is there a Parker Standard Procedure for forming of capacitors for 890SD, 890CD and 690P?
When not formed and stored approx, 5 years or more these drives have on occasions been damaged when put in machine.
Hello Ulf. While we do not currently have a formal document procedure for forming the capacitors on those products, I can make some recommendations. For the 690 and 890SD, place the unit on a bench and connect the L1 and L2 terminals to single-phase 230 VAC (three-phase works fine also -- either, really). Let it sit for about thirty minutes to an hour with no motor hooked up. Then, power it down, wait until the drive is safe to handle (consult documented discharge times) and install into the machine.
For 890CD drives, you can hook drive drive up to an 890CS module running on 230 VAC.
I hope this helps and please let us know if you have questions.