8/23/2019 9:05 AM | |
Posts: 4 Rating: (0) |
Dear All, We have 840 D system having PCU50. At power up machine stop working and showing following faults: 400260: Failure of machine control panel 1 400262: Failure of hand Held Unit 400251: NCK Has not startup 120202: Waiting for the connection to the NC/PLC At NCU upper 1 LED of each row is lit green BUT ALSO NF LED is lit RED. Please see the NCU status in the attached picture. Please help me out to solve the problem!! ------------------------------------------------------------------------------------------ |
Last edited by: Aqi at: 08/23/2019 09:13:03Last edited by: Jen_Moderator at: 08/23/2019 12:38:11New subject after splitting |
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8/23/2019 12:23 PM | |
Posts: 4 Rating: (0) |
Hi, Thanks for your reply. I checked all terminations at PROFIBUS connector and found OK.Also there is no any bus fault at PLC. What should i check next. |
8/23/2019 1:44 PM | |
Posts: 4 Rating: (0) |
Hi, Thanks for your reply. Machine was powered off since last 5 days. I will check profibus route again and let you know. |
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