Power

From the Power screen, you can view and configure the drive power settings as follows.

The (Undefined variable: Primary.DriveVariant_MKD)-C displays an overview of power for all devices, while the (Undefined variable: Primary.DriveVariant_MKD)-N displays power only for that device.

Section Element Description Parameter Parameter Parameter
Voltage VBus Gauge A graphical gauge representation of the DC bus voltage, including ranges for warnings and faults. The slider adjusts the zoom level of the gauge. VBUS.VALUE VBUS.VALUE VBUS.VALUE
Under Voltage Fault Threshold Sets the value at which an under voltage fault will occur

VBUS.UVFTHRESH

VBUS.UVFTHRESH VBUS.UVFTHRESH
Under Voltage Warning Threshold Sets the value at which an under voltage warning will occur VBUS.UVWTHRESH VBUS.UVWTHRESH VBUS.UVWTHRESH
Actual Value Displays the current actual voltage value VBUS.VALUE VBUS.VALUE VBUS.VALUE
Over Voltage Warning Threshold Sets value at which an over voltage warning will occur. Setting a value of 0 generates no warning. VBUS.OVWTHRESH VBUS.OVWTHRESH VBUS.OVWTHRESH
Over Voltage Fault Threshold Sets value at which an over voltage fault will occur VBUS.OVFTHRESH VBUS.OVFTHRESH VBUS.OVFTHRESH
Under Voltage Fault Mode Sets the behavior for when an under voltage fault are monitored. VBUS.UVMODE VBUS.UVMODE VBUS.UVMODE
Input Input Mains Sets whether the mains input is DC or AC. VBUS.DCOPERATION  
Nominal AC Line Sets the operating voltage of the drive. VBUS.ACNOMINAL    
AC Line Phases Sets whether the AC line input to the DC bus is single or three phase, and whether phase loss detection is active. VBUS.THREEPHASE    
Input Input Mains Sets whether the mains input is DC or AC.    
Operating Voltage Used to change voltage thresholds, allowing -07 drive types to work at a -06 drive's voltage threshold.   VBUS.HALFVOLT  
Precharge Timeout Sets a timeout for the (Undefined variable: Primary.DriveVariant_MKD)-C's precharge process.      
Input Operating Voltage Used to change voltage thresholds, allowing -07 drive types to work at a -06 drive's voltage threshold.     VBUS.HALFVOLT

See Regeneration for more information about regen resistors and sizing regen resistors. 

Operating Voltage

Operating voltage can be selected by the user to allow 480VAC drives to work on 240VAC input supplies.

The VBUS.ACNOMINAL parameter has an effect on the following voltage-thresholds:

  1. DC-bus over-voltage threshold (see VBUS.OVFTHRESH).
  2. The regen-resistor enable/disable voltage thresholds.
  3. The inrush-relay enable/disable voltage thresholds.

A power-cycle is needed after changing the value and saving the parameter on the NV memory of the Drive, since the voltage thresholds mentioned above are read during the boot-sequence of the drive.