Toshiba TOSVERT VF-AS3, Instruction Manual

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E6582062 
5. [Fundamental operation] How to use parameters
5-48
4
5
9
2: Vector control 1 + offline auto- tuning
This is applied to load transporting machinery and elevators that require high torque and machine
tools that require high precision.
High-torque and high-precision stable operation is realized in the speed range from startup to base
frequency.
• When <AU2: Torque boost macro> is set to "2", <Pt: V/f Pattern> is set to "3" automatically.
• The same characteristics can be obtained by setting <Pt> to "3: Vector control 1" and <F400:
Offline auto-tuning> to "2: Auto-tuning at run command (0 after execution)". For details, refer to [6.
23. 1].
3: Energy s offline auto-tuning
This is applied to machinery such as fans and pumps that requires energy saving.
Energy can be saved in all speed ranges by detecting load current and flowing the optimum current
that fits the load.
• When <AU2: Torque boost macro> is set to "3", <Pt: V/f Pattern> is set to "4" automatically.
• The same characteristics can be obtained by setting <Pt> to "4: Energy savings" and <F400:
Offline auto-tuning> to "2: Auto-tuning at run command (0 after execution)". For details, refer to [6.
23. 1].
■ If vector control cannot be set
First read the precautions about vector control in [5. 3. 4].
If the desired torque cannot be obtained, refer to [6. 23], [6. 25].
If auto-tuning error "Etn1" appears, refer to [6. 23. 1], [6. 23. 2].
■ Parameters set simultaneously with <AU2: Torque boost macro>
<AU2: Torque boost macro> is a parameter to set <Pt: V/f Pattern> and <F400: Offline auto-tuning>
simultaneously.
Therefore, if <AU2> is changed, the following relevant parameters are changed automatically.
Automatically set parameters
<AU2> <Pt> <F400>
0 0 is displayed after resetting it - Check the setting value of <Pt>. - -
1 Automatic torque boost + offline
auto-tuning 2 Automatic torque boost 2 Execute
(0 after execution)
2 Vector c offline auto-tuning 3 Vector control 1 2 Execute
(0 after execution)
3 Energy s offline auto-
tuning 4 Energy savings 2 Execute
(0 after execution)
Memo
• For details of offline auto-tuning, refer to [6. 23. 1].