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840C MCP

6/23/2011 2:12 PM	Rate (0)
Nanu_333 Bronze Member Joined: 5/19/2011 Last visit: 12/23/2024 Posts: 196 Rating: (5)	Dear All I have 840C MCP type no is-6FC5703-0AD03-0AA0.The MCP is not giving any response means jog or other keys are not working,The input for respective key is also not coming.I hhave checked that 5V is coming in pin 34 & 52. only MDA & feed hold, cycle stop LED's are glowing.This is the sudden occurance of problem. Please help me..

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6/23/2011 2:47 PM	Rate (0)
Ekalavya Posts: 2964 Rating: (484)	Hello... Could you make General Reset > and >End General Resetand check? Check the connections fromthe Keyboard and the flat band cable and the power supply? Regards, Ekalavya
Ekalavya Posts: 2964 Rating: (484)
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6/24/2011 11:25 AM	Rate (0)
Nanu_333 Bronze Member Joined: 5/19/2011 Last visit: 12/23/2024 Posts: 196 Rating: (5)	Thanks for reply, I have checked supply of 5V is going MCP n also check continuity of ribbon cable. I will try with general reset & let u know.

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6/29/2011 8:05 AM	Rate (0)
Nanu_333 Bronze Member Joined: 5/19/2011 Last visit: 12/23/2024 Posts: 196 Rating: (5)	Dear All, [schnippschnapp] I have checked 5V from NC interface card.But still the problem persists.Even though I isolate the MCP some inputs status still remains 1 in PLC status. Plz help.................
	Last edited by: O_Moderator at: 6/29/2011 8:26 AM
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6/29/2011 8:35 AM	Rate (0)
Nanu_333 Bronze Member Joined: 5/19/2011 Last visit: 12/23/2024 Posts: 196 Rating: (5)	I also check with general reset.but could not solve the problem.

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6/29/2011 10:46 AM	Rate (0)
Ekalavya Posts: 2964 Rating: (484)	Hello.... What is the alarm are you getting in the screen? goto PLC service and check the informations.... Regards, Ekalavya
Ekalavya Posts: 2964 Rating: (484)
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6/29/2011 11:05 AM	Rate (0)
Nanu_333 Bronze Member Joined: 5/19/2011 Last visit: 12/23/2024 Posts: 196 Rating: (5)	Thanks for reply I am not getting any alarm on screen only MCP is not working when i try to select jog or mda or auto mode,but MCP is not responding.but single block key is working properly.

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