V-TAC VT-6607105 User manual

HYBRID INVERTER
INTRODUCTION
INSTRUCTION MANUAL
Thank you for selecting and buying V-TAC product. V-TAC will serve you the best. Please read these
instructions carefully before starting the installation and keep this manual handy for future reference. If you
have any another query, please contact our dealer or local vendor from whom you have purchased the
product. They are trained and ready to serve you at the best. The warranty is valid for 5 years from the date
of purchase. The warranty does not apply to damage caused by incorrect installation or abnormal wear and
tear. The company gives no warranty against damage to any surface due to incorrect removal and
installation of the product. This product is warranted for manufacturing defects only.
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Please scan the QR code to access the manual in
multiple languages.
IN CASE OF ANY QUERY/ISSUE WITH THE PRODUCT, PLEASE REACH OUT TO US AT: [e-mail]
FOR MORE PRODUCTS RANGE, INQUIRY PLEASE CONTACT OUR DISTRIBUTOR OR NEAREST DEALERS.
V-TAC EUROPE LTD. BULGARIA, PLOVDIV 4000, BUL.L.KARAVELOW 9B
MODEL VT-6607105
SKU 11819

1. About This Manual . . . . . . . . . . . . . . . . . . . . . .
1.1 Scope of Validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Target Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. Safety & Symbols . . . . . . . . . . . . . . . . . . . . . . .
2.1 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Explanations of Symbols . . . . . . . . . . . . . . . . . . . . . . . . .
3. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 Basic Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 Operation Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.1 Self-Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.2 Time of Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.3 Selling First . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.4 Back-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. Installation. . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1 Pre-installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.1 Unpacking & Package List . . . . . . . . . . . . . . . . . . . . . . . .
4.1.2 Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.3 Mounting Location . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.1 PV Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.2 Battery Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.2.1 BAT-CAN/RS485 . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.2.2 BAT-NTC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.3 Multi Inverter Parallel . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.4 AC Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.5 CT or Meter Connection . . . . . . . . . . . . . . . . . . . . . . . . .
4.4 Communication Connection. . . . . . . . . . . . . . . . . . . . . . . .
4.5 Earth Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents
Contents
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5. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1 Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2 Menu Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3 Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.1 Time & Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.3 Lithium Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.4 PV Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.5 Lead Acid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.6 Energy Management System (EMS Param) . . . . . . . . . . . . . . . .
5.3.7 Timing of Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.8 AC Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.9 Forced Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.10 Forced Discharging. . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.11 Protection Parameters . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.12 Multi-machine in Parallel . . . . . . . . . . . . . . . . . . . . . . . .
5.3.13 Diesel Generator Setting (Diese1 Gen Param) . . . . . . . . . . . . . .
6. Power ON/OFF . . . . . . . . . . . . . . . . . . . . . . . .
6.1 Power ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2 Power OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.3 Restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7. Maintenance & Trouble Shooting . . . . . . . . . . . . . .
7.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2 Trouble Shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8. Specifications . . . . . . . . . . . . . . . . . . . . . . . .
Contents
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47

1.About This Manual
1.1 Scope of Validity
1.2 Target Group
This manual mainly describes the product information, guidelines for installation,
operation, maintenance and troubleshooting. And this manual applies to VTAC
Single Phase Hybrid Inverter.
2.Safety & Symbols
2.1 Safety Precautions
1. All work on the inverter must be carried out by qualified electricians.
2. The PV panels and inverter must be connected to the ground.
3. Do not touch the inverter cover until 5 minutes after disconnecting both DC
and AC power supply.
4. Do not touch the inverter enclosure when operating, keep away from materials
that may be affected by high temperatures.
5. Please ensure that the used device and any relevant accessories are disposed
of in accordance with applicable regulations.
6. VTAC inverter should be placed upwards and handled with care in delivery. Pay
attention to waterproof. Do not expose the inverter directly to water, rain, snow or
spray.
7. Alternative uses, modifications to the inverter not recommended. The warranty
can become void if the inverter was tampered with or if the installation is not in
accordance with the relevant installation instructions.
This manual is for qualified personnel. The tasks described in this manual must
only be performed by qualified personnel.
VT-6607105
Please keep this manual available all the time in case of any emergency.
About This Manual
01

VTAC inverter strictly comply with relevant safety standards. Please read and
follow all the instructions and cautions during installation, operation and
maintenance.
2.2 Explanations of Symbols
Safety & Symbols 02
Danger of electric shock
The inverter contains fatal DC and AC power. All work on the inverter
must be carried out by qualified personnel only.
Beware of hot surface
The inverter’s housing may reach uncomfortably hot 60°C (140°F) under high
power operation. Do not touch the inverter enclosure when operation.
Residual power discharge
Do not open the inverter cover until 5 minutes after disconnection both
DC and AC power supply.
Do not dispose of this device with the normal domestic waste.
CE mark
The inverter complies with the requirements of the applicable
CE guidelines.
Refer to manual before service.
Important notes
Read all instructions carefully. Failure to follow these instructions,
warnings and precautions may lead to device malfunction or damage.

3. Introduction
3.1 Basic Instruction
The VTAC hybrid inverters are designed to increase energy independence for
homeowners. Energy management is based on time-of-use and demand charge
rate structures, significantly reduce the amount of energy purchased from the
public grid and optimize self-consumption.
Introduction
03
3.2 Operation Modes
3.2.1 Self-Use
PV Array
Grid
Meter
Hybrid Inverter
 Generator  
TV
The Self-Use mode is for the regions with low feed-in tariff and high electricity
prices. The energy produced by the PV system is used to optimize
self-consumption needs. The excess energy is used to recharge the batteries,
any remaining excess is then exported to the grid.
TV
Energy flow:
PV → Load → Battery → Grid
1
2
3

Introduction 04
The Time of Use mode is designed to reward customers who do their part to
reduce demand on the electric grid, particularly during peak usage periods. Use
most of your electricity from PV energy and during off-peak time periods, and you
could significantly lower your monthly bill.
When select 0 W under P_Feed menu, the inverter will export zero energy to the
grid.
When select xx W under P_Feed menu, the inverter will export customized
energy to the grid.
3.2.2 Time of Use
A. Charge Setting
PV Charge Mode
4 periods of time charge setting.
4 periods of time charge setting.
Note: Advance Setting
TV
Energy flow:
PV and Grid → Battery → Load
2
1
TV
Energy flow:
PV → Battery → Load → Grid
2
1
3
AC Charge Mode
Note:
After select AC charge,
when PV have no sufficient
power, AC will also charge
the battery.

Introduction
05
B. Discharge
4 periods of time discharge setting
Energy flow: Battery and PV → Load → Grid
TV
1
2
TV
1
2
C. Forbidden Discharge
4 periods of time discharge setting, the battery will be charged firstly.
TV
Energy flow:
PV → Battery → Load → Grid
2
1
3

Introduction 06
Energy flow: PV and Battery → Load
TV
1
TV
1
3.2.3 Selling First
The Selling First mode is suitable for the regions with high feed-in tariff.
TV
Energy flow:
PV → Load → Grid → Battery
1
3
2
3.2.4 Back-Up
When the grid fails, the system will automatically switch to Back-Up mode. The
back-up loads can be supplied by both PV and battery energy.

Installation
07
4. Installation
4.1 Pre-installation
4.1.1 Unpacking & Package List
Unpacking
On receiving the inverter, please check to make sure the packing and all
components are not missing or damaged. Please contact your dealer directly for
supports if there is any damage or missing components.
Package List
Open the package, please check the packing list shown as below.
3
76 9 10
5
Monitoring
Quick
Installation
Instructions
54
1
Quick
Installation
Instructions
Warranty
Card
2
12 514
13
2019
11
Certificate
Of Inspection
17
515 16 18
8

Introduction 08
4.1.2 Product Overview
No. Qty Items No. Qty Items
1
1
1
1
1
1
4
1
4
2
Hybrid Inverter
Certificate Of Inspection
Quick Installation Instructions
Warranty Card
Monitoring Quick Installation Instructions
Wall Mounting Bracket
AC Wiring Cover Screw
Security Screw
1
1
1
1
2
3
3
1
1
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CT
AC Wiring Terminal AC Waterproof Cover
Communication Adapter
Grounding Terminal
Battery Connector
Monitor Module
DC Connector
Mounting Bracket Screw
Plastic Expansion Tube
Smart Meter (Opitional)
Communication Connectors
370mm
513mm
192mm

Installation
09
Inverter Terminals
The inverters are designed for indoor and outdoor installation (IP65), to increase
the safety, performance and lifespan of the inverter, please select the mounting
location carefully based on the following rules:
• The inverter should be installed on a solid surface, far from flammable or
corrosion materials, where is suitable for inverter’s weight and dimensions.
• The ambient temperature should be within -25℃~ 60℃(between -13 °F and
140°F).
• The installation of inverter should be protected under shelter. Do not expose
the inverter to direct sunlight, water, rain, snow, spray lightning, etc.
4.1.3 Mounting Location
62
3
1 4 5
7
No. Items
DC Switch
DC Connectors ( + ) For PV Strings
DC Connectors ( − ) For PV Strings
Battery Port
1
2
3
4
No. Items
Communication Port
AC Port & EPS Port
Monitor Module Port
5
6
7

Installation 10
The inverter should be installed vertically on the wall, or lean back on plane
with a limited tilted angle. Please refer to below picture.
Leave the enough space around inverter, easy for accessing to the inverter,
connection points and maintenance.
<15°
>0°
Max
300mm
300mm 300mm
500mm
50mm

Installation
11
4.2 Mounting
Step 1
Step 3
Step 2
264mm
219mm
17mm
Security
screw

Installation 12
4.3 Electrical Connection
Communication Adapter pin assignment
Grid
PV Array
PV Array
Smart meter


TV
12345678
No. COM2
1
2
3
4
5
6
7
8
COM1
NTC+
NTC-
Dry Contact
Dry Contact
DRM
DRM
CTU
CTN
Meter 485A
Meter 485B
BAT 485A
485A
485B
BAT CANH
BAT CANL
BAT 485B
Note:
For diesel generators or multi-machine parallel use, please contact the
manufacturer, and provide installation and operation instructions
separately.
Smart meter

Installation
13
• The open-circuit voltage and short-circuit current of PV string should not exceed
the reasonable range of the inverters.
• The isolation resistance between PV string and ground should exceed 300 kΩ.
• The polarity of PV strings are correct.
• Use the DC plugs in the accessory.
• The lightning protector should be equipped between PV string and inverter.
• Disconnect all of the PV (DC) switch during wiring.
4.3.1 PV Conneon
The hybrid inverter has two MPPT channels, can be connected
with two strings of PV panels. Please make sure below requirements are
followed before connecting PV panels and strings to the inverter:
Step 1
Note:
PV cable suggestion
Cross-section
4mm²
Warning:
The fatal high voltage may on the DC side, please comply with
electric safety when connecting.
Please make sure the correct polarity of the cable connected with
inverter, otherwise inverter could be damaged.

Installation 14
Note:
Please use PV connector crimper to pinch the point of the arrow.
Step 2
Step 3
Note:
You’ll hear click sound when the connector assembly is correct.
Hybrid inverters are compatible with lithium battery. For lead acid
battery or batteries with other brands, please confirm with local distributor or
VTAC for technical support.

Note:
Set battery type and manufacturer, please refer to Chapter 5.3.
BMS(Battery Management System)communication is needed
between inverter and battery.
MC
MC
!

Installation
15
Note:
Battery cable suggestion Cross - section 8-10 AWG
Please make sure the battery polarities are correct.
Battery cable
19±1mm
Step 1
Pass the crimped battery harness through the waterproof connector and the cover.
Insert the wire harness into the terminals according to “+” and “-” polarity, make the
insulated terminals parallel with the terminals , the crimping screw torque is 2.0±0.1N.m
Step 2
Step 3

Installation 16
A “click” sound will be heard when the connector assembly is correct.
Step 4
Use an open-end wrench to tighten the waterproof lock.
Step 5
Insert the battery connector into the inverter, if hear a “click”, it means the battery
connection is finished.
Step 6

Installation
17
4 5
4.3.2.1 BAT-CAN/RS485
CAN/RS485
Lithium
4.3.2.2 BAT-NTC
NTC
3-8
1
2
PIN Assignment
NTC-
NTC+
RJ45 Plug
12345678
/
Lead Acid
PIN Assignment
1PIN 2 3 6 7 8
5
1-3
4CANH
/
6-8
CANL
/
2345678
PIN Assignment
1PIN
4-5
1-2
3RS485A
/
6
/
7-8 /
RS485B