Regeneration Excess Alarm

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This alarm may be generated in the αi PSR when the spindle decelerates, particularly if a regenerative discharge unit with a resistance of 16Ω is used with a spindle motor having a maximum output of 5 kW or more. This indicates that the unit is not effectively dissipating regenerative energy.

• Excessive regenerative energy during deceleration exceeds system limits.
• Regenerative braking torque too high for controller's capacity.
• Parameter settings for regeneration threshold (e.g., P3-01) are too low.
• Faulty regenerative braking resistor system unable to dissipate excess energy.

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Verify the maximum output of the spindle motor. If it is 5 kW or more, proceed to the next step.

2. 2

   Check the resistance of the installed regenerative discharge unit. If it is 16Ω, replace it with an 8Ω regenerative discharge unit.