I. Fault Identification and Preliminary Troubleshooting
1. Status Check
Observe the indicator lights on the luminaire: Main power (green), Charging (red), Fault (yellow) status.
Test the emergency start function: It should automatically switch to battery power within 5 seconds after power failure.
2. Common Fault Types
Circuit short circuit: Locate the fault point using the segmented plug method (e.g., disconnect and test at 1/2 point).
Power supply abnormality: Check the fuse, battery voltage (80%-120% of rated value), and overcharge protection.
II. Reporting and On-site Handling
1. Reporting Process
Record the address of the faulty luminaire (locate it through the controller or floor plan).
Contact the maintenance unit and provide the fault code and description of the phenomenon (e.g., "Output 2 fault").
2. On-site Repair Steps
Central power supply fault:
Check if the bus terminals are loose or short-circuited.
Test the circuit in sections and replace the faulty wiring (with wires of the same specifications).
Luminaire fault:
Replace the damaged light source or module and test the self-reset function.
III. Acceptance and Recording
1. Function Verification
Reset the controller and confirm that the luminaire is restored to normal and there are no alarms.
Test the continuous emergency lighting time (≥90 minutes) and protection level (IP65/IP67).
2. Document Archiving
Fill in the maintenance record, including the cause of the fault, replaced parts, and test data.
