Biesse Rover 346 Retrofit

bevins wrote: Is there an issue with energizing a relay for each limit switch and sending one contact into Linuxcnc and the other into the drive

I don't see any reason to bother with a relay, if it is a voltage-level signal can simply connect to both LinuxCNC and the drive.

andypugh wrote:

bevins wrote: Is there an issue with energizing a relay for each limit switch and sending one contact into Linuxcnc and the other into the drive

I don't see any reason to bother with a relay, if it is a voltage-level signal can simply connect to both LinuxCNC and the drive.

It is different power supplies from different sources and I dont know if there is a voltage differential between the two. I would rather keep them seperate.

I could just bring in the nput to the 7i77 as Limit switch, and fire an output to go to the drive.

bevins wrote: It is different power supplies from different sources and I dont know if there is a voltage differential between the two. I would rather keep them seperate.

I could just bring in the nput to the 7i77 as Limit switch, and fire an output to go to the drive.

Using 7i77 general-purpose outputs to the drive is likely to have the same problem with not-common GND, and has no advantage over just having the existing software-controlled amp-enable controlling the drive with the limit switch input to the drive hard-wired (or left open, depending on logic). The amp-enable outputs (ENA- / ENA+) on the 7i77 act as switches, so common-GND is not required.

bevins wrote:

beltramidave wrote: The Rovers are good machines. We have many of the different Biesse models (including the 346) where I used to work (and still do contract work). May be able to find a schematic/manual for it, unfortunately, they are Christmas shutdown now.

Dave

That would make my day if I could find schematics......

I sent you a email through this forum. I have a schematic and manual for you, just need your address and they will send it to you.

beltramidave wrote:

bevins wrote:

beltramidave wrote: The Rovers are good machines. We have many of the different Biesse models (including the 346) where I used to work (and still do contract work). May be able to find a schematic/manual for it, unfortunately, they are Christmas shutdown now.

Dave

That would make my day if I could find schematics......

I sent you a email through this forum. I have a schematic and manual for you, just need your address and they will send it to you.

I had an opld email in the forum. I updated it, I will send you a message.

Thanks

Bob

I ordered 1 X 7i70 and 2 X 7i77 and 1 X 7i74.

Cant wait to receive them. Also ordered some DIN rail supports for them, will mount them on DIN rails when they arrive. Will have to modify some of the supports cause they dont fit, but all is good.

Diving further into the machine, I found it it is using a 3 phase bridge rectifier 35 Amps at 24vdc which is good news. I could probably use this for field power and VIN locgic power. Should be very low ripple and very steady.

ok so I got the 7i74 and 7i70,7i71 cards.

Plugged them in connected to 5i25 on the second port with the ribbon cable,
powering on 5v cable like the 7i77 just for now to test and the 7i77 comes up ok but not the 7i74 and I cannot see
the 7i70, 7i71 stuff in halshow. thats probably cause 7i74 is not coming up as shown by the yellow LED on it, which I assume should flash green like 7i77 if all is ok.

so, the 5i25 says 7i77 7i74 on the sticker, so i assume the firmware is ok on the 5i25. Is there a way to check what firmware is on it?

Also the ethernet cable I am using to connect the 7i70 to the 7i74 port is suppose to be straight not cross correct?

The jumper on the 7i74 is set for power from cable.

thanks,

Bob

Here it is, the test setup.

ok,

Board configuration verified successfully.

So it has the right boards.... So I am down to 5v power not sufficient or wrong ethernet cables.

The 7i77 board works fine, in/outs etc...

The lights on the ports that the 7i70 and 7i71 boards are connected to are off.