Morningstar TriStar MPPT 600V User manual

Installation and Operation Manual
Solar System Controller
8 Pheasant Run
Newtown, PA 18940 USA
email: [e-mail]
www.morningstarcorp.com
Solar Battery Charger With
TrakStarTM Maximum Power Point Tracking Technology
Models:
TS-MPPT-60-600V-48
TS-MPPT-60-600V-48-DB
MAXIMUM POWER POINT TRACKING
TRISTAR MPPT 600V
TM

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Dimensions in Inches [Millimeters]

Contents
1.0 Important Safety Instructions 4
2.0 Getting Started 8
2.1 Overview 8
2.2 Regulatory Information 8
2.3 Versions and Ratings 9
2.4 Features 10
2.5 Optional Accessories 14
3.0 Installation 16
3.1 General Information 16
3.2 Wiring Zones 17
3.3 Conduit Knock-outs and Wiring Routing 18
3.4 Controller Installation 20
4.0 Operation 38
4.1 TrakStarTM MPPT Technology 38
4.2 Battery Charging Information 39
4.3 Push button 47
4.4 LED Indications 48
4.5 Protections, Faults & Alarms 50
5.0 Networking and Communication 53
5.1 Introduction 53
5.2 Morningstar MeterBusTM 54
5.3 Serial RS-232 55
5.4 EIA-485 (formerly RS-485) 57
5.5 Ethernet 58
6.0 Trouble-Shooting 62
7.0 Maintenance and Service 64
7.1 Important Safety Instructions 64
7.2 Maintenance Schedule 68
7.3 Removing the Power Stage for Service 69
7.4 Warranty Service Procedure 70
8.0 Warranty 71
9.0 Technical Specications 72

4Important Safety Instructions
SAVE THESE INSTRUCTIONS
This manual contains important safety, installation and operating instructions for the
TriStar MPPT 600V solar controller.
The following symbols are used throughout this manual to indicate potentially dangerous condi-
tions or mark important safety instructions:
WARNING:
Indicates a potentially dangerous condition. Use extreme caution when performing
this task.
!CAUTION:
Indicates a critical procedure for safe and proper operation of the controller.
NOTE:
Indicates a procedure or function that is important for the safe and proper operation
of the controller.
AVERTISSEMENT :
Indique une condition potentiellement dangereuse. Faites preuve d’une prudence
extrême lors de la réalisation de cette tâche.
!PRUDENCE :
Indique une procédure critique pour l’utilisation sûre et correcte du contrôleur.
REMARQUE :
Indique une procédure ou fonction importante pour l’utilisation sûre et correcte du
contrôleur.
Safety Information
• Read all of the instructions and cautions in the manual before beginning installation.
• There are no user serviceable parts inside the TriStar MPPT 600V. Do not disassemble or
attempt to repair the controller.
• Disconnect all sources of power to the controller before installing or adjusting the
TriStar MPPT 600V.
• There are no fuses or disconnects inside the TriStar MPPT 600V. Do not attempt to repair.
• Install external fuses/breakers as required.
Informations de Sécurité
• Liseztouteslesinstructionsetlesavertissementsgurantdanslemanuelavantdecom-
mencer l’installation.
• Le TriStar MPPT ne contient aucune pièce réparable par l’utilisateur. Ne démontez pas ni
ne tentez de réparer le contrôleur.
• Déconnectez toutes les sources d’alimentation du contrôleur avant d’installer ou de régler
le TriStar MPPT.
• Le TriStar MPPT ne contient aucun fusible ou interrupteur. Ne tentez pas de réparer.
• Installez des fusibles/coupe-circuits externes selon le besoin.
1.0 Important Safety Instructions

5TriStar MPPT 600V Operator’s Manual
Installation Safety Precautions
WARNING:
This unit is not provided with a GFDI device. This charge controller must be used with an
external GFDI device as required by the Article 690 of the National Electrical Code for
the installation location.
• Mount the TriStar MPPT 600V indoors. Prevent exposure to the elements and do not allow
water to enter the controller.
• Install the TriStar MPPT 600V in a location that prevents casual contact. The
TriStar MPPT 600V heatsink can become very hot during operation.
• Use insulated tools when working with batteries.
• Avoid wearing jewelry during installation.
• The battery bank must be comprised of batteries of same type, make, and age.
• Do not smoke in the vicinity of the battery bank.
• Power connections must remain tight to avoid excessive heating from a loose connection.
• Use properly sized conductors and circuit interrupters.
• Thegroundingterminalislocatedinthewiringcompartmentandisidentiedbythesym-
bol below.
Ground Symbol
• This charge controller is to be connected to DC circuits only. These DC connections are
identiedbythesymbolbelow.
Direct Current Symbol
TheTriStarMPPT600Vcontrollermustbeinstalledbyaqualiedtechnicianinaccordancewith
electrical regulations of the country where the product is installed.
A means of disconnecting all power supply poles must be provided. These disconnects must be
incorporatedinthexedwiring.UsingtheTriStarMPPTHVgroundterminal(inthewiringcom-
partment), a permanent and reliable means to the earth ground must be established.
The grounding conductor must be secured against any accidental detatchment.
The knock-outs in the TriStar MPPT 600V wiring compartment must protect wires with conduit or
rings.

6Important Safety Instructions
Précautions de Sécurité D’installation
AVERTISSEMENT:
L’appareil n’est pas fourni avec un dispositif GFDI. Ce contrôleur de charge doit être
utilisé avec un dispositif GFDI externe tel que requis par l’Article 690 du Code électrique
national de l’emplacement de l’installation.
• MontezleTriStarMPPTHVàl’intérieur.Empêchezl’expositionauxélémentsetlapéné-
tration d’eau dans le contrôleur.
• Utilisez des outils isolés pour travailler avec les batteries.
• Évitez le port de bijoux pendant l’installation.
• Legroupedebatteriesdoitêtreconstituédebatteriesdumêmetype,fabricantetâge.
• Nefumezpasàproximitédugroupedebatteries.
• Les connexions d’alimentation doivent rester serrées pour éviter une surchauffe excessive
d’une connexion desserrée.
• Utilisez des conducteurs et des coupe-circuits de dimensions adaptées.
• Labornedemiseàlaterresetrouvedanslecompartimentdecâblageetestidentiée
par le symbole ci-dessous.
•Cecontrôleurdechargenedoitêtreconnectéqu’àdescircuitsencourantcontinu.Ces
connexionsCCsontidentiéesparlesymboleci-dessous.
LecontrôleurTriStarMPPT600Vdoitêtreinstalléparuntechnicienqualiéconformémentaux
règlementations électriques du pays où est installé le produit.
Unmoyend’assurerladéconnexiondetouslespôlesdel’alimentationdoitêtrefourni.Cette
déconnexiondoitêtreincorporéedanslecâblagexe.
Àl’aidedelabornedemiseàlamasseduTriStarMPPT600V(danslecompartimentde
câblage),unmoyenpermanentetabledemiseàlaterredoitêtrefourni.Laxationdelamise
àlaterredoitêtrexéecontretoutdesserrageaccidentel.
Lesouverturesd’entréeaucompartimentdecâblageduTriStarMPPT600Vdoiventêtreproté-
gées avec conduit ou anneaux.

7TriStar MPPT 600V Operator’s Manual
WARNING: A battery can present a risk of electrical shock or burn from large amounts of short-
circuitcurrent,re,orexplosionfromventedgases.Observeproperprecautions.
 CAUTION:Whenreplacingbatteries,useproperlyspeciedsizes,types,andratingsbased
on application and system design.
CAUTION: Proper disposal of batteries is required. Refer to local regulations or codes for
requirements.
AVERTISSEMENT: Une batterie peut présenter a risque de choc électrique ou de brûlure de
grandes quantités de court-circuit curlouer, incendie ou explosion de ventilé gaz.
PRUDENCE: Observer les précautions adéquates. Quand remplacer l'utilisation de piles cor
rectement spécifié tailles, types, et cotes fondées sur l'application et conception des systèmes.
PRUDENCE: Élimination appropriée des batpiles est nécessaire. Se ré férer au local
règlements ou codes pour exigentments.
About this Manual:
This manual provides detailed installation and usage instructions for the TriStar MPPT 600V con-
troller.Onlyqualiedelectriciansandtechnicianswhoarefamiliarwithsolarsystemdesignand
wiring practices should install the TriStar MPPT 600V. The usage information in this manual is
intended for the system owner/operator.

8TriStar MPPT 600V Operator’s Manual
Getting Started2.0
2.1 Overview
Thank you for selecting the TriStar MPPT 600V solar charge controller with TrakStarTM MPPT
Technology. The TriStar MPPT 600V (TS-MPPT-60-600V) is an advanced maximum power point
trackingsolarbatterycharger.Thecontrollerfeaturesasmarttrackingalgorithmthatndsand
maintains operation at the solar array peak power point, maximizing energy harvest.
The TriStar MPPT 600V battery charging process has been optimized for long battery life and
improved system performance. Self-diagnostics and electronic error protections prevent damage
when installation mistakes or system faults occur. The controller also features eight (8) adjustable
settings switches, several communication ports, and terminals for remote battery temperature
and voltage measurement.
Please take the time to read this operator’s manual and become familiar with the controller. This
will help you make full use of the many advantages the TriStar MPPT 600V can provide for your
PV system.
2.2 Regulatory Information
NOTE:
This section contains important information for safety and
regulatory requirements.
TheTriStarMPPT600Vcontrollershouldbeinstalledbyaqualiedtechnicianaccordingtothe
electrical rules of the country in which the product will be installed.
TriStar MPPT 600V controllers comply with the following EMC standards:
• Immunity:EN61000-6-2:2005
• Emissions:EN55022:22007withA1andA3ClassB1
• Safety:EN60335-1andEN60335-2-29(batterychargers)
A means shall be provided to ensure all pole disconnection from the power supply. This discon-
nectionshallbeincorporatedinthexedwiring.
Using the TriStar MPPT 600V grounding terminal (in the wiring compartment), a permanent and
reliable means for grounding shall be provided. The clamping of the earthing shall be secured
against accidental loosening.
The entry openings to the TriStar MPPT 600V wiring compartment shall be protected with conduit
or with a bushing.
FCC requirements:
This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This
device may not cause harmful interference, and (2) this device must accept any interference received, including
interferencethatmaycauseundesiredoperation.ChangesormodicationsnotexpresslyapprovedbyMorningstar
for compliance could void the user’s authority to operate the equipment.

9TriStar MPPT 600V Operator’s Manual
NOTE:
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15
of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a resi-
dential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and
usedinaccordancewiththeinstructionmanual,maycauseharmfulinterferencetoradiocommunication.However,
there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment on and off, the user
is encouraged to try to correct the interference by one or more of the following measures:
• Re-orient or re-locate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numerique de la classe B est conforme a la norme NMB-003 du Canada.
2.3 Versions and Ratings
There are two versions of TriStar MPPT 600V controller:
TS-MPPT-60-600V-48
• Maximum 60 amps continuous battery current
• 48 volt DC systems
• Maximum 600 volt DC solar input voltage
• RS-232, EIA-485, MeterBusTM, and Ethernet communication ports
TS-MPPT-60-600V-48-DB
• Maximum 60 amps continuous battery current
• 48 volt DC systems
• Maximum 600 volt DC solar input voltage
• RS-232, EIA-485, MeterBusTM, and Ethernet communication ports
• Includes enhanced wiring Disconnect Box (DB) with PV and battery disconnect switches

10 Getting Started
2.4 Features
The features of the TS-MPPT-60-600V-48 model are shown in Figure 2-1 below. An explanation
of each feature is provided.
1
15
14
13
3
4
5
6
7
2
17
16
8
12
11
9
10
Figure 2-1. TriStar MPPT 600V Features

11TriStar MPPT 600V Operator’s Manual
1 - Heatsink
Aluminum heatsink to dissipate controller heat (the TriStar MPPT 600V is 100% passively cooled for reliability)
2 - LED Indicators
Three state of charge (SOC) LED indicators show charging status and controller faults
3 - Settings Switches
Eight(8)settingsswitchestocongureoperationoftheTriStarMPPT600V
4 - Battery Positive Terminal (red)
Power connection for Battery (+)
5 - MeterBusTM Port
RJ-11 socket for Morningstar MeterBusTM network connections
6 - Ethernet Port
RJ-45 socket for LAN/internet connections
7 - Serial RS-232 Port
9-pin serial connector (female)
8 - EIA-485 Port
Four (4) position screw terminal for EIA-485 bus connections
9 - Ground Terminals (2 total)
A chassis ground terminal for system grounding
10 - Blank Meter Cover (secured with 4 screws)
A plate that covers the mounting location for the optional digital meter (Model: TS-M-2-600V)
11 - Battery Negative Power Terminal
Negative terminal for negative battery cable termination
12 - Remote Temperature Sensor Terminals
Connection point for a Morningstar RTS to remotely monitor battery temperature
13 - Wiring Box Cover
Sheet metal wiring box cover protects power connections
14 - Solar Terminal Bridge (yellow)
Isolates high voltage PV wiring from low voltage wiring area
15 - Solar Terminals
Power connections for Solar (+) and (-)
16 - Battery Voltage Sense Terminals
Terminals for battery voltage input provide accurate battery voltage measurement
17 - Push-button Switch
Manually reset from an error or fault, also used to start/stop a manual equalization.

12 Getting Started
The features of the TS-MPPT-60-600V-48-DB model are shown in Figure 2-2 below. An explana-
tion of each feature is provided.
1
2
4
3
5
6
7
8
9
10
15
12
16
17
11
18
20
13
14
21 22
19
Figure 2-2 TriStar MPPT 600V-DB Features

13TriStar MPPT 600V Operator’s Manual
1 - Heatsink
Aluminum heatsink to dissipate controller heat (the TriStar MPPT 600V is 100% passively cooled for reliability)
2 - Battery Negative Power Terminal
Power connection for (-) battery cable termination
3 - Battery Positive Power Terminal (red)
Power connection for (+) battery cable termination
4 - Settings Switches
Eight(8)settingsswitchestocongureoperationoftheTriStarMPPT600V-DB
5 - MeterBusTM Port
RJ-11 socket for Morningstar MeterBusTM network connections
6 - Ethernet Port
RJ-45 socket for LAN/internet connections
7 - Serial RS-232 Port
9-pin serial connector (female)
8 - EIA-485 Port
Four (4) position screw terminal for EIA-485 bus connections
9 - Battery Terminal Blocks
Power connection points for Battery (+) and (-)
10 - Grounding Terminals
Chassis terminals for system grounding
11 - Solar Terminal Blocks (one shown)
Power connection points for solar (+) and (-)
12 - Auxilliary DIN Rail Mounts
13 - Battery Breaker
Battery (+) disconnect point
14 - Grounding Terminal
A chassis terminal for system grounding
15 - Solar Disconnect Switch
Solar (+) disconnect switch
16 - Solar Terminal Bridge (yellow)
Isolates high voltage PV wiring from low voltage wiring area
17 - Solar Negative Power Terminal
Pre-wired connection point for (-) solar cable termination
18 - Solar Positve Power Terminal
Pre-wired connection point for (+) solar cable termination
19 - Battery Voltage Sense Terminals
Terminals for battery voltage input provide accurate battery voltage measurement
20 - Push-button Switch
Manually reset from an error or fault, also used to start/stop a manual equalization.
21 - Remote Temperature Sensor Terminals
Connection point for a Morningstar RTS to remotely monitor battery temperature
22 - LED Indicators
Three state of charge (SOC) LED indicators show charging status and controller faults

14 Getting Started
2.5 Optional Accessories
The accessories described below are available for purchase separately from your authorized
Morningstar dealer. Please see the individual product manuals for installation and operation
details.
Ground Fault Protection Device (GFPD-600V)
The GFPD detects solar array ground faults and disconnects the solar circuit as required by the
U.S. National Electrical Code. The GFPD unit is mounted in a wiring box and includes wiring
hardware needed to connect the unit to a TriStar MPPT 600V or TriStar MPPT 600V-DB.
TriStar Meter 2-600V; TriStar Remote Meter 2 (Models: TS-M-2-600V; TS-RM-2)
The TS-M-2-600V mounts directly on the TriStar MPPT 600V controller, replacing the blank
metercoveronthewiringboxlid.TheTS-RM-2canbeushmountedinawallorintoastandard
duplex (2-gang) electrical box. A 2 x 16 character display shows system operating information,
error indications, and self-diagnostic information. Four (4) buttons make navigating the meter
menus easy.
TriStar meters connect to the RJ- 11 MeterBusTM port on the TriStar MPPT 600V. One (1) meter
can display select full system information when multiple TriStar MPPT 600V or other TriStar con-
trollers are connected via a MeterBusTM network.
Meter Hub (HUB-1)
A Morningstar MeterBusTMnetworkwithmultiplecontrollersrequiresaMeterHubforelectrical
isolation.TheHUB-1allowscommunicationbetweenMeterBusTM compatible Morningstar prod-
ucts, including the TriStar MPPT 600V controller. DIN rail compatible. See section 5.2 for more
details.

15TriStar MPPT 600V Operator’s Manual
Relay Driver (RD-1)
The Relay DriverTM accessory enables the TriStar MPPT 600V to control external devices. Four
(4)relaycontrolportscanbecongured(invariouscombinations)toperformthefollowingtasks:
• generatorcontrol(2-,3-,and4-wirecongurations)
• dry contacts for alarms and other signals
• advanced load control
• vent fan control
• DIN rail compatible or surface mount
For more information on the Relay Driver, visit our website at www.morningstarcorp.com or in-
quire with your local Morningstar dealer.
EIA-485 / RS-232 Communications Adapter (RSC-1)
Connect one or more TriStar MPPT 600V controllers to a PC or to other serial devices using the
EIA-485 adapter. The adapter converts an RS-232 serial interface to EIA-485 compliant bus sig-
nals. An LED shows network activity and errors. DIN rail compatible.

16 Installation
3.1 General Information
The mounting location is important to the performance and operating life of the controller. The
environment must be dry and protected from water ingress. If required, the controller may be
installedinaventilatedenclosurewithsufcientairow.NeverinstalltheTriStarMPPT600Vin
a sealed enclosure. The controller may be mounted in an enclosure with sealed batteries, but
neverwithvented/oodedbatteries.Batteryfumesfromventedbatterieswillcorrodeanddestroy
the TriStar MPPT 600V circuits.
Multiple TriStars can be installed in parallel on the same battery bank to achieve higher charging
current. Additional parallel controllers can also be added in the future.
WARNING: Equipment Damage or Risk of Explosion
Never install the TriStar MPPT 600V in an enclosure with vented/ooded batteries.
Battery fumes are ammable and will corrode and destroy the TriStar MPPT 600V
circuits.
!
CAUTION: Equipment Damage
When installing the TriStar MPPT 600V in an enclosure, ensure sufcient ventilation.
Installation in a sealed enclosure will lead to over-heating and a decreased product
lifetime.
AVERTISSEMENT: Endommagement de l’équipement ou risque d’explosion
N’installez jamais le TriStar MPPT dans une enceinte avec des batteries à évent/à
électrolyte liquide. Les vapeurs des batteries sont inammables et corroderont et
détruiront les circuits du TriStar MPPT.
!
PRUDENCE: Endommagement de l’équipement
Assurez une ventilation sufsante en cas d’installation du TriStar MPPT dans une
enceinte. L’installation dans une enceinte hermétique entraîne une surchauffe et une
réduction de la durée de vie du produit.
The installation is straight-forward, but it is important each step is done correctly and safely. A
mistake can lead to dangerous voltage and current levels. Be sure to carefully follow each in-
struction in this section. READ ALL INSTRUCTIONS FIRST before beginning installation.
The installation instructions are for installation of a negative grounded system. U.S National Elec-
trical Code (NEC) requirements are noted on occasion for convenience, however the installer
should have a complete understanding of NEC and UL requirements for photovoltaic installa-
tions.
Installation3.0

17TriStar MPPT 600V Operator’s Manual
Recommended Tools:
• Wire strippers
• Wire cutters
• #2 & #0 Phillips screwdriver
• slotted screwdrivers
• Pliers
• Drill3/32” (2.5 mm) drill bit
• Level
• hack saw (cutting conduit)
3.2 Wiring Zones
The 600V solar circuits must be separated from the low voltage battery circuits and commu-
nication wiring within the wiring box. Figure 3-1 below shows the high voltage and low voltage
zones (shaded) within the wiring box. There is overlap in the zones as pictured because the re-
movable wiring divider separates the high voltage solar wiring and low voltage wiring. Solar high
voltage wiring should be routed below the removable wiring divider.The yellow Solar Terminal
Bridgemustbeproperlyttedinplacebeforemakingthesolarpowerterminalconnections.
The battery wiring and all communication cables must only be routed within the low voltage
wiring zone. After the solar wiring is installed, the wiring divider should be secured in place, and
the battery cables routed above the divider. Detailed installation steps are provided in the follow-
ing sections.
High Voltage Wiring
Below the Removable
Wiring Divider
Figure 3-1. Low voltage and high voltage wirin
Low Voltage Wiring
Above the Removable
Wiring Divider
g zones (shaded areas)

18 Installation
3.3 Conduit Knock-Outs and Wire Routing
Knock-outs are provided for routing cables through conduit or wire glands. Table 3-1 details the
knockout sizes and quantity provided on the TriStar MPPT 600V wiring box. Knockout placement
dimensions are on the inside front cover. Figures 3-2 to 3-5 show knock-out types.
The TriStar MPPT 600V wiring box provides continuous and separate paths for high voltage
(solar) and low voltage (battery & COM) wiring routing. These allow wiring to pass between
TriStar MPPT 600V controllers that are mounted side-by-side without the need for external con-
duittubing.Table3-1identiesthepass-throughknock-outswhichmaybeusedforthispurpose.
Figure 3-6 shows the routing of the high voltage and low voltage wiring paths.
2
3
4
1
56
Figure 3-2. Knock-outs, left view
2
1
4
56
Figure 3-3. Knock-outs, right view

19TriStar MPPT 600V Operator’s Manual
7
8
9
10
Figure 3-4. Knock-outs, bottom view
12
11
Figure 3-5. Knock-outs, back view
Item Quantity Trade Size Hole Dimension Circuit(s) Pass-Through?
1 2 (Concentric) 1” & 3/4” 1.36“ (34.5 mm) / 1.09” (27.8 mm) Solar (high voltage) YES
2 2 (Concentric) 1-1/4 “ & 1 “ 1.72” (43.7 mm) / 1.36“ (34.5 mm) Battery (low voltage) YES
3 4 Fits select MC-style
Solar connectors ** 18 mm Solar (high voltage) NO
4 3 1/2” or M20 7/8” (22.2 mm) Solar (high voltage) NO
5 1 1/2” or M20 7/8” (22.2 mm) Communication YES
6 1 1.36“ (34.5 mm) Communication YES
7 2 (Concentric) 1-1/4 “ & 1 “ 1.72” (43.7 mm) / 1.36“ (34.5 mm) Battery (low voltage) NO
8 2 (Concentric) 1” & 3/4” 1.36“ (34.5 mm) / 1.09” (27.8 mm) Solar (high voltage) NO
9 4 1/2” or M20 0.88” (22.2 mm) Solar (high voltage) NO
10 4 1/2” or M20 0.88” (22.2 mm) Battery (low voltage) NO
11 2 3/4” 1.09” (27.8 mm) Solar (high voltage) NO
12 2 1” 1.36“ (34.5 mm) Battery (low voltage) NO
** Solar connector mounting hole diameters vary. Wieland Solar DC connectors recommended.
Table 3-1. Knock-out sizes

20 Installation
Solar Wiring
Battery Wiring
Communication
Wiring
Figure 3-6. Wiring pass-through paths between multiple controllers
3.4 Controller Installation (TS-MPPT-60-600V-48 and
TS-MPPT-60-600V-48-DB)
Step 1 - Remove the Wiring Box Cover
CAUTION: Shock Hazard
Disconnect all power sources to the controller before removing the wiring box cover. Never
remove the cover when voltage exists on any of the TriStar MPPT 600V power connections.
PRUDENCE : Risque de décharge électrique
Déconnectez toutes les sources d’alimentation du contrôleur avant d’enlever le couvercle
du boîtier de câblage. Ne retirez jamais le couvercle en présence de tension sur une des
connexions d’alimentation du TriStar MPPT 600V.
Use a #2 Phillips screw driver to remove the four (4) screws that secure the wiring box cover as
showningure3-7below.