Toshiba TOSVERT VF-AS3 Instruction Manual page 204

5. 3. 4
<Pt: V/f Pattern>
Basic parameter
■ Function
This is a parameter to select the motor control method according to the characteristics and
application of the machinery.
4
Memo
5
■ Parameter setting
Title
Pt
9
■ 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.
5. [Fundamental operation] How to use parameters
Selecting motor control method
• 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.
Parameter name
V/f Pattern
Pt : V/f Pattern
0: V/f constant
1: Variable torque
2: Automatic torque boost
3: Vector control 1
4: Energy savings
Adjustment range
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: -
5-38
E6582062
STOP 0.0Hz
15:24
Default
setting
0