AEG PV.500-MH manual 5.1.5The Fault Status, 5.1.6The Night Status, Possible change of status

Protect PV.500-MH Operating Instructions

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.

5.1.5The "Fault" Status

If a deactivating or self-acknowledging fault is triggered ( Chap- ter 6), the equipment switches to the "Fault" status.

The set monitoring values are regularly checked. In this status, no power is fed into the mains.

Possible change of status:

If a self-acknowledging fault has been triggered and this fault does indeed acknowledge itself, the unit switches to the "Waiting for feed conditions" status.

If a deactivating fault has been triggered, the "Acknowledge fault" control command can be used to switch back to the "Waiting" sta- tus.

The status can be switched from "Fault" to "OFF" using the "Off" control command. In the "OFF" status, the unit is always free of faults.

5.1.6The "Night" Status

If the DC voltage falls below a certain value for a certain time, the equipment switches to the "Night" status.

The set monitoring values are regularly checked. In this status, no power is fed into the mains.

Possible change of status:

If, the following morning, the DC voltage rises above a certain val- ue for a certain time, the equipment switches to the "Waiting for feed conditions" 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.

5.1.7Sequence Control During the Course of the Day

Early morning:

The equipment is in the "Night" status. The sun's rays increase the DC voltage generated by the PV cells. If this voltage stays above a certain value for a certain time, the unit switches to the "Waiting for feed conditions" status.

The DC voltage continues to be monitored in this status. In order for a start-up attempt to be made, it must remain above a certain value for a certain time. The mains voltage and mains frequency are also checked. These values must be within certain limits.

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