"UniVert 2" inverter
3 Function of the Inverter
For technical data or unit settings, refer to the Technical Data Sheet in chapter 8.
3.1DC Input
The inverter is operated with 48 V (or 60 V) DC voltage. The input voltage is
An integrated softstart device limits the making current of the inverter to a value smaller than the rated input current. The input voltage is continuously monitored. (See chapter 3.3.)
3.2AC Output
The INV output voltage is regulated to 230 V 50 H (see chapter 3.9) and monitored (see chapter 3.5). With an output voltage present and the INV in operation, the green LED lights up "UO OK".
3.3DC Input Monitoring System
If a value falls below the "DC undervoltage,
It the "DC overvoltage,
3.4Temperature Monitoring System
Overtemperature is signalled by the red "ϑ>" LED if the heat sink temperature exceeds critical values. The faulty unit switches off after 40 seconds. Acknowledgement is made when it has cooled down. Overtemperature can result from e.g. high ambient temperature, constant overload of the INV or from fan failure.
3.5Output Voltage Monitoring System
The INV output voltage is regulated to 230 V 50 Hz (see chapter 3.9) and monitored. With an output voltage present and the INV in operation, the green "UO OK" LED lights up. When the output voltage drops below 90% of the rated value, e.g. due to overload, short circuit or the triggering of a miniature
3.6Monitoring of Functions
After connecting the input voltage, the
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