Protect
5.1.8Sequence Control Parameters
Underfrequency, overfrequency, undervoltage, overvoltage:
The equipment will only switch from the "Waiting for feed condi- tions" status to the "Operation" status if the feed conditions are met. These conditions include the mains voltage and the mains frequency. These values must be within certain limits described by the
Voltage limit value for night detection, delay time for night detection:
If the DC voltage falls below the voltage limit value for longer than the delay time, the unit switches to the "Night" status.
Voltage limit value for day detection, delay time for day detection:
If the DC voltage rises above the voltage limit value for longer than the delay time, the equipment switches to the "Waiting for feed conditions" status.
Inverter stack switch-on time:
The time for which the inverter stack is switched on during a start- up attempt
Permissible voltage dip after switching on the stack:
Prior to the
If the
Delay until the next
After the failure of a
Power limit value for shutdown, delay time for shutdown:
If the power fed into the mains remains below the limit value for longer than the delay time, the unit switches to the "Waiting" sta- tus.
Standard delay for a renewed
offset delay added to the standard delay after shutdown, maximum number of times the offset delay can be added to the standard delay:
Variable delay in the "Waiting" status Chapter 5.1.4.
Minimum DC voltage,
fill factor (PV system parameter):
If the DC voltage rises above a value resulting from the minimum
DC voltage divided by the fill factor, a
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