Omron I537-E2-01 User Manual page 207

To select one of the existing patterns, refer to the following table.
Characteristic
This pattern is used in general applications.
Parameter Torque Used when the load torque is fixed, regard-
Characteristic less of rotation speed, for linear transport
systems.
This pattern is used for loads with torque
Variable torque
proportional to two or three times the rota-
characteristic
tion speed, such as fans and pumps.
Select the high startup torque V/f pattern
only in the following cases.
• The wiring distance between Inverter and
motor is large (approx. 150 m min.)
High Startup
• A large torque is required at startup (ele-
Torque (See
vator loads, etc.)
*
Note)
• An AC reactor is inserted in the Inverter
input or output.
• You are operating a motor that is less
than optimum.
Fixed Output This pattern is used for frequencies of 60
Operation Hz or higher. A fixed voltage is applied.
* The torque is protected by the fully automatic torque boost function, so normally there is no need to use this pattern.
When you select these patterns, the values of parameters E1-04 to E1-10 are changed automatically. There are
three types of values for E1-04 to E1-10, depending on the Inverter capacity.
0.4 to 1.5 kW V/f pattern
•
• 2.2 to 45 kW V/f pattern
• 55 to 160 kW V/f pattern
The characteristics diagrams for each are shown in the following pages.
Set
Application
Value
0 (F)
Individual Functions
Specifications
50 Hz specifications
1 60 Hz specifications
60 Hz specifications, voltage saturation at
2
50 Hz
72 Hz specifications, voltage saturation at
3
60 Hz
×
4
50 Hz specifications, 3 decrement
×
5 50 Hz specifications, 2 decrement
×
6 60 Hz specifications, 3 decrement
×
7 60 Hz specifications, 2 decrement
50 Hz specifications, medium startup
8
torque
9 50 Hz specifications, large startup torque
60 Hz specifications, medium startup
A
torque
B 60 Hz specifications, large startup torque
90 Hz specifications, voltage saturation at
C
60 Hz
120 Hz specifications, voltage saturation at
D
60 Hz
75
6-