Inverter Internal Cooling Fan Stop (SVM)

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This alarm indicates that the internal cooling fan within the Servo Amplifier Module (SVM) has stopped operating. The fan is critical for dissipating heat generated by the inverter's power components. A stopped fan will lead to rapid overheating of the SVM, potentially causing thermal shutdown or damage.

• Foreign material obstructing the fan blades.
• The faceplate (control printed-circuit board) is not fully seated.
• The fan connector is not attached correctly or is loose.
• The internal cooling fan itself has failed.

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1. 1

   Check for any foreign material (e.g., dust, debris) in the fan mechanism.

2. 2

   Be sure to push the faceplate (control printed-circuit board) as far as it will go into its slot to ensure proper contact.

3. 3

   Check that the fan connector is securely attached to the SVM printed-circuit board.

4. 4

   Replace the internal cooling fan if it is confirmed to be defective.

5. 5

   Replace the SVM if the fan has been replaced and the alarm persists.