The photocell that tells the machine when the tool is in position during the tool change, shorted out and has knocked out the control circuit. Now I don't have any power to any of the swithes. Can anybody tell me where I can reset the control circuit?
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09-29-2010, 02:46 PM #1
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ES 4020, OSP 700M Vertical Mill, Photocell Switch shorted out
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09-29-2010, 04:32 PM #2
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Most likely a 24vdc supply has been knocked out, if you have the machine schematics it should indicate a fuse or breaker, possibly on either side of the supply, AC in and DC out.
If the short is still present, it can put a switching supply in shut down until the short is removed.
Al.CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.
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09-29-2010, 05:22 PM #3
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We found the breaker, it is nonresetable. We have 117 volts on the AC side and 0 volts on the DC side. I'm going to try to find one. Thank you for your help. The photocell plug got coolant inside and shorted the connection. I bought a new photocell and new plug & wire.
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