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840D NCU- all leds are ON and 7 seg flashes 1.004

10/14/2024 2:41 PM	Rate (0)
lino_nobre Posts: 6 Rating: (0)	After power on I noticed "waiting for HMI" message on iTC panel. Checking on electric cabinet I faced not looking good all leds on and error 1.004 on 7-segment display (video in attachement). I would kindly apreciate any insigt regarding this issue. Regards. Attachment NCUerror_1.004.mov (250 Downloads)
lino_nobre Posts: 6 Rating: (0)
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10/16/2024 7:30 AM	Rate (0)
VRBABU Joined: 3/24/2023 Last visit: 12/8/2025 Posts: 2 Rating: (0)	Hello This is because of the NCU is not able to read the system software from the CF card .try to clear the NC & PLC once . if the problem persist try to change the CF card with an appropriate system software. with regards VRBABU
	Last edited by: VRBABU at: 10/16/2024 07:33:14
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10/17/2024 5:30 AM	Rate (0)
lino_nobre Posts: 6 Rating: (0)	Hi, Thanks for your approach. You mean SVC/NCK=1 & PLC=3 and boot up? If so same error persists. Regards, Lino Attachment IMG_2924.jpeg (223 Downloads)
lino_nobre Posts: 6 Rating: (0)
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11/7/2024 1:05 AM	Rate (0)
lino_nobre Posts: 6 Rating: (0)	Just to close the thread, after NCU replacement system boot up.
lino_nobre Posts: 6 Rating: (0)
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This contribution was helpful to 1 thankful Users nulizhang

11/7/2024 4:36 PM	Rate (0)
nulizhang Platinum Expert Joined: 10/17/2007 Last visit: 12/30/2025 Posts: 4568 Rating: (416)	That is a great decision ! lino_nobre Just to close the thread, after NCU replacement system boot up.
	If you like my comments please use "Thank" bottom left or Rating Top right
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