Troubleshooting AccuSine Event Log Messages
Issue
User wishes to know what messages in the event log mean and how they should be addressed
Product Line
AccuSine PCS+
AccuSine EVC+
AccuSine PCSn
Environment
Event Log
Resolution
Please see the table below for a list of events one may see in the event log and the required action(s) to address.
| Event | Explanation | Action |
| AC Line Not Qualified | Frequency Not Qualified | Verify Line Frequency is within ±3Hz. |
| Three Phase Loss | Verify AC Line is present. | |
| Single Phase Loss | Verify all three line voltages are present. | |
| Over Voltage | Verify Line voltage is within +10%. | |
| Voltage Imbalance | Verify voltage imbalance is less than 8%. | |
| Fast Under Voltage | Verify voltage is within 50% of nominal (1/4 cycle) | |
| Fast Over Voltage | Verify voltage is within +10% of nominal (1/4 cycle) | |
| Auto Detection Out of Range | Unit was unable to Auto Detect voltage or frequency | Disable Auto Detect. Manually enter nominal voltage and frequency of the electrical system. |
| Low Order Harmonics OFF [AHF type only] | 5th and/or 7th order harmonic disabled | Typically caused by harmonic loads without the minimum 3% impedance or un-isolated power factor correction capacitors on the load side of the main CTs |
| Fan Failure Detected | Power section fan inoperable | Call your local service center. |
| Filter Trip | Inverter Filter inoperable | Call your local service center. |
| Gate Drive Trip | Power supply issue on Gate Driver | Call your local service center. |
| HMI Communication Loss | HMI communication to Control Board loss | Verify Proper connection of HMI RJ45 Com jack. Call your local service center. |
| IGBT Trip | IGBT issue detected | Call your local service center. |
| MOV Requires Service | MOV issue detected | Call your local service center. |
| Over Current Condition Detected | Call your local service center. | |
| Over Temperature | Over Temperature detected | Verify air temperatures to the air intake of the unit are within specification. Verify intake and exhaust air vents are not obstructed. |
| Parallel Power Wiring Mismatch | L1, L2 and L3 are not powered by the same phase for each parallel unit. | Ensure L1, L2 and L3 of all parallel units are powered by the same phase. |
| Protection Firmware Trip | Firmware issue detected | Call your local service center |
| Power Supply Out of Range | Power Supply issue detected | Call your local service center. |
| Current Sensor Inoperable | Internal Current Sensor issue detected | Call your local service center. |
| Transformer Over Temperature | Transformer Over Temperature detected (600 and 690 volt units only) | Verify air temperatures to the air intake of the unit are within specification. Verify intake and exhaust air vents are not obstructed. |
| High Frequency Voltage Distortion Condition | Excessive inverter switching frequency detected on line voltage | Call your local service center. |
Released for: Schneider Electric Canada
