Setting The Medium Voltage; Activating The Manual Resume Mode - SMA SUNNY CENTRAL 500CP-JP User Manual

7 Grid Monitoring

7.6 Setting the Medium Voltage

The medium voltage of the Sunny Central must match the medium voltage of the medium-voltage grid.
It is important that the transmission ratio of the external MV transformer is adjusted at the same time. The undervoltage
side is already preset for the specific device.
Refer to the parameter list (see Section 12.1.2 "Grid Monitoring/Grid Limits", page 98) for the default value of the
parameter VRtg.
Procedure:
1. Log into the user interface.
2. Set the parameter TrfVolExlHi (see Section 6.2, page 40).
3. Set the parameter VRtg.
4. Confirm the parameter entry with [Save].

7.7 Activating the Manual Resume Mode

If the Sunny Central has switched off due to grid limit infringement, you can prevent an automatic restart of the
Sunny Central. The Sunny Central will not switch back on until the error has been acknowledged. You can activate the
Manual Resume Mode for individual errors of grid limit infringement. You can read off the reason for the current restart
block in the instantaneous value ManResStt.
Procedure:
1. Log into the user interface.
2. To activate the Manual Resume Mode for individual disturbances, set the desired parameters to On:
Manual Resume Mode after
Disconnection due to overvoltage
Disconnection due to undervoltage
Disconnection due to overfrequency
Disconnection due to underfrequency
Disconnection due to passive islanding detection ManResPID
Disconnection due to disturbance in a line
conductor
3. Confirm the parameter entry with [Save].
48 SCCP-JP-BA-A4-en-12
Parameter
ManResOvrVol
ManResUndrVol
ManResOvrFrq
ManResUndrFrq
ManResPLD
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