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sparkymike
@sparkymike
Trusted Member
Joined: Jan 7, 2025
Last seen: Sep 21, 2026
Topics: 7 / Replies: 36
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RE: Ultrasonic level in a wet well jumps 2m and short cycles the lead pump

Right, it was the foam, and the mounting was making it worse. We moved the bracket out to 900mm off the wall over open water and dropped a 100mm PVC s...

3 weeks ago
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RE: Ultrasonic level in a wet well jumps 2m and short cycles the lead pump

Metered it at the head while it was spiking. Same swing, 6mA up to about 13mA and back, so the sensor is genuinely sending that. Lid bond is good, 0.3...

3 weeks ago
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RE: Ultrasonic level in a wet well jumps 2m and short cycles the lead pump

It's on a bracket off the access cover, maybe 300mm in from the wall, face about 4m above the slab so roughly 2.6m of clear air at normal level. Photo...

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

Sink or source means you pick. Per group. Good call on the NPN ones.

3 weeks ago
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3 weeks ago
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RE: Pt100 on a 1769-IR6 reads 8 degrees high on an 80 m run

Five tanks, one guy. Check his 4-20 loops too.

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

Two mornings clean now. It was water sitting in the junction box overnight, insulation down to nothing cold and back up once the motor had run the da...

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

Moved the NC block on the right station to the front position, NO behind it, wires landed the same as the left station. Online, both buttons now chang...

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

Set the eight 1734 racks to 20 ms, the three 1756 racks to 10 because the guarding goes through them, drives at 10. Did it offline last night and down...

3 weeks ago
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RE: 1756-DNB error 78 on node 5 after replacing a DeviceNet valve manifold

Preconfigured means someone put the label on. Ours came the same way.

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

Fitted the clip-on suppressor modules on all ten sockets, diode type, band toward +24 on every one. New card in. The drive vendor's guy was in for so...

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

One down. Who owns the SCADA box, does it get time from the domain?

3 weeks ago
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RE: CompactLogix 1769-L30ER, sump pump started by itself after the plant lost power

Changed it to the seal-in yesterday, Start OR Run, Stop and the current alarm in series, OTE on Run. Killed the panel power with the pump running, bro...

3 weeks ago
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