OP
gerard
I will double check - sorry about that. I'm pretty sure they are CFW-10 drives, I will check this out.
Discuss DOL starting 3 Ph Motor and an RCD in the Canada area at ElectriciansForums.net
With reply's like this Im reluctant to post here anymore. Sorry chap PM me if you like.
James
hi all
been installaing a few abb vsd's and under manufacturers info it specs that if using rcd's they must be of a B type..... 300ma td. unsure if this is the case with other drives but i would imagine that it is because of high earth leakage.
hope this is of use
regards
gary
lewlec,
Almost certainly due to high earth leakage by design of the drives rather than by any faults though.
No - the frequency has to remain constant for this application. Didn't try taking it out either.
As discussed previously in this section, I think the VFDs might be on the small side - this is not helping the situation either. Will try the 300mA RCD and see how it goes.....
No, not the output frequency... I said the switching frequency.
By taking out the inverter you can find if the RCD still trips, which can point to another issue, perhaps.
Is the inverter good?
Has this machine ran at all since you've had it?
.
Take a look at page 86, parameter P297... switching frequency. Decrease it. I have seen in IMO manuals that switching freq. contributes to RCD tripping.
Reply to DOL starting 3 Ph Motor and an RCD in the Canada area at ElectriciansForums.net
We get it, advertisements are annoying!
Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.