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  1. rustynails

    Current generation under control

    You've all seen people on YouTube overloading twin and earth cables, JW etc... How are they generating current and how are they able to control that generation?
  2. N

    CONTROL PANEL ASSEMBLEY SET UP

    hello I will start an Industrial Control Panel assembley company soon !Not just for industrials ,we can make any control panel! Somebody knows ,how to find clients (customers) or competetions?i would be happy to get any advice! where can i find any advertise ? thanks!!
  3. Spaniel

    3 phase motor control conundrum.

    Hello, a mechanic friend asked me to check his hydraulic vehicle lift controls as it had failed. When I arrived the lift started working again (of course) but with some contactor chattering upon initial start for approx 5 seconds. He was happy it was working again and wanted to get home, I had...
  4. grumpyjohn01

    Motor control for chicken house

    Hi All, Due to unforseen circumstances I have inherited a chicken farmer as a customer. He has just taken on another free range egg unit and wishes to install motorised 'pop holes' so that he can remotely open and close the doors for the chickens via a GSM module.(there are also push buttons in...
  5. Ian B

    Suggestions for Lighting Control Systems

    I'm familiar with Lutron and similar high end systems, but wondered what contractors are using in the residential sector, for new smaller installations (maybe one or two rooms). For example, where a client has a mix of conventional circuits such as downlights, pendants, etc and would like basic...
  6. C

    cable from existing cooker control switch to new oven/grill

    Hi, neighbour has asked if I would run new cable from existing cooker control unit to new oven/grill. The easiest way to run cable without disruption would be under existing kitchen cupboards. Cable would be 2.5mm or 4mm depending on oven. Is it ok to run this,this way ? and would it be better...
  7. I

    Rewiring fridge to bypass thermostat (for external control)

    Hi, I'm attempting to adapt a fridge into a homebrew fermentation chamber with a digital thermometer controlling the compressor via an arduino and relays. Initially, all I need to do is take out the thermostat and rewire so that the compressor always runs when the power is on, ideally with the...
  8. I

    Digital control of contactors

    We are trying to control a bunch of 3 phase contactors using an HMI. The contactors' coils are activated by two lines of the 240V 3 phase source (L1 and L2). We are trying to figure out if the relays needed for activating the coils should be rated at 120V or 240V, or if we need another type of...
  9. M

    Does the brushed DC motor and Permanent magnet Dc motor need position feedback in the control system

    Hello guys. I am an electrical electronics engineering student. I have two questions. if you answer my questions ı'll be happy. Thank you from now. Does the brushed DC motor need position feedback in the control system? why? Does the permanent magnet dc motor need position feedback in the...
  10. C

    Using an encoder to control a VFD.

    I need to use a rotary encoder to control the speed of a VFD, so if the line speed varies then the VFD also changes. I have no experience of this. Usually I use Rexroth drives (not Indramat). Can these use an encoder easily enough? Or can you recommend one and an encoder please! Thanks.
  11. B

    Easikey 1000 plus control panel

    Hi, have an easikey 1000 plus control panel which controls two fob readers either side of the gate with an emergency switch, now someone’s been and reset the panel feeding the box and now the fob only works when entering the gate and doesn’t work if you exit there’s a red light that flashes...
  12. N

    Contactor control circuit

    Hi guys and gals, I am struggling to figure out how to achieve what seems to be a simple control circuit. I’ve wired a test rig and the system works as expected apart from the lamp not illuminating! What I am trying to achieve is a 13amp socket controlled contactor. Part of the control circuit...
  13. J

    lutron- number of control panels

    Trying to price a job where they want Lutron to control the lights. Not worked with Lutron Before- as have only done a Loxone course. I understand the basic principles of wiring the lights back to the panel and then using the lutron cable/cat6 from the panel to the wall stations quick look...
  14. S

    Control System Wiring

    Hi guys and girls, I'm looking for advice on how to better myself and my understanding of different control systems like start stop circuits. I have an average understanding of them but if I was asked to wire one from scratch I would struggle. Are there any books or good videos or even courses...
  15. the pict

    SY Control Cable LSZH to BS EN 50525-3-11 and VDE 0250

    But is it still being termed "non standard" I have used it in the past, but I cant find much in the way of a defining answer, can we use it for subs or not I have to go up a floor on a refurb with about 10 90 degree turns to get to the sub, it would be ideal, its on tray the whole way and one...
  16. Rocboni

    Load regulated feeder control

    Heres one for you automation gurus. I'm looking to control the speed of a rotary feeder or conveyor that feeds a hammer mill on a farm. In order to achieve maximum efficiency the feeder needs to be regulated via the load of the hammer mill. The 55Kw motor on the hammer will be started using a...
  17. L

    Control panel feeder cable sizing

    Hi, We have a control panel that has a vsd, plc and motor anti condensation heater. For a preliminary cable calculation for the control panel feeder cable and its associated protection, would we just total up the individual loads to arrive at an approximation and use this to size the feeder...

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