Omron VARISPEED G7 -, Instruction Manual

Page: 304 / 417

Individual Functions
6-
109
* 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 constants 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 300 kW V/f pattern
The characteristics diagrams for each are shown in the following pages.
High Startup
Torque (See
Note)
*
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.)
• A large torque is required at startup (ele-
vator loads, etc.)
• An AC reactor is inserted in the Inverter
input or output.
• You are operating a motor that is less
than optimum.
8
50 Hz specifications, medium startup
torque
9 50 Hz specifications, large startup torque
A
60 Hz specifications, medium startup
torque
B 60 Hz specifications, large startup torque
Fixed Output
Operation This pattern is used for frequencies of 60
Hz or higher. A fixed voltage is applied.
C
90 Hz specifications, voltage saturation at
60 Hz
D
120 Hz specifications, voltage saturation at
60 Hz
E
180 Hz specifications, voltage saturation at
60 Hz
Characteristic Application
Set
Value
Specifications