YASKAWA GPD-506V

5-60
5.28 V/f PATTERN
A. n010 : V/f Pattern
When parameter n010 is set to "User Defined V/f" ("0"), the V/f pattern can be tailored
to suit a specific application and load characteristics by adjusting parameters n011 to
n017 (see the V/f characteristics figure on the following page). The values set into
n011 to n017 from the factory should be adequate for most variable torque
applications (60 Hz rated motors only).
When parameter n010 is set to "60 Hz Preset" ("1"), the V/f pattern is fixed. This fixed
pattern is good for most constant torque applications (60 Hz rated motor only).
If motor rated voltage is other than 230Vac (e.g. 208Vac, 380Vac, 460Vac or 600Vac), set
parameter n010= 0 and adjust n012, n015, and n017 according to footnote 5 below.
5 0 Normal VT 0 50.0 230.0 50.0 25.0 40.2 1.3 9.2
5 0 High
2
VT 0 50.0 230.0 50.0 25.0 57.5 1.3 11.5
6 0 Normal VT 0 60.0 230.0 60.0 30.0 40.2 1.5 9.2
6 0 High
2
VT 0 60.0
3
230.0
3
60.0
3
30.0
3
57.5
3
1.5
3
11.5
3
5 0 Normal CT 0 50.0 230.0 50.0 3.0 17.2 1.5 11.5
5 0 Medium CT 0 50.0 230.0 50.0 2.5 23.0 1.3 13.8
5 0 High
2
CT 0 50.0 230.0 50.0 2.5 28.7 1.3 16.1
6 0 Normal CT 1
4
60.0
4
230.0
4
60.0
4
3.0
4
17.2
4
1.5
4
11.5
4
6 0 Medium CT 0 60.0 230.0 60.0 3.0 20.7 1.5 13.8
6 0 High
2
CT 0 60.0 230.0 60.0 3.0 28.7 1.5 23.0
7 2 Normal CT 0 72.0 230.0 60.0 3.0 17.2 1.5 11.5
9 0 Normal CT 0 90.0 230.0 60.0 3.0 17.2 1.5 11.5
1 2 0 Normal CT 0 120.0 230.0 60.0 3.0 17.2 1.5 11.5
1 8 0 Normal CT 0 180.0 230.0 60.0 3.0 17.2 1.5 11.5
NOTES:
1
VT = Variable Torque, typically used for blowers, centrifugal pumps, and fans.
CT = Constant Torque, most other applications. Consult Yaskawa for further assistance.
The following conditions must be considered when selecting a V/f pattern:
- Pattern matches the voltage-frequency characteristics of the motor.
- Maximum motor speed.
2
V/f pattern for high starting torque should be selected for:
- Long wiring distance.
- Large voltage drop at start
- AC reactor connected to drive input or output.
- Use of motor rated below drive max. output.
3
These are the factory settings when n010 = "User defined V/f" ("0").
4
These settings cannot be changed when n010 = "60 Hz Preset" ("1").
5
Voltages shown are for 230V motors; for other motor voltages, multiply all voltage (V) values by
(Vmtr/230); i.e., for 460V input, multiply by 460/230 = 2; for 600V input, multiply by
600/230 = 2.6087.
Max. Starting Load n010 n011 n012 n013 n014 n015 n016 n017
Freq. Torque Type
1
(Hz) (V)
5
(Hz) (Hz) (V)
5
(Hz) (V)
5
Table 5-4. Recommended V/f Patterns
LED Setting LCD Setting Description
0 User Defined V/f "Custom" pattern
1* 60 Hz Preset * "Preset" pattern