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Help with connecting Maxsine 220v AC servo driver
Posted: Wed Oct 27, 2021 12:34 am
by CivilCNC
I'm looking for some insight into how to connect 220v maxsine ac servo drivers to my acorn board. I understand that acorn needs step and direction but im unsure what else I need to connect from that.
The maxsine drivers have a db25 plug that I have attached a photo of..
Off of that diagram I am assuming I will need to use pins number 6 and 7, Pul- and Dir-, to connect to acorn board step and direction.. but beyond that I am not sure what else I would need from that DB25 to communicate with acorn. Any and all help is appreciated.
Thanks
Jake
Re: Help with connecting Maxsine 220v AC servo driver
Posted: Wed Oct 27, 2021 8:13 am
by tblough
You'll need the step and direction inputs at a minimum. Depending on what the digitial inputs and outputs can be configured for, you could use them for a fault output when the drive has a problem; a fault input for when the Acorn is not ready; and a fault reset to remotely reset tge drive afterca drive fault. You can also use the Z signal output as a homing input to get precise homing.
Re: Help with connecting Maxsine 220v AC servo driver
Posted: Wed Oct 27, 2021 11:01 am
by CivilCNC
tblough wrote: ↑Wed Oct 27, 2021 8:13 am
You'll need the step and direction inputs at a minimum. Depending on what the digitial inputs and outputs can be configured for, you could use them for a fault output when the drive has a problem; a fault input for when the Acorn is not ready; and a fault reset to remotely reset tge drive afterca drive fault. You can also use the Z signal output as a homing input to get precise homing.
Ok, so I was planning to try and run pins 6 and 7 to acorn step and direction, and pins 19 and 20 together to 24v. Hope this work!
Re: Help with connecting Maxsine 220v AC servo driver
Posted: Wed Oct 27, 2021 11:07 am
by CivilCNC
tblough wrote: ↑Wed Oct 27, 2021 8:13 am
You'll need the step and direction inputs at a minimum. Depending on what the digitial inputs and outputs can be configured for, you could use them for a fault output when the drive has a problem; a fault input for when the Acorn is not ready; and a fault reset to remotely reset tge drive afterca drive fault. You can also use the Z signal output as a homing input to get precise homing.
Will I even need to put 19 and 20 to 24v at acorn? Or would pins 6 and 7 be enough for it to know?
Re: Help with connecting Maxsine 220v AC servo driver
Posted: Wed Oct 27, 2021 11:48 am
by tblough
Post a link to the manual for the drive.
Re: Help with connecting Maxsine 220v AC servo driver
Posted: Wed Oct 27, 2021 12:02 pm
by CivilCNC
tblough wrote: ↑Wed Oct 27, 2021 11:48 am
Post a link to the manual for the drive.
https://cdn.shopify.com/s/files/1/0961/ ... 5457959374
Thank you for any help
Re: Help with connecting Maxsine 220v AC servo driver
Posted: Wed Oct 27, 2021 12:52 pm
by tblough
Page 13 of the manual show the connections for the step and direction signals in the single-ended diagram. It looks like Maxsine wants current limiting resistors based on the input voltage your choose (24V for Acorn Headers).
Page 14 shows the open collector Z signal you can use for homing. There are quite a few post on implementing ZRI homing on the Acorn.
Parameters 100-104 control the configuration of the digital inputs and it looks like there are functions for enable, clear alarm, and estop. Parameters 130-132 configure the digital outputs and there are functions for both drive ready, and alarm/fault out although I'm not sure the difference between the two. You may have to do some experimenting there to see which is better.
Re: Help with connecting Maxsine 220v AC servo driver
Posted: Wed Oct 27, 2021 1:22 pm
by CivilCNC
tblough wrote: ↑Wed Oct 27, 2021 12:52 pm
Page 13 of the manual show the connections for the step and direction signals in the single-ended diagram. It looks like Maxsine wants current limiting resistors based on the input voltage your choose (24V for Acorn Headers).
Page 14 shows the open collector Z signal you can use for homing. There are quite a few post on implementing ZRI homing on the Acorn.
Parameters 100-104 control the configuration of the digital inputs and it looks like there are functions for enable, clear alarm, and estop. Parameters 130-132 configure the digital outputs and there are functions for both drive ready, and alarm/fault out although I'm not sure the difference between the two. You may have to do some experimenting there to see which is better.
Awesome. Thanks for this information. Is the resistor necessary for function or is it just recommended? Also, what does VCC stand for? I'll have to figure out how to change the input voltage to 24v from 12v. Thanks a ton, I am not really good at this stuff but learning.
Re: Help with connecting Maxsine 220v AC servo driver
Posted: Wed Oct 27, 2021 1:47 pm
by tblough
Vcc refers to the positive supply voltage (24V in this case from the Acorn headers). The resistors control the amount of current used to illuminate the LED in the opto-isolators. Too much current can cause an LED to burn out. Therefore, they are necessary and not just a recommendation.
Re: Help with connecting Maxsine 220v AC servo driver
Posted: Wed Oct 27, 2021 2:24 pm
by CivilCNC
tblough wrote: ↑Wed Oct 27, 2021 1:47 pm
Vcc refers to the positive supply voltage (24V in this case from the Acorn headers). The resistors control the amount of current used to illuminate the LED in the opto-isolators. Too much current can cause an LED to burn out. Therefore, they are necessary and not just a recommendation.
Thanks. I only know of one other person who used maxsine drivers with the acorn board- I inquired about pictures and from everything he sent me it looks like put pins 6+7 (pulse and direction NEG) to the acorn step and direction inputs, and then he ran pins 19+20 (pulse and direction POS) to 24v power. I didn't see any resistor in his setup
Is this not proper?