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haas 20 hp drive

sanjay117

Plastic
Joined
Sep 15, 2009
Location
india
hi everybody
i have problem in haas drive
the error list states dc bus under voltage
drive semiconductors are perfect
pcb in top condition
pls help
sanjay
 
Haas wants to corner their market into a tight corner so no parts or diagrams are available. When they develop s twitch, you either throw big coin at the problem or get creative. I chose to get creative with several things.

the issue with the drives is they are a true hybrid that has some of the control aspects in the main control PCB, NOT in the drive itself. Exactly how I would make it though so I cannot knock Haas for that. They are making some smart business decisions but from a consumer POV, it gets irritating...
 
haas cct diagrams

i searched for haas cct diagrams on net, but in vain
one site claimed to have cct diag but disappeared in few hours
after that i was not able to locate this site again
can any body give me site name ?
i am still hopeful
thanks
sanjay:
 








 
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