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sparkymike
@sparkymike
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Joined: Jan 7, 2025
Last seen: Sep 21, 2026
Topics: 7 / Replies: 36
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RE: GuardLogix THRSe two-hand control faults on sync unless both buttons hit together

Pulled the right station. NC wire is on a block in the rear position of the stack, the front position has the NO and a spare. Left station has the NC ...

3 weeks ago
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RE: 5069-L306ER local I/O green in the tree but no input ever turns on

Tree green means backplane green. Nothing else. Same lesson we learned.

3 weeks ago
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RE: 1769-L33ER loads a months-old program from the SD card after every power cycle

Yep. Had the exact same on a palletizer here. The card holds a copy of the project and On Power Up means every boot loads that copy over whatever was ...

3 weeks ago
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RE: ET 200SP F-DI 8x24VDC HF passivates a guard door switch with a discrepancy error

We run 500 on the DCS blocks for mushroom heads on our GuardLogix side. Different box, same idea. Is a slammed door really meant to get two contacts a...

3 weeks ago
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RE: Eleven remote racks drop 16#0204 at line start-up, 1756-EN2T fine once running

Checked all eleven. Every rack's on 2 ms, the drives too. The contractor left it that way I guess, we've never touched any of it and nobody here has o...

3 weeks ago
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RE: PowerFlex 525 F013 ground fault only on the first start each morning

Meggered at 6am before anyone touched it: 0.4 megohm. After two hours running: 60 megohm. Opened the junction box. Gasket flat as paper, no drain plu...

3 weeks ago
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RE: PNP sensor into a Micro820 sinking input reads nothing

COM on +24 is the whole thing. That makes it a sourcing input, not a sinking one, different animal. With COM at +24 the module pushes current out of t...

3 weeks ago
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RE: Eleven remote racks drop 16#0204 at line start-up, 1756-EN2T fine once running

Studio 5000 v33, EN2T firmware 11 point something. Web page says about 23000 packets per second with the line running. During start-up I saw 26000 and...

3 weeks ago
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RE: 1769-OB16 transistor outputs dying one by one on a relay panel

So the diode direction matters. Put it in backwards and it's a dead short across the coil the moment the output comes on?

3 weeks ago
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RE: PowerFlex 525 F013 ground fault only on the first start each morning

Ok, what voltage on the megger? We have a 1000V one in the shop, not sure that's the right setting for a motor. And yes, damp mornings. We're next to ...

3 weeks ago
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RE: GuardLogix THRSe two-hand control faults on sync unless both buttons hit together

Watched them online on the 1734-IB8S. Left button slow: NO goes on, NC goes off, basically together. Right button slow: NO goes on straight away, NC g...

3 weeks ago
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RE: PanelView Plus 6 clock 11 minutes off, alarm timestamps disagree with the PLC

We had a Plus 6 lose time and that one was the battery, but it went back to 2007 on every power cycle, it didn't drift. Yours keeps time through a pow...

3 weeks ago
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RE: PROFIBUS DP at 1.5 Mbit/s over a 300 m segment, far slaves drop with BF flashing

Same thing on the old press. We had a profibus run that started doing exactly this after an extension, and it turned out the electricians had used a d...

3 weeks ago
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RE: Logix press station with an OTL per state ends up pressing and ejecting at the same time

Rewrote station 3 over the weekend stop. Step is a DINT, 15 transition rungs top to bottom in reverse, one EQU rung per output. 4000 cycles Monday and...

3 weeks ago
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