Program features 33
• If the absolute value of the reactive power reference decreases 213.52 Night Q low
power for a duration of 213.53 Night Q delay, the inverter disconnects from the AC
side and proceeds to normal Sleep mode.
• A separate reactive power reference can be set for Night Q production with parameter
213.54 Night Q reference. If this reference differs from 0 kvar, it is used. If the
reference is 0 kvar, the normal reactive power reference is used.
• If during the night, the absolute value of the reactive power reference increases more
than 213.52 Night Q low power, the inverter connects to the AC grid and starts
producing reactive power.
• In the morning, the inverter transfers smoothly from Night Q mode to power generation
mode, when the panels produce enough power for the panel DC voltage to rise above
the required limit. See Night Q mode to power generation mode transition curve.
Figure 13. Night Q mode to power generation mode transition curve
Settings
Parameters: 213.51...213.54
Yes
Yes
No
Yes, if Night Q is active
Otherwise no
Inverter connected to the grid
Solar panels connected to the inverter
DC voltage in normal standby
0
Wake-up time
DC voltage in Night Q
Minimum DC voltage
Active power
DC voltage and solar array voltage
Solar array voltage
213.05 Min input voltage for wake-up
213.07 Delay for grid connection
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