Toshiba TOSVERT VF-AS3, Instruction Manual

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E6582062 
5. [Fundamental operation] How to use parameters
5-38
4
5
9
5. 3. 4 Selecting motor control method
<Pt: V/f Pattern>
■ Function
This is a parameter to select the motor control method according to the characteristics and
application of the machinery.
■ Parameter setting
■ Selecting a setting value
0: V/f constant
This is a typical control method of an inverter, and the inverter is controlled so that the ratio of the
output frequency (f) and the output voltage (V) becomes almost constant.
It is applied to loads with equipment like conveyors that requires the same torque at low speeds as
at rated speeds.
Memo
• With <AU2: Torque boost macro>, you can set <Pt> of this parameter to "2: Automatic torque
boost", "3: Vector control 1"
、
and "4: Energy savings" and <F400: Offline auto-tuning > to "2"
simultaneously.
Title Parameter name Adjustment range
Default
setting
Pt V/f Pattern 0: V/f constant
1: Variable torque
2: Automatic torque boost
3: Vector control 1
4: Energy savings
5: Dynamic energy savings (for fan and pump)
6: PM motor control
7: V/f 5-point setting
8: -
9: Vector control 2 (speed / torque)
10: PG feedback control
11: PG feedback vector control (speed /
torque)
12: - 0
0.0Hz STOP
15:24
Pt : V/f Pattern
0: V/f constant
1: Variable torque
2: Automatic torque boost
3: Vector control 1
4: Energy savings
Basic parameter