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Old 07-07-2009, 11:59 PM
plastibob plastibob is offline
 
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Originally Posted by Donkey Hotey View Post
Well, there is no 'think' in this case; either it's a vector drive machine or it's not. You need to figure out which.

Vector Drive:
rectifies high voltage, 325VDC power for all of the axis amplifiers in the machine. It also controls the spindle--it's the spindle drive amplifier. It says "Vector Drive" right on it. It controls all of the spindle's actions (speed, position, braking).

Non Vector Drive:
these machines are slightly different. The incoming power goes through a box in the same spot as the Vector Drive. In this case, that box is nothing but a 325VDC power supply. It has a rectifier bridge and some capacitors in it. From there, it takes power over to the axis amplifiers. In a non vector drive machine, they use a high-output amplifier to control the spindle. Other than the increased amperage, it looks just like the X,Y and Z amplifiers.

How are you with diagnosing electronics and finding & replacing components? There are voltages inside that cabinet that can easily kill you and maybe even light you on fire (no, I'm not kidding). Those voltages are even present after shutting off the power (stored in the capacitors in the power supply). Don't touch anything unless you absolutely know what you're doing.
I answered "I think" because I'm not at the machine and I'm going by memory. Thanks for the warning about high voltage - yes I'm well aware of the dangers. I would like to have an idea as what could be wrong before a Haas technician looks at - analogous to knowing what's wrong before a mechanic fixes your car, so you not wasting money fixing things en route to what is truly wrong. I know my limitations I'm a plastics and mechanical engineer - never liked electrical, however I can trouble shoot. I'm soliciting advise based on the error codes hoping someone has run into the same set.

The incoming voltage has been constant over a couple of hours so I don't think there is a spike. Is the order of the codes the sequence of failure events?
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