When you get to step 4. of the parameter setup section, you will tell the coin acceptor how many pulses to send for each type of coin your program. You could, for example, send one pulse for a quarter, two for a 50 cent piece, and four for a dollar coin.

Next, hold on the button "Setup" for seconds to finish. The first kind of coin has been set up so far. Please repeat No.3- No.5 until all kinds of coins has been set up. Letter "A" will appear again after all above procedures is finish

If the coin is either too forward and too back the red light located at the front of the machine will be display red instead of green. The coin denomination should be placed as indicated in the pictures. The images demonstration what the coin acceptor sho