The connectors in the photos do have actual names, but for a while they were referred to as Molex connectors, because they were made by the molex company.

Thanks.
I searched Molex connectors, didn't find any thing yet.
I got this one similar as what I have here but no longer available!
https://www.aliexpress.com/item/32826380163.html
Best

 

So now we are back to driving the motor, but no clue as to the purpose. So what would be driven by such a motor? The best control scheme is highly dependent on the selected application.

 

The servo motor from a Robot CoverSlipping Machine because it not working well.

Adam

Can you post any info/photo etc, on the machine and exactly what the function of the motor is?
Max.

 

Motors are seldom the part that fails in a machine, unless they fail completely. Mostly it is mechanical stuff or changes that should not have been made. Sometimes it is mechanical part wear or else corrosion.

 

So now we are back to driving the motor, but no clue as to the purpose. So what would be driven by such a motor? The best control scheme is highly dependent on the selected application.

Can you post any info/photo etc, on the machine and exactly what the function of the motor is?
Max.

Thanks.
I would say the original topic question is solved and I can use the motor now.

The extended content about the driving the motor comes up from the tach attached at the back of the motor. I can upload more pictures about the machine, it is hard to find more Video and info. online like other machines.
Here is a link of the machine:
http://www.giangarloscientific.com/lifescience/rcm3660.html

I have contact the supply and got no be able to supply manual.
I disassembled two sensors as picture attached, no much info. on it, need help on what kind or name of them please:
The left side is a sensor, right side is just the emission of sensor.

Some more pictures of the machine that works like Robot Coverslipper :

 

One is a Slot-Opto detector, the other appears to be a proximity sensor.
Any part No's?
Max.

 

One is a Slot-Opto detector, the other appears to be a proximity sensor.
Any part No's?
Max.

Thanks.
there is nothing info. on the sensor body. and the PCB is too complex to analysis easy.
best

 

One is a Slot-Opto detector, the other appears to be a proximity sensor.
Any part No's?
Max.

Found 'S51' after clean the surface, guess like this:
https://www.chinaglobalmall.com/products/521464480090
still no much info. there.
Hooked up 5Vdc to the red/black wires and used orange/white as output to a oscilloscope didn't get any helpful information. Can input 12Vdc?
Best

 

Here is the data sheet. see PDF
https://www.datasheets360.com/part/detail/gp1s51/-4048874815524169955/
Max.

 

Here is the data sheet. see PDF
https://www.datasheets360.com/part/detail/gp1s51/-4048874815524169955/
Max.

Perfect.
Thank you very much.

 

One is a Slot-Opto detector, the other appears to be a proximity sensor.
Any part No's?
Max.

Thanks again.
Should I open a new topic?
Question is how to use the GP1S51 Slot-Opto detector？ why the datasheet say input 'Reverse Voltage' = 6V? can wire 6V to pin 1/2? need a PWM single to drive it?
Best

 

So now is this discussion about how to run the motor or is it about how to repair the machine, or is it about how to use parts from the machine for other purposes? Or is the topic now about something else??? It seems that somehow I have missed a bit, even going back over the posts.

 

Because the Maximum Reverse Voltage the emitter portion can handle is 6 volts before breakdown. You want a forward voltage of about maybe 1.2 to 2.0 volts and a forward current of 20 mA. Thus you use a series resistor for the emitter side and a open collector pull up on the output side of maybe 10K ohms. I can't find a good V forward for that part number?

Ron

 

So now is this discussion about how to run the motor or is it about how to repair the machine, or is it about how to use parts from the machine for other purposes? Or is the topic now about something else??? It seems that somehow I have missed a bit, even going back over the posts.

Thanks.
The topic was asking how to use the motor, I have got answer. I am asking how to use the GP1S51 Slot-Opto detector now, and I guess this is the farthest I can go, because I don't even know what the machine does and how. I tried to figure it out by running the 4 motors one by one, and got roughly a idea. but the machine missed too many parts to recovery all functions.
Best

 

OK, then it is a machine that you can salvage parts from, not a machine that you need to repair. That makes everything easier.
Using the opto-detector takes both a supply voltage for the light source and a supply voltage for the sensor transistor. Since the current is quite low for this sensor you need an amplifier stage of some kind to have a useful signal, unless you are feeding the signal to your arduino module.

 

OK, then it is a machine that you can salvage parts from, not a machine that you need to repair. That makes everything easier.
Using the opto-detector takes both a supply voltage for the light source and a supply voltage for the sensor transistor. Since the current is quite low for this sensor you need an amplifier stage of some kind to have a useful signal, unless you are feeding the signal to your arduino module.

Thanks,
it's clean now, do I need use PWM to drive it?
Best

 

Depending on the source for the input diode side, that max current is 50ma, so you would need a current limiting resistor to set a limit something less than this.
The output requires a load resistor, and can be placed in either side, collector or emitter to achieve inversion if needed.
PWM is not a must, any signal that will supply the current, depending on the use intended.
Max.

 

Depending on the source for the input diode side, that max current is 50ma, so you would need a current limiting resistor to set a limit something less than this.
The output requires a load resistor, and can be placed in either side, collector or emitter to achieve inversion if needed.
PWM is not a must, any signal that will supply the current, depending on the use intended.
Max.

Thanks.
I burnt one already by put 5Vdc to pin1/2.
I'll set a circuit anyway.
I used Arduino UNO and relays to control the all 4 motors Forward and reverse run well. the problem is the Arduino very easy crash, any solution to do Anti-interference? or can a Arduino system be able to used control a machine?
Best

 

I do not use Arduino, but Picmicro which is similar, the relays should isolate the Arduino, ensure power supplies are separate.
Ensure BEMF diodes across the relay coil and motor.
Max.

 

I do not use Arduino, but Picmicro which is similar, the relays should isolate the Arduino, ensure power supplies are separate.
Ensure BEMF diodes across the relay coil and motor.
Max.

Thanks.
I'll try that.
BTW. the relay is controlled by 5VDC, conduct 110VAC for motors. now I used a dc power supply get 5VDC, should I use a battery?
Best