The 2.2Kw Chinese Spindles - Info, Setup and Advice + More

[JAZZCNC]

Hi Leadhead

These are the 2 options I thought about

1) Don't bother and have a separate connection for you water pump. Switch it on manually before starting the CNC/VFD. This is what I have done
2) Or operate it through the break-out board on your cnc controller using a relay. You would then issue some Gcode to start the pump before the spindle start Gcode

Hope this helps
Mike

No need to do either of those as it's very easy to let the VFD operate it.

There is relay built into the VFD which can be set up to turn on/off when spindle spins. By default it's set to operate when a fault occurs but with few parameter changes can be set
for on/off.

The relay connections are FB & FC just feed either the positive or Negative of the power going to pump through these terminals.
Then change parameter for these relays to work when Fwd is pressed, I think the parameter is PD52 or 53 but not got the manual in front of me so I can not check.

The relay then just becomes a switch to the pump.

[MikeyC38]

Hi Jazz
As always the font of wisdom for us newbies. I forgot about these ports on the VFD. I was thinking about these to enhance my safety system by getting the relay ( based on your wonderful simple design emergency stop setup) to signal the VFD to stop when the safety button switch is operated.

Cheers
Mike

[JAZZCNC]

Hi Jazz
As always the font of wisdom for us newbies. I forgot about these ports on the VFD. I was thinking about these to enhance my safety system by getting the relay ( based on your wonderful simple design emergency stop setup) to signal the VFD to stop when the safety button switch is operated.

Cheers
Mike

Yep, that would work and there are various ways it can be done, to be honest. The controller or Bob your using will also play some part in which approach to use.

If I'm using a controller that doesn't have relays built into it then I control a relay for on/off using an Output. I then use this relay to turn the water pump on as well.