions J1 DCC power input connections from the DCC booster J2 DCC track power output terminal from the PSX AR circuit breaker to the track J3 Programming Operation jumper Normal opera...

Page 11: ...6 3 and J6 2 to J6 1 is open then the current trip is 6 35 amperes If J6 4 is connected to J6 3 and J6 2 is connected to J6 1 then the current trip is 8 89 amperes J7 1 and J7 2 are the auto manual re...

Page 12: ...urn power on to the PSX AR 5 The next accessory command issued by the DCC system will be stored as the first address track on off 6 Key in the first address you want to use and press either the ON or...

Page 13: ...ow you to stop a train at a known point on a hidden staging track As the train enters the staging or other track you issue the photocell arming command When the train just covers the photocell the PSX...

Page 14: ...rectly synchronized otherwise the PSX AR will throw the points under your train as it enters the reverse loop Send an accessory Clear command to the PSX AR If the points move to the Throw position the...

Page 15: ...by the value The small red LED D6 on the PSX AR will blink each time a command is accepted and the CV value is stored correctly in the CV 8 If you make a mistake don t worry just go back and program...

Page 16: ...ectively with Digitrax equipment Installing the Digitrax jumper J7 3 to J7 4 automatically sets CV53 1 CV54 sets the current level at which the PSX AR turns on the Block Occupied output This allows yo...

Page 17: ...t Using the Program On Main POM programing mode of your DCC system set CV63 42 You will see D6 flash After D6 flashes all CVs and addresses are returned to their original factory values The CV63 defau...

Page 18: ...ss of the value in CV50 CV66 2 The PSX AR output will assume the same state it was in when the connected booster was last turned off o If the stored power down state is OFF the PSX AR will behave the...

Page 19: ...044 These addresses are not accessible to the Digitrax equipment Under this condition it is necessary to 1 Remove power from the PSX AR while in Program mode 2 Re apply the power in Program mode with...

Page 20: ...o this address and hold down the 1 or 4 control key 7 D10 will flash each time the command station repeats the accessory address This will give you a feel of how long to hold the control key while you...

Page 21: ...e is a simple circuit that uses an LED to indicate the polarity setting of the PSX AR It only uses three standard parts If you have block occupancy detection circuits the resistor value should be high...

Page 22: ...the PSX 5 Select an unused locomotive number with the keypad or RH knob 6 Press PROG key until you get from Pg to Po 7 Use LH throttle dial to set the CV and the RH throttle for the CV value 8 Press E...

Page 23: ...itch number using the numerical keypad 6 Press ENTER 7 Press either 1 or 2 to set the address 8 Repeat steps 4 thru 6 until all of the switch addresses are set 9 Turn DCC Power off 10 Move PSX J3 Jump...

Page 24: ...display 8 Enter the CV number 9 Press ENTER 10 Enter the value to be stored in the CV 11 Press ENTER 12 Repeat steps 8 and 9 until finished 13 Press ENTER to return to normal operation 14 Turn power o...

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