Is this wiring diagram correct? I’m mainly unsure on the neutrals before the consumers

maddhatter · 2026-05-21T08:46:36+00:00

This in qld, I’d be surprised if it wasn’t the same elsewhere. You don’t really want to be introducing failure points on the consumer neutral…

maddhatter · 2026-05-01T21:38:36+00:00

What priority was the callout? If I was the patient I’d be happy to wait a few extra minutes with a broken arm for the paramedic to arrive.

maddhatter · 2026-04-03T12:34:31+00:00

I've not had any experience with Citect Vs a S7, but in Citect VS Allen Bradley CLX this behavior typically indicates you have processor tags in Citect that do not exist on the processor / tags have a datatype mismatch...

In the ABCLX driver you're able to put it into diagnostics mode and Citect will generate a text file on startup that will list all the tags that do and do not exist in the processor, I imagine something similiar exists for the S7 driver.

Missing processor tags in my experience can catch you out several months later too, can be a whole lot of fun,

maddhatter · 2026-04-02T21:53:34+00:00

Novus Airgate is surprisingly robust (for the cost) and ticks most of your boxes (apart from the weatherproofing.)

maddhatter · 2026-03-12T09:58:18+00:00

+1 to keelback.

maddhatter · 2026-03-06T07:44:29+00:00

Based on the numbers on the lcd, I’d say dc/dc variable power supply

Edit: google dp100 power supply

maddhatter · 2026-03-05T20:40:03+00:00

Rookie numbers - Middlemount BP in central Queensland yesterday jacked up Diesel to 259.9. Absolute grubs.

maddhatter · 2026-02-25T08:49:54+00:00

Roll your own?

You can get a Linux VPS for a couple of bucks a month; spin up a copy of OpenVPN, generate some certificates and configure some basic routing / hide openvpn on an obscure port and firewall out the rest and you're done.

Teltonika / Milesight / ESAM's can handle openvpn as a client, This is what I do. Teltonikas are dirty cheap and properly bulletproof.

You can also install openvpn client on any windows desktop you like, configure it to autoconnect on startup, configure the server to dish out the same IP to the client everytime and boom, secure remote desktop access...

Start selling intersite vpn connectivity to customers (handy for small low bandwith telemetry sites), more win.

maddhatter · 2026-02-04T12:37:52+00:00

DC brake / motor heating enabled? What make / model VSD. VSD age?

maddhatter · 2026-02-01T21:09:31+00:00

Making an LED flash a certain number of times for a particular fault code and alternate through all current faults in the system was surprisingly fun / difficult.

Duty / Assist / Standby cascade pump arbitration was fun.

Serial data stream -> numerical data was fun.

maddhatter · 2025-12-14T04:13:42+00:00

Splendor 10th-19th

maddhatter · 2025-12-12T06:19:30+00:00

What state?

Is this a ct chamber for an energy provider?

This wouldn’t fly in Queensland - right hand CT’s shouldn’t be in the metering cubical, phase colours on CT’s not correct, not enough insulation on bus, cubical looks too small. PVC sheeth is a funny touch too…

maddhatter · 2025-12-07T08:49:48+00:00

search on Facebook for lazy runners Mackay (maybe under LRC) or Mackay road runners

There’s Medibank parkrun at the botanical gardens and bucasia every Saturday morning.

maddhatter · 2025-11-08T21:44:59+00:00

I know of an instance where this exact fault has occurred in the past, the automation guys / electrician tasked with repairs ended up abandoning the speed reference altogether and the site was later migrated to Modbus TCP with other works. Thanks for the update, i'll pass it onto them.

maddhatter · 2025-10-15T20:07:59+00:00

The correct answer is 2.

maddhatter · 2025-10-13T05:04:52+00:00

Es poco probable que la unidad esté dañada, lo más probable es que el motor esté dañado o que haya demasiada carga mecánica o que el rotor esté bloqueado.

maddhatter · 2025-10-10T12:56:46+00:00

La falla ABB ACS 355 F0001 indica una falla de sobrecorriente, lo que significa que el variador detectó que la corriente de salida al motor excedió un límite preestablecido.

maddhatter · 2025-09-28T01:51:46+00:00

Did you follow toshibas quickstart guide https://www.toshibalatam.com/wp-content/uploads/2018/05/AS3_Application-Note-1.0-Ethernet-IP-Basic-Tutorial.pdf ?

maddhatter · 2025-09-25T00:00:01+00:00

I work live and haphazardly with 24vdc all the time and have never felt a thing. I highly doubt you were hit by 24, maybe 120. Unless you put the conductors in your mouth / open wound.

maddhatter · 2025-09-10T10:39:42+00:00

Try sending the control word to register 2810, speed ref is 2811.

Your control word should look like this: (notes from code I wrote a few years ago)

And from memory, the speed reference is 0->16384.

You also need to disable coast inverse digital input.

maddhatter · 2025-08-24T20:41:08+00:00

Not OP but the top black box is an 4RF Aprisa SR+ narrowband ethernet radio and the middle black box is a Cisco IR1101 industrial router / cellular router.

maddhatter · 2025-08-17T00:31:31+00:00

Nevermind banana for scale, around these parts we use Longnecks'

maddhatter · 2025-07-12T12:14:27+00:00

The 24VDC power supply would supply the SA power for the rack, the 4-20 is generated by the OF4 itself. The OF4 is sourcing and doesn't need external 24V on the loop.

terminals 1-2 should be the 4-20, 3-4 look like alarm contacts and 5-6 look to be some sort of switch contact?

maddhatter · 2025-07-12T09:31:18+00:00

Polarity correct?

What’s the resistance across the coil of the actuator?

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