Specifications

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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