Status and Events

A Status is a mode of operation of the system in any possible situation. An Event is a condition which must be met to force a status change.

Depending on the events or different situations which may occur, the system switches through different working status which are reflected in:

Event Log menu as Status change events
Status menu
Home menu

The following table provides the list of possible working status of the system. The system compensates only when the static bypass is off and the inverter module is on.

Status	Description	Status of internal modules
OFF	The system is stopped manually.	Static bypass ON Rectifier module OFF Inverter module OFF
OFF	The system is in Mains failure or Minimum Bus Voltage status. In this case, the system will be in OFF status until the conditions are removed.	Static bypass ON Rectifier module OFF Inverter module OFF
Pre-charging	Transitory status until DC-link voltage reaches a value. The precharge contactor is closed.	Static bypass ON Rectifier module OFF Inverter module OFF
Pre-ON	Transitory status until the system checks it can start. The precharge contactor is open and the main contactor is closed.	Static bypass ON Rectifier module ON Inverter module OFF
ON	The system is working in normal operation mode.	Static bypass OFF Rectifier module ON Inverter module ON
Pre-OFF	Transitory status between any status and OFF status. The main contactor is open.	Static bypass ON Rectifier module OFF Inverter module OFF
Overload	The system has detected an Overload event. Once the condition is removed, the system switches to ON status.	Static bypass ON Rectifier module ON Inverter module OFF
Instantaneous voltage failure	The system has detected an Instantaneous voltage failure event. Once the condition is removed, the system switches to ON status.	Static bypass ON Rectifier module ON Inverter module OFF
Mains failure	The system has detected a Mains voltage failure and/or a PLL failure event. Once the condition is removed, the system will follow the start-up sequence automatically.	Static bypass ON Rectifier module OFF Inverter module OFF
Minimum bus voltage	The system has detected a Minimum bus voltage event. Once the condition is removed, the system will follow the start-up sequence automatically.	Static bypass ON Rectifier module OFF Inverter module OFF
Maximum sag	The system has detected an Output voltage integrator limitation event. Once the condition is removed, the system switches to ON status.	Static bypass ON Rectifier module ON Inverter module OFF
Driver alarm	The system has detected a Driver alarm event. The system will autoreset. If this is repetitive, the system switches to the Driver failure status.	Static bypass ON Rectifier module OFF Inverter module OFF
Maximum bus voltage alarm	The system has detected a Maximum bus voltage event. The system will autoreset. If this is repetitive, the system will change to Maximum bus voltage failure status.	Static bypass ON Rectifier module ON Inverter module OFF
Pre-charging failure	When DC-link voltage does not reach a value in the start-up sequence. This status must be manually reset.	Static bypass ON Rectifier module OFF Inverter module OFF
Capacitor voltage failure	The system has detected a Maximum capacitor voltage event. This status must be manually reset.	Static bypass ON Rectifier module OFF Inverter module OFF
Maximum bus voltage failure	The system has detected a Maximum bus voltage event repetitively, or once being on Pre-ON status. This status must be manually reset.	Static bypass ON Rectifier module OFF Inverter module OFF
Thermostat failure	The system has detected a Thermostat failure event. This status must be manually reset.	Static bypass ON Rectifier module OFF Inverter module OFF
Driver failure	The system has detected a Driver failure event. This status must be manually reset.	Static bypass ON Rectifier module OFF Inverter module OFF
Temperature failure	The system has detected a High temperature alarm event. This status must be manually reset.	Static bypass ON Rectifier module OFF Inverter module OFF
Fuse failure/AC capacitor failure	Transitory status between any status (except OFF status) and Fuse failure or AC capacitor failure status.	Static bypass ON Rectifier module OFF Inverter module OFF
Fuse failure	Input fuse blown. This status must be manually reset.	Static bypass ON Rectifier module OFF Inverter module OFF
AC capacitor failure	Any AC power capacitor of rectifier/inverter module has lost its capacity. This status must be manually reset.	Static bypass ON Rectifier module OFF Inverter module OFF

The events occurred in the PowerLogic™ DVR system are recorded in Events or Event Log menus. More information about each possible events that generates the fault in the system is provided in the section Troubleshooting.