HW control of braking resistor

Was bedeutet E2802 ?

This warning indicates an issue related to the hardware control of the external braking resistor connected to the IndraDrive MPx02. This could imply a fault in the braking resistor circuit, the drive's internal brake chopper, or its control, preventing effective dissipation of regenerative energy.

• Overload or overheating of the braking resistor, causing its thermal protection to trip.
• Short circuit or open circuit in the braking resistor wiring.
• Internal fault of the drive's brake chopper circuit.
• Incorrect sizing or parameterization of the braking resistor in the drive configuration.
• Failure of the thermal switch on the resistor (if equipped) to provide accurate feedback.

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1. 1

   Inspect the braking resistor and its wiring for any signs of damage, loose connections, or overheating. Allow it to cool if hot.

2. 2

   Measure the resistance of the braking resistor to confirm it matches the specified value and is not open-circuited or short-circuited.

3. 3

   Check if the braking resistor has an integrated thermal switch and verify its continuity; if open, the resistor is likely overheated.

4. 4

   Verify that the braking resistor's power rating and resistance are correctly configured in the IndraDrive MPx02 parameters (e.g., P-0-0115, Braking resistor continuous power).

5. 5

   If the resistor and wiring are confirmed good, but the error persists, the issue might lie with the drive's internal brake chopper circuit. Contact Indramat service.