Hello I am trying to control multiple stepper motors inside of a split flap display.
The display has all the existing electronics and technology but I have been unable to control it with the RS232 protocol that I suspected it used. The display is a Funkwerk split flap display from Koln airport.
I am now trying to control each letter individually with the existing Stepper motor on each letter, I have taken one letter section apart and need some help to identify how the motor is best controlled.
The power supply for the system uses 42VAC and 9VDC.
I am trying to see what kind of power supply I can use for stepper motor from inside the letter.
I believe it is Bi-Polar.
It does say “42 V” But wondering if I can use a different voltage.
The Motor has 4 wires
The resistance between the Red and 1st Yellow is 518 and Blue and 2nd Yellow is also 518, and any others is Over range.
PCB for Stepper, trying to figure out what kind of sensors are being used? Inferred maybe?
Any Help greatly appreciated.