Get alarm when spindle is running. See picture of ladder

[stevenl]

Got an 1988 Denford Cyclone with Fanuc 0T-B control.

When im running the spindle in auto mode the spindle runs up to programmed speed but after a few seconds the control comes with this alarm.

2006 "Spindle failed to reach speed"

I found the alarm in the PLC and parameters sheet but i dont quite understand whats happening.

Could anyone explain where i should look or is there any parameter i can change to remove this alarm or its action?
Because the spindle runs fine and the RPM readout on the CRT is spot on.

Steven

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[Martin]

Can you try setting Diagnostic 453.0 to 1. (Diagnostic Setup Marker)

[stevenl]

Yes i did do that now. But no difference. Did i set 1 at the correct position? What will this change do?

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[Martin]

No

Bit 0 on the right. It counts from right which is 0 to the left which is 7.

453.0 set up timers & counters. It should only change to a 1 for a fraction of a second.

I would have thought you should have a few more set in 450's. Have you got a machine serial number I can check it against.

[stevenl]

Aha! I tried that also but the bit just dissapeared so i thought i did not work. But if that how it supposed to be i will try to start up the machine again. I did not try to run the machine after this.

The serial number i dont know as it dont say anyware on the machine or in the documentation. The only thing i got is the buyers name (company name) and date. Its june 1988 and bought by a company named Bachke maskin from norway.

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[stevenl]

I found the serial number now. It stood on the machine display. The parameter 453 bit change did not work. Still the same error when spindle is running.

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[stevenl]

Do anyone have any toughts here? I have not got any further with this fault. I need some help to what i can check to get this solved.

The ladder tells which signals that gives this alarm, but I dont understand it. Is this something i can disable, because everything seem to work perfect.


Steven

[Martin]

It may be easier to reset the Fanuc control & insert the parameters & diagnostics again if you have a copy of them.

[stevenl]

Yes, sure i can do that.

I did plot in all the parameters and diagnostics when i got the machine. But i think the parameters i got is for a OT-C machine, but my machine is a OT-B. Does this have anything to say?

Could you Martin find the correct parameters? I found the serial number on the control, it is: E03381. PLC version: 2.013D. Date: 27.06.1988

[Martin]

The sheet with the 450 diagnostics is not in the folder so you will need to set them manually. Remember to set 453.0 to a 1.

Cyclone OT-B machine specific parameters(E03381)
535 = 95
536 = 45
700 = 5000
701 = 1000
704 = -150000
705 = -200000
900 = 00111000
901 = 11100000
902 = 100
903 = 100
905 = 1
906 = 1
907 = 01010000
909 = 01000000

[stevenl]

Great! Thank you very much I will try to put all the parameters inn from scratch

[stevenl]

OK, i did actually solve the problem now. But not in a way that i expected. Because i remember i got it working sometimes before when i gave it a knock in the controlpanel box i front. So i tried to open this box and "reseat" all the connectors and modules. And after this the alarm is gone. So it must have been a loose connection for this signal somewhere. I cant understand what this signal does in the front controlpanel. But im happy now.

Thanks for all your help guys.

Steven