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A: Cause analysis:
dEu is a speed deviation fault. When the speed deviation exceeds the set value of P11.13 and the maintenance time exceeds the set value of P11.14, GD300L will trip at dEu and stop running.
Solutions:
1. Check whether the brake is opened
2. Check whether the motor is bocked, and whether the auto-tune of synchronous motor is accurate
3. Check whether the load is too heavy
4. Increase acceleration speed or increase detection time P11.14
5. If dEu happened during open loop control, set P11.14 to disable this function.
6. Inaccurate magnetic pole angle will also cause dEu fault, re-perform motor autotune.
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