Just blown up my inverter

[EddyCurrent]

wiring diagram ? or did you just connect the power in and motor without adding any control wiring ?

[Lodds]

240v Inverter

Blue to R
Brown to S
Earth to Earth

spindle

Using normal 13amp extension cable

Blue to U
Brown to V
Yel/grn to W

[EddyCurrent]

A proper diagram is essential, for your own sake too, but it seems you don't have one.
So just to be clear, you connected the spindle cable cores to UVW at the inverter, and where did you connect the other ends at the spindle itself ?. (I don't have one of these spindles so I'm not sure what terminals are provided) Did you use any of the cores as an earth wire ?

[Lodds]

No I never used an earth, the plug has 4 connectors and one of them is left empty (No 4)

My soldering is NOT the best in the world and I'm wondering if there was a short in the plug on the spindle. I didn't see anything when I took it apart could that have caused the damage if it had shorted?

[EddyCurrent]

"No I never used an earth, the plug has 4 connectors and one of them is left empty (No 4) "

That sounds good and correct.
Pin 1 Phase 1
Pin 2 Phase 2
Pin 3 Phase 3
Pin 4 Not Connected

The spindle needs checking out as cropwell explained.
Regarding parameters I would change these.(when you get the new vfd)

PD014 acceleration time, 1 second is too short in my view, 5 seconds sounds better especially in the early stages of setting up.
PD015 decceleration time, same as above set to 5
PD142 motor rated current, set this to current specified for the spindle, I looked at some and the correct figure seems to be 8.5
PD143 motor poles, I don't know myself how many poles these spindles have but if people are using a value of 2 then it seems reasonable.
PD001 set this to 0 if you are using the keypad controls.

I'm wondering if you have reversed the motor several times without realising it from the front panel buttons, with ramp times of 1 second this may have caused some damage.
As you say, a short at the spindle end would not do the vfd much good.

[EddyCurrent]

Also check this;

PD026 stopping mode, it should be set to 0 (decceleration stop)

Just to help things along in future, I would always let the spindle come to a standstill before pressing RUN again.

[Clive S]

No I never used an earth, the plug has 4 connectors and one of them is left empty (No 4)

My soldering is the best in the world and I'm wondering if there was a short in the plug on the spindle. I didn't see anything when I took it apart could that have caused the damage if it had shorted?

A good photo of the wiring and spindle plug would help, was the plug connected securely as a loose connection can be bad for the vfd.

I take it you meant (not the best) as a dry joint could also cause problems.

[magicniner]

Don't mess with it, return it as faulty!
A decent VFD will detect an incorrect load, be it short or one or more disconnected phase (some detect open circuit but not all) and simply refuse to drive it with an appropriate error code rather than emit Magic Smoke!.
You shouldn't be able to bugger a VFD even by shorting the output, it should detect current overload, shut down and give you a meaningful error.
It's a bad 'un, send it back and buy something decent!
Regards,
Nick

[Lodds]

was the plug connected securely as a loose connection can be bad for the vfd.

I take it you meant (not the best) as a dry joint could also cause problems.

To be honest I think it was a bit of both. I have placed an order for a new VFD and spindle, and have ordered 2 additional plugs so I can get the soldering right on my next attempt.

You guys are the best, thanks for all your help and not being judgemental. Merry Christmas to you all.

[Lodds]

Just wired up the new VFD and changed the programming as before.

When I press "Run|" the spindle turns for about 2sec then I get an E.ora message and the spindle stops, any ideas? Seems I have been here before.