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5.2.6 Frequency Settings
F9:
Maximum Frequency of Operation (Factory Default: 60.0 Hz.)
Range:40.0 - 120 Hz.
F10: Rated Frequency of Motor (base frequency)
Range:40.0 – F9 Hz. (Factory Default: 60.0 Hz.)
F11: Drive Cutoff Frequency (Factory Default: 0.50 Hz.)
Range:0.01 - 5.00 Hz.
If the base frequency is set at 40 Hz and the maximum frequency is set at 60 Hz.,
the motor will run up to 40Hz in Constant Torque mode and up to 60 Hz. in Constant
Horsepower mode. The Drive Cutoff Frequency set in F11 provides the initial
frequency output of the drive. Setting this value too high can result in increased
starting torque demand from hoist load resulting in an overcurrent (OC) fault.
Fig. 5.2.4: Motor Frequency Relationship Diagram
Output volt.
Constant Torque range
Constant Horsepower range
Output freq.
Base freq. F10
Max freq. F9
100%
Starting Dwell Time
F13
Starting Dwell
Frequency F12