CAN-GC6 mergCBUS Servo Controller

ContentHardwaremergCBUS


4 channel servo controller with GCA137 support for polarisation.


By Rob Versluis & Peter Giling


Features

  • Position events.
  • Optional external switch position sensors.
  • GCA137 support for polarisation
  • Interactive comfortable setup and mergCBUS FLiM compatible.
  • Compatible 12VDC mergCBUS connector. (J3)
  • Opto-isolation for feed-back switches.
  • Individual direction-speed selection.
  • 'Bouncing' option.
  • Smooth running motor due to high resolution stepping.


The final board

V2.3
Profesional boards are available.


LEDs, Jumpers & Connectors

2.3 Component side.
cangc6-leds.jpg


LED Function Aspect Color
L1 CBUS activity Random Red
L2 FLiM learning mode (PB1) 1Hz Yellow
L3 CPU is running Continuous Green
L4 Servo busy 2.5Hz Red


Jumper Function
JP1 120 Ohm line termination¹

¹) A CAN bus must be terminated on both ends to get 60 Ohm.


Connector Function remark
J1, J2 'GCA' CBUS and 12V power only needed if used in CAN-GC system
J3 'MERG' CBUS and 12V power only needed if used in MERG Cbus system
S1..S4 Servo 1…4
F1..F4 External switch position feedback (2 inputs for each switch)
ICSP1 In-circuit serial programming
GCA137 Piggyback board connection for polarization


Connection Servo's

Most servo's come with a connector which will fit on Servo 1..4 connector on the CAN-GC6.
The signal line (useally orange ) should be at the edge of the board.

Mounting options for servo motor

See http://www.rbs-modellbau.de/
A nice mounting support is available from www.phgiling.net.
Sideways or in line movement is possible
The set contains all that is needed, incl. servomotor
see GCA servo support ServoSet


Connection limit switches

If you are not planning to use this option, F1..F4, U4 and U5 can be omitted.

F1..F4 are made for connection of limit switches, to feed-back that turnout is really on its desired position.
Switch should be on when position is OK

Connection should be made according this table :

Connector Turnout# position Connections
F1 1 straight C + S
F1 1 round C + R
F2 2 straight C + S
F2 2 round C + R
F3 3 straight C + S
F3 3 round C + R
F4 4 straight C + S
F4 4 round C + R


PSK header connectors

IMPORTANT NOTE !!!!!!
Some users seem to know better, and solder wires directly to the pins or the pc-board.!
That is totally unacceptable !!
Wires will easily break off, and cause a lot of damage in many cases.
So use connectors !!!!!
In order to ease making these cables, it is also possible to buy the necessary tool, to create the PSK cables.
The best wire to be used with PSK connectors is 0,25 mm².
This special plier will be sold for net price of € 18,25 if ordered together with complete kits. crimpzange.jpg
Just ask peter.

Setup


Switch Setup

Single Gate

The switch interface option Single Gate must be set.

Hardware

Development Tools


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