Oriental Motor Vexta asc46ak with arduino

Other Hardware Motors, Mechanics, Power and CNC
1

Hello!

I have an ASC46AK unit (ASM46AK stepper + ASD18A-K driver). It was controlled by a Panasonic FPG-C32T2 PLC, but it is crashed. I removed the PLC, and now I would like to replace it with an arduino. Is it possible?

I have attached the manuals and catalog for the ASC46AK unit, please download it.

According to the manual the arduino would be a good choice, since it has 5VDC outputs.

I have wires only on pin 2,3,9,10,11,12,25,26 on the I/O connector of the driver, and the driver is in 2-pulse mode.

Here is what I did:

The driver has an external power supply (gnd/24vdc)

I/O connector pins:
pins 2,3 are power supply (gnd and 24VDC)
pins 10,12 go to arduino outputs.
pins 25,26 go to arduino inputs.
pins 9, 11 are not connected.
the driver and the arduino have common GND.

As the manual said, in 2-pulse mode (page 34), I have to use pin 10 (CW), and pin 12 (CCW) and send the pulse there depending on the direction. So I made a program, what send 5V pwm to pin 10.

Nothing happens. I am sure, that I do something wrong with the connection. I am kinda amateur in electronics, please help me to find out how to connect it! Thank you :slight_smile:

ASC_connection_operation.pdf (590 KB)

HM-6163-12E.pdf (675 KB)

2

Try sending 1000 pulses, you might see something then.

3

Nothing happens :frowning: The electric motorbreak is still active. I can't even feel with my hands it's trying to move or something.. :S
I really would like to solve this problem, I want to know what happens. Thanks for your reply, I hope we can solve this soon

4

Page 25 of your HM-6163-12E.pdf says that (e.g.) pins 11 and 12 are connected to a photocoupler. That would be 5V to pin 11 and connect pin 12 to an Arduino output, but remember that the pulse occurs when the pin is digitalWrite LOW.

5

Hi,
Do you have the schematics of the system with the Panasonic PLC installed?
In hind sight I think you should have made a diagram of how the system that you have pulled out was connected together.

Tom.... :slight_smile:

6

i wish I would have.. It is a used unit that I bought from Ebay, so I have no idea how it worked. I couldnt even check the PLC program, because the plc is crashed..

7

Tried to connect pin 11, and pin 12 to arduino outputs.
pin 11 gets 5V, pin 12 gets an 5V pwm (changing HIGH and LOW).

Nothing happens, the break still holds the motor.

8

If it has the electromagnetic brake option the manual you linked to says its 24V. So you
either need 24V (and a freewheel diode) or remove the brake assembly from the motor
if you don't need it.