Page 12
First let’s lo
ok at the layout of the RJ45 socket.
With this in mind the pinout of this socket is as follows.
1.
DC Motor +
2.
Stepper 12v *
3.
Stepper 12v *
4.
Stepper A+
5.
Stepper A-
6.
Stepper B+
7.
Stepper B-
8.
DC Motor
–
*
Both Stepper 12v rails should be connected together.
At the other end the pinouts are as follows
DB9 (Stepper motor)
Pin 1 Stepper B-
Pin 2 Stepper B+
Pin 3 Stepper A-
Pin 4 Stepper A+
Pin 5 Stepper 12V
Pin 6
–
9 Not used.
If your stepper motor moves in the wrong direction you can correct
this in software. Alternatively you can reverse the order of the stepper
motor wires A+ A- B+ B- so that they are wired B- B+ A- A+
If you wish to connect to a non robo-focus standard stepper motor you must first
ensure that at the very least your focus motor is a unipolar stepper motor rated at
