mclausen
Plastic
- Joined
- Jan 13, 2014
- Location
- United States
The low hour Kitamura MyCenter 1 with Fanuc OM-C I recently purchased has a couple of issues with the spindle drive. It is a Yaskawa 626VM3 CIMR-VMS25P5.
1. Maybe 1/3 of the time the drive fails to initialize giving a F-A00 error on the drive, and a spindle error 1008 on the control. Other threads said this could be a buss charging problem due to bad resistors. I checked the resistors, and they read correctly. The capacitors are too big to check with my Fluke, but they do not appear bulging or anything obvious. I checked the diodes, and they are all around 4V.
The manual says the buss voltage should be no more that 1.2 times the supply voltage. Using the display on the drive, the buss voltage is too high at around 300V. I am running off of a CNC rated phase converter and my supply legs are 220, 220, and 227V. The drive is rated for 200-230V. Of course there could be some transients on the generated leg on starting that I do not see.
If the drive does start, the spindle works through it's entire speed range.
2. The first few times I tried a tool change, the spindle just spun for a while and the drive eventually gave a no sensor error. After that it started orienting properly for the tool change most of the time, but some of the time it appears to be orienting, but is not good enough for the arm to start. Now this could be a sensor problem, but I am wondering if is is related to the first problem.
Any thoughts would be appreciated.
1. Maybe 1/3 of the time the drive fails to initialize giving a F-A00 error on the drive, and a spindle error 1008 on the control. Other threads said this could be a buss charging problem due to bad resistors. I checked the resistors, and they read correctly. The capacitors are too big to check with my Fluke, but they do not appear bulging or anything obvious. I checked the diodes, and they are all around 4V.
The manual says the buss voltage should be no more that 1.2 times the supply voltage. Using the display on the drive, the buss voltage is too high at around 300V. I am running off of a CNC rated phase converter and my supply legs are 220, 220, and 227V. The drive is rated for 200-230V. Of course there could be some transients on the generated leg on starting that I do not see.
If the drive does start, the spindle works through it's entire speed range.
2. The first few times I tried a tool change, the spindle just spun for a while and the drive eventually gave a no sensor error. After that it started orienting properly for the tool change most of the time, but some of the time it appears to be orienting, but is not good enough for the arm to start. Now this could be a sensor problem, but I am wondering if is is related to the first problem.
Any thoughts would be appreciated.