4-207
energy savings frequency activation function. Refer to figure 4.4.88 for more information.
Note: Only use manual energy savings functions in combination with light loads.
Manual energy saving gain (11-12) determines the output voltage of the inverter when manual energy
savings is enabled. Output voltage is percentage gain times the V/F voltage.
Manual energy saving control uses the voltage recovery time (07-23) to change the output voltage
Figure 4.4.79 Manual energy saving operation
11- 19
Automatic Energy Saving Function
Range
【
0】: Automatic Energy Saving is Disabled.
【1】: Automatic Energy Saving is Enabled.
11- 20
Filter Time of Automatic Energy Saving
Range
【
0~200】msec
11- 21
Voltage Upper Limit of Energy Saving Tuning
Range
【
0~100】%
11- 22
Adjustment Time of Automatic Energy Saving
Range
【
0~5000】msec
11- 23
Detection Level of Automatic Energy Saving
Range
【
0~100】%
11- 24
Coefficient of Automatic Energy Saving
Range
【
0.00~655.34】
In the V/F control mode the automatic energy saving (AES) function automatically adjusts the output
voltage and reduces the output current of the inverter to optimize energy savings based on the load. The
output power changes proportional to the motor load. Energy savings is minimal when the load exceeds
70% of the output power and savings become greater when the load decreases.
AES function is suitable for the load is stable, just like fan or windmill. If the load is variable, please do not
use this function to avoid the output torque is not enough.
The parameter of automatic energy saving function has been set at the factory before shipment. In general,
it is no need to adjust. If the motor characteristic has significant difference from the TECO standard, please
refer to the following commands for adjusting parameters:
Enable Automatic Energy Savings Function
(1) To enable automatic energy saving function set 11-19 to 1.
(2) Filter time of automatic energy saving (11-20)
(3) Commissioning parameter of energy saving (11-21 to 11-22)
In AES mode, the optimum voltage value is calculated based on the load power requirement but is also
affected by motor temperature and motor characteristic.
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