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Can you please sendme a manual copy to [email protected] ?

Check CH28 with oscilloscope with motor running. 0 to 10 votls is desviation from comand value. If error signal is error feedback singal, if is high for long time you will have error 2. Other option...

Your driver have 4 leds for error indicator?

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Your driver has 4 leds for error indicator?

https://www.cnczone.com/forums/fanuc/375856-fanuc-series-3-ac-servo-amp-failure.html

When you replace it clean well PCB, the area that is under the amplifier, to ensure isolation.
If you want to measure the fault, first connect the scope in current channels, CH22 CH24, if you have...

Yes, the symptoms were the same, motor is running and it makes a noise. When a current sensor is faulting it measure less current and the feedback increases current in one phase motor. Now is...

I had a nightmare with a similar driver and a intermitent failure :)
https://www.youtube.com/watch?v=goXOIAL01F0
https://www.youtube.com/watch?v=KKU_D26XOUk

Thanks for your answer Craig, motor is good, the problem was in the VFD. I want to mathematical model the motor. I was wondering if I could connect directly to 220V. One member forum has done...

Thanks Robowi, do you know how I can calculate the current in a motor with no load, motor has 0.9mH 0.09ohms at 200V 50 Hz 4 poles

Check current signals, CH22, CH24, CH26,
this driver is know for bad current isolated amplifiers
CRU and CRV signals in diagram produces CH22 CH24 and CH26, ISA1 and ISA2 are isolated amplifiers...

Spindle driver has one bad current amplifier, do you solve the problem?

Fairly? Do you had ever connected a 400V servo motor to mains?

and it will dissipate 44.000 wats in 0.09 ohms!!!! this is the reason why motors designed for inverters can't be connected directly to mains. Try it and you will see what happens.

It will increase the current, in my previous calculus I have used only coil inductance.

Thanks Man, but a low inductor motor with 0.9mH will draw 700Amp reactive current at 50Hz and 200V !!!!! Is a motor designed to work only with a VFD.

Thanks for all, motor was OK, report from remanufacturer had one more zero, in delta is 0,09 ohms, not 0,009 ohms. The problem was a intermitent failure in one of the current meters, isolated...

Thanks Robowi, I can measure inductance too, but I need a good motor to compare, now my motor has 0.9mH and 0.003 ohms phase to phase.

Anyone else has a FANUC spindle motor and a low resistance meter? :)

Thanks John-100, is what I´ve seen.
Now I only need to measure a good motor to compare, or a FANUC motor specs to claim at repair center.
I´m wating for FANUC EU answer

I have to check it, all that I have is the report from a repair center. When I test the motor with my oscilloscope and a current probe, motor draws 180 amp on start up. Repair center saids that in...

Hi, inductance is 0.9mH, I´have used a WAYNE KERR 6425 RLC METER

Thanks, do you have any way to draw the motor with 1 amp DC for example and measure the voltage in mv, or a megger. FKUKE V87 resolution is 0.1 ohms only

Yes all three with the same value, I have a driver error over current in dc link, but with a little 2.2kw motor driver works. Fanuc doesn´t have resistance winding data for this type of motor

yes, but I need to know resistance value pahse to pase for this kind of motor to determine if is good or not, I think that is about 0.040 ohms, but I have 0.008.

Hi

Someone knows de resistance value phase to phase for a AC spindle motor 10hp, A06B-1008-B200.

I read 0,008 ohms, is a 200V 35amp motor, I have over current in dc link, but with a 2.2kw motor...

https://www.youtube.com/watch?v=KKU_D26XOUk

I have overcurrent problems on my LB15 spindle driver. I suspect bad spin motor, is a 11kw motor. I checked inductance, phase to phase, is 0.9 mH, inductance not ohms. Is there someone who knows the...

Testing a Fanuc SDU


https://www.youtube.com/watch?v=goXOIAL01F0&feature=youtu.be

Hi, this is the link with the bad file,ayone knows where is checksum?

https://1drv.ms/u/s!Ag5s11mpTf5CgZxn37o7egd2NHpWWA

Thanks
Regard

Hi, I need U12 RAM content .PM030BS4075RH-0 9105-0009-002 Could anyone read and send me bin please?
I have bad checksum.

Thanks
Regards