E6580757
1) Constant torque characteristics (general method of use)
Setting of V/F control mode selection to (V/F constant)
This is applied to loads with equipment like conveyors and cranes that require the same torque at low speeds as at rated speeds.
Base frequency voltage |
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Output voltage (%) |
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Base frequency | Output frequency (Hz) |
To increase the torque further, increase the setting value of the manual torque boost .
⇒ For more details, see 5.13.
2) Setting for fans and pumps |
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| Setting of V/F control selection | to (variable torque) |
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| This is appropriate for load characteristics of such things as fans, pumps and blowers in which the torque in | |||
| relation to load rotation speed is proportional to its square. |
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| Base frequency voltage |
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| Output voltage (%) |
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| Base frequency | Output frequency (Hz) |