
2.2. List of Symbols
Symbol Explanatory note
Italics
1) Indicates reference to a section of the present manual.
2)
Italics
are also used to indicate an operation mode,
e.g. operation mode
Connecting
.
[ ] used in text 1) Encloses a path of menu navigation.
2) Also used to enclose abbreviations such as [kW].
[x] superscripted in headlines Indicates security level.
[Plant] Menu item accessible at plant level.
[Group] Menu item accessible at group level or above.
[Inverter] Menu item accessible at inverter level or above.
→
Indicates a step within menu navigation.
Note, useful information.
Caution, important safety information.
# ... # Name of plant, group or inverter in sms or e-mail mes-
sage, eg. #plant name#.
Site Map
Symbol Explanatory note
↳
Indicates a submenu.
[x] Defines current security level, where x is between 0-3.
Table 2.1: Symbols
2.3.
List of Abbreviations
Abbreviation Description
DNO Distribution Network Operator
DSL Digital Subscriber Line
EMC (Directive) Electromagnetic Compatibility Directive
ESD Electrostatic Discharge
FRT Fault ride through
GSM Global System for Mobile communications
IEC International Electrotechnical Commission
LED Light-emitting diode
LVD (Directive) Low Voltage Directive
MPP Maximum power point
MPPT Maximum power point tracking
P P is the symbol for real power and is measured in Watts (W)
PCB Printed Circuit Board
PCC Point of common coupling
PE Protective Earth
PELV Protected extra-low voltage
PLA Power Level Adjustment
P
NOM
Power, Nominal conditions
P
STC
Power, Standard Test Conditions
PV Photovoltaic, photovoltaic cells
RCMU Residual Current Monitoring Unit
R
ISO
Insulation Resistance
ROCOF Rate Of Change Of Frequency
RTC Real Time Clock
Q Q is the symbol for reactive power and is measured in reactive volt-amperes (VAr)
S S is the symbol for apparent power and is measured in volt-amperes (VA)
STC Standard test conditions
SW Software
THD Total Harmonic Distortion
TN-S Terre Neutral - Separate. AC Network
TN-C Terre Neutral - Combined. AC Network
TN-C-S Terre Neutral - Combined - Separate. AC Network
TT Terre Terre. AC Network
Table 2.2: Abbreviations
Abbreviation
Description
CN China
Table 2.3: CN Abbreviation
2. Introduction
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