Operation Manual

Protect PV.250 Operating Instructions

Page 41 of 51 80000027023 BAL, en

7.1.1 Signalling

LEDs:

Red, permanently ON: Deactivating fault

(must be acknowledged via the menu)

Red, flashing: Self-acknowledging deactivating fault

Yellow, flashing: Self-acknowledging messages

Green OFF: INV in sleep mode

Green, flashing (1 Hz): INV waiting for feed conditions

Green, flashing (0.5 Hz): INV feeding into mains with derating

Green, permanently ON: INV feeding into mains

Acoustic signal generator:

Signal generator ON: Urgent messages and system fault

7.1.2 Keyboard Operation

You can use the ENTER key to open and close submenus and

to acknowledge control functions and parameters.

The 4 display keys are assigned to different functions. The key

functions that are currently active are represented as symbols

which can be found in a small framed area on the right-hand side

of the LCD.

In the "Operating display" and "Inverter" menus, you can switch

the inverter on and off using the general keys. The keyboard

symbols in the menu indicate the control function which is currently

available. If a switch-off procedure has been initiated, you must

confirm it by means of a security prompt in order to avoid inadver-

tent switching off. The general control system of the inverter can

be blocked and protected with a password.

If a unit fault occurs, refer to the "Inverter" menu, where the

cause is specified. After eliminating the cause, acknowledge the

fault in the menu. You can then switch the individual converters

back on again.

You can acknowledge the acoustic signal generator using the

keyboard. On the LCD operating display you will find a special ac-

knowledgement key represented by a loudspeaker symbol. In all

other menus, you can press any key (even a key to which no func-

tions have been assigned) to acknowledge the generator. If the

number of messages or faults increases, the acknowledgement is

cancelled. You can impose a general block both on the acoustic

signal generator from notifying you of faults and on the clicking

sound when you press a key.