Lenze i550 Series Project Planning Manual

Mains connecon
The following should be considered for the mains connecon of inverters:
Single inverters are either directly connected to the AC system or via upstream lters. RFI l-
ters are already integrated in many inverters. Depending on the requirements, mains chokes
or mains lters can be used.
Inverter groups are connected to the DC system with the DC bus. For this purpose, the inver-
ters have to be provided with a connecon for the DC bus, e. g. terminals +UG/-UG.
This enables the energy exchange in phases with operaon in generator and motor mode of
several drives in the network.
The DC system can be provided by power supply modules (AC/DC converters) or inverters with
a power reserve.
The technical data informs about the possible applicaons in the given groups. In the dimen-
sioning, data and further notes have to be observed.
Informaon on electrical installaon
Mains connecon
49

Lenze i550 Series Specifications

General

Protection Class	IP20
Ambient Temperature	-10°C to +50°C
Overload Capacity	150% for 60 seconds
Control Type	Vector control
Communication Interfaces	CANopen, Modbus, Ethernet, PROFIBUS, PROFINET
Safety	STO (Safe Torque Off)
Frequency Range	0 Hz
Cooling Method	Air cooling
Storage Temperature Range	-25°C to +70°C
Input Voltage Range	3-phase 380...480 V AC -15%/+10%