Involar MAC500 Series Operation instructions

INVOLAR Corporation, Ltd.
Tel: [phone] Fax: [phone]
E-mail: [e-mail]
Web: www.INVOLAR.com
invo2
INVOLAR Grid-Connected Photovoltaic
Micro-Inverter
Model Number MAC500-XX
User Operating Manual
(Manual Version_1.12 MAC500-XX)
This manual is an integral part of the unit. Please read the instruction manual
carefully before installation, operation or maintenance. Keep this
instruction manual for future reference.

INVOLAR Corporation, Ltd.
Manual version 1.12 INVOLAR Corporation Ltd. Mar. 2016
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Contact Information
INVOLAR Corporation Ltd
Power Lab, No.898 Laiting South Road, Shanghai, 201615, China
Tel：[phone]
Fax: [phone]
www.INVOLAR.com
[email protected]

INVOLAR Corporation, Ltd.
Manual version 1.12 INVOLAR Corporation Ltd. Mar. 2016
3
Table of Contents
1READ THIS FIRST.................................................................................................................................................. 4
2SAFETY SYMBOLS............................................................................................................................................... 5
3SAFETY INSTRUCTIONSAND EC DIRECTIVES................................................................................................... 8
EC DIRECTIVES ................................................................................................................................12
4THE INVOLAR MICRO-INVERTER SYSTEM INSTRUCTION................................................................................20
THE INVOLAR MICRO-INVERTER SYSTEM........................................................................................20
THE INVOLAR MAC500...............................................................................................................20
FEATURES .........................................................................................................................................21
5INVOLAR MAC500INSTALLATION ......................................................................................................................22
5.1 INVOLAR MAC500OPERATIONAL ENVIRONMENT ..................................................................23
5.2 INVOLAR MAC500 OPERATIONAL CONDITION IN PV SYSTEM ...............................................24
5.3 INSTALLATION STEPS ...................................................................................................................24
5.4 INVOLAR MAC500 OUTSIDE DIMENSION ..............................................................................25
5.5 DETAILED INSTALLATION PROCEDURE.........................................................................................26
6. FUNCTION INSTRUCTIONS.................................................................................................................................31
WORKING MODE ............................................................................................................................31
GRIDCONNECTION .........................................................................................................................32
GRID DISCONNECT .........................................................................................................................32
START-UP CHECKS ...........................................................................................................................33
7DISCONNECTING A MICRO-INVERTER FROM THE PV MODULE.....................................................................34
8MONITORING AND TROUBLESHOOTING AND MAINTENANCE....................................................................35
SAFETY CHECKS................................................................................................................................35
MAINTAIN PERIODICALLY .................................................................................................................35
OVERVIEW.......................................................................................................................................36
MAC500 MICRO-INVERTER STATUS LED INDICATIONS AND ERROR REPORTING........................36
9INTERNET WEB....................................................................................................................................................39
USER REGISTRATION .........................................................................................................................39
USER LOGIN.....................................................................................................................................39
10 INVOLAR MAC500 MICRO-INVERTER TECHNICAL DATA...........................................................................40
TECHNICAL SPECIFICATIONS ............................................................................................................40
11 APPENDIX ..........................................................................................................................................................42
LIMITED WARRANTY .........................................................................................................................42
12. INVOLAR MAC500 MICRO-INVERTER SYSTEM WIRING DIAGRAM ......................................43

INVOLAR Corporation, Ltd.
Manual version 1.12 INVOLAR Corporation Ltd. Mar. 2016
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IMPORTANT SAFETY
INSTRUCTIONS
SAVE THESE INSTRUCTIONS
1Read This First
This Micro-Inverter with a revolutionary technology maximizes the energy conversion from
photovoltaic solar modules, enhanced system reliability, and greatly simplifies the
installation and reduces the maintenance time and cost.
To reduce the risk of electrical shock, and to ensure the safe installation and operation of
the INVOLAR MAC500 Micro-Inverter, please read this manual carefully and pay attention
to the safety symbols appear throughout this document.
This manual is for end users.

INVOLAR Corporation, Ltd.
Manual version 1.12 INVOLAR Corporation Ltd. Mar. 2016
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2Safety Symbols
Warnings and cautions tell you about the dangerous conditions thatmay occur
if you do not follow all instructions in this manual.
Please read following safety symbols which indicate dangerous conditions and
important safety instruction.
DANGER
The DANGER symbols in this manual and on MAC500
Micro-inverters indicate a hazard with a high level of risk
which if not avoided, will result in death or serious injury.
WARNING
The WARNING symbols in this manual and on
MAC500Micro-inverters
indicate a hazard with a medium level of riskwhich if
notavoided, could result in death or serious injury.
CAUTION
The CAUTION symbols in this manual and on MAC500
Micro-inverters indicate a hazard with a low level of risk
which if not avoided, could result in minor or moderate
injury.
NOTE
The NOTE symbols in this manual indicate important product information.

INVOLAR Corporation, Ltd.
Manual version 1.12 INVOLAR Corporation Ltd. Mar. 2016
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Symbols replace words on the equipment, on a display, or in manuals.
Trademark
No access for unauthorized personnel
Caution, risk of danger
Symbol for the marking of electrical and
electronics devices according to Directive
2002/96/EC. Indicates that the device, accessories
and the packaging must not be disposed as
unsorted municipal waste and must be collected
separately at the end of the usage. Please follow
local ordinances or regulations for disposal or
contact an authorized representative of the
manufacturer for information concerning the
decommissioning of equipment.
Direct current
Alternating current
Protective conductor
Earth (ground) TERMINAL
Protective ConductorTerminal
Fuse
Refer to the operating instructions
Caution, risk of electric shock
Caution, hot surface temperature
RISK OF ELECTRIC SHOCK! Energy storage timed
Discharge: 45 minutes! Hazardous voltage present
for up to 45 minutes after disconnection from
power supply.

INVOLAR Corporation, Ltd.
Manual version 1.12 INVOLAR Corporation Ltd. Mar. 2016
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Isc PV
Maximum short circuit current (DC) value which
the inverter is rated. This rating of the PCE refers to
the absolute maximum current the PV input of the
solar inverter is designed for under conditions of
expected use.
OVC
Overvoltage category (OVC)Designated
category to which the inverter voltage is deemed
suitably safe.
Vmax PV
Maximum rated (DC) input voltage value which
the inverter is rated. This rating of the PCE refers to
the absolute maximum voltage the PV input of the
solar inverter is designed for under conditions of
expected use.
CE mark is attached to the solar inverter to verify
that the unit follows the provisions of the European
Low Voltage and EMC Directives
PV
Photovoltaic
DC terminal, indicating the polarity of the
connections, positive，all positive connections shall
be marked with Redinsulated wire.
DC terminal, indicating the polarity of the
connections, negative, all negative connections
shall be marked with black insulated wires.
PCS
Power conversion equipment, hereby is our
DC/AC inverter
Service Personnel
A person having appropriate technical training
and experience necessary to be aware of hazards
to which that person may be exposed in
performing a task and of measures to minimize the
risks to that person or other persons
Qualified
CompetentPersonnel
Person adequately advised or supervised by an
electrically skilled person to enable him or her to
perceive risks and to avoid hazards which
electricity can create. For the purpose of the
safety information of this manual, a "qualified
person" is someone who is familiar with
requirements for safety, refrigeration system and
EMC and is authorized to energize, ground, and
tag equipment, systems, and circuits in
accordance with established safety procedures.
The INVOLAR inverter system may only be
commissioned and operated by competent
personnel.

INVOLAR Corporation, Ltd.
Manual version 1.12 INVOLAR Corporation Ltd. Mar. 2016
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DVC
Decisive voltage class
Closed Electrical Operating
Area
Room or location for electrical equipment to
which access is restricted to skilled or instructed
persons by the opening of a door or the removal
of a barrier by the use of a key or tool and
which is clearly marked by appropriate warning
signs
Technical Competence
The procedures described in this manual should be
performed by trained competent personnel only.
Maintenance should only be undertaken bycompetent
individuals who have a general knowledge of and
experience with devices ofthis nature. No repairs
should ever be undertaken or attempted by anyone
not havingsuch competency.
Compliance with safety regulations depends upon installing and configuring system
correctly, including using the specified wirings. The system must be installed only by
professional assemblers who are familiar with requirements for safety, Photovoltaicsystem
and EMC. The assembler is responsible for ensuring that the end system complies with all the
relevant laws in the country where it is to be used.
INVOLAR requires using only genuine replacement parts,manufactured or sold by INVOLAR.
Read completely through each step in every procedure before starting the procedure;any
exceptions may result in a failure to properly and safely complete the attemptedprocedure.
The individual sub-assembly of the system shall be interconnected by means of the wiring
methods outlined in national/international regulations but not limited to the BS7671
Requirements/ VDE regulation 0107.
All electrical installations must be made in accordance with the NationalElectrical
regulations, and any other codes and regulationsapplicable to the installation site.
Servicing of this product in accordance with this manualshould never be undertaken in the
absence of proper tools, test equipment andthe most recent revision to this manual which is
clearly and thoroughlyunderstood.
3Safety Instructionsand EC Directives
This chapter contains the safety instructions which you must follow when installing, operating
and servicing the unit.If ignored, physical injury or death may follow, or damage may occur
to the unit. Read the safetyinstructions before you commence work on the unit. If you are
unable to understand the Dangers, Warnings, Cautions or Instructions, contact the
manufacturer or an authorized servicedealer before installing, operating and servicing the
unit.
For INVOLAR Micro-Inverter Warranty Terms and Conditions, see the appendix of this
manual.
SAVE THESE INSTRUCTIONS- This manual contains important instructions for the

INVOLAR Corporation, Ltd.
Manual version 1.12 INVOLAR Corporation Ltd. Mar. 2016
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MAC500 that shall be followed during installation and maintenance.
Be aware that only competent personnel should install and /or replace INVOLAR
Micro-Inverters.
Perform all electrical installations in accordance with all local electrical codes.
Compliance with the rules of correct use of tools and personal protective equipment
(PPE) ensuring a safe installation.
The inverter can still be chargedwith a hazardous voltage after being disconnected
from the supply. Allow a 45 minute discharge period before working on the inverter.
Be aware that only competent personnel should maintain INVOLAR Micro-Inverter.
Connect the INVOLAR Micro-Inverter to the electrical utility grid only after receiving
prior approval from the utility company.
During the day time, use opaque covering on PV array to screen the sunshine before
installing the INVOLAR Micro-Inverter, thus eliminating the risk of electric shock to
persons working on the system.
The photovoltaic micro-inverter is not intended to be secured to the back of the
photovoltaic module. Itshould be secured to the framework supporting the PV
module.
MAC500 is intended to be connected only to a dedicated branch circuit.
The device is not provided with ground-fault detector/interrupter unit.
WARNING
Always disconnect the unit from the MAINS and PV supply by the
external customer installed disconnecting devices before
installation, servicing and maintenance works, and placed a
warning sign adjacent to switch “do not turn on maintenance in
progress”.
WARNING
PV arrays become energized when exposed to light.Use safe
working practices whenworking on PV arrays as both AC and DC
can be present.
CAUTION!
The device is intended for fixed installation. Located on a part
that is not removable without shutdown to the operation of the
unit.
WARNING
Risk of electric shock, Do not open cover. No user serviceable
parts inside. Servicing limited to competent service personnel.

INVOLAR Corporation, Ltd.
Manual version 1.12 INVOLAR Corporation Ltd. Mar. 2016
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WARNING
Do not use fuseswhich are not approved by the manufacturer.
They should be of same type and rating value as specified
Only competent personsshould replace the fuse.
AC fuse (F2,F3)
Littelfuse
215; AC 250V, 3.15A, 5×20mm, rated
breaking capacity: 1500A
WARNING
Risk of electric shock –Both A.C. and D.C. voltage sources are
terminated inside this device. Each circuit must be individually
disconnected before servicing.
WARNING
Hot surfaces –To reduce the risk of burns –Do not touch device
surface when the device is running.
Allow 30 minutes cooling down period after switch off before
handling the device.
WARNING
Risk of electric shock from energy stored in capacitor! Do not
remove cover until 45 minutes after disconnecting all sources of
supply.
WARNING
The printed circuit boards contain components sensitive to
electrostatic discharge. Wear a grounding wrist band when
handling the boards. Do not touch the boards unnecessarily.
WARNING
Do not operate device if found to be damaged or lacking parts.
WARNING
Before installing the unit, obtain approval from the utility
company.
WARNING
Ensure adequate spacing distances between the unit and other
equipment or structures.Ensure that air can pass freely around the
unit for heat dissipation and maintenance accessibility.