benjybolox
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any more news on this cheat sheet section yet?
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Where did you download the cx-programmer installer from?
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super ... makes more sense now! thanks for your help
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Thanks for your help, however I have a question about the positioning of your diode. As far as I can remember, current will try an continue to flow in an inductor if interupted suddenly (hence the arcing at the contact). Fly wheel diodes provide a path for this current to continue to flow once the contacts are open, preventing the arcing. from your diagram it looks like arcing would continue to occur as there is still no path for the current to flow into the solenoid, apart from acrodd the open contacts. Before reading your post i would have put a diode between negative and terminal 3 of the relay, providing a loop for the current to flow after the contact has opened. However I do see that the positioning of your diode will prevent spikes going to the power supply. Am I missing something?
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Thanks everyone for your help. Got myself some little omron relays G2R-1-SNDI , with 24v coil and built in diode. These will do the trick Im sure
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Thanks for your help eveyone. Any reccomendations on diode type?
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As far as I know it is the steady state. I didn't think you got inrush with DC, not sure why I thought this. Should I put a diode parallel to the solenoid or is this not needed?
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Will a CPM1A with relay outputs switch 24dc, 1.5amp solenoids on and off without dying very quickly?
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Looking at using omron cpm1a instead of our current PLCs, but would really like to program using sequential function charts This is part of IEC 61131-3 so I would have assumed that cx-programmer be able to use it, however I can not see any mention of it in the literature Can anyone confirm whether or not it is possible to use this with omron plcs? Thanks Ben