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#1
 
11-23-2005, 02:25 AM
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Hello All, Need to connect relays,limited to 1 amp@48v.per channel. Can I use 1.3 amp@24v.relay? Am using 24Vpower supply, would this need a resistor,or? TIA Bear  |
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#2
11-23-2005, 07:08 AM
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| I would assume that current is the rating of the contact, not the coil current. If you don't have the specs on the relay, for a DC type, just measure the resistance of the coil and use ohms law. Typically a small 24vdc relay coil current would be 20~80ma. Al.
__________________ CNC, Mechatronics Integration and Machine Design. “Logic will get you from A to B. Imagination will take you everywhere.” Albert E. |
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#3
11-23-2005, 04:52 PM
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| Thanks for reply Al Not sure what Im doing.The control box "note" says "limit1amp@48v." Im assuming I supply voltage to control box pin1,when program M3 is read,connects pin2 active makes circut.3/4,5/6,and so on (on control box, not computer pins)Has 4 connections,I believe optisolated.Am wondering(my relay reads 1.3@24v,am using 24 v.ac.from transformer) is thi sounding correct? TIA Bear |
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#4
11-23-2005, 05:23 PM
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| I would guess thats the contact rating, measure the resistance of the coil and divide it into 24 and this will give you the current of the coil. Al.
__________________ CNC, Mechatronics Integration and Machine Design. “Logic will get you from A to B. Imagination will take you everywhere.” Albert E. |
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