ABB Fimer PVS980-58-4782kVA-K Commissioning And Maintenance Manual

Type
Commissioning And Maintenance Manual
Central inverter
PVS980-58
From 4348 to 5000 kVA
Commissioning and
maintenance manual
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1
Commissioning and
maintenance manual
PVS980-58 central inverters
(from 4348 to 5000 kVA)
3AXD50000342198 Rev A
EN
EFFECTIVE: 2020-05-14
2020 FIMER Oy. All Rights Reserved.
2
3
Table of contents
1. Safety instructions
Use of warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installation and maintenance safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
General safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Safe start-up and operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2. Introduction to the manual
Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Target audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Contents of the manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Categorization and option code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Generic disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Cybersecurity disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Terms and Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3. Electrical commissioning
Checking the settings of the auxiliary voltage transformer (option +G415) . . . . . . . . . . . 20
1-phase power output (option +G410) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3-phase power output (option +G415+G398) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3-phase power output (option +G430) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Connecting temporary external 230/115 V AC supply for control system during commission-
ing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Smoke detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Installing fieldbus adapter modules (option +K458, +K475) . . . . . . . . . . . . . . . . . . . . . . 22
Connecting a PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4. Start-up and operation
Start-up procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Primary and ambient conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Set up the insulation monitoring device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Set-up the current transducers (option +G417) for all DC inputs . . . . . . . . . . . . . . . 26
Hints on using the assistant control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Parameter settings before the first start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
First start (local control mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Set up fieldbus control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Register the inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Starting and stopping the inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Inverter control with parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Inverter control with Start/Stop switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Inverter control with SCADA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4
5. Status indicators
LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Status display of the control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Warning and fault messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6. Maintenance
Maintenance intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Descriptions of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Annual maintenance actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Maintenance intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Reduced run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Isolation of power section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Firmware update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
To update the firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Restoring data from a backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Checking operation after a firmware update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Cleaning the cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Cleaning the cooling air intake grilles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Replacing the main cooling filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Replacing the control section air filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Cleaning the power module heat exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Replacing the main cooling fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Replacing the power module cooling fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Replacing the control section cooling fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Replacing DC fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Replacing auxiliary power supply and buffer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Replacing the memory unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Replacing the inverter power module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Replacing the power module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Safety instructions 5
1
Safety instructions
This chapter contains the safety instructions which you must obey when you install and
operate the inverter and do maintenance on the inverter. Obey these safety instructions to
prevent injury or death, or damage to the equipment.
Use of warnings
Warnings tell you about conditions which can cause injury or death, or damage to the
equipment. They also tell you how to prevent the danger.
The manual uses these warning symbols:
Electricity warning – Electrical hazards which can cause injury or death, or
damage to the equipment.
General warning Conditions, other than those caused by electricity, which
can cause injury or death, or damage to the equipment.
Electrostatic sensitive devices warning – Risk of electrostatic discharge
which can cause damage to the equipment.
6 Safety instructions
Installation and maintenance safety
Electrical safety
These instructions are for all personnel who work on the inverter, its input and output
cables and conductors, the transformer or photovoltaic (PV) generator.
WARNING! Obey these instructions to prevent injury or death, or damage to the
equipment.
WARNING! There is voltage in the DC input when the PV modules are exposed to
light.
If you are not a qualified electrician, do not do electrical installation or
maintenance work.
Obey all installation safety standards. This can require, among other things, the use of
personal protection equipment (PPE), such as arc-proof clothing, arc-proof masks,
protective footwear, protective gloves, eye protection and hearing protection. High
power inverter installations have high fault currents. Select appropriate arc-proof
clothing (for example, in the US, a rating of 40 cal/cm
2
is required).
The Standard IEC/EN 62109-2 (section 4.8.3.6) requires that, as the inverter is not
provided with full protection against shock hazards on the PV generator, install and
use the inverter in a closed electrical operating area only. There is no RCD protection
inside the inverter.
Do not do work on the PV generator, or the inverter, or its input or output cables, when
the inverter is connected to an electrical power system, or to the PV generator.
Before you do work in the AC-, DC, LCL- or power section of the inverter, isolate the
AC busbars from the electrical power system with the disconnector of the power
system transformer. Also, isolate the inverter from the PV generator with the safety
switch of the PV generator or by other means. The optional AC breaker does not
isolate the AC output busbars and terminals of the inverter from the electrical power
system.
CSA requirements: AC output circuits are isolated from the enclosure. AC system
grounding, when required by the Canadian Electrical Code, is to be done in the
installation.
Before you do work in the inverter power cabinet, turn off or isolate the auxiliary
voltage supply from the inverter.
Note: The inverter may remain energized during accessing of the control
section, IP20 touch protection is provided against accidental contact with live
parts.
WARNING! There are more than one live circuits, see the single line diagram.
The inverter auxiliary power can be supplied from an external source (standard) or
from internal auxiliary power transformers. Make sure that auxiliary power is
disconnected.
Do not operate the inverter with the doors or panels open, even in fault tracking
conditions. The inverter doors and panels act as arc hazard protection. If a highly
Safety instructions 7
unlikely arc flash incident happens when the inverter doors or panels are open, the
arc-flash proof protection equipment might not provide sufficient protection.
Do not work on the control cables when power is applied to the inverter or to the
external control circuits. Externally supplied control circuits can cause dangerous
voltages in the inverter even when the main power on the inverter is off.
Do not do insulation or voltage withstand tests on the inverter or power modules.
The installation must be done according to the local requirements (for example,
ANSI/NFPA 70, Canadian electric Code, and so on).
Utility interconnection may require approval from authority with local jurisdiction.
Note: With DC side functional grounding (negative as standard), one of the
poles of the PV generator is grounded, and therefore, the other pole has full
voltage against ground (up to 1500 V).
Grounding
These instructions are for all personnel who are responsible for the grounding of the
inverter.
WARNING! Obey these instructions to prevent injury or death, damage to the
equipment and electromagnetic interference.
Only qualified electricians are permitted to do grounding work.
Always ground the inverter and adjoining equipment. Correct grounding also
decreases electromagnetic emissions and interference. Follow the site’s policy on
disconnecting the inverter from AC and DC.
The cross-sectional area of protective bonding conductors for connection to the main
earthing terminal need not exceed 25 mm
2
Cu or an equivalent cross-sectional area
for other materials. Refer to standard IEC 60364-5-54.
In a multiple-inverter installation, connect each inverter separately to the protective
earth (PE) busbar of the switch board or the transformer.
Avoid grounding loops and keep grounding cables at least 0.5 m away from AC
conductors, as current can be generated to a grounding loop by electromagnetic
coupling.
External EMC filters are not permitted at the AC output of the inverter.
Do not install the inverter on a TN (grounded) system.
Note: The normal touch current of the inverter can be more than 3.5 mA AC or
10 mA DC, use a fixed protective earth connection. Refer to standard IEC/EN
62109, 5.2.5.
Electric welding
WARNING! Do not fasten the cabinet by electric welding. FIMER does not
assume any liability for damages caused by electric welding as the welding circuit
can damage electronic circuits in the cabinet, as well as the doors or the cabinet
itself.
8 Safety instructions
Electrical safety precautions
These precautions are for all personnel who work on the inverter, its input and output
cables or conductors, the transformer or the photovoltaic (PV) modules.
WARNING! Obey these instructions to prevent injury or death, or damage to the
equipment. You must be a qualified electrician to do installation and service work.
Review these steps before you do installation or maintenance work on the
inverter.
1. Prepare for the work. Make sure you have a work order. Select the applicable personal
protective equipment.
2. Clearly identify the work location. Make sure that there is an escape route available in
case of an emergency.
3. Disconnect and isolate. (Not all disconnectors provide sufficient isolation against
voltage surges.)
Disconnect the inverter from the AC supply (normally a disconnector or a breaker
on the HV side of the main transformer), because the optional AC breaker of the
inverter does not remove the voltage from the AC output of the inverter (a).
Disconnect the inverter from the DC power supply (usually the DC switches of the
solar array junction boxes or the DC combiner box) (b).
Make sure that reconnection is not possible. Lock all of the disconnectors in the
open position and attach a warning notice to them (lockout-tagout).
After you disconnect the inverter, wait for at least 5 minutes to let the capacitors
discharge before you continue.
Open the optional AC main circuit breaker (Q4) through software parameter
214.02.
Open the auxiliary measurement unit switch (-F3.4).
Open the auxiliary power disconnectors (-Q64) and external supply (c) if the
inverter is supplied from external auxiliary power.
Remove the optional auxiliary power fuses (-F10.1-2 and -F20.1-2).
Remove the optional 3-phase output fuses (-F62.1-3).
Safety instructions 9
Open the optional 3-phase output switch (-Q62) and the 1-phase output circuit
breakers (-F70 and optional -F63).
4. Make sure that there is no AC or DC voltage present.
Use a voltage detector with nominal voltage of 1500 V DC and minimum withstand
voltage of 3000 V DC (in rare fault cases the voltage on the DC terminal can be
two times the system voltage). The detector must be rated for outdoor use, and
must have a self-testing feature to ensure that it works correctly. Notice the
weather conditions of the site when you do the measurements: do not measure in
wet conditions. Do not use a multimeter.
Verify that the voltage between the AC busbars and the grounding (PE) busbar is
close to 0 V.
Make sure that the voltage between the inverter AC output terminals (L1, L2, L3)
[i] and the grounding (PE) busbar [ii] is close to 0 V. Measure every phase-to-
phase and phase-to-ground voltage (L1-L2, L1-L3, L2-L3, L1-GND, L2-GND and
L3-GND).
Verify that the voltage between the DC+ and DC- input terminals [iii] is close to
0 V.
5. Install temporary grounding. Connect the AC and DC busbars to the PE with a
temporary grounding tool. Temporary grounding must withstand the available short-
HV ring main unit (RMU)
External
auxiliary
power
a
b
b
c
i
ii
iii
10 Safety instructions
circuit current of the AC or DC supply. One temporary grounding device may not be
enough on the AC side. On the DC side, connect the grounding tool on the ball
terminals located in the DC section (see the Figure below). On the AC side, connect
the grounding tool on the ball terminals in the AC section (option +F271, see the
Figure below). If the prospective short circuit current is more than 40 kA, the internal
grounding option cannot be used, and the AC side grounding for work must be done
outside the inverter.
6. Protect any other energized parts in the work location against contact. Take special
precautions when you work near bare conductors.
7. Ask the person in charge of work for a permit to work.
After you finish the work, make sure that the inverter is clean from inside and that all the
tools have been removed from inside the inverter, remove the temporary grounding and
inform the person responsible that work is complete. After you make sure that the voltage
can be connected, close the doors of the inverter. When connecting voltage back on, do
not stand right next to the inverter. Also make sure that there is an escape route available
in case of an emergency.
Safety instructions 11
General safety
These instructions are for all personnel who install the inverter and/or perform
maintenance work on it.
WARNING! Obey these instructions to prevent injury or death, or damage to the
equipment.
Move the power module carefully:
Use safety shoes with a steel toe cap and protective gloves.
Use caution when you move the power module. Do not tilt the module. The
module is heavy. Careless handling of the power module may cause it to topple
over resulting in bodily injury and/or damage to the equipment.
Do not handle the power module alone, have at least two persons handling the
power module.
Keep the spare power module always in the transport package when moving and
storing, and remove it from the package just before replacement work.
Obey the instructions in all related PVS980 manuals.
Be aware of the cooling fan blades. The fans can operate for a few seconds after you
disconnect the electrical supply. Do not stick fingers or other objects into the fans.
Be aware of hot surfaces. Some parts in the inverter cabinet, such as the heat
exchangers are hot after you disconnect the electrical supply.
Make sure that the debris from the installation work does not go into the inverter.
Electrically conductive debris in the unit can cause damage.
Do not open the doors of the inverter when it is raining, or when sand or dust can blow
into the unit. Water or sand in the inverter can cause damage in the unit.
Note for UL installations:
The DC input and AC output circuits are isolated from the enclosure and the
ground as standard. There is PV system grounding, but floating system is an
option, if inverter grounding is required by Section 250 of the National Electrical
Code, ANSI/NFPA 70, the inverter must be ordered with the grounding. The
installation must agree with the requirements of Sections 690.41 through 690.47
of the National Electrical Code, ANSI/NFPA 70.
Printed circuit boards
WARNING! Use a grounding wristband when you handle the printed circuit
boards. Do not touch the boards unnecessarily. The boards have components
that are sensitive to electrostatic discharge.
12 Safety instructions
Fiber optic cables
WARNING! Obey these instructions to prevent injury or death, or damage to the
equipment.
Handle the fiber optic cables with care.
When you disconnect the cables, hold the connector, not the cable.
Do not touch the ends of the fibers with bare hands as the ends are extremely
sensitive to dirt.
Do not bend the fiber optic cables too tightly. The minimum permitted bend radius is
35 mm (1.4 in).
Safety instructions 13
Safe start-up and operation
These warnings are for all personnel who commission, plan the operation, or operate the
inverter.
WARNING! Obey these instructions to prevent injury or death, or damage to the
equipment.
Keep all doors and cover plates of the inverter closed during operation.
Before you connect the main AC supply, close the auxiliary measurement unit switch
(F3.4), the optional internal auxiliary transformer fuses (F10.1-2 and F20.1-2), the
optional 3-phase output fuses (F62.1-3), and after that the auxiliary power
disconnector (Q64).
If the inverter is supplied from external auxiliary power, connect it and close the
disconnector (Q64).
Before you put the inverter, make sure that all of the equipment is suitable for
operation.
Do not use the inverter in a manner not specified in this manual.
Note for UL installations: To reduce the risk of fire, connect the inverter only to
a circuit provided with branch-circuit overcurrent protection in accordance with
the National Electrical Code, ANSI/NFPA 70 for UL installations.
Note: If the Start switch is in the 1-RUN position, the Inverter enable signal is
active, and the Start command is active, the inverter starts immediately after a
fault reset. For more information, refer to the Firmware manual.
14 Safety instructions
Introduction to the manual 15
2
Introduction to the manual
This chapter describes the intended audience and contents of the manual.
Applicability
This manual is applicable to PVS980-58 central inverters that follow:
PVS980-58-4348kVA-I
PVS980-58-4456kVA-J
PVS980-58-4782kVA-K
PVS980-58-5000kVA-L
Target audience
This manual is intended for FIMER trained and certified persons who commission and
service the inverter. Read the manual before you do work on the inverter. You are
expected to know the fundamentals of electricity, wiring, electrical components and
electrical schematic symbols.
16 Introduction to the manual
Contents of the manual
Safety instructions – Safety instructions for the installation, commissioning, operation and
maintenance of the inverter.
Introduction to the manual – Introduction to the manual.
Start-up and operation – The start-up procedure and the operation of the inverter.
Status indicators – The visible status indicators of the inverter.
Maintenance – The preventive maintenance instructions of the inverter.
Categorization and option code
Some instructions, diagrams, technical data, dimensions and options apply only to specific
units. To identify the unit, refer to the type designation labels on the unit. The instructions
and technical data of optional components are marked with option codes, for example,
+K475. For information on how to read the type designation, refer to the Hardware
manual.
Disclaimers
Generic disclaimer
The manufacturer shall have no obligation hereunder with respect to any product which (i)
has been improperly repaired or altered; (ii) has been subjected to misuse, negligence or
accident; (iii) has been used in a manner contrary to the Manufacturer's instructions; or (iv)
has failed as a result of ordinary wear and tear. All material in this manual is subject to
change without a further notice. The manual is intended as a non-contractual document.
Cybersecurity disclaimer
This product is designed to be connected to and to communicate information and data via
a network interface. It is the sole responsibility of the customer to provide and continuously
ensure a secure connection between the product and customer network or any other
network (as the case may be). The customer shall establish and maintain any appropriate
measures (such as, but not limited to, the installation of firewalls, application of
authentication measures, encryption of data, installation of anti-virus programs and so on)
to protect the product, the network, its system and the interface against any kind of
security breaches, unauthorized access, interference, intrusion, leakage and/or theft of
data or information. FIMER and its affiliates are not liable for damages and/or losses
related to such security breaches, any unauthorized access, interference, intrusion,
leakage and/or theft of data or information.
Introduction to the manual 17
Terms and Abbreviations
Term/Abbreviation Explanation
ASL Above sea level
AC500 ABB programmable logic controller (PLC) series
ACS-AP-I Control panel type
Aux. Auxiliary
BAMU Auxiliary measuring unit
BCU Control unit
CPU Central processing unit
DC input Connection point from solar array to inverter. One input consists of one positive and
one negative terminal.
EMC Electromagnetic compatibility
FENA Optional Ethernet adapter module for EtherNet/IP, Modbus TCP and PROFINET IO
protocols.
Frame (size) Relates to the construction type of the component in question. The term is often used
in reference to a group of components that share a similar mechanical construction.
FSCA Optional Modbus RTU adapter module
HMI Human-machine interface
IGBT Insulated gate bipolar transistor; a voltage-controlled semiconductor type widely used
in inverters due to its easy controllability and high switching frequency.
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 Input/Output
MCB Miniature circuit breaker
MGND Solar array functional grounding unit
MIRU Solar array insulation resistance measuring unit
MPPT Maximum power point tracking. Inverter software function that automatically operates
the photovoltaic generator at its maximum power point.
Photovoltaic cell,
generator, module,
string, array and array
junction box
In this manual, solar power system components based on photovoltaic effect are
called solar cell, solar module, solar array, solar string and solar array junction box as
defined below.
PLC Programmable logic controller
PSL2 Protocol used in optical fiber communication inside FIMER drives and inverters
PV Photovoltaic
R35i Inverter power module
SCADA Supervisory control and data acquisition
Solar array Group of parallel-connected solar strings
18 Introduction to the manual
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ABB Fimer PVS980-58-4782kVA-K Commissioning And Maintenance Manual

Type
Commissioning And Maintenance Manual

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