Recent content by Chris1234

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    400V & 110V in same Junction Box?

    Just a terminal block separator if your using different colour terminal block, or different colour connection strips. Or use an earth terminal block to separate them.
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    Electrical Cabinet for Industrial use.

    Afternoon, is there any requirement for electrical cabinets to be all metal? Or is any flame retardant ok? It’s for a basic PLC cabinet with inputs / outputs to a Cobot. Very light industrial, nothing ever gets damaged etc.
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    What is happening with Automation?

    Evening, There seems to be a high demand for Automation / Controls Engineers at the moment. Larger companies seem to be starting new automation departments in their companies. What do we think will happen, is it to help reduce the labour problems of the last year or so? Is it to ramp up...
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    Looking for a VFD with good scaling for display.

    That’s a way, I was hoping to find a reason to use a different drive this time though! Looking at the Siemens V20 it has a multiplier and divisor but it’s so hideous to look at! Thanks.
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    Looking for a VFD with good scaling for display.

    Evening, I currently use Rexroth VFD´s, but the scaling options are a bit sparse. Basically it has a multiplier that you can set from 0.1 to 100. For example on a pillar drill I added one to, I wanted the display to show RPM, but as the motor is geared down (for example 12:1), you only get...
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    As a Maintenance Engineer were should i go from here ?

    Sorry, only just seen this. Did you decide what to do?
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    As a Maintenance Engineer were should i go from here ?

    Electrical fault finding is way harder (in my opinion) than mechanical stuff. I´m Engineering Manager at a factory, I´ve just seen your only 20, so yes go on some courses if you think you can do it, can you tag along with the electrical people at your factory? The opinion I have always heard is...
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    Servo Drive burning out encoder input.

    Hi, both machines work the same but have obviously been wired up by different people. It was several months ago that this problem last appeared. As far as I can remember the actual wiring connections were the same, as was the earthing, but I will check when I get a minute. The encoder goes to a...
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    Servo Drive burning out encoder input.

    Thanks for the replies. To answer questions: The PSU is A din rail mounted Meanwell. I forgot to mention we have an identical machine that doesn’t suffer the same problem. We have no working oscilloscope. I tried to record voltage when the e-stop is pressed on a Fluke 289 data logging...
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    PLC Forum.

    It was this I saw, looks like it was a previous thread, not a new area on here!
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    PLC Forum.

    Hi, just noticed there is a PLC forum, how do I get into this? Thanks.
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    Servo Drive burning out encoder input.

    Evening, we have a machine (being deliberately vague) it has a main motor, which is driven by a VFD, on the spindle of the shaft driven by the motor is a rotary incremental encoder, something like 1000 pulse / revolution. This encoder controls a Servo Drive which drives a small motor for another...
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    Transitioning from installation to Maintenance in a food factory

    Did you go any further with this?
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    Why I feel electric shock when I pressing a 24V control button?

    We used to have an operator who was always getting electric shocks from the machines. I told her to stop wearing wool jumpers!
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    How to get into Controls / Automation / PLC´s.

    Evening! I´m looking into getting more into the Controls / PLC / Automation side of things. I´ve programmed a few PLC´s (Siemens) from scratch and a HMI. Some knowledge of Servo Drives (fault finding, setting basic parameters), programming VSD´s, designing / construction of control panels etc...

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