1982 Matsuura MC-500v Retrofit

Working on getting my spindle running. I am hesitant to connect some of the signal wires. I know I need the following:

Inputs

Pin 9 = Speed command +/- 10v
Pin 10 = Signal ground

Pin 12 = Ready
Pin 15 = Signal ground
Pin 16 = FWD run
Pin 17 = REV run

Pin 22 = Spindle Orientation

My mind is not allowing me to come to a definite answer on if I should take 24vdc + to the pins to close the contact (excluding signal ground pins and speed control pins). Should I?

I normally do not have issues reading a schematic, but today I am. Also I am a little worried about burning up an expensive part like a VFD. Gun shy I guess.... Any help the connections would be wonderful.

Looks like the pins are switched to ground to enable
24V applied to any of those pins is likely to damage the drive

Just seen this.... I was starting to lean towards ground after looking at it some more. I will give it a shot and see if I can at least get the fwd led to illuminate.

Thank you PCW

***Update on spindle drive***

If you have the Yaskawa VS-626 MTII on your machine (Matsuura MC-500v2) then you will need the following:

Pins on connector 1CN

Pin 9 = Analog speed control +/- 10v
Pin 10 = Analog speed control gnd

Pin 13 = Estop
Pin 15 = Signal ground
Pin 16 = Spindle forward
Pin 17 = Spindle reverse
Pin 22 = Spindle orientation command

Pin 15 (signal ground) need to be closed to the pin needed. Such as 7i77 24v+ output goes to a relay and the relay closes the connection from pin 15 to pin needed on VFD. The VFD pins take a ground input not + voltage

Pins 9 and 10 will go to the spindle output designated on the 7i77. The 7i77 will drive these directly.

Also do not over look the outputs on the VFD.

At speed output (Just nice to have so LCNC knows that spindle is at requested speed)
Orientation complete output (need for ATC)

There are other outputs that could be handy also if used.

See previous posts for all manuals and schematics of factory wiring and components.

Working out all the relays and tool change I/o. Rewiring all the relays, contacts, and misc that needs handled for things to work. I hope to have this stuff hooked up to the 7i77 on Sunday and then start on the classic ladder for the ATC. Time to pick up and have a beer!

Just so you know, i'watching you !
Dude, where's my beer?
Nice progress, for sure.
I finished mine a few days ago, in the mean time i did another retrofit on a plasma cutter, also finished today.
Regards,
Tom

Thank you

Sounds like me right now.... Trying to finish this thing up and multiple projects right now. I hope the classic ladder will be smooth sailing. Never worked with CL before so this will get interesting I am sure.