GECKO(DOCS)		Optical Printer Control System		GECKO(DOCS)

    NAME
	gecko - gecko stepper motor drive wiring (201, 201X..)

    GECKO MOTOR WIRING
    --------------------
    Excerpts from Gecko 201 manual and other sources for actual wire colors.

    Motors rated phase current: 0.3 AMP - 7 AMP. Power supply voltage should
    be between 4x and 20x the motor rated voltage. The current set resistor
    may be 1/4W, 5%. Current set resistor goes across T11 and T12. Values:

          _______________________________________________________
         |    HEATSINK OPTIONAL       |     HEATSINK REQUIRED    |
         |----------------------------|--------------------------|
         |    MOTOR     RESISTOR      |     MOTOR     RESISTOR   |
         |    CURRENT   VALUE         |     CURRENT   VALUE      |
         |    -------   --------      |     -------   --------   |
         |    1.0 AMP     7.8K        |     4.0 AMP    62.7K     |
         |    1.5 AMP    12.8K        |     4.5 AMP    84.6K     |
         |    2.0 AMP    18.8K        |     5.0 AMP   117.5K     |
         |    2.5 AMP    26.1K        |     5.5 AMP   172.3K     |
         |    3.0 AMP    35.2K        |     6.0 AMP   282.0K     |
         |    3.5 AMP    47.0K        |     6.5 AMP   611.0K     |
         |                            |     7.0 AMP   OPEN       |
         |____________________________|__________________________|

     _____________________________________________________________________
    |                  Gecko 201 Terminal Arrangement                     |
    |---------------------------------------------------------------------|
    | Terminal# |  Description                                            |
    |-----------|---------------------------------------------------------|
    |    T1     |  Supply Ground                                          |
    |    T2     |  Supply Power (+) (+18VDC to +80VDC)                    |
    |    T3     |  Phase A                                                |
    |    T4     |  Phase B                                                |
    |    T5     |  Phase C                                                |
    |    T6     |  Phase D                                                |
    |    T7     |  Disable windings (when connected to ground T12)        |
    |    T8     |  Direction (ground-going signal relative to +5V common) |
    |    T9     |  Step      (ground-going signal relative to +5V common) |
    |   T10     |  +5V Common                                             |
    |   T11     |  Current set resistor                                   |
    |   T12     |  Current set resistor (ground)                          |
    |___________|_________________________________________________________|

    Use heat sinks for current settings above 3 amps.
    Drive should be heatsinked to a piece of aluminum, preferably with
    fins and a fan to increase heat dissipation and surface area.

    GECKO OPTION JUMPERS   
    --------------------
                     
        1  2  3  4   
      .------------.        > Jumper pins 2 and 6 for STANDBY ENABLED   
      | o  o  o  o |        > Jumper pins 1 and 5 for STANDBY DISABLED
      | o  o  o  o |        > Leave all pins open for LOW CURRENT RANGE
      `------------'        > Jumper pins 3 and 7 for SIZE 42 MOTOR
        5  6  7  8          > Jumper pins 4 and 8 for MID-BAND DISABLED
                            > Jumper pins 7 and 8 for NORMAL (DEFAULT)

    GECKO COMPUTER CONNECTIONS
    --------------------------
    On the Kuper cards and A800 boards, connect STEPS to T9, DIRECTION to T8,
    and +5v from card (pin 20) to T10, e.g.

               Kuper RTMC/A800 Pin     Gecko Drive Terminals
               -------------------     ---------------------
                        1              (no connection)
                        2  (A-Step)    T9 for channel A
                        3  (B-Step)    T9 for channel B
                        4  (C-Step)    T9 for channel C
                        :     :        :
                        etc   etc      etc
                        :     :        :
                        20 (+5VDC)     T10 on ALL GECKO DRIVES
                        21 (A-Dir)     T8 for channel A
                        22 (B-Dir)     T8 for channel B
                        23 (C-Dir)     T8 for channel C
                        :     :        :
                        etc   etc      etc
                        :     :        :

    GECKO MOTOR CONNECTIONS
    -----------------------
    In the following table, T3, T4, T5 and T6 refer to the numbered
    terminals on the drive. Colors indicate the wire colors that come
    off the motor. NOTE: These are derived from Centent docs, which
    /should/ be compatible. From what I could find, Gecko doesn't
    provide diagrams showing wire colors, but they seem to be
    terminal compatible with the Centent drives (which does).


         *********  GECKO 201 - SERIES WIRING - 6 WIRE  *********

            Manufacturer          T3      T4      T5      T6
            -----------------   ------- ------- ------- -------
            Superior Electric   GRN/WHT GRN     RED     RED/WHT
            Rapidsyn            GRN/WHT GRN     RED     RED/WHT
            IMC                 GRN/WHT GRN     RED     RED/WHT
            Sigma               YEL     RED     BLK     ORN
            Oriental Motor      BLU     RED     BLK     GRN
            Portescap           YEL/WHT RED     ORN/WHT BRN
            Bodine              YEL     RED     BRN     ORN
            Digital Motor       YEL     RED     BLK     ORN
            Warner              RED     YEL     ORN     BRN
            Japan Servo         YEL     GRN     BLU     RED

       *********   GECKO 201 - PARALLEL WIRING - 6 WIRE  *********

            Manufacturer          T3      T4      T5      T6
            -----------------   ------- ------- ------- -------
            Superior Electric   WHT     GRN     RED     BLK
            Rapidsyn            WHT     GRN     RED     BLK
            IMC                 WHT     GRN     RED     BLK
            Sigma               RED/YEL RED     ORN/BLK ORN
            Oriental Motor      BLU     WHT     YEL     GRN
            Portescap           RED/WHT RED     ORN/WHT ORN
            Bodine              RED/WHT RED     ORN/WHT ORN
            Digital Motor       RED/WHT RED     BLK     BLK/WHT
            Warner              RED     WHT     ORN     BLK
            Japan Servo         WHT     GRN     BLU     WHT

*****************         4-WIRE MOTOR        *****************
*****************        WIRING DIAGRAM       *****************

The following diagram shows the motor wiring for a
4 wire stepper motor.

              (GECKO T3)              (GECKO T4)

                WHT/BLK                  BLK
                  o                       o
                  |                       |
              ::::|:::::::::::::::::::::::|::::
              ::  |        .-----.        |  ::
              ::  |        |     |        |  ::
              ::  `vvvvvvvv'     `vvvvvvvv'  ::
       /|     ::                             ::
      / |     ::           PHASE A           ::_________
     /  |     ::                             ::         |   Motor
    /___|     ::                             ::_________|   Shaft
        |     ::           PHASE B           ::
        |     ::                             ::
    -----     ::  .^^^^^^^^.     .^^^^^^^^.  ::
    WIRES     ::  |        |     |        |  ::
              ::  |        `-----'        |  ::
              ::::|:::::::::::::::::::::::|::::
                  |                       |
                  o                       o
               WHT/RED                   RED

	     (GECKO T6)               (GECKO T5)

*****************   SUPERIOR ELECTRIC MOTOR   *****************
*****************       6-WIRE - SERIES       *****************
*****************        WIRING DIAGRAM       *****************

The following diagram shows the SERIES "low power"
motor wiring for for a Superior Electric 6 wire motor.

              (GECKO T3)     n/c     (GECKO T4)

                GRN/WHT      WHT         GRN
                  o           o           o
                  |           |           |
              ::::|:::::::::::|:::::::::::|::::
              ::  |        .--O--.        |  ::
              ::  |        |     |        |  ::
      _       ::  `vvvvvvvv'     `vvvvvvvv'  ::
     / \      ::                             ::
    | _       ::    PHASE-A       PHASE-B    ::_________
    |/ \      ::                             ::_________|   Shaft
    |   |     ::    PHASE-D       PHASE-C    ::
     \_/      ::                             ::
    -----     ::  .^^^^^^^^.     .^^^^^^^^.  ::
    WIRES     ::  |        |     |        |  ::
              ::  |        `--O--'        |  ::
              ::::|:::::::::::|:::::::::::|::::
                  |           |           |
                  o           o           o
               RED/WHT       BLK         RED

             (GECKO T6)      n/c      (GECKO T5)

*****************   SUPERIOR ELECTRIC MOTOR   *****************
*****************      6-WIRE - PARALLEL      *****************

PARALLEL "high power" wiring for a Superior Electric 6 wire motor.

                                           WHT  
                          .----------------------- GECKO T3
             n/c          |
           GRN/WHT        |           ,----------- GECKO T4
              |           |           |    GRN
          ::::|:::::::::::|:::::::::::|::::
          ::  |        .--O--.        |  ::
          ::  |        |     |        |  ::
    _     ::  `vvvvvvvv'     `vvvvvvvv'  ::
   / \    ::                             ::
  | _     ::    PHASE-A       PHASE-B    ::_________
  |/ \    ::                             ::_________|   Shaft
  |   |   ::    PHASE-D       PHASE-C    ::
   \_/    ::                             ::
  -----   ::  .^^^^^^^^.     .^^^^^^^^.  ::
  WIRES   ::  |        |     |        |  ::
          ::  |        `--O--'        |  ::
          ::::|:::::::::::|:::::::::::|::::
              |           |           |    RED
           RED/WHT        |           `----------- GECKO T5
             n/c          |
                          `----------------------- GECKO T6
                                           BLK

*****************   SUPERIOR ELECTRIC MOTOR   *****************
*****************       8 WIRE - SERIES       *****************

SERIES "low power" wiring for a Superior Electric 8 wire motor.

           Tie WHT/YEL + WHT/RED together, isolate.

              .----------------------------------- GECKO T3
              |         .---.         .----------- GECKO T4
              |     WHT |   | WHT     |
          YEL |     YEL |   | RED     | RED
              o         o   o         o
   _     :::::|:::::::::|:::|:::::::::|::::
  / \    ::   |         |   |         |  ::
 |   |   ::   `vvvvvvvvv'   `vvvvvvvvv'  ::
  \_/    ::     PHASE A       PHASE B    ::______
  / \    ::                              ::______|   Shaft
 |   |   ::     PHASE D       PHASE C    ::
 |   |   ::   .^^^^^^^^^.   .^^^^^^^^^.  ::
  \_/    ::   |         |   |         |  ::
 -----   :::::|:::::::::|:::|:::::::::|::::
 WIRES        o         o   o         o
          ORN |     WHT |   | WHT     | BLK
              |     ORN |   | BLK     |
              |         `---'         `----------- GECKO T5
              `----------------------------------- GECKO T6

           Tie WHT/ORN + WHT/BLK together, isolate.

*****************   SUPERIOR ELECTRIC MOTOR   *****************
*****************      8 WIRE - PARALLEL      *****************

PARALLEL "high power" wiring for a Superior Electric 8 wire motor.

           Tie YEL + WHT/RED together, connect to T3
           Tie RED + WHT/YEL together, connect to T4

              .-------------O===================== GECKO T3
              |             |
              |         .---|---------O=========== GECKO T4
              |         |   |         |
              |     WHT |   | WHT     |
          YEL |     YEL |   | RED     | RED
              o         o   o         o
   _     :::::|:::::::::|:::|:::::::::|::::
  / \    ::   |         |   |         |  ::
 |   |   ::   `vvvvvvvvv'   `vvvvvvvvv'  ::
  \_/    ::     PHASE A       PHASE B    ::______
  / \    ::                              ::______|   Shaft
 |   |   ::     PHASE D       PHASE C    ::
 |   |   ::   .^^^^^^^^^.   .^^^^^^^^^.  ::
  \_/    ::   |         |   |         |  ::
 -----   :::::|:::::::::|:::|:::::::::|::::
 WIRES        o         o   o         o
          ORN |     WHT |   | WHT     | BLK
              |     ORN |   | BLK     |
              |         |   |         |
              |         `---|---------O=========== GECKO T5
              |             |
              `-------------O===================== GECKO T6
      
           Tie ORN + WHT/BLK together, connect to T5
           Tie BLK + WHT/ORN together, connect to T6
© Copyright 1997 Greg Ercolano. All rights reserved.