Over-current of Charge Current (ECM)
Fanuc · Macro B CNC Programming
What does 3 mean?
An over-current occurred in the charge current to the Energy Charge Module's (ECM) Capacitor Modules. This indicates a problem in the charging circuit, potentially due to a fault in the ECM's Control Module (A06B-6158-H010), the Capacitor Module itself, or an unstable power supply.
Repair Steps
- 1
Immediately stop the machine using the emergency stop button and open the external Main Circuit Contactor (MCC) of the Power supply.
- 2
Inspect the wiring of the charge circuit between the ECM Control Module and the Capacitor Modules for any short circuits or damage.
- 3
Verify the integrity of the Capacitor Modules (A06B-6158-H020) for any signs of physical damage or internal short circuiting.
- 4
Check the ECM Control Module (A06B-6158-H010) and DC Reactor (A06B-6158-H040) for any faults affecting the charging current regulation.
- 5
Measure the input power supply to the ECM to ensure it is stable and within specified limits during charging operations.