YASKAWA PVI 36TL Installation And Operation Manual

PVI 36TL

INSTALLATION AND OPERATION MANUAL

Revision H

© 2017, Yaskawa – Solectria Solar

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 2 of 120

IMPORTANT REGISTRATION AND

WARRANTY INFORMATION

For warranty to become active, this inverter
must be registered. To activate warranty and
register inverter, please visit the link below.

www.solectria.com/registration

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 3 of 120

Before You Start…

This manual contains important information regarding installation and safe operation
of the PVI 36TL. Be sure to read this manual carefully before using the inverter.

Thank you for choosing a Solectria grid-tied PV Inverter. This PV Inverter is high
performance and highly reliable product specifically designed for the North American
Solar market.

If you encounter any problems during installation or operation of this unit, first check
the user manual before contacting your local dealer or supplier. This user manual is
applicable for the following model: PVI 36TL.

Instructions inside this user manual will help you solve most installation and
operation difficulties. Contact your local supplier if the problem still exists.
Please keep this user manual on hand for quick reference.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 4 of 120

IMPORTANT SAFETY INSTRUCTIONS

SAVE THESE INSTRUCTIONS

Please read this user manual carefully before product installation. Solectria reserves
the right to refuse warranty claims for equipment damage if the user fails to install the
equipment according to the instructions in this manual.

Warnings and Symbols in this Document

Markings on the Product

HIGH VOLTAGE:

This inverter works with high voltages. All work on the product must
only be performed as described in this document.

HOT SURFACE:

The equipment is designed to meet international safety standards,
but surfaces can become hot during operation. Do not touch the
heat sink or peripheral surfaces during or shortly after operation.

EARTH GROUND:

This symbol marks the location of grounding terminal, which must
be securely connected to the earth through the PE (Protective Earth)
cable to ensure operational safety.

DANGER:

DANGER indicates a hazardous situation which, if not avoided,
will result in death or serious injury.

WARNING:

WARNING indicates a hazardous situation which, if not avoided,
could result in death or serious injury.

CAUTION:

CAUTION indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.

NOTICE:

NOTICE indicates a hazardous situation which, if not avoided,
could result in equipment working abnormally or property loss.

INSTRUCTION:

INSTRUCTION indicates important supplementary information
or provides skills or tips that can be used to help you solve a
problem or save you time.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 5 of 120

WARNING:

All of the installation and wiring connections should be performed
by qualified technical personnel. Disconnect the inverter from PV
modules and the AC Grid before maintaining and operating the
equipment.

Follow all local, national or country specific guidelines for electrical
safety.

DANGER:

Please disconnect the inverter from the AC grid and PV modules
before opening the equipment. Make sure hazardous high voltage
and energy inside the equipment has been discharged.
Do not operate or maintain the inverter until at least 5 minutes has
passed after disconnecting all sources from DC and AC sides.

CAUTION:
PVI 36TL inverter is approx. 66kg (145 pounds) including the wiring
box.

Please ensure the mounting bracket is properly installed before
hanging the inverter on the bracket.

INSTRUCTION:

Please check with your local electricity supply company before
selecting a grid standard. If the inverter is operated with a wrong
grid standard, the electricity supply company may cancel the
interconnection agreement.
Putting the inverter into operation before the overall system
complies with the national rules and safety regulation of the
application is not permitted.

DANGER!
Danger to life due to fire or explosion:

Despite careful construction, electrical devices can cause fires.

-Do not mount the inverter on flammable construction materials.

-Do not mount the inverter in areas where highly flammable
materials are stored.

-Do not mount the inverters in areas with a risk of explosion

SAVE THESE INSTRUCTIONS

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 6 of 120

BEFORE YOU START… ........................................................................ 3

IMPORTANT SAFETY INSTRUCTIONS .......................................................... 4

1.0: OVERVIEW .......................................................................................... 9

1.1 INVERTER FOR GRID-TIED PV SYSTEMS .............................................. 9

1.2 PRODUCT FEATURES ....................................................................... 9

1.3 PRODUCT PROTECTION FUNCTIONS ................................................. 10

1.4 CIRCUIT STRUCTURE DESIGN .......................................................... 10

1.5 APPEARANCE DESCRIPTION ............................................................ 11

1.6 ANTI ISLANDING ........................................................................... 12

1.7 DC GROUND FAULT PROTECTION .................................................... 12

1.8 SURGE SUPPRESSION .................................................................... 12

1.9 DC ARC FAULT DETECTION ............................................................. 12

2.0: INSTALLATION ................................................................................... 12

2.1 RECOMMENDATIONS BEFORE INSTALLATION ...................................... 14

2.2 MECHANICAL INSTALLATION ........................................................... 15

2.3 ELECTRICAL INSTALLATION .............................................................. 26

2.3.1 DC Connection .............................................................................28

2.3.2 AC and Ground Connection .........................................................37

2.4 INVERTER COMMUNICATION CONNECTIONS ...................................... 41

2.4.1 Third Party Monitoring Systems Modbus Connections ...............43

2.4.2 SolrenView Data Logger Modbus Connections ...........................48

2.4.3 Preparing the Inverter for Modbus Communications .................58

2.4.4 Preparing the SolrenView Logger ...............................................59

2.4.5 Connecting Revenue Grade Meter to the SolrenView Logger .....61

2.4.6 Dry Contact Communication .......................................................65

3.0: COMMISSIONING .............................................................................. 69

3.1 COMMISSIONING CHECKLIST .......................................................... 69

3.1.1 Mechanical Installation ...............................................................69

3.1.2 Cable Connections .......................................................................69

3.1.3 Electrical Check ...........................................................................69

3.2 COMMISSIONING STEPS................................................................. 69

4.0: USER INTERFACE ............................................................................... 72

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 7 of 120

4.1 DESCRIPTION OF LCD .................................................................... 72

4.2 OPERATION STATE ........................................................................ 73

4.3 INTERFACE TYPES .......................................................................... 73

4.4 MENU FUNCTIONS ........................................................................ 75

4.4.1 Operation information ................................................................75

4.4.2 Alarm ..........................................................................................77

4.4.3 History .........................................................................................78

4.4.4 System Configuration ..................................................................79

4.4.5 Power dispatch............................................................................81

4.4.6 System Protection Parameters Setup ..........................................81

4.4.7 System control parameters .........................................................83

4.4.8 Arc Fault Current Interruption .....................................................89

5.0: OPERATION ....................................................................................... 91

5.1 START-UP .................................................................................... 91

5.2 SHUTDOWN ................................................................................ 91

5.3 OPERATION MODE ....................................................................... 91

5.4 GRID-TIED POWER GENERATION ..................................................... 93

6.0: MAINTENANCE AND DE-INSTALLATION ............................................. 94

6.1 FAULT SHUTDOWN AND TROUBLESHOOTING ..................................... 94

6.1.1 LED Fault and Troubleshooting ...................................................94

6.1.2 LCD fault and troubleshooting ....................................................94

6.2 PRODUCT MAINTENANCE .............................................................. 99

6.2.1 Check the Electrical Connection ..................................................99

6.2.2 Clean the Air Vent Filter ........................................................... 100

6.2.3 Replace Cooling Fans ............................................................... 100

6.2.4 Replace the Inverter ................................................................. 102

6.3 UNINSTALLING THE INVERTER ....................................................... 104

7.0: PRODUCT WARRANTY AND RMA POLICY ........................................ 105

8.: TECHNICAL DATA ............................................................................... 106

9.0: ACCESSORY OPTIONS ...................................................................... 110

9.1 FUSE BYPASS ...................................................................... 110

9.2 SHADE COVER .................................................................... 111

9.3 AC & DC DISCONNECT COVERS ............................................. 114

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 8 of 120

10.0: APPENDICES: ................................................................................. 115

APPENDIX A – INSTRUCTION OF INVERTER SELECTION ............................ 115

APPENDIX B – PVI 36TL DATASHEET ................................................... 119

APPENDIX C – STRING SIZING TOOL .................................................... 119

APPENDIX D – CONTACT INFORMATION ............................................... 119

APPENDIX E – AUTHORIZED DISTRIBUTORS ........................................... 119

APPENDIX F – UL 1741 / UL 1699B/ IEEE 1547 / CSA 22.2#107.1

AUTHORIZATION TO MARK ................................................................ 120

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 9 of 120

1.0: Overview

1.1 Inverter for Grid-Tied PV Systems

The PVI 36TL inverter is suitable for use for commercial and large scale PV
grid-tied systems. A system is generally made up of PV modules, DC power
distribution equipment, PV inverter and AC power distribution equipment (Figure 1.1).
The inverter converts DC from PV modules to AC with the same frequency and phase
as the AC grid. All or part of the AC power is supplied to local loads, and the surplus
power is supplied to the electricity grid.

DC power

distribution
equipments

AC Grid

Bidirectional

electric meter

AC power
distribution
equipments

Figure 1.1 - Grid-Tied PV System

1.2 Product Features

 High Conversion Efficiency: Advanced 3-level conversion technology; Max.
efficiency: 98.4%；CEC efficiency: 98.0%
 Strong Grid Adaptability: 4 grid standards applicable; Reactive power

adjustable; Power Factor (PF) value: ±0.8, Remote Curtailment
 Flexible Communication: Supports standard Modbus communications to
ensure compatibility with 3rd party monitoring and control systems
 Wide DC Input Voltage Range: Operating DC Input Voltage Range:
200-950Vdc; Max DC input voltage: 1000V

 Long Service Life: Uses thin-film capacitors to extend inverter’s service life
 2 MPPTs: Dual and independent MPPT (Maximum Power Point Tracking)

enable maximum design flexibility and optimize energy harvest over the life of the
system
 High Protection Degree: NEMA 4X protection degree meets the needs of both
indoor and outdoor use;
 Intelligent Integration: Embedded DC/AC switches and up to 10 fused string
inputs eliminates the need for external combiner boxes and simplifies installation.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 10 of 120

1.3 Product Protection Functions

 Reverse polarity protection of DC input
 Short circuit protection
 Arc-Fault Circuit Interruption
 Anti-islanding protection
 Input and output over-voltage protection
 Input over-current protection
 Monitoring of DC input insulation against ground
 Monitoring of AC output voltage and frequency
 Monitoring of Leakage current against ground
 Monitoring of DC injection from AC output
 Monitoring of ambient temperature
 Monitoring of IGBT module temperature

1.4 Circuit Structure Design

The basic schematic diagram of PVI 36TL inverter is shown in Figure 1.2.
The input of PV modules passes through surge protection circuitry, DC EMI wave filter,
and the front-end boost circuitry to achieve maximum power tracking and boost up
voltages. The output of the inverter converts the DC voltage to 3-phase AC voltage.
The high frequency AC components are removed with a wave filter. Then the 3-phase
AC voltage is passed through two-stage relays and EMI wave filter to produce high
quality AC power.

Figure 1.2 - Schematic Diagram of PVI 36TL Inverter

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 11 of 120

1.5 Appearance Description

Figure 1.3 - Sketch of PVI 36TL Inverter

Main Items of the Inverter:

1) Main inverter section

2) Wiring box of the inverter

3) Mounting bracket

4) External cooling fans

5) LED indication lights

6) LCD

7) Key buttons

8) DC switch: DC power on/off

9) AC switch: AC power on/off

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 12 of 120

1.6 Anti Islanding

This inverter includes Active Anti-Islanding detection as required by

UL1741/IEEE1547. The inverter will automatically make small variations in reactive

power output in order to detect a possible islanding condition. If the grid is stable,

these small variations will have negligible effects on system voltage and frequency.

However, in an islanded condition the small amount of reactive power changes will

force the system voltage or frequency to change significantly, which will trigger the

inverter to shut down.

1.7 DC Ground Fault Protection

The PVI 36TL includes residual current detection as part of the DC ground fault

detection method as required by UL1741. If there is a ground fault in the array, the

ground fault detection technology will detect the array leakage current. The

inverter will shut down if the leakage current exceeds 500mA.

1.8 Surge Suppression

 "Standard 1.2/50 μs - 8/20 us Combination Wave"
 "Standard 0.5 μs - 100 kHz Ring Wave"

1.9 DC Arc Fault Detection

The PVI 36TL includes DC Arc fault detection compliant with UL 1699B. The inverter

detects electrical noise that typically accompanies a DC series arc. The inverter will

shut down should the arc fault sensor detect a series arc. See section “Arc fault

current interruption” for more details.

2.0: Installation

Below is the installation procedure for the inverter. Please read carefully and install the
product step-by-step.
Before installation, please check that the following items are included in the package:

STANDARD WAVEFORM PEAK VALUES

Surge Category

Ring Wave

Combination Wave

B

6 kV/0.50 kA

6 kV/3 kA

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 13 of 120

Table 2.1 - Main Items

No.

Item

Qty

Note

(1)

Main inverter
section

1 (2)

Wiring box

1 (3)

Mounting bracket

1

Upon which inverter is hung and
mounted onto a wall

(4)

User manual

1

Installation and operation manual

(5)

Accessory kit

1

Contains all necessary accessories

The (5) Accessory kit contains items listed below:

Table 2.2 - Accessories

No.

Item

Qty

Note

(1)

M8 Expansion tubes

8

For mounting bracket

(2)

M8×25 assembling
bolts

8

For mounting bracket

(3)

M6 X16 screw

6

For wiring box and main section; 2
spare parts

(4)

M5X10 screw

8

8 for mounting bracket and inverter,
external ground connection;

(5)

M5 flange nut

2

For internal ground stud connection; 1
spare part

(6)

Lifting eye nut M10

2

For lifting the main section

(7)

OT type terminal

2

For ground connection
(8)

Pre-insulated end

5

For AC output cables, 1 spare part

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 14 of 120

ferrule for AC side
(4 AWG)

(9)

Pre-insulated end
ferrule for grounding
(8AWG)

8

For AC ground cables

(10)

Pre-insulated end
ferrule for DC side
(10 AWG)

20

For DC input cables

(11)

RJ45 connecter

4

For RS-485 or Ethernet communication,
2 spare parts

(12)

5 pin connector

1

For RS-485 communication

(13)

3 pin connector

1

For dry contact communication

2.1 Recommendations before Installation

 Check that the product environmental specifications (protection degree,
operating temperature range, humidity and altitude, etc.) meet the requirements of
the specific project location;

 Make sure that the AC grid voltage is within the normal range.
 Ensure that the local electricity supply authority has granted permission to

connect to the grid.
 Installation personnel must be qualified electricians or people who have

received professional training.
 Sufficient space according to Figure 2.3 should be provided to allow the

inverter cooling system to operate normally.

 Install the inverter away from flammable and explosive substances.
 Avoid installing the inverter in locations that exceed the temperature limits

specified in the inverter data sheet to limit undesirable power loss.

 Do not install the inverter near the electromagnetic source which can

compromise the normal operation of electronic equipment.

INSTRUCTION:

The items in the accessory kit table above are for the standard
configuration. The accessories may vary if optional parts are purchased.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 15 of 120

2.2 Mechanical Installation

1) Dimensions

Figure 2.1 - PVI 36TL Inverter Dimensions

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 16 of 120

2) Installation Method (see Figure 2.2):

Make sure that the mounting structure (wall, rack, etc.) is suitable to support
the inverter weight. Follow the mounting guidelines below:

(a) If the location permits, install the inverter vertically.
(b) If the inverter cannot be mounted vertically, it may be tilted backward but

no lower than 15 degrees from horizontal.

The shade cover option must be purchased and installed for any
installation angles of 75° or less.

(c) Do NOT mount the inverter leaning forward.
(d) Do NOT mount the inverter in a horizontal position (<15 degrees).
(e) Do NOT mount the inverter upside down.

Figure 2.2 - Inverter Mounting

WARNING: Do not install the inverter tilted forward, lying on its back, or upside

down as shown in Figure 2.2 c, d and e.

WARNING: Shade covers are required for inverters installed at angles 75° or
less.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 17 of 120

3) Installation Space Requirement (see Figure 2.3):

The distances between the inverters or the surrounding objects should meet
the following conditions:

Figure 2.3 - Inverter Wall Mounting Specifications

NOTICE:

The spacing between two adjacently mounted inverters should be
≥500mm (19.7 inches). Ensure that the air space around the inverter is
well ventilated.

NOTICE:

The installation clearance between two inverters needs to be increased
to 30 in. when the ambient temperature is higher than 45°C.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 18 of 120

Figure 2.4 - Inverter Pillar Mounting Specifications

7.9in

¡ Ý200mm

11.8in

¡ Ý300mm

23.6in

¡ Ý600mm

11.8in

¡ Ý300mm

11.8in

¡ Ý300mm

INSTRUCTION:

If the inverter is installed on Unistrut or the array racking (instead of
solid wall), the space from the bottom of one inverter to the top of the
inverter below may be as small as 4in (100mm).

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 19 of 120

4) Mounting the Inverter Onto the Bracket

(1) Mark the 8 holes on the bearing surface for mounting the bracket as shown
in Figure 2.5;

813mm(min.)

425mm(min)

250mm

550mm(min.)

522mm

140mm(5.51in.)

1100mm(min.)

(21.7in.) (9.84in.)

250mm

(9.84in.)

(16.7in.)

(32in.)

(43.3in.)

(20.55in.)

Figure 2.5 - Holes on the Bearing Surface Dimensions

(2) Drill holes at the marked positions with a 10mm (0.4in.) drill and put the M8

expansion tubes① into the holes; fasten the mounting bracket② with the
M8x25 assembling bolts③ in the accessory kit. Figure 2.6.

Tool: Electric drill (Ф10mm/0.4in. head), 13mm wrench 240 in-lbs

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 20 of 120

1

2

3

Figure 2.6 - Securing the Mounting Bracket

(3) Hang the inverter onto the mounting bracket as shown in Figure 2.7 and
Figure 2.8;

Lift mounting: Take out the lifting eye nut M10 (2pcs) from the accessory kit,
and screw them onto the studs at the top of the inverter. Use a sling rope or
bar (inserted through both lifting eye nuts) to lift the inverter onto the
bracket. The minimum angle between the two sling ropes should be less
than 90 degrees.
Manual mounting: Two people are needed to properly lift the inverter by the
handles detailed in Figure 2.8, and mount the inverter onto the bracket.

Figure 2.7 - Mounting the Main Inverter Section on the Bracket

CAUTION:

The main PVI 36TL inverter section is 55kg (≈122 pounds).
Please ensure the mounting bracket is properly installed before
hanging the inverter on the bracket. It is recommended to have at
least 2 people to mount the inverter due to the weight of the
equipment.

1

2

3

9.84in.

9.84in.

20.55in.

5.51in.
(140mm)

(522mm)

(250mm)

(250mm)

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 21 of 120

Figure 2.8 - Grab Handle Position

(4) Installing the wiring box

① Remove the cover plate at the bottom of the main section. (see Figure 2.9)
Tool: No.2 Phillips head screwdriver

Figure 2.9 – Main Section Cover Plate

② Remove the cover at the top of the wiring box (see Figure 2.10)

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 22 of 120

Figure 2.10 - Wiring Box Cover

③Connect the wiring box to the main section, using M6x16 screws (4pcs) to

secure the wiring box. (see Figure 2.11)

Tool: No. 10 Wrench, torque value of 25 in-lbs (2.8N.m )

Figure 2.11 - Wiring Box Installation

CAUTION:

The total weight of the PVI 36TL main inverter section and wiring box is
66kg (146 pounds).

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 23 of 120

(5) Attach the main section and the wiring box to the mounting bracket with the

M5x10 bolts (6 pcs). (see Figure 2.12)

Tool: No.2 Phillips head screwdriver, torque value of 1.6N.m (14 in-lbs)

Figure 2.12 - Secure the Main Section and Wiring Box to the Bracket

(6) Optional - Install an anti-theft padlock when the installation is complete.
The anti-theft padlock is used to help prevent the inverter from being stolen
when the equipment is installed outdoors. You can lock the inverter on the
bracket, as shown in Figure 2.14:

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 24 of 120

Figure 2.13 - Anti-Theft Padlock Location

The anti-theft padlock should meet the requirement of the dimensions shown in
Figure 2.14:

B

C

A

Figure 2.14 - Dimensions of Anti-Theft Padlock

5) Removing/Replacing the Wire Box Cover:

(1) Use a #3 Phillips screwdriver to remove the 4 screws on the wiring box and
pull cover straight off the box. Do not twist or slide the cover while removing.
(see Figure 2.15)

Recommended lock size:
A: Ф3~6mm
B: 20~50mm
C: 20~50mm

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 25 of 120

Figure 2.15 – Removing the Wiring Box Cover

(2)To replace the cover use a #3 Phillips screwdriver to replace the 4 screws on the
cover.

INSTRUCTION:

It is important to use a hand tool (e.g. Screwdriver or T-handle, #3
Phillips) and not power drivers or other types of screw drivers. Also, it is
important to hold the cover in alignment with balanced force across the
cover, not weighted toward any edge. Partially engage all four screws to
the threaded inserts a few rotations before tightening any one screw.
This is important to maintain alignment and avoid thread damage. When
all four screws are engaged torque to 20 in-lbs (2.2Nm ).

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 26 of 120

2.3 Electrical Installation

The connection interface of PVI 36TL inverter:

Figure 2.16 - Full View of Wiring Box with Options

Figure 2.17 - External Connection Ports

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 27 of 120

Figure 2.18 - Internal Connection Points

1. Knockout for DC input cable, 1-1/4inch

2. Knockout for AC output cable, 1-1/4inch

3. Knockout for communication cable, 3/4inch

4. External ground connection point
5, Side knockout for DC input cable,1-1/4inch

6. Side knockout for AC output cable, 1-1/4inch

7. Side knockout for communication cable，3/4inch

8. DC fuse holder

9. Internal ground connection point and grounding studs.

10. AC output terminal block

Choose the cables for inverters according to the following configuration table:

Table 2.3 - Cable Specifications

Position

Cable

DC input (﹢/﹣)

DC cables specifications refer to Table3-6

AC output
(L1/L2/L3/N)

#6-1AWG(Copper)

#4-1AWG(Aluminum)

#6AWG

recommended(Copper)

#4AWG recommended

(Aluminum)

PE

#10-6AWG(Copper)

#8AWG recommended

(Copper)

RS-485
communication

UTP CAT-5e or 3x#22-18AWG communication cable (eg.

Belden 3106A)

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 28 of 120

DC GROUND

Even though the inverter operates with an ungrounded PV array, the PV system still
requires equipment grounding.

Figure 2.19 - Equipment Grounding Locations

2.3.1 DC Connection

1) Working Mode

PVI 36TL inverter has two PV input sections: DC Input-1 and DC Input-2. These
two sections can work in “Parallel mode” or “Independent mode” (see Figure 2.20).
The default setting from the factory is “Parallel mode”.

In Parallel mode, the two PV input sections share one MPP Tracker; In
Independent mode, each PV input section works with independent MPP Tracker.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 29 of 120

n1=n2 =n3=n4

DC

Input-1DCInput-2

Inverter

n1 n2 n3 n4

DC

Input-1

DC

Input-2

Inverter

n1 n2 n3 n4

n1=n2 n3=n4

Figure 2.20(a) - Parallel Mode Figure 2.20(b) - Independent Mode

Table 2.4 - DC Input Power Specification

Note: The standard configuration is “Parallel mode”. If it needs to switch to the
“Independent mode”, please take the following steps to change the internal

configuration:

1. Remove the cover of the wiring box. (see Figure 2-15)

2. Remove the protection cover. (see Figure 2.21a)

3. Use No.2 Phillips head screwdriver to remove the jumper busbar, torque value of

1.6N.m (14 in-lbs) (see Figure 2.21b)

4. Set the selector switch on the LCD board (see Figure 2.22) to independent mode.

5. Reinstall the protection cover.

PVI 36TL

(Parallel mode-

Default from

factory)

(Independent mode)

Rated DC power

37kW (70A)

18.5kW (35A)

Absolute Max open

circuit Voltage

1000V

1000V

Operating voltage

200-950VDC

200-950VDC

Max power input

voltage range

(MPPT)

540-800VDC

540-800VDC

Maximum available

PV current (Isc x

1.25)

125A

62.5A

Maximum PV power

54kW

27kW

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 30 of 120

Figure 2.21(a)

Jumper busbar

Figure 2.21(b)

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 31 of 120

Figure 2.21(c)

Selector switch for PV
connection mode

1-----independent mode
2-----parallel mode

Figure 2.22 – PV Connection Mode Selector Switch Location

2) DC Fuse Configuration

PVI 36TL inverters are equipped with standard 15A DC fuses. Customers must verify
that the appropriate fuses are installed depending on the actual configuration of PV
strings.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 32 of 120

(a) Each independent string of DC input from the PV strings needs fuse

protection.
(b) The rated voltage of fuses should 1000V
(c) The rated current of fuses is generally 1.56 × short circuit current from the PV

strings, rounded up to the next available fuse size.

The following table lists the fuse type, specifications and number under the rated

voltage and power range of 10 strings of PV panels.

Table 2.5 - DC Fuse Selection

Note 1: The 1000VDC Littelfuse fuse series are recommended. The detailed
information is available for customers to find and download from

http://www.littelfuse.com/.

Note 2: The fuse holders can also accept a 20A (SPF020), 25A (SPF025) and a 30A
(SPF030) fuse for combined input strings if needed.

Note 3: Two 30A fuses should not be used next to each other.

Note 4: Solectria does not provide these fuses, but customer can replace with the
appropriate fuse in field.

WARNING: Use of different fuses or wrong sized fuses can cause
damage to equipment or create un-safe working conditions.

36

kW

Brand

Standard fuses

20A

25A

30A

Littelfuse

SPF015

SPF020

SPF025

SPF030

15A/1000V

20A/1000V

25A/1000V

30A/1000V

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 33 of 120

3) DC Cable Connection

To ensure the optimum performance of the inverter, please read the following

guidelines before DC connection:

(a) Confirm the DC configuration referring to Table 2.5 and ensure that the

maximum open circuit voltage of the PV modules is lower than 1000 VDC
under any conditions.

(b) Confirm that the PV strings for each MPPT of the inverter are of the same

type and specification before connection. The number, orientation, and tilt
of PV strings may differ for different applications.

(c) Configure the external wiring according to the conditions in table 2.6:

WARNING: Working with live voltage is dangerous. It is
recommended to have all live circuits disabled prior to
performing connections.

Table 2.6 - DC Input Configuration

DC

Inputs

Configuration

Max. DC

Wire Size

Conductors

Torque

Fuse Type

10

Standard use of

wiring box

fuses

4 AWG

30 in-lbs

PV Fuse

9*

Standard use of

wiring box

fuses

4 AWG

30 in-lbs

PV Fuse

8

Standard use of

wiring box

fuses

4 AWG

30 in-lbs

PV Fuse

7*

Standard use of

wiring box

fuses

4 AWG

30 in-lbs

PV Fuse

6

Standard use of

wiring box

fuses

4 AWG

30 in-lbs

PV Fuse

5*

Standard use of

wiring box

fuses

4 AWG

30 in-lbs

PV Fuse

4

Standard use of

wiring box

fuses

4 AWG

30 in-lbs

PV Fuse

2

Use of Bypass

terminals

2 AWG

50 in-lbs

Bypass

terminals

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 34 of 120

*Consider combining MPPT zones for such configurations

(d) Check the polarity (Figure 2.23) before plugging the DC connectors with the

cables of PV strings according to the following steps:

i. Use a multi-meter to measure the PV strings’ cable ends and check the

polarity.

ii. The positive (+)terminal of cable should match the positive (+) terminal of

inverter’s DC input.

iii. The negative (-) terminal of cable should match the negative (-) terminal of

inverter’s DC input.

Figure 2.23 - Polarity Check

(e) Remove the plug from the holes of the DC side and plug the suitable

conduits of 1-1/4 inch through the knockouts. Then put the cables through
the conduits inside the wiring box.

(f) Crimp the DC cables with the attached pre-insulated end ferrule (16Pcs) by

using the crimping pliers. (see Figure 2.25)

Tools: Diagonal pliers, wire stripping pliers, crimping pliers

Figure 2.24 - DC Input Cables Set Up

1*

Use of Bypass

terminal

2 AWG

50 in-lbs

Bypass

terminal

NOTICE:

It is important to use a multi-meter to check the polarity of DC input
cables to avoid any risk of reverse polarity.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 35 of 120

(g) Connect the crimped DC cables to the terminal block on the circuit board

and fasten the screws, as shown in Figure 2.25:
Tools: 6mm (0.23in.) flat screwdriver
Torque value: 3.4N-m (30 in-lbs)

Figure 2.25(a) - DC Input Cable Specifications

4) Dual Maximum Power Point Tracking

The inverter is designed with two separate MPP Trackers (Dual MPPT) which

can operate independently or combined.

Figure 2.26 - Two MPPTs Operating Independently

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 36 of 120

Independent mode can be very helpful for sites with shading on parts of the array.

However, this also means that one must consider these two zones as two
separate inverters and power must be balanced as much as possible between
the two MPPT zones.

NOTE: Always connect an equal number of wires to PV1 and PV2
connectors for dual MPPT zone operation. If an odd number of connections are
required, we recommend setting the inverter to single (combined) MPPT zone.

NOTE: Connecting all of the inputs at zone “PV1” will result in only

utilizing 50% of the inverter power

WARNING: Strings must be balanced for optimum performance and AC
output. When doing DC/AC ratio sizing, perform calculations on the

zone level unless you intend to combine MPPT. Maximum DC/AC
oversizing ratio is 1.5 STC conditions of the modules. Each zone maximum input
power is 27 kW. Note for any application that may experience higher than 1000 W
per m2 on a regular basis, a smaller DC/AC ratio is recommended. Also, the
combined Isc rating of all strings multiplied by 1.25 must be less than 125A for
Parallel mode or 62.5A for each MPPT in Individual mode. Failure to follow those
guidelines will result in damage to the inverter and will void your warranty.

Figure 2.27 - Two MPPTs Combined to Operate as One

When the copper jumpers are installed across DC+ and DC- this allows the power to
be evenly distributed between the two trackers such as applications of odd number
of strings.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 37 of 120

Note 1: The temperature rating of the input wirings should be no less than

90°C (194°F).

Note 2: The recommended fuse types are configured according to the

condition that the input strings are the same.

2.3.2 AC and Ground Connection

The following describes how to connect the AC and ground cables between the

inverter and the AC grid:

1) Use #3 Phillips head screwdriver to loosen the 4 screws on the wiring box
and take off the cover. (see Figure 2.-28)

2) Remove the plugs from the holes of the AC side and install the suitable
conduits of 1-1/4 inch through the holes. Then put the cables through the
conduit inside the wiring box.

3) The inverter supports 3 kinds of cable connection on the AC side depending
on the grounding connection method. The cable set-up procedures are
illustrated below.

Use tables 2.-7 and 2.8 for Required tools and Torque values

Figure 2.28 - Remove the Wiring Box Cover

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 38 of 120

Table 2.7 - Required Tools

No.

Tools

1.

#3 Phillips screwdriver

2.

1/4” flat head bit

3.

1/8” flat head bit

4.

Torque driver

5.

Diagonal pliers

6.

Wire stripping pliers

7.

Crimping pliers

Table 2.8 - Torque Values

AC output terminal block

30 in-lbs (3.5 N-m )

Internal grounding bar

14 in-lbs (1.6 N-m )

Internal grounding stud

14 in-lbs (1.6 N-m )

External grounding point

14 in-lbs (1.6 N-m )

Figure 2.29 - AC Output and Ground Cable Connections

Pre-insulated end ferrule
4pcs

Pre-insulated end ferruleCore wire

Figure 2.30 - AC Output and Ground Cable Set Up

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 39 of 120

（1） Connect the AC (L1, L2, L3, N) cables to the terminal block and use the OT
type terminal to connect the ground cable to the internal grounding stud inside the
wiring box. (see the 2nd graph in Figure 2.27) Set up the cables referring to Figure 2.29.

Pre-insulated end ferrule
3pcs

Pre-insulated end ferruleCore wire

OT type terminalCore wire

OT type terminal,1pcs

Figure 2.31 - AC Output and Ground Cable Set Up

（2） Connect the AC (L1, L2, L3, N) cables to the terminal block and use the OT
type terminal to connect the ground cable to the external grounding point at the
bottom of the wiring box. (see the 3rd graph in Figure 3-27 ) Set up the cables referring
to Figure 2.30.

Pre-insulated end ferrule
3pcs

Pre-insulated end ferruleCore wire

OT type terminal,2pcsGround wire

Figure 2.31 - AC Output and Ground Cable Set Up

INSTRUCTION:

The attached pre-insulated end ferrules match with the #6AWG cables. If
a different gauge is selected, a different pre-insulated end ferrule will
need to be provided by the installers.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 40 of 120

(3) When the output of the inverter is connected to the grid, an external AC circuit
breaker is required to be installed to safely disconnect the inverter from the grid when
overcurrent occurs.

(5) The Grid connection type could be optional, which can be (L1,L2, L3,N,PE).
Either 3 pole or 4 pole AC circuit breaker should be selected as per the following
specifications:

Table 2.9 - AC Breaker Selection

Inverter

AC breaker rated current（A）

PVI 36TL

60

Acceptable Transformer Configurations:

Description

Configuration

Inverter

Compatibility

4 Wire WYE

(3 phase + Neutral

+GND)

Compatible

with 36TL

Other Configurations

All other configurations not mentioned in

this document, such as Corner Grounded

Delta

Not compatible

with 36TL

When interfacing with a Wye-grounded transformer winding, a neutral is required.
Since the neutral is used by the inverter for voltage sensing, the neutral does not carry
full load amps. The size of the neutral may be reduced to a conductor no smaller than
the EGC.

When installing multiple inverters for parallel operation connected to a single
transformer the kVA rating of the transformer must be at least 5% greater than the
total inverter kVA rating that feed the transformer. Up to 70 inverters may be
connected in parallel for use with a single transformer.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 41 of 120

2.4 Inverter Communication Connections

The PVI 36TL inverters support industry standard Modbus RS-485 communications.

Figure 2.32 - Communication/LCD and component locations inside the inverter
Wiring Box

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 42 of 120

Table 2.10 - Communication connections and configuration switches

Item

Picture

Configuration description

1

N.O. N.C. COM

P205 - Dry Contact Communication Port (3 Pin
Connector)

Please see section 2.4.3 Dry contact communication for
more details.

2

P207 - USB port
Reserved for factory use

3

P204 - Not Used

4

P203 - Not Used

5

P208 - Modbus (RS-485) connector
1 - NC
2 - NC
3 - RS-485+
4 - RS-485­5 - NC

6

S403 - Not Used

7

S402 - Selector switch for the 120Ω Modbus RS-485
termination resistor

1 - Disable the RS-485 bus termination
2 - Enable the RS-485 bus termination

8

S401 - Selector switch for setting the PV
connection mode

1 - Independent mode
2 - Parallel mode
See section 2.3.1 for more details

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 43 of 120

2.4.1 Third Party Monitoring Systems Modbus Connections

The PVI 36TL inverter can be connected to a third party Data Acquisition System (DAS) via
Modbus (RS-485) connection as shown in figure 2.33.

Figure 2.33 - PVI 36TL Inverters in a Modbus (RS-485) Daisy Chain Connected to
a third party DAS

 When connected to a third party Data Acquisition System (DAS), Solectria PVI 36TL

inverters support up to 32 inverters/devices on the Modbus (RS-485) daisy chain. The
Inverter Modbus IDs are configurable from 1 to 32.

 Solectria recommends that the Modbus (RS-485) daisy chain for PVI 36TL inverters is

limited to a maximum length of 1600 ft. (500m).

 Care must be taken when daisy chaining the inverters as shown above, utilizing a

Shielded Twisted Pair Modbus cable such as Belden 9841 or Southwire 58165802.

 The shield continuity should be maintained for the entire length of the daisy chain and

should only be connected to ground (GND) at the Data Acquisition System (DAS). The
shield should not be connected to any of the inverters to prevent any possible ground
loops.

 It is important to terminate the Modbus (RS-485) bus correctly to minimize any noise

and reflections. The bus should have termination resistors at the source (the DAS) and at
the last Modbus device in the daisy chain, typically an inverter. The PVI 36TL Modbus
termination resistor is turned on by flipping switch S402 to the ON position as shown in
Figure 3-35. S402 should always be left in the off position except for the last inverter in
the daisy chain.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 44 of 120

 Star or T Modbus (RS-485) network topologies should always be avoided. See Figure

2.34.

Figure 2.34

It is important to daisy chain the inverter Modbus (RS-485) connections to minimize
noise and bus reflections. Any network topologies shown to the left should be
avoided. Equivalent daisy chain topologies shown to the right should be used instead.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 45 of 120

Connecting third party DAS Modbus (RS-485) Network to the PVI 36TL Inverter:

Warning: Risk of Electric Shock.
Make sure all DC and AC power to the unit has been disconnected before opening
the inverter wiring box and make sure hazardous high voltage and energy
inside the equipment has been discharged.

1. Open the inverter wiring box.

2. Bring the cable into wiring box through knockout holes at the bottom. See section 2.3

Electrical Installation for more information.

3. Connect the Modbus (RS-485) wires to the green Phoenix connector (P208) ensuring

correct polarity and using a twisted pair in the shielded twisted pair cable.

4. If the inverter is the last Modbus device in the daisy chain, make sure the Modbus

termination switch S402 is in the ON position (Up towards the LCD) enabling Modbus
termination. Do not turn the switch to the ON position in any other inverters in the daisy
chain.

S402 - Selector switch for
the 120Ω RS-485 termination
resistor

1 - Disable the Modbus
(RS-485) bus termination.
(Factory default)

2 - Enable the Modbus
(RS-485) bus termination
(Applies only for the last
inverter in the daisy chain)

Note that switch S403 to the
left of S402 not used and
stays in the OFF position.

Figure 2.35 - The Modbus (RS485) Termination Switch (S402) Location and Settings on
the LCD/Communication Board.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 46 of 120

Figure 2.36

The above image shows the Modbus (RS-485) cable connection where the Modbus daisy chain
ends. Notice how the cable shield is not landed inside the inverter. The Modbus termination
switch (S402) is in the on position.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 47 of 120

5. IMPORTANT: The cable shield should only be connected to ground (GND) at the third

party DAS. Do not connect the shield to any of the inverters

Figure 2.37

Notice how the cable shield is daisy chained together and not landed inside the inverter.
S402 is in the OFF position, or down towards the P208 connector when the inverter is in
the middle of the daisy chain.

Warning: Risk of Electric Shock.
Make sure all shield wires are properly secured and insulated to prevent shorting to
any other components inside the inverter.

6. Close the wiring box.

7. Reconnect AC and DC power and turn the inverter on when it is safe.

8. Configure the Inverter Modbus ID and Baud rate using the front LCD display.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 48 of 120

2.4.2 SolrenView Data Logger Modbus Connections

The SolrenView Data loggers are installed externally as shown in figure 2.38a, 2.38b and is
shipped with an external weathertight box and a combination power and Modbus cable.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 49 of 120

Figure 2.38a - Typical PVI 36TL Network Connections Utilizing SolrenView Data Logger and Veris Revenue Grade Meter.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 50 of 120

Figure 2.38b - Typical PVI 36TL Network Connections Utilizing SolrenView Data Logger, Veris Revenue Grade Meter, Central Inverter and a
Weather Station.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 51 of 120

Warning: Risk of Electric Shock.
Make sure all DC and AC power to the unit has been disconnected before opening
the inverter wiring box and make sure hazardous high voltage and energy
inside the equipment has been discharged.

 The SolrenView data logger acts as the Modbus Master and can support up to 32

inverters on the Modbus (RS-485) daisy chain utilizing Modbus IDs 1 through 32. If more
than 32 inverters are required, additional SolrenView data loggers must be added, with
each logger supporting up to 32 inverters per daisy chain.

 Solectria recommends that the Modbus (RS-485) daisy chain for PVI 36TL inverters is

limited to a maximum of 1600 ft. (500m).

 The inverter Modbus (RS-485) connections must utilize a Shielded Twisted Pair Modbus

cable such as Belden 9841 or Southwire 58165802.

 The cable shield continuity should be maintained for the entire length of the daisy chain

and should only be connected to Chassis GND inside the first inverter in the daisy chain
as shown in figure 2.38. The shield should not be connected to any of the other inverters
to prevent any possible ground loops.

 Star or T Modbus (RS-485) network topologies should be avoided. See Figure 2.34.
 It is important to terminate the Modbus (RS-485) bus daisy chain correctly at both ends

with 120 ohm resistor to minimize any bus noise and signal reflections. The bus should
have termination resistors turned on at the SolrenView data logger and at the last
Modbus device in the daisy chain, typically an inverter. It is important that the Modbus is
only terminated at the opposite ends regardless of there being only 2 or up to 32
devices connected to the bus.

The Modbus termination resistors are built into the PVI 36TL inverter which can be
turned on by flipping switch S402 to the ON position as shown in Figure 2.35. The S402
switch should always be left in the OFF position except for the last inverter in the daisy
chain.

The SolrenView data logger ships with the Modbus termination resistors turned on. For
more details see Figure 2.41

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 52 of 120

Installing the SolrenView Data Logger:

1. Install the SolrenView data logger and its weathertight box next to the first inverter in the

daisy chain. The SolrenView data logger is powered by the inverter and needs to be
connected to the first inverter in the Modbus daisy chain.

Figure 2.39. - The SolrenView Data Logger.

2. The SolrenView data logger is connected to the customer provided Ethernet Gateway

utilizing a customer provided Cat5e or better Ethernet cable as shown in figure 2.38 and

2.40. The Ethernet cable must be continuous and the length kept shorter than 328ft
(100m) to ensure trouble free Ethernet communications.

Figure 2.40. - SolrenView Data Logger Ethernet, Modbus and Power Connections.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 53 of 120

3. Connect the supplied SolrenView data logger power and Modbus cable to the logger as

shown in Figure 2.40.

4. The SolrenView data logger is shipped from the factory with the Modbus termination

resistors in the ON position. See DIP switches #3 and #4 closest to the white Molex
connector on SW1 in Figure 2.41a.

Note: Switches 3 and 4 have been removed from Rev 4 and newer boards and are no
longer applicable on Rev 4 boards.

Figure 2.41a - The SolrenView Data Logger Printed Circuit Board and the Modbus
Termination Dip Switches. SW 3 and 4 pushed away from the board edge and in the
ON position.

Note: Do Not connect the 485 GND terminal.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 54 of 120

Figure 2.41b - The SolrenView Data Logger Printed Circuit Board and the Modbus
Termination Dip Switches. Rev 4 or newer board.

Note: Switches 3 and 4 have been removed from Rev 4 and newer boards and are no
longer applicable on rev 4 and newer boards. The Modbus Termination Resistors are on
by default.

Note: Do Not connect the 485 GND terminal.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 55 of 120

Connecting the SolrenView Data Logger to the Inverters:

Warning: Risk of Electric Shock.
Make sure all DC and AC power to the unit has been disconnected before opening
the inverter wiring box and make sure hazardous high voltage and energy
inside the equipment has been discharged.

1. Disconnect all inverter AC and DC power.

2. Open the inverter wiring box.

3. Bring the Yaskawa Solectria Solar supplied SolrenView data logger power and Modbus

cable into the inverter wiring box through knockout holes at the bottom. See section 2.3
Electrical Installation for more information. Connect the cable to P208 on the LCD board
as shown in Figure 2.43.

4. Extend the Modbus cable shield with additional wire so that it can reach to the Chassis

GND terminal block as shown in Figure 2.43.
The wire should be soldered to the cable shield to ensure solid and reliable connection.
The shield connection should be covered with a heat shrink tubing to prevent any shorts
to other components inside the inverter. See figure 2.42.
The shield extension wire should be kept as short as possible to minimize any noise
pickup.

5. If extending the Modbus daisy chain connection to another Modbus device such as an

additional inverter or Modbus based RGM, connect the additional Modbus (RS-485) cable
to the green 5 pin connector (P208), ensuring correct polarity and using the twisted pair
in the Modbus cable. See Figure 2.42, 2.43 and 2.38 for more details. Care must be taken
not to disconnect the Modbus or the power wires coming from the SolrenView data
logger.

Figure 2.42 - Close up showing how the SolrenView Data Logger power and Modbus
cable, the shield extension, and the optional Modbus cable extension connected to
the P208 connector terminal block. Don’t expose any more than 2” of wire
outside of the shield.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 56 of 120

Figure 2.43 - The SolrenView Data Logger is connected to the PVI 36TL inside the
Wiring Box.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 57 of 120

6. If the inverter is the last/only Modbus device in the Modbus daisy chain, make sure the

Modbus termination switch S402 is in the ON position (Up towards the LCD) enabling
the Modbus termination resistor. Do not turn the switch to the ON position in any of the
other inverters. See Figure 2.35 and 2.43.

7. Follow steps 5 through 8 in section 2.4.1 Third Party Monitoring Systems Modbus

Connections to connect other inverters to the Modbus daisy chain.

Warning: Risk of Electric Shock.
Make sure all shield wires are properly secured and insulated to prevent shorting to
any other components inside the inverter.

8. Close the wiring box.

9. Reconnect AC and DC power and turn the inverter on when it is safe.

10. Configure the Inverter Modbus ID and Baud rate using the front panel LCD display. See

section 2.4.3 for more details.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 58 of 120

2.4.3 Preparing the Inverter for Modbus Communications

To ensure correct Modbus communications with the SolrenView data logger, each inverter
Modbus communications settings need to be configured properly. Please follow the steps
below to adjust the inverter Modbus ID and Modbus Baud rate.

1. Turn the inverter DC power on when it is safe.

2. On each inverter LCD, move the cursor to “4 Setting” in the main interface using the

UP/DOWN keys.

3. Press ENT to enter the password: UP -> DOWN -> UP -> DOWN.

4. Press ENT to confirm the password,

5. Move the cursor to “5 Com.” and press the ENT key.

6. Move the cursor to “Address” press the ENT key.

7. Use the UP/DOWN keys to select the Modbus ID (address).

8. Press ENT to confirm the Modbus ID (1 - 128)

Each inverter must have a unique Modbus ID which must be different from a Revenue
Grade Meter Modbus ID if it is used.

9. Move the cursor to “BaudRate” using the UP/DOWN keys and press the ENT key.

10. Select “1” for 9600 Baud or “2” for 19200 Baud using the UP/DOWN key.

The SolrenView data logger will auto discover either Baud rate, but 9600 Baud is
recommended for long distances.
All the inverters in the Modbus daisy chain must use the same Baud rate.

11. Press ENT to confirm the Baud rate selection.

Press the ESC key anytime to back up the menu structure.

For more information see Figures 4.1 and 4.12.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 59 of 120

2.4.4 Preparing the SolrenView Logger

Warning: Risk of Electric Shock.

Make sure all DC and AC power has been disconnected before starting any work.

The SolrenView data logger is shipped from the factory with default setting to auto discover
Yaskawa Solectria Solar inverters and supported RGMs. The SolrenView logger should be
connected to all the devices before it is turned on as described in above sections for the auto
discovery to work.

1. Contact Yaskawa Solectria Solar Customer Support ([phone]) to have them

activate the SolrenView Monitoring and set up the SolrenView Monitoring site.

2. Connect the Ethernet connection to an active internet Gateway as shown in Figure 2.40.

The SolrenView data logger will go through TCP/IP DHCP discovery when it is turned on
and attempt to connect to the SolrenView Monitoring servers.

3. The inverter should already have been configured with unique Modbus ID between 1 and

128. When turned on, the SolrenView Logger will go through self-initialization and start
searching for inverters which can last for several minutes.
Note that every inverter in the Modbus daisy chain has to be turned on and receiving DC
power in order to be discovered.

4. If installed, the RGM should already be connected to the SolrenView data logger and

powered on at this time, in order for the SolrenView data logger to auto discover it. The
RGM must have a unique Modbus ID (1 - 32) that is different from the inverter designated
Modbus IDs. Any Modbus ID conflicts will prevent Modbus communications with the
conflicting devices.

5. Turn the inverter DC power for all the inverters. The inverter providing power for the

SolrenView data logger should be turned on last as that turns the logger on. The
SolrenView data logger will go through its auto discovery which can take several minutes.
a) Verify that the SolrenView data Logger is connected to the SolrenView servers. The

SolrenView data logger status screen will display an “I” in the upper right corner on
the LCD display when it establishes Internet connection to the SolrenView
Monitoring servers. Note, the “I” is only displayed on the top level status screen.

b) Verify that the SolrenView data logger discovered all the inverters in the Modbus

daisy chain by navigating to the “Inverter(s)” menu on the SRV data logger LCD
display. Use the SolrenView logger LCD UP or DOWN arrows to scroll through the list
of discovered inverters. Each inverter should be listed by Modbus ID and serial
numbers on the LCD.

c) If an RGM option has been purchased and an RGM meter is installed, verify that the

SolrenView data logger displays “Revenue-Grade” on the top LCD display line in the
top level menu.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 60 of 120

Internet Gateway Configuration:

The Internet Gateway should not require any special configuration as most routers are already
configured to support DHCP discovery and to allow outgoing traffic. In case the router/firewall
is configured to restrict outgoing traffic, an outgoing rule must be added to allow the logger to
connect to the SolrenView Monitoring data servers.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 61 of 120

2.4.5 Connecting Revenue Grade Meter to the SolrenView Logger

Warning: Risk of Electric Shock.

Make sure all DC and AC power has been disconnected before starting any work.

Some installations require Revenue Grade Metering (RGM) for accurate energy production
tracking and reporting. For that purpose the RGM needs to be connected to the SolrenView
Logger over Modbus (RS-485) connection as described below.

Figure 2.44 - This figure shows how the Veris RGM meter is connected to the Modbus
(RS-485). Note the 120 ohm Modbus termination resistor (not supplied) is only
needed if the RGM is the last device in Modbus daisy chain.

Warning: Risk of Electric Shock or equipment damage.

Make sure all shield wires are properly secured and insulated (i.e. heat shrink) to
prevent shorting to any other components inside the inverter.

The SolrenView data logger is configured to automatically search for and detect an RGM. No
special SolrenView data logger configuration is required for supported RGMs.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 62 of 120

1. Choose a unique Modbus ID (address) different from any Inverter Modbus ID and set the

switches for that ID as shown in Figure 2.45. Only Modbus IDs 1 through 32 can be used.

Figure 2.45 - Veris RGM meter Modbus ID (address) settings.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 63 of 120

2. Connect the voltage leads to the phase conductors at a location that is not

normally turned off. Connect voltage leads on the Line side of the conductor to
ensure constant power to the RGM.
For a 3-phase system, connect the red lead to phase A, black to phase B, and
yellow to phase C.
For more detailed information on how to connect the RGM, please see the RGM
installation manual included with the RGM.

Figure 2.46 - Typical 208/480 VAC 3 phase, 3- or 4- Wire Installation.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 64 of 120

3. Snap the CT onto the conductor.

Connect CTs to the correspondingly colored voltage leads. If the application can
exceed 20 times the rated CT current, use wire ties to secure the I-bar to the CT
housing.
This CT automatically detects phase reversal, so CT load orientation is not
important.

Figure 2.47 - Use wire ties to secure the I-bar to the CT housing.

4. Connect the shielded twisted pair Modbus cable to the Modbus (RS-485) terminal

as shown in Figure 2.44. Only add a 120 ohm termination resistor if the RGM is the
last Modbus device in the Modbus daisy chain.
Do not connect the cable shield to the RGM.

5. Enable power for the RGM and the SolrenView Logger will automatically discover

the RGM when it is turned on.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 65 of 120

2.4.6 Dry Contact Communication

The inverter features an alarm function that opens or closes a dry contact on the
communication board. (available both as contact normally open – N.O. – and as contact
normally closed – N.C.), as shown below:

N.O. N.C. COM

Figure 2.47 - Dry Contact Communication Port

The voltage and current rating of the dry contact shown in the following table
must not be exceeded under any circumstances.

Table 2.11 - Dry Contact Rating

Voltage

Current

AC

Maximum 277 V

Maximum 3 A

DC

Maximum 30 V

Maximum 1 A

Different modes of dry contact output can be accessed by connecting different
pins of the P205 connector, as shown in following table.

Table 2.12 - Dry Contact Working Modes

Dry contact communication port

Status in fault condition

Status without fault

condition

P205: N.O. — COM

Closed

Open

P205: N.C. — COM

Open

Closed

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 66 of 120

Connection Plan:
You can connect a LED or other loads to indicate the operational status of the
inverter, as shown in the following figure:

Figure 2.48 - Dry Contact Communication Schematic Diagram

If you connect the contact port to the power distribution grid, you must install
an individual miniature circuit-breaker between the dry contact and the power
distribution grid.

Dry Contact Communication Cable Connection:
Warning: If the unit is running, turn off both disconnects and wait 5 minutes before
performing any work.

a.) Remove the plugs from holes for suitable cable conduits of 3/4 inch.
b.) Put the dry contact communication cable through the cable conduit and inside

the wiring box.

c.) Use double-layer insulated cables. Strip the cables according to the

following requirements.

COM
N.C.
N.O.

COM
N.C.
N.O.

COM
N.C.
N.O.

+ -

Light on in trouble free operational Light on in error

Line circuit Breaker( 3 A)

(or L N)

COM
N.C.

N.O.

COM
N.C.
N.O.

COM
N.C.
N.O.

+ -

Line circuit Breaker( 3 A)

(or L N)

Fault

In operation

In operation

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 67 of 120

Tool: Wire stripping pliers

Figure 2.49 - Wire Stripping

Table 2.13 Cable Set-Up

Position

Description

Value

Cable type

Double-layer insulated cable

D

Outer diameter

4.5 mm~ 6 mm

A

Cross-section area of conductor

0.2 mm² ~ 0.75 mm²

L1

Length of stripped outer wire skin

Maximum 15mm

L2

Length of stripped inner wire skin

Maximum 7 mm

d.) Connect wires to the terminal.

Tool: 2 or 2.5mm flat screwdriver

Figure 2.50 - Wire Connection

D A

L1

L2

No.

Cable Color

Function

1

Red

N.O.

2

Blue

N.C.

3

Green

COM

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 68 of 120

e.) Plug the cable terminal into the P205 connector.

Figure 2.51 - Dry Contact Communication Cable Connection

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 69 of 120

3.0: Commissioning

3.1 Commissioning Checklist

3.1.1 Mechanical Installation

Make sure that the mounting bracket is secure and all the screws have been tightened
to the specified torque values.
(Please refer to 2.2 Mechanical Installation)

3.1.2 Cable Connections

(a) Make sure that all cables are connected to the right terminals.
(b) The appropriate cable management is important to avoid physical damage.
(c) The polarity of DC input cables should be correct and the DC Switch should be in

“OFF” position.

(Please refer to 2.3 Electrical Installation)

3.1.3 Electrical Check

(a) Make sure that the AC circuit breaker is appropriately sized.
(b) Test whether the AC voltage is within the normal operating range.
(c) Make sure the DC open circuit voltage of input strings is less than 1000V.

3.2 Commissioning Steps

Complete the checklist above before commissioning the inverter as follows:
a) Turn on the AC circuit breaker.
b) Turn on the DC circuit breaker.

(Skip this step if there is no circuit breaker.)

c) Switch the DC Switch to the “ON” position. When the energy supplied by the PV

array is sufficient, the LCD of inverter will light up. The inverter will then start up
with the message “sys checking”.

d) Set up the grid standard:

WARNING:

Please follow the guidelines below before on-grid operation to eliminate
possible dangers and to ensure safety.

INSTRUCTION:

Please check with your local electricity provider before selecting the grid
standard. If the inverter is operated with a wrong grid standard, the
electricity provider may cancel interconnection agreement.
Putting the inverter into operation before the overall system complies
with the national rules and safety regulation of the application is not
permitted.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 70 of 120

(e) When the inverter completes “sys checking”, the LCD shows the screen as Figure

3.1 below. Press ENTER to the standard selection interface, as shown in Figure

3.2.

(f) Select the corresponding grid standard and press ENTER.

a. Press ENT to go to main menu. Press DOWN and ENT at

the same time in the main interface.

b. Enter the password (UP -> DOWN -> UP -> DOWN) to

access the system protection parameters setup menu. This
menu includes 6 submenus: “1 SysPara”, “2 Restart”, “3
Recover”, “4 ClrErrRecd” and “5 InternConn”, as shown in
Figure 1.

c. Select the menu “5 InternConn”. This menu includes 4 grid

codes: “1 IEEE1547”, “2 Rule-21”, “3 Heco-OHM”, “4
Heco-ML”.

→1 SysPara.
2 Restart
3 Recover
4 ClrErrRecd

Pls Input Pwd

****

Pwd Error

Pls Input Again

****

Wrong Password

5 InternConn

Password:
UP + DOWN+UP + DOWN

1 IEEE1547
2 Rule-21
3 Heco-OHM
4 Heco-ML

Key:Down+Ent

1 OP.Info

2 Alarm
3 History
4 Setting

Password:
UP + DOWN+UP + DOWN

Step 1

Step 2 Step 3

Figure 3.1 - Set Up Grid Standard

→ 1 Rule 21
2 IEEE 1547
3 HECO-ML
4 HECO-OHM

Figure 3.2 - Select Grid Standard; ML-Molokai/Lanai; OHM- O`ahu, Maui, and

Hawai`I

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 71 of 120

(g) When the LCD shows the normal operation status (Figure 3.3) and the “RUN”

light on the LED panel lights up, it indicates that the grid connection and power
generation are successful.

(a) (b)

Figure 3.3 - Normal Operation Status

(h) If the inverter fails to operate normally, the “FAULT” LED will illuminate and the

error message will be displayed on the LCD.
(Please refer to 7.1.2 Troubleshoot LCD faults)

(i) Set up system time and language

Set up the system time and language according to “4.4.4 System Configuration”.

(j) To check the real time operation information, you can refer to “4.4.1 Operation

information”.

725 V

14.5A

277

21.2

223.2

PV1

08/12 13:10:05

720 V

14.9A

277

21.5

223.2

PV2

08/12 13:10:10

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 72 of 120

4.0: User Interface

4.1 Description of LCD

The inverter’s LCD mainly consists of LCD, LED indicator lights, buzzer and 4 keys,

as shown in Figure 4.1.

POWER

RUN

GRID

FAULT

Figure 4.1 - LCD

Interpretation for the indicator lights is shown in Table 5-1 and function of the

keys is shown in Table 4.2.

Table 4.1 - LED Indication

LED Indicator

Name

Status

Indication

POWER

Working

power

light

Light

on

Energized (control panel starts to work)

Light

off

Power supply not working

RUN

Grid-tied
operation
indication

light

Light

on

In grid-tied power generation state

Flash

Derated running status (light on 0.5s,
light off 1.6s)

Light

off

In other operation status or power
supply not working

GRID

Grid

status

indication

light

Light

on

Grid is normal

Flash

Grid fault (light on 0.5s, light off 1.6s)

Light

Power supply not working

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 73 of 120

off

FAULT

Fault

status

indication

light

Light

on

Indicates a Fault

Slow

flash

Indicates Alarm (light on 0.5s, light off
2s)

Fast

flash

Protective action (light on 0.5s, light off

0.5s)

Light

off

No fault or power supply not working

Table 4.2 - Definition of the Keys

Key

Description

Definition of function

Escape key

Back/end/mute

Enter key

Confirm entering the menu/confirm set
value/Switch to parameter setting mode

Up

Page up in selection menu/+1 when
setting parameters

Down

Page down in selection menu/-1 when
setting parameters

4.2 Operation State

Table 4.1 indicates the definitions of LED, i.e. indicates the information of the

inverter’s operation state. It indicates that the system is energized and under DSP
control when “POWER” lights up.

“RUN” will light up when the inverter detects that the grid connection conditions

meet the requirements and power is fed into the grid. “RUN” will blink if the grid is in
de-rated running state during the period of feeding power into the grid.

“GRID” will light up when the grid is normal during the operation of the inverter.

Otherwise, “GRID” will blink until the grid restores to normal.

“FAULT” will blink quickly as a fault (except grid fault) occurs. “FAULT” will not

turn off until the fault is eliminated. The light will blink slowly when an alarm occurs.
“FAULT” remains illuminated when an internal fault occurs.

The buzzer will give an alarm if a fault (involving power grid fault) occurs.

4.3 Interface Types

Users can perform the corresponding operations with the 4 function keys

according to the indications of the LCD.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 74 of 120

(1) The LCD interface starts with the company logo once the system is energized,

as shown in Figure 4.2.

Figure 4.2 - Logo Screen

(2) Indication of inverter operation mode:

Sys.Checking

>>>>>>

Figure 4.3 - Inverter System Check Ongoing

Standby

>>>>>>

Figure 4.4 - Inverter System in Standby Mode

(a) (b)

Figure 4.5 - Default Display Interface for Normal Operation

730 V

14.0A

277

20.2

223.2

PV1

08/12 13:10:05

729 V

14.2A

277

20.5

223.2

PV2

08/12 13:10:10

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 75 of 120

GridV.OutLim

Figure 4.6 - Fault Indication Interface

LCD will display different mode interfaces based on the operation modes of the
inverter. There are four operation modes: startup system check mode (as shown in
Figure 4.3), stand-by mode (as shown in Figure 4.4), normal operation mode (as
shown in Figure 4.5, the switching time between (a) and (b) is 5 seconds), and fault
mode (as shown in Figure 4.6).

The default indication interface mainly indicates PV voltage, PV current, grid
voltage, instant power, daily generated power and time information under normal
operation.

The fault information of the most recent / current fault will be indicated on the
LCD when the inverter is in fault mode.

4.4 Menu functions

LCD displays “default indication interface” when the inverter is in operation
mode. Press ESC in this interface to escape the default interface and enter the main
operation interface. The main operation interface is shown in Figure 4.7.

1 OP.Info
2 Alarm
3 History
4 Setting

→5 Dispatch

Figure 4.7 - Main Menus on the LCD

The users may select options with UP and DOWN, and then press ENT to confirm
selection. The users can return to the default indication interface by pressing ESC.

4.4.1 Operation information

When the cursor moves to “1 OP. Info” in the main screen, you should press ENT
to select the operation information as shown in Figure 4.8. Check the information by
pressing UP and DOWN. Return to the previous menu by pressing ESC.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 76 of 120

EDay 23.5kWh
PDayPk 19kW
DayT 12 .1 h

Uab 480.2V
Ubc 480.5V
Uca 479.7V
Freq 60.0Hz

Ia 20.1A
Ib 19.8A
Ic 20.0A

Tmod 78.2C
Tamb 50.1C

Upv 1 452.0V
Ipv1 18.9A
Upv 2 453.4V
Ipv2 18.7A

Sac 16.8KVA
Pac 16.5kW

1 OP.Info

Figure 4.8 - Operation information indication (PV independent mode)

Remarks：The LCD is shown with PV parallel mode selected.

Upv 453.0V

Ipv 18.7A

Figure 4.9 - Operation Information Indication (PV Parallel Mode)

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 77 of 120

4.4.2 Alarm

As previously noted, if a fault occurs during normal operation of the inverter,

corresponding fault messages will be indicated in “2 Alarm” menu in addition to the
sound and light alarms. Move the cursor to “2 Alarm” and press ENT to check out the

specific fault information, as shown in Figure 4.10.

2 Alarm

No Alarm

EepromErr

Protect0010

…

No

Yes

Figure 4.10 - Alarm / Failure Information

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 78 of 120

4.4.3 History

Move the cursor to “3 History” in the main interface. Press ENT to check the
history information, as shown in Figure 4.11. There are 4 submenus in “3 History”: “1
HistErr”, “2 OP. Recd”, “3 Version” and “4 TotalTag”.

(1) The error log can store up 100 fault messages in “1 HistErr” menu.

(2) The last 21 days of operation history data is available to be checked in “2 OP.
Recd” menu. All variable names in the data comply with the content in “1 OP. Info”
menu of the main interface. The users can select the “2 OP. Recd” menu and review
the last 21 days of operation.

(3) The DSP version, LCD version and serial number of the product are listed in “3
Version” menu.

(4) Cumulative generated power from the first day the inverter began working is
available to be checked in “4 TotalTag” menu.

3 History

1 HistErr
2 OP.Recd
3 Version
→4 TotalTag

NoError

1.St2010.12.15 20:50
SPI Error

2.Ed2010.12.15 20:59
SPI Error

…

No

Yes

Pls input date

←2→ ß—12/15

EDay 123.5KWh
PDayPk 20.0KW
DayT 7.0h

DSPVer. 0.01
LCDVer. 0.01
Serial No.
10731220003

TotalTag（KWh）

2123.5

Figure 4.11 - History Menu and Submenu

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 79 of 120

4.4.4 System Configuration

Move the cursor to “4 Setting” in the main interface. Press ENT to enter the
password: UP -> DOWN -> UP -> DOWN. Press ENT to confirm, and set the current
system parameters, as shown in Figure 5-12. There are 7 submenus in “4 Setting”: “1
ON/OFF”, “2 Language”, “3 Buzzer”, “4 SysTime”, “5 Commun.”, “6 OtherCmd” and “7
NetConfig”.

1 ON/OFF
2 Language
3 Buzzer
→4 SysTime

↓

2015 / 04 / 15

09 ：14

→ 中文
English

EnglishVer.

5 Commun
6 OtherCmd
7 NetConfig

AFCIOption
Disable
AFCIFaultClear

DHCP
<Enable>
StaticIP

IPAddr:10
122
1
123

SubMask:255
255
255
0

GateWay:10
122
1
254

DNSSer.: 10
122
0
1

MPPTOption
Disable
MPPTCycle
60 Min

MPPTScan

4 Setting

→ ON
OFF

ON State

KeyBeep
Enabled
AlarmBeep
→ Disabled

→ Francaise
Deutsch

EnglishVer.

→ Italiano

EnglishVer.

→ Address 2
BaudRate 3
1 2400 2 4800
3 9600 4 19200

Figure 4.12 - System Setup Menu and Submenu

(1) The inverter can be started and shut down with “1 ON/OFF” menu. Move the
cursor to “ON” and press ENT, “ON State” will then be indicated at the bottom of LCD;
move the cursor to “OFF” and press ENT, then “OFF State” will be indicated as well.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 80 of 120

The inverter will stand by instead of working normally if the startup conditions do not
meet the needed values even if “ON” is selected. The inverter will shut down
immediately if “OFF” is selected in any case.

(2) Five languages, i.e. English, French, Chinese, German, and Italian are available
in “2 Language” menu.

(3) Key beep and Alarm beep can be set mute/unmute in “3 Buzzer” menu. “Key
beep” and “Alarm beep” can be chosen by pressing UP and DOWN. Shift between
“Enable” and “Disable” by pressing UP and DOWN if the cursor is on the “Key beep”.
Complete the setup by pressing ENT. Similarly, the Alarm beep can be set up in the
same way.

(4) Set up the system date and time with “4 SysTime” menu (These parameters
are of critical importance and will be used in history information).

(5) Set the 485 communication parameters with “5 Commun.” menu.

(6) There are 5 submenus in the “6 other Cmd” menu:

1. Arcing check and protection is mainly divided into two parts, the Arcing check
board is responsible for whether there is Arcing in line, and transfer Arcing protection
signal to the DSP in the control board. The control board (DSP) is responsible for the
control of inverter off the grid after receiving Arcing signal to ensure safety. The Arcing

board failure will cause ‘arc board err’ shown on the LCD and it will not connect to the

grid until the arc board is OK. If there is Arc-fault, the LCDs the fault which can only be
cleared manually.

“ARCOption” is used to enable/disable the ARC function. Press ENT and use UP

and DOWN to enable/disable the ARC function, and press ENT to confirm the setting.

2. “ARCFaultClear” is used to clear the Arc-fault. Move the cursor to this menu, and
press ENT. The operation result will appear on the LCD, ie. “Succeed” or “Failed”.

3.MPPT scan function is effective if：

1) In parallel mode, the total input power is lower than 90% of the active

power in parallel mode.

2) In Independant mode, each input power is lower than 75% of the rating

power of each MPPT tracker.

Once this MPPT scan function is set on LCD, it will search the maximum
power point at a voltage step of 5V in the MPPT range for full load, and get the
maximum power point.

“MPPTOption” is used to enable the MPPT Scan. Move the cursor to this item,
press ENT to set up the function. Use UP and DOWN to enable/disable the
“MPPTOption” function. Press ENT to confirm the setting.

4. “MPPTCycle” is used to set up the cycle time of MPPT Scan. Move the cursor to this
item, press ENT to set up the cycle time. Use UP and DOWN to adjust the MPPT cycle
time. Press ENT to confirm the setting.

5. “MPPTScan” is to execute the MPPT scanning manually. Move the cursor to this
item, and press ENT to initiate the scanning. The LCD will skip to normal operation

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 81 of 120

interface if the MPPT scanning succeeds, or remain on the “MPPTScan menu”
interface if the scanning fails.
(7) Configure the network address in the “7 NetConfig” menu.

Move the cursor to the menu, press ENT and set up the parameters by UP and
DOWN. Note if you have a daisy chain you cannot have two devices (inverters or
other Modbus devices) with the same network ID.

4.4.5 Power dispatch

Move the cursor to “5 Dispatch” in the main interface and press ENT to go to the
following interface (Figure 4.13):

5 Dispatch

ActivePower(%)

100.0
PowerFactor

1.000

Figure 4.13 Active Power and PowerFactor

Remote power dispatch: The “ActivePower” and “PowerFactor” can be adjusted

remotely by software.

4.4.6 System Protection Parameters Setup

Press DOWN and ENT at the same time in the main interface and enter the
password (UP -> DOWN -> UP -> DOWN) to access the system protection parameters
setup menu. This menu includes 6 submenus: “1 SysPara”, “2 Restart”, “3 Recover”, “4
ClrErrRecd” and “5 Stdset”, as shown in Figure 4.14.

INSTRUCTION:

Move the cursor to the corresponding menu to set up the parameters,
and the number will flash after pressing ENT. Use UP and DOWN to
adjust the parameters.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 82 of 120

Figure 4.14 - System Protection Parameter Configuration

(1) The system protection parameters of each grid standard can be set up in “1
SysPara” menu. Please refer to Section 4.4.7.

(2) “2 Restart” menu: If a fault shutdown arises, a severe fault may have occurred
inside the inverter. The user can perform a force reboot for one time in this menu if
the user needs to restart the inverter.

(3) “3 Recover” menu: The manufacturer’s parameter default value can be
restored when the inverter is not in operation mode. Otherwise “Fault Operated” will
be reminded.

(4) “4 ClrErrRecd” menu: History information of the failures can be wiped clear
after confirmation

(5) “5 Stdset” menu: The grid standard can only be changed when the inverter is turned
off by LCD shut down. The change is ineffective under normal operation mode. Please refer

INSTRUCTION:

This function is effective only when the fault “IntFault0010~0150” in the
troubleshooting table occurs. The inverter may restore to normal
operation automatically if alarm or protection faults occur. This function
will not respond when the inverter is in operation mode and a
“FaultOperated” alarm interface will be indicated.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 83 of 120

to “5.2 Shut down” after the inverter stops working, and choose the grid standard as per the
local requirement of the electricity supply company.

4.4.7 System control parameters

The “1 SysPara” menu has 6 submenus, including “1 GridVProtect”, ”2
GridFProtect”, ”3 ON/OFF”, ”4 PowerContr”, ”5 LVRTSet” and ”6 OtherProtect”.
(1) ”1 GridVProtect” and ”2 GridFProtect” menus: Set up the parameters of grid
voltage, frequency protection and recovery, etc, as shown in Table 4.3:

Table 4.3 - Parameters of Grid Voltage and Frequency (IEEE-1547)

Parameter name

Description

Setup range (lower

limit, default & upper

limit)

GridV.Max1(V)

Threshold value of Level 1

Max. grid voltage

{200.0, 528.0, 552.0}

VMaxTripT1(S)

Threshold value of Level 1

Max. grid trip voltage

{0, 1.00, 600.00}

GridV.Min1(V)

Threshold value of Level 1

Min. grid voltage

{0, 422.4, 480.0}

VMinTripT1(S）

Threshold value of Level 1

Min. grid trip voltage

{0, 2.00, 600.00}

GridV.Max2(V)

Threshold value of Level 2

Max. grid voltage

{200.0, 576.0, 624.0}

VMaxTripT2(S)

Threshold value of Level 2

Max. grid trip voltage

{0, 0.16, 600.00}

GridV.Min2(V)

Threshold value of Level 2

Min. grid voltage

{0, 240.0, 480.0}

VMinTripT2(S)

Threshold value of Level 2

Min. grid trip voltage

{0, 0.16, 600.00}

NOTICE:

Please don’t change the grid standard when the inverter is in normal
operation mode, or the change is invalid. Please refer to the “5.2 Manual
Shutdown” to turn off the inverter.

INSTRUCTION:

PVI 36TL PV inverter supports 4 grid standards. Please check with your
local electricity supply company before selecting the grid standard. If the
inverter is operated with a wrong grid standard, the electricity supply
company may cancel the interconnection agreement.
Putting the inverter into operation before the overall system complies
with the national rules and safety regulations of the application is not
permitted.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 84 of 120

GridVmaxRecT(V)

Recovery threshold value of

Max. grid voltage

{200.0, 518.0, 533.0}

GridVminRecT(V)

Recovery threshold value of

Min. grid voltage

{0, 432.4, 480.0}

GridVRecT(S)

Recovery time of grid voltage

protection

{0, 300.00, 600.00}

GridF.Max1(Hz)

Protection threshold value of

Level 1 Max. grid frequency

{50.00, 60.50, 66.00}

FmaxTripT1(S)

Trip time of Level 1 Max. grid

frequency

{0, 0.16, 600.00}

GridF.Min1(Hz)

Protection threshold value of

Level 1 Min. grid frequency

{45.00, 59.30, 60.00}

FminTripT1(S)

Trip time of Level 1 Min. grid

frequency

{0, 0.16, 600.00}

GridF.Max2(Hz)

Protection threshold value of

Level 2 Max. grid frequency

{50.00, 61.00, 66.00}

FmaxTripT2(S）

Trip time of Level 2 Max. grid

frequency

{0, 0.05, 600.00}

GridF.Min2(Hz)

Protection threshold value of

Level 2 Min. grid frequency

{45.00, 57.00, 60.00}

FminTripT2(S)

Trip time of Level 2 Min. grid

frequency

{0, 0.16, 600.00}

GridFmaxRecT(Hz)

Recovery threshold value of

Max. grid frequency

{49.00, 60.40, 66.00}

GridFminRecT(Hz)

Recovery threshold value of

Min. grid frequency

{45.00, 59.40, 60.00}

GridFRecT(S)

Recovery time of grid

frequency protection

{0, 300.00, 600.00}

GridV.Unbal(%)

Threshold value of grid

voltage unbalance

{0.1, 2.6, 10.0}

(2) ”3 ON/OFF” menu: Set up the start-up and shut-down control parameters.

Table 4.4 - Start-Up and Turn-Off Control Parameters

Parameter name

Description

Setup range (lower limit,

default & upper limit)

PVStartVol(V)

PV start-up voltage

{300.0, 330.0, 400.0}

SoftStep(KW/S)

Soft step

{0.01,1.44,2.88}

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 85 of 120

SoftOffOption

Soft turn off option

{Disable, Disable, Enable}

OffPStep(KW/S)

Turn off power step

{0.01, 2.16,2.88}

IsoResis(KOhm)

Isolation resistance

{10.0, 250.0 1000.0}

GridReStep(KW/S)

Grid fault recovery step

{0.01, 0.05, 2.88}

(3) ”4 PowerContr” menu: relative functions of active, reactive power control and
over-frequency derating, including “ActiveContr(%)”, “RePowerContr”
and ”FreqDeratCtrl” menus.

1. “ActiveContr(%)” menu: adjust the active power of AC output, the range is
0~100.0%.

2. “RePowerContr” menu: set up the reactive power control mode, including 6
submenus: “1. None”, “2. Dispatch”, “3. Q Set”, “4. PF Set”, “5. PF(P) Set” and “6. Q(U)
Set”.

1 None
2 Dispatch
3 QReactSet
4 PF Set

→5 PF(P) Curve
6 Q(U) Curve

Figure 4.15 - Reactive Power Mode

1). None： No mode/disable reactive power mode

2). Dispatch： Remote power dispatch mode

Note: The ActivePower, PF and Q value can be adjusted by remote software if the
“Dispatch” is selected.

3). QReactSet： Set the Q value
Note: Change the reactive power by adjusting the Q value (reactive compensation)

4). PF Set： Set the PF value
Note: Change the reactive power by adjusting the PowerFactor

5). PF(P) Curve：PF curve mode
Note: The power factor changes according to the power change, as shown in Figure

4.16:

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 86 of 120

Figure 4.16 - PF(P) Curve Mode

6). Q(U) Curve：Q(U) curve mode
Note: The reactive compensation changes according to the grid voltage change, as

shown in Figure 4.17.

Capacitive

PF

-1

1

Inductive

(PFCurveP1,PFCurvePF1)

(PFCurveP2,PFCurvePF2)

(P%)

INSTRUCTION:

The PF (P) Curve function is only available for VDE-4105, CEI 0-21 and
IEEE-1547 grid standards.

INSTRUCTION:

The Q(U) curve function is only available for CEI 0-21 and IEEE-1547 grid
standards.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 87 of 120

Figure 4.17 - Q(U) Curve Mode

The Table 5-5 lists the parameters of QReactSet, PF Set, PF(P) Curve and Q(U) Curve
modes. Press ENT to start up the modes after the parameters are set up.

Table 4.5 - Parameters of Reactive Power Control (IEEE-1547)

Mode

Parameter Name

Setup range (lower limit,

default & upper limit)

Description

Q

ReactiveComp(%)

(-60.0%, 0.0%, 60.0%)

PF

PowerFactor

(-0.80, 1.000, 0.80)

PF(P)

PFCurveP1(%)

(0, 50.0%, 100.0%)

See Figure 5-17

PFCurvePF1

(-0.800, 1.000, 0.800)

See Figure 5-17

PFCurveP2(%)

(0, 100.0%, 100.0%)

See Figure 5-17

PFCurvePF2

(-0.800, -0.900, 0.800)

See Figure 5-17

PFCurvTripV(V)

(480.0, 480.0, 528.0)

PF curve trip voltage

PFCurveReV(V)

(422.4, 432.0, 480.0)

PF curve revocation

voltage

Q(U)

QuCurveU1(V)

(480.0, 518.4, 528.0)

See Figure 5-18

QuCurveQ1(%)

(-100.0%, 0.0%, 100.0%)

See Figure 5-18

QuCurveU2(V)

(480.0, 528.0, 528.0)

See Figure 5-18

Capacitive

Q(%)

_

+

Inductive

(QuCurveU2i,QuCurveQ2i)

U(V)

(QuCurveU1i,

QuCurveQ1i)

(QuCurveU1,

QuCurveQ1)

(QuCurveU2,QuCurveQ2)

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 88 of 120

QuCurveQ2(%)

(-100.0%, -50.0%, 100.0%)

See Figure 5-18

QuCurveU1i(V)

(422.4, 441.6, 480.0)

See Figure 5-18

QuCurveQ1i(%)

(-100.0%, 0.0%, 100.0%)

See Figure 5-18

QuCurveU2i(V)

(422.4, 432.0, 480.0)

See Figure 5-18

QuCurveQ2i(%)

(-100.0%, 50.0%, 100.0%)

See Figure 5-18

QuCurvTripP(%)

(5.0%, 20.0%, 100.0%)

Qu curve trip power

QuCurveReP(%)

(5.0%, 5.0%, 100.0%)

Qu curve revocation

power

3. “FreqDeratCtrl” menu: Set up the parameters of over-frequency active power
deraring.

(4) ”6 OtherProtect” menu: set up the threshold value of leakage current and output
DC component protection:

Table 4.6 - Protection Parameters of Leakage Current and Output DC Component

Parameter name

Description

Setup range (lower limit, default &

upper limit)

LeakCurMax(mA)

Leakage current

Max. limit

{300, 300, 500}*

IdcMax(mA)

DC component

current Max. limit

{216, 216, 500}*

* UL 1741 ground fault requirements

INSTRUCTION:

The “FreqDeratCtrl” function is not available for the IEEE-1547 grid
standard.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 89 of 120

4.4.8 Arc Fault Current Interruption

PVI 36TL is embedded with Type 1 DC arcing fault current detection device which
stops the inverter from working when arcing fault current is detected on the DC side
and shows “ARC Protect” on the LCD. This fault can only be cleared by manual
operation.

ARC Protect

Figure 4.18 - ARC Protect Fault

In the “System Setting””OtherCmd” menu, execute the “AFCI Test”, the
inverter will stop working and test AFCI. When the test is over, “TestFinish” will be

displayed on the LCD if no fault is detected or “AFCI Fault” will be shown if a fault
occurs, as shown in Figure 4.20.

MPPT Scan

AFCI Test

Testing

Figure 4.19 - AFCI Test

MPPT Scan

AFCI Test

TestFinish

AFCI Fault

Figure 4.20 - AFCI Test Result

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 90 of 120

In the “System Setting””OtherCmd” menu, execute “ARCFaultClear” command
to clear “ARC Protect” fault alarm, and LCD will show “Succeed” if the fault is

successfully cleared, as shown in Figure 4.21.

AFCIOperation

Enable

ARCFaultClear

Succeed

Figure 4.21 - Manually Clear “ARC Protect” Fault

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 91 of 120

5.0: Operation

5.1 Start-up

Manual Start-up: Manual start-up is required after regulation setting or manual

(fault) shut-down. Move the cursor from the main operation interface to “4 Setting”.
Press ENT and go to submenu “1 ON/OFF”. Then move the cursor to “ON” and press
ENT to start the inverter. Then the inverter will start up and operate normally if the
start-up conditions are met. Otherwise, the inverter will go to stand-by mode.

Automatic Start-up: The inverter will start up automatically when the output
voltage and power of PV arrays meet the set values, AC power grid is normal, and the
ambient temperature is within allowable operating range.

5.2 Shutdown

Manual Shutdown: Normally, it is not necessary to shut down the inverter, but it

can be shut down manually if regulation setting or maintenance is required.

Move the cursor from the main operation interface to “4 Setting”. Press ENT and
go to submenu “1 ON/OFF”. Move the cursor to “OFF” and press ENT, and then the

inverter will be shut down.

Automatic Shutdown: The inverter will be shut down automatically when the
output voltage and power of PV modules are lower than the set values, or AC power
grid fails; or the ambient temperature exceeds the normal range.

5.3 Operation Mode

There are 4 operation modes. The following are corresponding indications for
each mode.

(1) System check mode for startup, as shown in Figure 5.1:

Sys.Checking

>>>>>>

Figure 5.1 - System Self-Check Ongoing

This mode indicates that the inverter is checking whether it is ready for normal
operation after the manual start-up of inverter.

(2) Normal operation mode: Default indication interface for normal operation is
shown in Figure 5.2 (a) and 5.2 (b). The switching time between (a) and (b) is 5
seconds.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 92 of 120

(a) (b)

Figure 5.2 - Default Indication Interface for Normal Operation

In this mode, the inverter converts the power generated by PV modules to AC
continuously and feeds into the power grid.

(3) Standby mode, as shown in Figure 6-3:

The inverter will enter standby mode when the output voltage and power of PV
modules do not meet the startup conditions or PV voltage and input power are lower
than the set values. The inverter will check automatically whether it meets the startup
conditions in this mode until it turns back to normal mode. The inverter will switch
from standby mode to fault mode if a malfunction occurs.

Standby

>>>>>>

Figure 5.3 - Inverter System in Standby Mode

(4) Fault mode, as shown in Figure5.-4:

The inverter will disconnect from the power grid and turn into fault mode when
the inverter or power grid fails. Check the specific cause in “Troubleshooting table”
(Table 6.2) according to the fault message displayed on the LCD and eliminate the
fault referring to the instructions.

SPICommErr

PV1

400 V

15.1 A

=

~

480

6.0

80.2

08/12 13:10:05

kW

kwh

VAC

PV2

480 V

12.5 A

=

~

480

6.0

80.2

08/12 13:10:10

kW
kwh

VAC

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 93 of 120

Figure 5.4 - Fault Indication Interface

5.4 Grid-Tied Power Generation

PVI 36TL series inverter has an automatic grid-tied power generation process. It
will check whether AC power grid meets the conditions for grid-tied power generation
constantly, and test whether the PV array has enough adequate energy. After all
conditions are met, the inverter will enter grid-tied power generation mode. While in
the grid-tied power generation, the inverter can detect the power grid at all times,
and also keep the photovoltaic array output in maximum power point tracking (MPPT)
mode. In case of any abnormity, the inverter will enter the protection program
immediately. In low light conditions when power generation is not enough to keep the
inverter in operation, the inverter will enter standby mode. When the voltage of PV
array changes and becomes stable and higher than the required set value, the inverter
will attempt to start grid-tied power generation again.

WARNING:

All the installation and wiring connections should be performed by
qualified technical personnel. Disconnect the inverter from PV modules
and the AC supply before undertaking maintenance.
Do not operate or maintain the inverter until at least 5 minutes after
disconnecting all sources of DC and AC.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 94 of 120

6.0: Maintenance and De-Installation

6.1 Fault Shutdown and Troubleshooting

6.1.1 LED Fault and Troubleshooting

When contacting Solectria for support please provide the serial number of the
inverter, and the fault message. If the fault is regarding any voltage issue please also
measure the AC and DC voltage at the inverter prior to calling.

Please refer to the definition of LED lights in Table 4.1 and troubleshoot
according to Table 6.1:

Table 6.1 - Troubleshooting of LED Lights

LED fault status

Solutions

Neither the “Power” LED nor the LCD
lights up.

1. Turn off the external AC breaker

2. Switch the DC switch to “OFF”
position

3. Check the PV input voltage and
polarity

The “GRID” LED is blinking.

1. Turn off the external AC breaker

2. Switch the DC switch to “OFF”
position

3. Check whether the grid voltage
is normal and whether the cable
connection of AC side is correct
and secure

The “RUN” LED lights off or “FAULT” LED
lights up.

Refer to Table 7-2 for
troubleshooting

6.1.2 LCD fault and troubleshooting

The inverter will be shut down automatically if the PV power generation system
fails, such as output short circuit, grid overvoltage / under voltage, grid over
frequency / under frequency, high environmental temperature or internal malfunction
of the machine. The fault information will be displayed on the LCD. Please refer to
“4.4.2 Present Fault” for detailed operation.

The causes of a fault can be identified based on the faults listed in Table 6.2.
Proper analysis is recommended before contacting after-sales service. There are 3
types of fault: alarm, protection and hardware fault.

Table 6.2 - LCD Troubleshooting Table

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 95 of 120

Alarm

1.TempSensorErr

Definition:
Prompt detection of abnormal temperature

Possible causes:

1.Temperature sensor is reading -25C

2.Temperature Sensor socket connecter has poor
contact;

2.Temperature Sensor is damaged;

Recommended solutions:

1.Observe temperature display;

2.Switch off 3-phase working power supply and then
reboot the system;

3.Contact after-sales service personnel, inverter may
need replacement.

2.CommErr

Definition:
Communication inside inverter fails

Possible causes:
Terminal block connectors of internal communication
wires have poor contact

Recommended solutions:

1.Observe for 5 minutes and see whether the alarm
will be eliminated automatically;

2.Switch off 3-phase working power supply and then
reboot the system;

3.Contact after-sales service personnel

3.ExtFanErr

Definition:
Cooling fan failure, fan operates based on load and
temperature with variable speed control

Possible causes:

1.Fan is blocked;

2.Fan service life has expired;

3. Fan socket connecter has poor contact.

Recommended solutions:

1.Observe for 5 minutes and see whether the alarm
will be eliminated automatically;

2.Check for foreign objects on fan blades;

3.Switch off 3-phase work power supply and then
reboot the system;

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 96 of 120

4.Contact after-sales service personnel

4.EepromErr

Definition:
Internal alarm

Possible causes:
Internal memory has a problem

Recommended solutions:

1.Observe for 5 minutes and see whether the alarm
will be eliminated automatically;

2. The inverter is still producing power normally

3.Contact after-sales service personnel

Protection

1.TempOver

Definition:
Ambient or internal temperature is too high >70C

Possible causes:

1.Ambient temperature outside the inverter is too
high, very temperature is not over 70C;

2. Fan is blocked;

3. Convection airflow is insufficient due to improper
installation.

Recommended solutions:

1.Confirm that external ambient temperature is
within the specified range of operating temperature;

2.Check whether air inlet is blocked;

3.Check whether fan is blocked;

4.Check whether the location of installation is
appropriate or not;

5.Observe for 30 minutes and see whether the alarm
will be eliminated automatically;

6.Contact after-sales service personnel

2.GridV.OutLim

Definition:
Grid voltage exceeds the specified range,

Possible causes:

1.Grid voltage is abnormal or not present;
Power grid breaks down

2.Cable connection between the inverter and the grid
is poor;

Recommended solutions:

1.Observe for 10 minutes and see whether the alarm
will be eliminated automatically;

2.Check whether the grid voltage is within the
specified range, verify the AC circuit breaker has not
tripped;

3.Measure VAC between line to line and line to

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 97 of 120

neutral if more than 2.6% difference go to step 5

4.Check whether the cable between the inverter and
power grid is disconnected or has any fault;

5.Contact after-sales service personnel

3.GridF.OutLim

Definition:
Grid voltage frequency is abnormal, or power grid is
not detected

Possible causes:

1.Grid frequency is abnormal;

2.Cable connection between the inverter and the grid
is poor;

Recommended solutions:

1.Observe for 10 minutes and see whether the alarm
will be eliminated automatically;

2.Verify whether the grid frequency is within the
specified range;

3.Check whether the cable between the inverter and
power grid is disconnected or has any fault;

4.Contact after-sales service personnel

4.PVVoltOver*

Definition:
PV voltage exceeds the specified value

Possible causes:
PV over-voltage

Recommended solutions:

1.Observe for 30 minutes and see whether the alarm
will be eliminated automatically;

2.Check whether PV voltage exceeds the specified
range;

3.Turn off the PV input switch, wait for 5 minutes, and
then turn on the switch again;

4.Contact after-sales service personnel

5.PV1 (2) Reverse**

Definition:
PV module is connected inversely

Possible causes:
PV positive pole and negative pole are connected
inversely;

Recommended solutions:

1.Check whether positive pole and negative pole are
connected inversely;

2.Contact after-sales service personnel

6.GFCI.Err

Definition:
System leakage current is too high

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 98 of 120

Possible causes:

1.Excessive parasitic capacitance on PV module due
to environmental factor;

2.Grounding is abnormal;

3. Internal inverter fault

Recommended solutions:

1.Observe for 10 minutes and see whether the alarm
will be eliminated automatically;

2.Detect whether the electrical connection is
abnormal

3.Contact after-sales service personnel

7.IsolationErr

Definition:
Insulation impedance of PV positive to ground or PV
negative to ground exceeds the specified range

Possible causes:
Air humidity is high

Recommended solutions:

1.Observe for 10 minutes and see whether the alarm
will be eliminated automatically;

2.Check insulation of PV system;

3.Contact after-sales service personnel

8.ARC Protect

Definition:
Arc-fault

Possible causes:
Protection actions of ARC board

Recommended solutions:

1. Use “ARCFaultClear” to clear the Arc-fault.
(Refer to section 5.4.4)

2. Check if there is an arc in PV input or the
connection of PV cable is not good.

2. Contact after-sales service personnel

9.Arcboard Err

Definition:
Arcboard error

Possible causes:
Poor contact or damage of Arcboard

Recommended solutions:

1. Check whether the Arcboard is in good
condition

2. Use “ARCFaultClear” to clear the Arc-fault.
(Refer to section 5.4.4)

3. Contact after-sales service personnel

10.IntProtect0010~

Definition:

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 99 of 120

0620

Internal protection of the inverter

Possible causes:
Protection procedure occurs inside the inverter

Recommended solutions:

1.Observe for 10 minutes and see whether the alarm
will be eliminated automatically;

2.Contact after-sales service personnel

Fault

IntFault0010~0150

Definition:
Internal fault of the inverter

Possible causes:
Fault occurs inside the inverter

Recommended solutions:

1.The inverter can be forced to restart once if it is
required by operation and if it is confirmed that there
is no other problem;

2.Contact after-sales service personnel

6.2 Product Maintenance

6.2.1 Check the Electrical Connection

Check all the cable connections as a regular maintenance inspection every 6
months or once a year.

1.) Check the cable connections. If loose, please tighten all the cables referring to

“2.3 Electrical Installation”.

2.) Check for cable damage, especially whether the cable surface is scratched or

smooth. Repair or replace the cables if necessary.

INSTRUCTION:

*The actual display of “PV.VoltOver” is “PV1VoltOver” or “PV2VoltOver”.
*The actual display of “PV.Reverse” is “PV1Reverse” or “PV2Reverse”.

DANGER:

Please disconnect the inverter from AC grid and PV modules before
opening the equipment. Make sure hazardous high voltage and energy
inside the equipment has been discharged.
Do not operate or maintain the inverter until at least 5 minutes after
disconnecting all sources of DC and AC.

PVI 36TL Installation and Operation Manual (Rev H)

DOCR-070588-H Page 100 of 120

6.2.2 Clean the Air Vent Filter

The inverter can become hot during normal operation. It uses built in cooling
fans to provide sufficient air flow to help in heat dissipation.

Check the air vent regularly to make sure it is not blocked and clean the vent
with soft brush or vacuum cleaner if necessary.

6.2.3 Replace Cooling Fans

If the internal temperature of the inverter is too high or abnormal noise is heard
assuming the air vent is not blocked and is clean, it may be necessary to replace the
external fans. Please refer to Figure 6.1 for replacing the cooling fans.

1.) Use a No.2 Phillips head screwdriver to take off the 10 screws on the fan tray (6
screws on the upper fan tray, and 4 screws on the lower fan tray).

2.) Disconnect the waterproof cable connector from the cooling fan.

3.) Use a No.2 Phillips head screwdriver to take off the screws.

4.) Fix the new cooling fan on the fan tray, and fasten the cable on the fan tray with
cable ties
Torque value: 0.8-1N.m (8 in-lbs)

5.) Install the assembled fans back to the inverter.
Torque value: 1.2N.m (10 in-lbs)

1

2

4

3