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In an industrial laboratory environment - (metalurgical / chemical lab) - which is likely to be more available a) split phase wiring which would allow me to get a 240v supply from the two hot legs b) 3 phase wye wiring which would allow me to get a 208v supply or c) both are usually available in...

Thanks for the reply Kiljoy. I'm no expert with ferrules for use in either North America or Europe and what I've written below is my layman's understanding of what I've been told rather than what I've read from any standards. I contacted several European boot lace ferrule suppliers and...

Scottyuk - got the document - thanks for help. Drivesrock - I could fit a contactor between the drive and motor. I could use a safety relay with instantaneous and a delayed output to 1) stop / disable drive with relay's instantaneous output and then drop out the contactor with the delayed...

To skogsgurra, i'm just grateful for your opinion. Of course it's my responsibility at the end of the day but these sort of conversations are useful for highlighting what I need to get confirmed by the equipment manufacturers. To sed2developper, thanks for the link - clicked on it and went to...

Hi Skogsgurra, In your reply, the phrase "ordinary drive enable signal" - does this mean as apposed to a non-electromechanical manner? Is the electromechanical means you talk about a relay inside the drive (that's what I'm assuming you mean) as opposed to the physical wire link which you'd wire...

My drives are made by Baldor (Mint II). They require 1)a hardwired "drive enable" input as well as 2) seeing either a software enabled command or alteranively a hardwired signal on one of the other digital inputs. Unless I missunderstood him, my Baldor rep was very reticent about suggesting the...

In reply to SED2DEVELOPER Thanks for reply. The machine we are building has a guard that the operator must open / close several times during the period when he initially sets up a test piece onto a madrel. This involves an adjustment (guard open) a quick test run (guard closed) reopen, retest...

Hi, I'm building a single test rig which will be used in North America. The equipment will be examined by a NTRL. The equipment will be made in accordance with IEC 61010 (electrical lab equipment). In the UK (where the equipment is being manufactured) in addition to crimp terminals we use...

Thanks to all who've responded. All points noted with interest. Re rbulsara's comment's - I'd been under the impression that in most large laboratories 230v was readily available via receptacles to allow for easy use of small / easily portable specialist gear that might be sourced in western...

Hi, I need to apply / remove power to a servo controller/drive combination several times in the space of 5 to 10 minutes before using it for a test which might last between 1 minute and 1 hr. this cycle is repeated frequectly. I'm afraid that the rapid current surges will damage the caps / psu...

Hi, I've been asked to send a piece of laboratory equipment over to North America for use in a laboratory. It's intended to sit on a bench and plug into a receptacle. In the UK this apparatus has a 240v single phase plug which contains a 13amp fuse and all runs well - (note that the fuse...

Hi, I am in the process of designing a piece of mains powered laboratory equipment which to all intents would be classed as a machine (ie contains powered moving components that could cause injury to operator). The system is small (sits on a bench)and is not permenantly wired in. The system...