10. Advanced functions
Example
Rated frequency = 60Hz
Rated RPM = 1740rpm
Number of motor poles= 4
1740 ⋅ 4 |
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f s = 60 − |
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Dwell freq. |
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Start freq. |
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Frequency | Dwell time |
Run |
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10.6Slip compensation
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| Set |
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| Min/Max |
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| H30 |
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| [Motor type select] |
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| 0.2/2.2 |
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| H31 |
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| [Number of motor poles] |
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| 2/12 |
| 4 |
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| H32 |
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| [Rated slip frequency] |
| - |
| 0/10 |
| - |
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| H33 |
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| [Motor rated current] |
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| 1.0/12 |
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| H34 |
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| [Motor No Load Current] |
| - |
| 0.1/12 |
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| A |
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| H36 |
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| [Motor efficiency] |
| - |
| 50/100 |
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| H37 |
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| [Load inertia rate] |
| - |
| 0/2 |
| 0 |
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| H40 |
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| [Control mode select] |
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| 1 |
| 0/3 |
| 0 |
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Set H40 – [Control mode select] to 1 {Slip compensation}.
This function enables the motor to run in constant speed by compensating inherent slip in an induction motor. If motor shaft speed decreases significantly under heavy loads then this value should be increased.
H30 : Set the motor type connected to the inverter.
H30 | [Motor type select] | 0.2 | 0.2kW |
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| 0.4 | 0.4kW |
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| 0.75 | 0.75kW |
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| 1.5 | 1.5kW |
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| 2.2 | 2.2kW |
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H31 : Enter the pole number on the Motor nameplate.
