Introduction 9
Terms and abbreviations
Term/Abbreviation Explanation
AC500 ABB programmable logic controller (PLC) series
ACS-AP-I Control panel type
Aux. Auxiliary
BAMU Auxiliary measuring unit
BCU Control unit
BU Branching unit
CPU Central processing unit
CS Control section
DC input Connection point from solar array to inverter. One input consists of one positive
and one negative terminal.
DDCS Distributed drives communication system. A protocol used in optical fiber
communication inside and between drives and inverters.
Drive Composer PC tool for operating, controlling, and monitoring inverters
FENA Optional Ethernet adapter module for EtherNet/IP, Modbus TCP and PROFINET
IO protocols.
FSCA Optional Modbus RTU adapter module
IGBT Insulated gate bipolar transistor.
Inverter A cabinet-built device containing all inverter modules together with their control
electronics, and I/O and auxiliary components. The inverter module converts the
DC voltage to AC voltage. Its operation is controlled by switching the IGBTs.
I/O, IO Input/Output
LCL Passive line filter
MCB Main circuit breaker
MGND Solar array functional grounding unit
MIRU Solar array insulation resistance measuring unit
MPPT Maximum power point tracking. Inverter firmware function that automatically
operates the photovoltaic generator at its maximum power point.
NETA Ethernet adapter module (optional)
PLC Programmable logic controller
PV Photovoltaic
SCADA Supervisory control and data acquisition
Solar array Group of parallel-connected solar strings
Solar generator The total of all solar strings of a solar power supply system, which are electrically
interconnected
To Next Page
Loading...
Need help?
General