Rockwell Automation Liqui-Flo DBT Reach Drive - Manual (Page 237)

Application Notes Appendix D-23
Voltage Tolerance
Example:
Calculate the maximum power of a 5 HP, 460V motor connected to a 480V rated drive
supplied with 342V Actual Line Voltage input.
• Actual Line Voltage / Nominal Motor Voltage = 74.3%
• 74.3%
× 60 Hz = 44.6 Hz
Table D.4 – Voltage Tolerance
Drive
Rating
Nominal
Line Voltage
Nominale
Motor Voltage
Drive Full
Power Range
Drive
Operating
Range
380-400 380 380* 380-528 342-528
400 400 400-528
460 460 528
Drive Full Power Range = Nominal Motor Voltage to Drive Rated Voltage
+10%.
Rated power is available across the entire Drive Full
Power Range.
Drive Operating Range = Lowest (*) Nominal Motor Voltage –10% to Drive
Rated Voltage +10%.
Drive Output is linearly derated when Actual Line
Voltage is less than the Nominal Motor Voltage.
HP @ Motor (Drive Output)
Actual Line Voltage (Drive Input)
Full Power Range
Drive Operating Range
Nominal Motor Voltage -10%
Nominal Motor Voltage
Derated Power Range
Drive Rated Voltage
Drive Rated Voltage +10%