Have a machine we bought knowing there was a spindle drive glitch somewhere. Finally got it under power. Before so the drive was cleaned up and visually inspected but not removed. On power up, the drive seemed healthy as it received 3 phase power. However, it seemed on this machine the DC buss does not get charged up until you initiate all the drives and such. As I attempt to do that, I get an F-A00 alarm which appears to be a charging error. When the drive is initially powered, all boards are powered, parameters ar accessible, etc. All seems to work well, but when it tried to initialize, it doesn't like that.
Now...... I am already onto 'something' as I discovered the morons before had cross threaded L1 into the drive so though the screw was tight, the terminals certainly were not. There was evidence of arcing there but not severe. However, that could have easily thrown things when under load. I am not sure if a Yaskawa will show a diode problem, resistor, etc, or just say "can't do it".....?
One would think the loss of L1 would immediately get flagged but I have not been able to even get the DC buss charged. I have the screws tight now and was really thinking I found the issue but now wondering what damage that did. The charge light has never lit for me. so I feel confident when the drive tries to charge, something immediately trips and puts her in limp mode.
Now...... I am already onto 'something' as I discovered the morons before had cross threaded L1 into the drive so though the screw was tight, the terminals certainly were not. There was evidence of arcing there but not severe. However, that could have easily thrown things when under load. I am not sure if a Yaskawa will show a diode problem, resistor, etc, or just say "can't do it".....?
One would think the loss of L1 would immediately get flagged but I have not been able to even get the DC buss charged. I have the screws tight now and was really thinking I found the issue but now wondering what damage that did. The charge light has never lit for me. so I feel confident when the drive tries to charge, something immediately trips and puts her in limp mode.