Over-current of Discharge Current (ECM)

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An over-current occurred in the discharge current from the Energy Charge Module's (ECM) Capacitor Modules. This suggests an issue with the energy being released, possibly due to a fault in the ECM's discharge circuit, the Resistor Module (A06B-6158-H030), or an external short circuit drawing excessive power.

• The discharge current exceeds its maximum allowed limit.
• Short circuit in the discharge path.
• Faulty discharge components leading to high current draw.
• Overload condition during discharge cycle.

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1. 1

   Immediately stop the machine using the emergency stop button and open the external Main Circuit Contactor (MCC) of the Power supply.

2. 2

   Inspect the wiring of the discharge circuit between the ECM Control Module and the Resistor Module for any short circuits or damage.

3. 3

   Verify the integrity of the Resistor Module (A06B-6158-H030), ensuring its resistance (expected 30 ohm, page 578) is within specification and it shows no signs of overheating.

4. 4

   Check the Capacitor Modules (A06B-6158-H020) for internal faults that could cause uncontrolled discharge.

5. 5

   Ensure that the external load connected to the ECM is not drawing excessive current during discharge operations, which could trigger this alarm.