Issue
User wishes to know what messages in the event log mean and how they should be addressed
Product Line
AccuSine PCS+
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.
User wishes to know what messages in the event log mean and how they should be addressed
Product Line
AccuSine PCS+
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. |
