New member here and knowledge thirsty.
So here goes my first question...My lathe X-axis drive(PKS-DIGIPLAN SD2) lights up a red LED. Then a TO-220 Transistor or maybe a triac, I have no idea what this may be found dead. It has a printed code _PKS0320 but nowhere in the Net I was able to find data or a cross reference for this . So, I have no idea what it may be . I am just guessing this has to be a triac. In the Parker SD2 drive user guide though, only block diagrams I have found so far. Electronic schematics of the boards... nowhere.
Just in case someone of you had access to a stepper drive like this and happen to know what kind of IC this is please help.
Last edited by asto; 24-03-2013 at 05:46 PM. Reason: syntaxis errors
It's a power transistor and fairly common.If the nagging gets really bad......Get a bigger shed:naughty:
Thanks for the response.
I am confused. Google gives me zero results when entering the part code. It is not in <Find chips > data base.
Do you know of any today's equivalent?
If it is an NPN? Collector current...Source for data maybe?
I beg your pardon gents, just checked the search result that i did earlier and i was wrong. close i can get is a darlington.If the nagging gets really bad......Get a bigger shed:naughty:
Hi to all!
I have a feeling this search is going to end up to a success.
Well, irving2008 sorry for that. What is printed on the plastic part of this transistor is not clear enough. Besides its date code reads 3283 imagine so many years since this was made. The only thing I know for sure is a TO220 package. No data other than what I see.
The closest result I found today was from a cross ref. source PKS-323-01 But their description is totally some other thing. Not even the code as you can see came close.
So, I keep searching.
I'll have a photo of that part tomorrow.
And hey, Swarfing...would you please send the link where this was described as a darlington. Two pieces of information I now need to get this drive back to life. If this is NPN, collector current and coll/emitter voltage.
Last edited by asto; 25-03-2013 at 11:04 AM.
Asto i just checked out those sites that sell obsolete parts.If the nagging gets really bad......Get a bigger shed:naughty:
looks like that's a digiplan proprietary part number, common anti-copy practice in those days. given the age & specs of the driver i'd suggest 3 options:
1. trace the circuit to determine if npn or pnp then given the spec of the driver (2.5A, 24v IIRC) choose something appropriate in a modern transistor (6 - 10A Ice-max, Vce 100v+, which is likely to be better anyway on Vce-sat and hfe specs). TBH, given other things have may have died I'd not bother.
2. buy a replacement driver off ebay (or check if members such as JohnS have some left over from upgrades)
3. use this as opportunity to upgrade to modern drivers
Last edited by irving2008; 26-03-2013 at 08:03 AM.
Just a stab?
TIP32C-PKS - SEMILAB - Ashlea Components
Just noticed their telephone number is a Swindon one?
Last edited by Swarfing; 27-03-2013 at 08:07 AM.If the nagging gets really bad......Get a bigger shed:naughty:
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