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« on: October 30, 2014, 09:01:03 PM »
Ok first thing to note is my drawing previously was wrong with regards the analogue signal, it should have been between VC and LG and NOT P15R as I said.
Now CW/CCW, you do not need them, the analogue signal tells the drive which direction it is to go. -10v to 0v is one direction 0v to +10v is the other..
The second analogue input shown on the above pic is not required for your purpose as it is to limit torque if required, you do not need to do that.
So to summarise, I think this is what you need.
You need the E-Stop input, that would be part of your machines E-Stop chain, probably via relay/ opto to connect to SG to avoid Gnd loops that Simpson mentioned.
You need the SON, that is the Enable for the drive, again relay/opto to connect it to SG.
You need to short the ST1 to SG as that will allow your rotation as per previous snippet from the manual I attached. You could decide to use ST2 instead but you can not use both as that would lock the drive, ie no rotation.
You need to connect VC to the analogue output from IP-A for that axis.
You need to connect LG to the analogue Gnd output for that axis on the IP-A.
The other connections you require are the encoder outputs from the drive, they are differential and connect to the encoder inputs on the IP-A.
The Ready may be required if you wish to input a fault signal to the IP-A, that is definitely recommended as it will let the IP-A know if an axis faults and thus motion will be stopped on all axes. This would happen anyway as you would get a following error from the IP-A as the axis is not where it is meant to be, but it is better to have the additional fault signal as an extra safety feature.
Lastly it is also good to have the reset connected to the IP-A so that the IP-A or Mac can reset a drive if it has faulted, as mentioned by Simpson36 you could just press te button on te drive but easier to let the IP-A handle it automatically or ave a screen button in Mach.
As the SON and Reset need to be shorted to SG to work then you would need to use a relay or opto to connect them, having the relay/opto controlled via the IP-A outputs.
Oh also you need to short LSP and LSN to SG.
I think that is it.
Simpson36 has mentioned about the ease of setting up a ground loop on these drives so I would listen to what he says on that matter.
Hood