LochinvarDan
Plastic
- Joined
- Dec 4, 2007
- Location
- Lebanon, TN
Is it worth the money? The description says its stops the spindle from dropping. Is this true? Does the spindle just drop when you loose power?
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Early Power Failure Detection
- Thread starter LochinvarDan
- Start date
- Replies 7
- Views 5,301
PBMW
Titanium
- Joined
- Aug 13, 2005
- Location
- Bremerton, Wa
As I understand it, Haas used to have a mechanical counterbalance. That was changed in about 2000 I think. Anyway, now they use the Z axis servo and you can see this by the load on the meter at rest.
When a power failure happens, the Z ball screw can drop the head a bit. The option is there to apply the axiz brake before the servo looses power.
When a power failure happens, the Z ball screw can drop the head a bit. The option is there to apply the axiz brake before the servo looses power.
Cheenist
Hot Rolled
- Joined
- Feb 23, 2004
- Location
- Alexandria Va. USA
Haas told me that without the feature the head could drop maybe .015. That's enough to toast a cutter and scrap a part. My salesman included the option no cost.
Carl
Carl
zf864
Plastic
- Joined
- Jan 5, 2008
- Location
- South Carolina
That is absolutely correct. We had a power failure last Sat. and the spindle did not move (but the machine was a '00 with a nitrogen counter balance).
For about $800 how can you wrong.
Tonytn36
Diamond
- Joined
- Dec 23, 2007
- Location
- Southeastern US
Amazing how they can get folks to pay $800 for a machine control design error fix. They must have some really good marketing people.
HuFlungDung
Diamond
- Joined
- Jan 19, 2005
- Location
- Canada
I agree, Tonytn36. Seems like they might have come up with a 'retrofit price' to put that on one of the first models that had this problem, but the new machines should have it built in.
Jared
Aluminum
- Joined
- Jan 17, 2006
- Location
- Portland, OR
We have a VF-5 with the mechanical counterbalence and a brand new VF-3 without. They included the power failure detection business for free for us as well. we have tested it several times with an indicator and flipping the breaker and it works as suggested. Our matsuura on the other hand drops the spindle about .030 when the power goes off. Toasted a part last year because of that.
