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oL2
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Drive Overload
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The load is too large.
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Decrease the load.
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The acceleration/deceleration times or cycle times are too short.
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The V/f pattern does not fit the motor qualities.
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Examine the ratios between the V/f pattern frequency and voltage. Decrease the voltage if it is too high compared to the frequency.
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Adjust E1-04 to E1-10 [V/f Pattern Parameters]. Decrease the values set in E1-08 [Mid Point A Voltage] and E1-10 [Minimum Output Voltage]. For motor 2, adjust E3-04 to E3-10.
Note:
If the values set in E1-08 and E1-10 are too low, the overload tolerance will decrease at low speeds.
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The drive capacity is too small.
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Replace the drive with a larger capacity model.
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Overload occurred while running at low speed.
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Decrease the load when running at low speed.
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Replace the drive with a larger capacity model.
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Decrease the value set in C6-02 [Carrier Frequency Selection].
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The torque compensation gain is too large.
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Decrease the value set in C4-01 [Torque Compensation Gain] to make sure that the motor does not stall.
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The speed search-related parameters are set incorrectly.
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Examine the settings for all speed search-related parameters.
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Adjust b3-03 [Speed Search Deceleration Time].
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Set b3-24 = 1 [Speed Search Method Selection = Speed Estimation] after Auto-Tuning.
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Phase loss in the input power supply is causing the output current to change.
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Correct errors with the wiring for main circuit drive input power.
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Make sure that there is no phase loss, and repair problems.
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Overload occurred during overexcitation deceleration.
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Note:
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The drive detects this fault if the electronic thermal protector of the drive started the drive overload protection.
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Do a Fault Reset to clear the fault.
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L5-07 [Fault Reset Enable Select Grp1] disables the Auto Restart function.
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