Chapter 6: Programming Features
Firmware – S2011 and S3012
Revision: 1 (9/98)
37
© Saftronics, Inc.
6.2.1.
Preset V/f Pattern
The following shows the preset V/f patterns. (The voltages are for 200V class. For 400V class, the value is twice that of
200V class.)
Table 13 Preset V/f Pattern (n010 = 0 to E)
Specifications
n010
V/f Pattern *1
Specifications
n010
V/f Patterns *1
Low
Starting
Torque
8
50 Hz
0
50 Hz
High
Starting
Torque
9
60 Hz
Saturation
1
F
Low
Starting
Torque
A
60 Hz
50 Hz
Saturation
2
High Starting Torque *2
60 Hz
High
Starting
Torque
B
General-Purpose
72 Hz
3
90 Hz
C
Variable
Torque 1
4
50 Hz
Variable
Torque 2
5
120 Hz
D
Variable
Torque 3
6
Variable Torque Characteristics
60 Hz
Variable
Torque 4
7
High Speed Operation
180 Hz
E
∗
1 Consider the following items as the conditions for selecting a V/f pattern. They must be suitable for:
•
The voltage and frequency characteristics of motor.
•
The maximum rotation speed of motor.
∗
2 Select high starting torque only in the following conditions. Normally, this selection is not required.
•
The wiring distance is long (150 meters (492 feet) and above).
•
Voltage drop at startup is large.
•
AC Reactor is inserted in the input or output of the Inverter.
•
A motor smaller than the nominal output of the Inverter is used.
∗
3 Voltages when the models of 200V, 55kW or above, or 400V, 55kW or above are selected.
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