Parker SD2 drive question

seaman77 · Sat 23 Mar , 2013 17:30 pm

Hi everyone!

My Orac stepper drive...the SD2 has the red led constantly on and a dead transistor or is it a triac. I can't tell.
Maybe someone can tell by description. It is a TO220 package with its metal back pushing with the aid of a flat spring against the huge heat sink and lots of heat sink paste. There is a bunch of them in the SD2 Parker drive.
I have searched most databases in internet but i could not find datasheet for this part...The PKS0320 date code 0383.
Anyone can help?

Thanks!

Mon 25 Mar , 2013 11:43 am

I'd post a photo and try emailing a link to Parker https://www.parker.com

seaman77 · Mon 25 Mar , 2013 12:31 pm

Thanks!
That was something I should have thought of before anything else.

cheers

seaman77 · Thu 28 Mar , 2013 21:15 pm

...Drive SD2 repaired. Dead power transistor coded PKS0320 was actually a TIP32C direct replacement as a part with the code PKS0320 does not and never existed. I do not understand the reason for printing false codes in part like this.

: PKS0320.jpg (196.46 KiB) Viewed 8597 times

cheers

Wed 03 Apr , 2013 11:15 am

Glad you got to the bottom of it and it's useful info for anyone else.
Wonder if the PKS was Parker's own spares part code ?

seaman77 · Wed 03 Apr , 2013 23:38 pm

It could be a component exclusively made for Parker yes!

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