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I can't just connect the motor in series with a resistor to step down the voltage?
how do you " check how easily you can generate a proper servo pulse-signal with your PLC " ?
Is there anyway to extend a shaft or rod out of the motor?
Yes I believe my PLC can. Would this affect the connection?
If the PLC output is 24V, you need a resistor divider to dampen the signal to 5V.
18k and 4.7k resistors would work just fine.
After the resistor divider would I still need the zener diode?
Oh ok. I found a little diagram for the resistor divider : **broken link removed**
So I just connect the voltage regulator in series with the resistor divider ? (Connect Vout in the diagram to the voltage regulator)
No. The resistor divider is only for the control signal.
You are confused with two things here: the control signal and operating voltage. They are two different things here. As I said:
1) You need the resistor divider for the control signal.
2) You need a (linear) voltage regulator for the operating voltage.
Oh. Yeah it's two totally different circuits , I think I understand now. One is for the control signal , the other is for the voltage input to the motor right?
Yes. There are 3 wires going in the servo. Two of them (red and black) is for the operating voltage (max 6V). And one of them (yellow) is for the signal.
You don't use servo "like any other motor". You use them like you use any standard servo. Normal servo works with 5 to 6 volts and the signal is 0.75 .. 2.25 ms pulses at 50Hz.
You can't connect a standard servo to a 24V PLC system directly. You need a 5V operating voltage and signal levels. You can dampen the signal with a resistor divider, but for the operating voltage you need a 5V regulator. You also need to check how easily you can generate a proper servo pulse-signal with your PLC.
And you don't have to modify a servo for continuous rotation. You can buy a continuous rotation servo: https://www.acroname.com/robotics/parts/R174-CONT-RO-SERVO.html
MisterT; Maybe you misunderstood me. The continuous rotation conversion would not only remove the stop on the arm but the electronics as well. Leaving you with a motor in a box of gears. At that point you can use it just like any other geared motor. No need for servo pluses. It will have only two wires going to the motor. I think you may have confused the OP now and sent them down a overly complicated route.
Andy
Yes it is the same as buying a geared motor, but it is easyer to find and cheeper and smaller.Wouldn't that be the same as buying a geared motor then? They do sell those kinds of motors connected to a box of gears at the shop that I went to.
Yes it is the same as buying a geared motor, but it is easyer to find and cheeper and smaller.
If you want the motor to stop and start at the same place all the time then I would use a servo setup, but you never said that.
Andy
MisterT; Maybe you misunderstood me. The continuous rotation conversion would not only remove the stop on the arm but the electronics as well. Leaving you with a motor in a box of gears. At that point you can use it just like any other geared motor. No need for servo pluses. It will have only two wires going to the motor. I think you may have confused the OP now and sent them down a overly complicated route.
Andy