E6582233
F-34
6
6.13.6 Output voltage adjustment/Supply voltage correction
: Base frequency voltage 1
: Supply voltage correction (output voltage limitation)
Function
Base frequency voltage1
The parameter adjusts the voltage corresponding to the base frequency 1 so that no
voltage exceeding the set value is put out. (This function is enabled only when is set
to either "0" or "1".)
Supply voltage correction
The parameter maintains a constant V/F ratio, even when the input voltage decreases. The
torque during low-speed operation is prevented from decreasing.
Supply voltage correction: Maintains a constant V/F ratio, even when the input voltage fluctuates.
Output voltage limitation: Limits the voltage at frequencies exceeding the base frequency. Applied when
operating a special motor with low induced voltage.
[Parameter setting]
Title Function Ad
ustment ran
e Default settin
Base frequency voltage1 50
660 (V
400
Supply voltage correction
(output voltage limitation)
0: Supply voltage uncorrected,
output voltage limited
1: Supply voltage corrected,
output voltage limited
2: Supply voltage uncorrected,
output voltage unlimited
3: Supply voltage corrected,
output voltage unlimited
2
★ If is set to "" or "", the output voltage will change in proportion to the input voltage.
★ Even if the base frequency voltage ( parameter ) is set above the input voltage, the output voltage
will not exceed the input voltage.
★ The rate of voltage to frequency can be adjusted according to the rated motor capacity. For example,
setting to "" or "" prevents the output voltage from increasing, even if the input voltage
changes when operation frequency exceeds the base frequency.
★ When the V/F control mode selection parameter () is set to any number between 2 to 4, the supply
voltage is corrected regardless of the setting of .
To Next Page
Loading...
Need help?
General