Instruction manual

• Full-range automatic torque boost (when V/f mode is selected; n002=0)

Motor torque requirement changes according to load conditions. Full-

range automatic torque boost adjusts voltage of V/f pattern according to

the requirement. The VS-606V7 automatically adjusts the voltage during

constant-speed operation as well as during acceleration.

The required torque is calculated by the inverter.

This ensures tripless operation and energy-saving effects.

Operation

Normally, no adjustment is necessary for torque compensation gain (n103

factory setting : 1.0). When the wiring distance between the inverter and the

motor is long, or when the motor generates vibration, change the automatic

torque boost gain. In these cases, set the V/f pattern (n011 to n017).

Adjustment of torque compensation time constant (n104) and torque

compensation iron loss (n105) are normally not required.

Adjust torque compensation time constant under the following conditions:

• Increase the setting when the motor generates vibration.

• Reduce the setting when response is low.

Output voltage Torque compensation gain (n103)

Required torque





f (FREQUENCY)

Required torque Increase voltage

(VOLTAGE)