DCC Specialties PSX-AR Manual

DCC Specialties PSX-AR Manual

Psx-ar series, dcc circuit breaker & auto reverser integrated turnout control for loop automation intelligent, solid state block detection and network feed back

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PSX-AR Manual Rev: P
*800.671.0641 info@dccspecialties.com
*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:
Automatic Coordination of Auto Reverse and Circuit Breaker Tasks:
auto reverser and circuit breaker
Automates Reverse Loop Turnouts:
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:
Adaptive Load Reset:
capacitance in sound decoders or lighted passenger cars.
Special Digitrax Configuration
Programmable timing delay:
Auto Stop with DCC Reset:
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:
block and to trigger a Block Occupied output. The current trigger level is programmable.
Over Voltage Protection:
voltage spikes on your layout.
Software Rev: N
PSX-AR, PSX-ARFB [FeedBack], PSX-ARSC [SnapCoil] &
PSX-ARSCFB [Snapcoil with Feedback]
Integrated Stall Motor or Snap Coil Decoder,
Fast, solid state design, reliable quiet action, no clicks or sparks.
Electronically determines if the overload is a real short or due to excess
Jumper: Optimize functionality with all Digitrax systems
Use the PSX-AR as a fast blow or an adjustable slow blow fuse
A photocell can be connected a PSX-AR input. Normally, covering
Either a photo cell or block current draw can be used to detect a train in a
The PSX-AR incorporates a voltage suppression diode that limits
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]
1
The PSX-AR is both an

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Summary of Contents for DCC Specialties PSX-AR

  • Page 1 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.
  • Page 2 The breaker trip current can be adjusted over a range of • 1.27 to 10.2 amperes. With additional cooling, the PSX-AR can handle up to 19.1 amperes. Trip current values are selected by setting a CV. Certain selected values can be set by placing jumpers on the board.
  • Page 3 Repeat this test except connect J1-2 to J2-4. h. D12 and D7 should remain on, and D6 should be off. i. Connect J1-2 to J2-3. The PSX-AR should reverse. D12 & D7 are on, with D6 slowly flashing. j. Now connect J1-2 to J2-4.
  • Page 4 2. Cut isolating gaps in the rails between PSX/PSX-AR zones; stagger gaps 0.75” [21mm] 3. If you are using both PSX circuit breakers and PSX-AR auto reversers on a layout and the locomotive hesitates when crossing a reverse gap, program the PSX controlling the track adjacent to the PSX-AR: a.
  • Page 5 9. Connect the two wires from the DCC Booster to the PSX-AR J1-1 & J1-2 INPUT terminal 10. When Power is applied to the PSX-AR, the D12 LED near the J1 Input and the D7 LED near the J2 Output should be on.
  • Page 6 PSX-AR Manual Rev: P Software Rev: N booster, NOT your $1000 fully lit, full sound, decoder equipped, fully detailed scale model. The PSX series IS designed to protect your models. For the multiple power district per booster, you want to use a PSX-2, PSX-3, or PSX 4. Each PSX feeds a district, and the inputs of the PSX are daisy chained together to a single booster.
  • Page 7 D. PSX-AR Wiring Wire to the PSX-AR should be heavy enough to carry the current efficiently. The size of wire depends on your scale. Too much resistance in the wire or rails can result in faulty short sensing, voltage drop and poor performance.
  • Page 8 PSX-AR Manual Rev: P Software Rev: N F. Terminal Wiring Descriptions 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 • J2-1,3,5 Switched DCC Power Output A [“normal” polarity] •...
  • Page 9 J7-1 to J7-2 with Jumper: Manual Reset [open to reset] The user can install a normally closed switch in series with the jumper. Open the switch to reset the PSX-AR or send an accessory ON command to the PSX-AR on-off command address [see Section B item •...
  • Page 10 G. Terminal Functions – DCC power input connections from the DCC booster. – DCC track power output terminal from the PSX-AR circuit breaker to the track. – Programming & Operation jumper. Normal operating configuration is when the jumper is in the J3-2 to J3-3 position. Place the jumper in the J3-1 to J3-2 position to enter programing mode.
  • Page 11 SPST toggle switch or N/C momentary push button switch, then the breaker will remain off after a short until the connection from J7-1 to J7-2 is momentarily opened or an accessory ON command is sent to the PSX-AR on-off accessory address [see Section B item 12].
  • Page 12 If these are acceptable, you do not need to program the address. For all systems, whenever you enter an address or CV value, you should see D6 flash. This indicates the PSX-AR has received the information, stored it, and verified the stored data match the data you sent.
  • Page 13 This is designed to allow 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-AR will turn off and the train will stop exactly at the photocell.
  • Page 14 LED will change from flashing to steady indicating a train is now in the block. h. Further, the PSX-AR has stored the last photocell calibration values, so you can shut down the layout with a train in the staging, and the PSX-AR will remember to show block occupied the next time you power on.
  • Page 15 For all systems, whenever you enter an address or CV value, you should see D6 flash. This indicates the PSX-AR has received the information, stored it, and verified the stored data match the data you sent.
  • Page 16 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 you to set a level above the leakage current on the track to prevent false indications. •...
  • Page 17 For all systems, whenever you enter an address or CV value, you should see D6 flash. This indicates the PSX-AR has received the information, stored it, and verified the stored data match the data you sent.
  • Page 18 If the stored power down state is OFF, the PSX-AR will behave the same as if CV66=0 If the stored power down state is ON, the PSX-AR will behave the same as if CV66=1 •...
  • Page 19 This will program the Digitrax default addresses again [997, 998, 999] Note that if the J7-3 & J7-4 jumper is absent and the PSX-AR is placed in program mode, the 997, 998, & 999 sequence will be changed back to the normal default of 2042, 2043, & 2044.
  • Page 20 The PSX-AR reverser/circuit breaker has become a very popular way to control polarity in reverse loops and wyes. The PSX-AR also has many features that can be used when wired to a layout. Here is a simple control that can be easily added for more control using the PSX-AR.
  • Page 21 There are times when you need to know which way the PSX-AR is set (reversed or normal). Here 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 enough not to trip the detector circuit.
  • Page 22 14. Test the switch address setting using “SW” mode and the new switch address[es]. For all systems, whenever you enter an address or CV value, you should see D6 flash. This indicates the PSX-AR has received the information, stored it, and verified the stored data match the data you sent.
  • Page 23 18. Test the PSX using the SELECT ACCY key. For all systems, whenever you enter an address or CV value, you should see D6 flash. This indicates the PSX-AR has received the information, stored it, and verified the stored data match the data you sent.
  • Page 24 17. Test the PSX using the ACCY key. For all systems, whenever you enter an address or CV value, you should see D6 flash. This indicates the PSX-AR has received the information, stored it, and verified the stored data match the data you sent. 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.

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