DC Bus Voltage Protection Levels
The drive continuously monitors the DC bus voltage and includes built-in protection against over-voltage and under-voltage conditions. If the DC bus voltage exceeds or falls below the defined limits, the drive will trip to protect itself.
DC Bus Voltage Thresholds - 3 Phase Output Drives
Function | 110-120VAC Input Drive | 180-240VAC Input Drive | 380-480VAC Input Drive |
|---|---|---|---|
Braking Resistor Turn-On Voltage NoteSize 1 does not support connection of a Braking resistor | 390Vdc | 390Vdc | 780Vdc |
Overvoltage Trip Level (O-Volt) | 418Vdc | 418Vdc | 835Vdc |
Undervoltage Trip Level (U-Volt) | 160Vdc | 160Vdc | 320Vdc |