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PARAMETERS
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4.2.26 Intelligent mode selection (Pr. 60)
Pr. 60 "intelligent mode selection"
The inverter automatically sets appropriate parameters for operation.
•
If you do not set the acceleration and deceleration times and V/F pattern, you can run the inverter as if
appropriate values had been set in the corresponding parameters. This operation mode is useful to start
operation immediately without making fine parameter settings.
•
If the intelligent operation mode has been selected, entry of the jog signal or RT (second function selection)
signal during an inverter stop starts ordinary operation, with priority given to jog operation or second
function selection. After a start in the intelligent operation mode, neither the JOG signal nor the RT signal is
accepted.
Parameter
Number
Factory
Setting
Setting Range
60 0 0, 3, 4, 9
<Setting>
Pr. 60
Setting
Operation Mode Description
Automatically Set
Parameters
0
Ordinary operation
mode
3
Optimum
acceleration/
deceleration mode
(Note 2, 3)
Optimum operation can be carried out by fully utilizing the inverter
capabilities in the continuous rating range.
Self-learning automatically sets the corresponding parameters so that the
average current during acceleration/deceleration is equal to the rated current.
Appropriate for applications where the load will not vary by a large amount.
Pr. 0, Pr. 7, Pr. 8
4
Energy-saving
mode (Note 4)
Tunes the output voltage online to minimize the inverter output power during
constant-speed operation.
Appropriate for energy-saving applications such as fan and pump operation.
Output voltage
9
Optimum excitation
control mode
(Note 4)
Optimizes the exciting current as an energy-saving technique to maximize
the motor efficiency. Appropriate for further energy-saving applications such
as machines which are large in J and long in acceleration/deceleration time.
Output voltage
Note: 1. When more accurate control is required for your application, set the other parameters as
appropriate.
2. Because of the learning system, this control is not valid at the first time in the optimum
acceleration/deceleration mode (operation starts from the second cycle). Also, this mode is only
valid for frequency setting of 30.01Hz or more.
3. If an overvoltage (OV3) trip has occurred during operation in the optimum
acceleration/deceleration mode (setting "3"), re-set Pr. 8 "deceleration time" to a larger value and
restart operation in this mode.
4. When "4" (energy-saving mode) or "9" (optimum excitation control mode) has been set to
decelerate the motor to a stop, the deceleration time may be longer than the preset value. Also,
overvoltage is more likely to occur in this mode when compared to the constant-torque load
characteristics, therefore set the deceleration time to a longer value.
Pr. 0 "torque boost"
Pr. 7 "acceleration time"
Pr. 8 "deceleration time"
Pr. 13 "starting frequency"
Pr. 19 "base frequency voltage"
Related parameters
4