SJ200 Inverter
Overload Restriction
If the inverter’s output current exceeds a preset current level you specify during acceleration or constant speed, the overload restriction feature automatically reduces the output frequency to restrict the overload. This feature does not generate an alarm or trip event. You can instruct the inverter to apply overload restriction only during constant speed, thus allowing higher currents for acceleration. Or, you may use the same threshold for both acceleration and constant speed.
When the inverter detects an overload, it must decelerate the motor to reduce the current until it is less than the threshold.
You can choose the rate of deceleration that the inverter uses to lower the output current.
Motor
Current
Restriction area
B022
0
t
Output
frequency
0 |
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| B023 |
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| “B” Function | Run |
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Func. | Name / | Description | Mode |
| Units |
| Configuring | ||||
Edit |
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Code | SRW Display | (EU) | (USA) |
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B021 | Overload restriction | Select the operating mode | ✘ | 01 | 01 |
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| operation mode | during overload conditions, |
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| three options, option codes: |
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| OL Mode | ON |
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| 00... Disabled |
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| 01... Enabled for acceleration |
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| and constant speed |
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| 02... Enabled for constant |
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| speed only |
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B022 | Overload restriction | Sets the level for overload | ✘ | Rated current x |
| A |
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| setting |
| restriction, between 20% and |
| 1.5 |
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| 150% of the rated current of |
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| OL LVL | 002.40A |
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| the inverter, setting resolution |
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| is 1% of rated current |
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B023 | Deceleration rate at | Sets the deceleration rate when | ✘ | 1.0 | 30.0 |
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| overload restriction | inverter detects overload, range |
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| is 0.1 to 30.0, resolution is 0.1. |
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| OL Cnst | 0001.0s |
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