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gca180-en [2018/11/12 08:56] (current)
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 +====== GCA180 Relay unit for standard Turntables. ======
 +[[english|{{ ​ rocrail-logo-35.png}}]]
 +[[:​english|Content]] -> [[:​hardware-en|Hardware]] -> [[:​hardware-en#​interfaces|GCA]]
 +  *  [[mgv-overview-en|The GCA modules]] ​
 +
 + \\
 +
 +^^^^By Peter Giling ^^^^
 +\\
 +
 +===== Description =====
 +A standard turntable like from Fleischmann or Märklin, has a three wire control.\\
 +This controls both start/stop and direction.\\
 +It is not possible to connect that directly to GCA50 or CAN-GC2, due to the higher voltage of this turntable.\\
 +This unit makes it possible.\\
 +Of course this way does not make it full Rocrail automatic controllable,​ but at least it is possible with two buttons in Rocview, to command the tt.\\
 +It requires 16V ac/dc from any standard train transformer,​ and a connection to either GCA50, CAN-GC2 or GCA_PI02.\\
 +On board is a selector to select which 2 out of 8 ports are used.\\
 +The other 6 ports remain accessable by a second 10 pin PSS connector.\\
 +If any of the two inputs recieves +5V, a direction is selected and the motor will start.\\
 +After releasing the button the motors keeps turning until the next stop.\\
 +In GCA50 settings select C2 for both ports.\\
 +For CAN-GC2 , select single output in interface page of the button.\\
 +
 +The red, yellow and gray wires (as indicated on board print) are to be removed from handcontroller,​ and connected to the pcb.\\
 +
 +===== The prototype =====
 +{{:​mgv:​hardware:​2013-06-06_17-12-35.697.jpg?​700|}}
 +
 +
 +No boards available from www.phgiling.net
 +
 +===== The hardware =====
 +
 +|{{:​mgv:​hardware:​gca180_sch.pdf|The schematics}} ​ |
 +|{{:​mgv:​hardware:​gca180_pcb.pdf|The pc-board and parts positions}} ​ |
 +\\
  
gca180-en.txt · Last modified: 2018/11/12 08:56 (external edit)