Torque boost macro

Function

This parameter is used to set V/f Pattern of the inverter and offline auto-tuning of motor parameters
simultaneously for machinery that requires torque boost and energy saving.

Important:
• Before setting [AU2: Torque boost macro], look at the motor name plate and be sure to set the following parameters.
- [vL: Base frequency 1] (Rated frequency)
- [vLv: Base frequency voltage 1] (Rated voltage)
- [F405: Motor rated capacity]
- [F415: Motor rated current]
- [F417: Motor rated speed]
Set other motor parameters as necessary.

Selection of setting value
1: Automatic torque boost + offline auto-tuning
This is applied to loads that require torque.
The load current in the speed range from startup to base frequency is detected and the output voltage (torque boost) from the inverter is automatically adjusted. This gives steady torque for stable operation.
• When [AU2: Torque boost macro] is set to "1", [Pt: V/f Pattern] is set to "2" automatically.
• The same characteristics can be obtained by setting [Pt] to "2: Automatic torque boost" and
[F400: Offline auto-tuning]
2: Vector control 1 + offline auto- tuning
This is applied to load transporting machinery and elevators that require high torque and machine tools that require high precision. High-torque and high-precision stable operation is realized in the speed range from startup to base frequency.
• When [AU2: Torque boost macro] is set to "2", [Pt: V/f Pattern] is set to "3" automatically.
• The same characteristics can be obtained by setting [Pt] to "3: Vector control 1" and [F400: Offline auto-tuning] to "2: Auto-tuning at run command (0 after execution)".
3: Energy savings + offline auto-tuning
This is applied to machinery such as fans and pumps that requires energy saving. Energy can be saved in all speed ranges by detecting load current and flowing the optimum current that fits the load.
• When [AU2: Torque boost macro] is set to "3", [Pt: V/f Pattern] is set to "4" automatically.
• The same characteristics can be obtained by setting [Pt] to "4: Energy savings" and [F400: Offline auto-tuning] to "2: Auto-tuning at run command (0 after execution)".
Parameters set simultaneously with [AU2: Torque boost macro]
[AU2: Torque boost macro] is a parameter to set [Pt: V/f Pattern] and [F400: Offline auto-tuning] simultaneously.

Please reference latest AS3 Instruction Manual more details or latest information.

AS3 fault codes, descriptions, symptoms and suggested remedies can be found in the below links. Each fault code can also be linked to directly from the AS3 by accessing the QR code on a mobile device while the AS3 is currently experiencing the fault.