Toshiba TOSVERT VF-AS3 Instruction Manual page 207

* If an auto-tuning error occurs, set motor parameters individually by referring to [6. 23. 1]
"■Setting method 4: Manually setting motor parameter".
3) Manual setting
Set each motor constant.
For details, refer to [6. 23. 1].
4: Energy savings
Energy can be saved in all speed ranges by detecting load current and flowing the optimum current
that fits the load.
When <Pt> is "4", setting of motor parameters is required.
When the motor you are using is a 4P Toshiba premium efficiency motor which has the same capac-
ity as the inverter, there is basically no need to set the parameters.
In other cases, look at the motor name plate and 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>
Three parameter setting methods are provided.
1) Setting with <AU2: Torque boost macro>
Set <AU2: Torque boost macro> to "3". Set <Pt> to "4: Energy savings" and <F400: Offline
auto-tuning> to "2" simultaneously.
For details, refer to [5. 3. 5].
2) Setting with <F400: Offline auto-tuning>
Set <F400: Offline auto-tuning> to "5".
For details, refer to [6. 23. 1].
* If an auto-tuning error occurs, set motor parameters individually by referring to [6. 23. 1]
"■Setting method 4: Manually setting motor parameter".
3) Manual setting
Set each motor constant.
For details, refer to [6. 23. 1].
5: Dynamic energy savings (for fan and pump)
Energy can be saved in all speed ranges by detecting load current and flowing the optimum current
that fits the load. Even in a low-speed range with especially decreased efficiency, more substantial
energy savings than those provided when <Pt> is "4: Energy savings" can be achieved by
controlling to maximize the efficiency.
The inverter cannot respond to rapid load fluctuations, so this setting should be used only for loads,
such as fans and pumps that have less load fluctuations.
When <Pt> is "5", setting of motor parameters is required.
When the motor you are using is a 4P Toshiba premium efficiency motor which has the same capac-
ity as the inverter, there is basically no need to set the parameters.
In other cases, look at the motor name plate and set the following parameters.
• <vL: Base frequency 1> (Rated frequency)
• <vLv: Base frequency voltage 1> (Rated voltage)
5-41
5. [Fundamental operation] How to use parameters
E6582062
3
4
5
9