Operation Manual

Protect PV.250 Operating Instructions
Page 12 of 51 80000027023 BAL, en
Possible change of status:
Once the delay has elapsed, the unit switches to the "Waiting for
feed conditions" status.
If a deactivating or self-acknowledging fault is triggered, the unit
switches to the "Fault" status.
The status can be switched from "Operation" to "OFF" using the
"Off" control command.
4.1.5 The "Fault" Status
If a deactivating or self-acknowledging fault is triggered (see Chap-
ter 5), the unit switches to the "Fault" status.
The monitoring systems are activated.
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 the unit back to the "Wait-
ing" status".
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.
4.1.6 The "Night" Status
If the DC voltage falls below a certain value for a certain time, the
Protect PV.250 switches to the "Night" status.
The monitoring systems are activated.
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
value for a certain time, the unit switches to the "Waiting for feed
conditions" status.
If a deactivating or self-acknowledging fault is triggered, the unit
switches to the "Fault" status.
The status can be switched from "Operation" to "OFF" using the
"Off" control command.
4.1.7 Sequence Control During the Course of the Day
Early morning:
The Protect PV.250 is in the "Night" status. The sun's rays in-
crease 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.