Protect PV.500_MH Operating Instructions
8 Graphical Display and Operation Unit
8.1General Information
The graphical Display and Operation Unit (DOU) is integrated into the front of the solar inverter. It serves to signal and visualise unit data and to control the inverter system. The DOU consists of a display unit with 3 LEDs, a graphical LCD and an operating panel with 5 keys.
The global unit status can be read from the LEDs (1). An acoustic signal generator stresses the urgency of critical system statuses.
The graphical LCD shows equipment statuses and measured val- ues using symbols and plain text. You can control and parametrise the unit using menus which are protected by a password.
The DOU is operated using 4 display keys, to which alternating functions are assigned, and one ENTER key. The key functions that are currently active are shown on the LCD in the form of sym- bols.
Figure 24 DOU
1LEDs: Red, yellow, green (from top to bottom)
2Graphical display (LCD)
34 general function keys
4ENTER key
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