Figure 5-2. Inverter State Diagram - Advanced Energy AE 600 User Manual

Figure 5‑2. Inverter state diagram
• Initialize: The inverter enters this state after a power cycle. Variables and
devices are initialized and I/O ports set. When initialization is complete, the
inverter enters the sleep state.
• Disabled: The inverter enters this state when the front-panel switch is in the
OFF position or when a disable command is received over the Modbus
connection. If a fault condition occurs, the inverter switches to the fault state.
When the fault is cleared and the condition no longer exists, the inverter returns
to the disabled state. The inverter displays a message on the screen indicating
the inverter is disabled. When an enable command is received or the front-panel
switch is changed to the ON position, the inverter switches to the sleep state.
The inverter will also enter the disabled state when the remote disable input
feature is applied.
• Fault: The inverter enters this state when any fault condition occurs. The
inverter can enter this state from any other state except initialize. Unless the
fault is latching, the inverter clears the fault when the fault condition subsides.
The inverter displays the fault codes and messages indicating the current fault
conditions. If the fault is latching, the inverter switches to the latched fault state.
The inverter enters this state when a latching fault condition occurs. The
inverter displays fault codes and messages indicating the current fault
conditions. When the fault is cleared, the inverter switches to the sleep state.
Descriptions of the inverter faults are included in the Troubleshooting chapter.
570-1001791-05A
Disabled
Fault
Power
Track
(auto
mode)
Operation
Advanced Energy® AE 500 Inverter
Initialize
Sleep
Startup
Delay
DC
Precharge
AC
Precharge
Idle
Cool Down
5‑3