Editing Regenerative resistor
Your changes will be displayed to readers once an authorized user accepts them. (help) |
Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to your username, along with other benefits.
The edit can be undone.
Please check the comparison below to verify that this is what you want to do, and then save the changes below to finish undoing the edit.
Latest revision | Your text | ||
Line 6: | Line 6: | ||
==Overvoltage faults== | ==Overvoltage faults== | ||
+ | Servo drive attached to a motor can act two ways: energy supply and energy consumer. The energy consumer behavior occurs during decelerations and during fast torque reversals, and this causes current flow from motor to drive power supply capacitors. If the generated energy is not absorbed anywhere, the voltage of HV DC bus capacitors will rise above overvoltage threshold ([[FOV]]) and trigger an software cleanable overvoltage fault. Overvoltage faults that are caused by returned energy from motor, can be dealt with a [[regenerative resistor]] and with optional extra capacitance in HV DC bus. | ||
+ | |||
Scenarios where returned energy is causing the rise of HV DC bus voltage: | Scenarios where returned energy is causing the rise of HV DC bus voltage: | ||
*Deceleration of motor speed when there is significant amount of energy stored in mechanical motion (rotating inertia or moving mass). This typically occurs with spindles and linear axes. | *Deceleration of motor speed when there is significant amount of energy stored in mechanical motion (rotating inertia or moving mass). This typically occurs with spindles and linear axes. | ||
Line 17: | Line 19: | ||
==See also== | ==See also== | ||
− | *[[Overvoltage and undervoltage faults | + | *[[Overvoltage and undervoltage faults]] |
− | + | ||
− | + |