AEG PV.500-MH Benutzerhandbuch

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Protect PV.500_MH Operating Instructions 
 
80000043212 BAL 
27 of 68 
The set monitoring values are regularly checked. 
In this status, no power is fed into the mains. 
Possible change of status: 
If the DC voltage rises above a certain value for a certain time and 
the mains voltage and mains frequency are within a certain range, 
the unit switches to the "Operation" status. A start-up attempt is 
made, which involves switching on the inverter stack. If the DC 
voltage collapses too dramatically during this start-up attempt, the 
inverter stack is switched off again and there is a delay before at-
tempting to start up again. The equipment will not switch to the 
"Operation" status until any dip in the DC voltage that occurs dur-
ing a start-up attempt is within acceptable limits. 
If the DC voltage falls below a certain value for a certain time, the 
equipment switches to the "Night" status. 
If a deactivating or self-acknowledging fault is triggered, the 
equipment switches to the "Fault" status. 
The status can be switched from "Waiting for feed conditions" to 
"OFF" using the "Off" control command. 
5.1.3  The "Operation" Status 
The equipment has met all conditions for operation and no deac-
tivating or self-acknowledging faults are present.  
The set monitoring values are regularly checked. 
In this status, power is fed into the mains and inverter output con-
tactor K7 is closed. 
Possible change of status: 
If the generated power falls below a certain value for a certain 
time, the operating conditions are no longer met. The equipment 
then switches to the "Waiting" status. 
If a deactivating or self-acknowledging fault is triggered, the 
equipment switches to the "Fault" status. 
The status can be switched from "Operation" to "OFF" using the 
"Off" control command. 
5.1.4  The "Waiting" Status 
If the power fed in falls below a certain value when the equipment 
is in "Operation", it switches to the "Waiting" status. Although the 
incoming power is low, the DC voltage of the PV cell could still be 
high enough and even stable enough to meet the feed conditions 
in the "Waiting for feed conditions" status. So that the inverter does 
not switch back on again immediately, thereby subjecting inverter 
output contactor K7 to unnecessary strain due to frequent switch-
ing, after the "Operation" status the unit initially switches to the 
"Waiting" status. It remains in this status for a certain time, only 
switching to the "Waiting for feed conditions" status once this time 
has elapsed. 
The set monitoring values are regularly checked. 
Possible change of status: 
Once the delay has elapsed, the unit switches to the "Waiting for 
feed conditions" status. 
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