1/11/2022 5:47 PM | |
Joined: 10/4/2017 Last visit: 4/21/2024 Posts: 40 Rating: (3) |
Hello, I have a machine equipped with a SINUMERIK 840D NCU 571.5. The machine has a fault on power up. PCU displays the message of no connection to NC/PLC. on the NCU side, the unit starts the initializing sequence as shown in the attached video. after status display/ phase 1 where the download from PCMCIA starts, the display holds on "b." for a while, then jumps to 6 and starts looping 0-1-6 in a fast pattern endlessly.
I need to understand the following please:
AttachmentSINUMERIK NCU 571.5 Power Up.avi (498 Downloads) |
1/12/2022 8:08 AM | |
Joined: 10/4/2017 Last visit: 4/21/2024 Posts: 40 Rating: (3) |
I have attached a video showing the power up sequence with S3 and S4 as you recommended. I tried to find the PLC server on MPI (accessible nodes) but I got again the message "no active partner found". on the PCU(HMI), I have the alarm (communication to NC failed). AttachmentPower Up with S3_1 and S4_3.avi (468 Downloads) |
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