York YTK VSD fault
working on a york yt, vsd,phase c, over current trip (@24 amps) book says if fault continues an output pole is most likely the culprit. Question is what are they calling an output pole, is it a gate driver board
Rather be golfing!
If you don't know the difference between the two, I suggest that you employ the assistance of someone who does. The mistakes made on this type eqpt have lots of numbers to the left of the decimal point on the check that pays for them, and at worst can get folks seriously injured. Besides, this isn't an open forum question.
tks- but got the answer i needed elsewhere
Rather be golfing!
ya can be just as dead right as if ya been wrong, eh? that's what GPa said...
Originally Posted by klove
about that 2-edged sword
KLOVE's point too:
basic instructions, though time-consuming, cover
fusing, wiring and motor lead length and provide a
great deal of reduction in failure of the drive system
With the change to asset management, predictive
maintenance conferences are focusing on managerial
education and the tactical steps required in following
through with this approach [3,5,6]. This
management shift from cutting expenses to
increasing efficiency is changing the maintenance
professional’s perspective from a “replace the
broken” to a more proactive root cause analysis that
identifies problems prior to failure. Leading
manufacturers have identified that electrical
component replacement (motors and drives) is the
third highest operational expense, behind wages and
energy. Hence, they are investing in training and
equipment to attach the problem.
The drive exposes the motor to millions of impulses,
thus requiring effective maintenance and installation
of both the motor and drive . Line and load
reactors, line traps and MOV Surge Arrestors  are
protective devices that are needed even though their
payback is not immediately apparent. ~~~~ WOW!