Paul Olson
Industrial
- Jan 19, 2021
- 1
thread380-448625
I have a bystronic 4020 that runs anywhere from 20 minutes to 9 hours. What I have finally figured out is that when you first start it the drive for the turbine is running at 17 to 18 amps. As it runs the current slowly drops. When it hits 14 amps it gives the turbine not running at speed fault. It keeps running but shuts of the excitation modules. The drive is always running at 370 HZ and around 375 volts to the motor. This has been confirmed with a separate meter and the display on the drive. I am pretty confident that the motor is not changing speed because of this fact. I have been told that the gas mix might be getting too much Helium or not enough Nitrogen. Any advice woould be helpful.
I have a bystronic 4020 that runs anywhere from 20 minutes to 9 hours. What I have finally figured out is that when you first start it the drive for the turbine is running at 17 to 18 amps. As it runs the current slowly drops. When it hits 14 amps it gives the turbine not running at speed fault. It keeps running but shuts of the excitation modules. The drive is always running at 370 HZ and around 375 volts to the motor. This has been confirmed with a separate meter and the display on the drive. I am pretty confident that the motor is not changing speed because of this fact. I have been told that the gas mix might be getting too much Helium or not enough Nitrogen. Any advice woould be helpful.