Quick addition of 2.2kw spindle with VFD - Is this possible?

[ngwagwa]

Sorry, always closed = zero resistance, I was expecting to get a reading of 1 with the spindle off in mach3 and 0 when turned on. I did at one point get the VFD to start the motor when power was turned off to my control box but that isn't much use! And yes a chinese huanyang VFD. I have it working fine on manuak with PD001 set at 0.
I live in Preston but my workshop is in Chorley.

[Doddy]

I was expecting to get a reading of 1 with the spindle off in mach3 and 0 when turned on.
I live in Preston but my workshop is in Chorley.

A reading of 1?, okay, gonna ignore that and keep with the "always closed" statement - so the Spindle V5 card isn't actuating the CW/CCW outputs?, that sounds more like an integration issue between the SpindleV5 and the controlling PC/Mach3.

Step forward a bit to where they are working, and you couple the N/O CW output and ground between the VFD FOR and DCM pins, then set PD001 to 1 and that's your motor on/off control, and the 0-10V I think you've got working onto the VI input and set the PD001 to 1. And Bobs your uncle.

Looking at the Spindle V5 manual - this takes a Step/Dir input from a BoB - which clearly is set up okay, but it also expects a digital output from the BoB to actuate the Run control - which I'm guessing is what the Spindle V5 uses to drive either CCW or CW output relays. For that - check that the RUN input on the Spindle V5 is connected to a discrete output on the BoB, and that is bound to an output number in Mach3, and that output is specified in the Spindle Control page on Mach3. Details in the user manual. The goal here must be to get the CW relay switching.

Chorley?, 8 miles down the road. Some decent micro bars. Not far to travel. Only down side was I met my wife from there

[ngwagwa]

That's right - the spindleV5 is controlling the speed but the on/off is controlled via the Sprint 400. Don't ask me why it was done that way.

Instead of getting the CW relay switch working would it not be easier to use the BOB spindle output?

micro bars as in ale houses?

EDIT: by the way putting the original spindle back on is looking less likely each day :)

[Doddy]

The only point with the Spindle providing On/Off is the CW/CCW control - if you think you'll use reverse.

You could use the BoB spindle output - it's just another discrete output, but you'll lose the reversing option (assuming the SpindleV5 does 0-10 and separately CW/CCW depending on the DIR input).

[ngwagwa]

Don't expect to want reverse and using the BOB spindle output seems easier than trying to activate the Spindle V5 CW/CCW relays.

[ngwagwa]

Now I am confused. Pins 16 & 17 (spindle on/dir) go from BOB to spindle 5 board but it's the sprint that starts the spindle and I can't see how the sprint gets a signal to start the motor.

[Doddy]

My guess?, and it is a guess... the Sprint is configured such that a non-zero demand on the analogue input starts the spindle-motor. That short-cuts the need for a FOR/REV control.

Doesn't work for the Chinese VFD. You still need to source the spindle relay outputs through the BoB (and optionally through the Spindle V5) to the VFD

[Doddy]

Now I am confused. Pins 16 & 17 (spindle on/dir)

That's spindle PWM (or Step)/DIR, isn't it? Rather than a discrete ON(/OFF)