Trannergy TRM025KTL User manual

User Manual

TRM025KTL/TRM030KTL/TRM033KTL/TRM035KTL

User Manual 1

Contents

1. Introduction ..............................................................................................................................................................4

1.1. Introduction .......................................................................................................................................................4

1.2. How to Use this manual.....................................................................................................................................4

1.3. Applied Designations (Warning, Caution, Note)...............................................................................................4

1.4. Important Safety Information ............................................................................................................................4

1.5. General Safety Rules for Working on Electrical Equipment.............................................................................5

1.6. System Sizing....................................................................................................................................................6

2. Technical Description of Inverters ...........................................................................................................................7

2.1. Mechanical design.............................................................................................................................................7

2.2. Electrical system design ....................................................................................................................................8

2.3. The illustration of derating and limit the input power.......................................................................................8

3. Operation mode illustration of the inverter ..............................................................................................................9

3.1. Wait mode..........................................................................................................................................................9

3.2. Check mode.......................................................................................................................................................9

3.3. Normal mode.....................................................................................................................................................9

3.4. Fault mode.........................................................................................................................................................9

3.5. Flash mode.......................................................................................................................................................10

3.6. Shut down........................................................................................................................................................10

4. Installation and startup............................................................................................................................................10

4.1. Installation precaution .....................................................................................................................................10

4.2. Install steps......................................................................................................................................................11

4.2.1 Install on the wall ......................................................................................................................................11

4.2.2 Install on the bracket..................................................................................................................................12

4.3. Electrical connection .......................................................................................................................................13

4.3.1. Connection to the grid (AC output)..........................................................................................................13

4.3.2. Connection to PV generator (DC input)...................................................................................................14

4.3.3. Grounding the inverter..............................................................................................................................17

4.4. Test run............................................................................................................................................................18

5. Human Machine Interface......................................................................................................................................19

5.1. Control and Display Panel...............................................................................................................................19

5.2. LED Display....................................................................................................................................................20

2 User Manual

5.3. LCD Display....................................................................................................................................................21

5.4. Function Keys..................................................................................................................................................23

5.4.1. Configure..................................................................................................................................................23

5.4.2. Energy yield..............................................................................................................................................26

5.4.3. Inverter state .............................................................................................................................................26

5.4.4. Device Information...................................................................................................................................27

5.4.5. log Information.........................................................................................................................................27

5.5. Display of Fault...............................................................................................................................................27

6. Communication and Monitoring.............................................................................................................................28

6.1. Communication Interfaces...............................................................................................................................28

6.2. Communication ...............................................................................................................................................28

6.2.1. RS-232 Communication ...........................................................................................................................28

6.2.2. RS-485/422 Communication....................................................................................................................29

6.2.3. WiFi/GPRS/Ethernet Communication......................................................................................................29

6.2.4. USB Communication................................................................................................................................29

6.3. Monitoring System..........................................................................................................................................30

7. Maintenance and Repair.........................................................................................................................................30

7.1 Routine maintenance ........................................................................................................................................30

7.2 Notes of maintain or service.............................................................................................................................31

7.3 Safety for maintain or service...........................................................................................................................31

7.4 Replacing the string fuses.................................................................................................................................31

8. Technical data.........................................................................................................................................................32

9. Warranty.................................................................................................................................................................33

9.1. Standard Warranty Period................................................................................................................................33

9.2. Extension of Warranty.....................................................................................................................................33

9.3. Liability Insurance...........................................................................................................................................33

9.4. Warranty Claim Procedure..............................................................................................................................33

9.5. Exclusion of Warranty Claims.........................................................................................................................34

9.6. Service after Warranty Expiration...................................................................................................................34

10. Contact Information..............................................................................................................................................35

Appendix A: FAQ (Frequently asked questions) .......................................................................................................36

Appendix B: Abbreviation..........................................................................................................................................37

User Manual 3

The copyright of this manual belongs to Trannergy Co., Ltd.. Any corporation or individual should not

plagiarize, partially copy or fully copy it (including software, etc.), and no reproduction or distribution of

This manual is subject to change according to user’s or customer’s feedback. Please check latest version

at: http://www.trannergy.com.

4 User Manual

1. Introduction

1.1. Introduction

This manual describes Trannergy solar inverters TRM025KTL/030KTL/ 033KTL/035KTL. These

products are among the most technologically advanced and efficient inverters on the market and are

designed to ensure a stable power supply for many years.

The TRM inverter is a transformerless based inverter.

1.2. How to Use this manual

Please read the safety instructions in this manual first. Throughout the manual it is assumed that the

reader is familiar with AC and DC installations and knows the rules and regulations for electrical

equipment and for connecting it to the utility AC grid. It is especially important to be familiar with

the general safety rules for working with electrical equipment.

1.3. Applied Designations (Warning, Caution, Note)

Throughout the manual important information is shown at different levels depending on the character

of the information, as shown here:

Safety information important for human safety. Violation of warnings may result in

injury to persons or death.

Information important for the protection of property. Violation of this type of

information may cause damage and loss of property.

Useful additional information or “Tips and Tricks" on specific subjects.

1.4. Important Safety Information

Read this before installing, operating or maintaining the inverter.

Before installation:

Check for damage to inverter and packaging. If you are in doubt, please contact your

supplier before installing the inverter. Check the voltages of the solar modules and make

sure they are within the limits of the Trannergy inverter specifications before connecting

them to the inverter.

Installation:

Only trained and authorized personnel familiar with local electrical codes may install the

inverter. For optimum safety, please follow the steps described in this manual. Keep in

mind that the inverter has two voltage carrying sides, the PV input and the AC grid.

Disconnecting the inverter:

Always disconnect the AC line first! Afterwards disconnect the PV lines. Note that the

inverter can still be charged with very high voltages at hazardous levels even when it is

User Manual 5

disconnected from grid/mains and solar modules. Wait at least 20 min. before

proceeding, after having disconnected from grid and PV panels.

operating the inverter:

Before connecting the AC grid to the inverter, make sure that the installation cover is

mounted again. The inverter must not be open during operation.

Maintenance and modification:

Only authorized personnel are allowed to repair or modify the inverter. To ensure

optimum safety for user and environment, only the original spare parts available from

your supplier should be used.

Functional safety parameters:

Unauthorized changes of functional safety parameters may cause injury or accidents to

people or inverter. Additionally it will lead to the cancelling of all inverter operating

approval certificates. The Trannergy inverters in the TRM range are all designed

according to international safety requirements.

If non-original spare parts are used, the compliance with CE guidelines in respect of

electrical safety, EMC and machine safety is not guaranteed.

1.5. General Safety Rules for Working on Electrical Equipment

All persons installing, maintaining or servicing inverters should be trained in and have experience

with the general safety rules to be observed when working on electrical equipment.

Installation and service personnel should also be familiar with local requirements, rules and

regulations as well as safety requirements.

To provide a general guideline for safety precautions, five well-known and widely accepted rules are

repeated below. The list should by no means be considered as exhaustive.

The person performing work on electrical equipment is responsible for the safety of

persons and property!

Disconnecting

Disconnect all cables supplying voltage to the working place before starting any work.

Please note that a lack of voltage is no guarantee that disconnection has been performed.

Protecting against reconnection

Prevent the system from reconnecting by marking, closing or locking off the work area.

Unintentional reconnection may result in severe accidents.

Checking that system is voltage free

Ascertain conclusively by means of a voltage tester that the system is voltage free. Check

all terminals to ensure that the system is voltage free (on each individual conductor).

Covering adjacent voltage-carrying components and preventing persons from gaining

access to them

Cover up all voltage-carrying system components that can harm you while working.

Make sure that danger areas are clearly marked.

6 User Manual

1.6. System Sizing

When dimensioning a photovoltaic system, it must be ensured that the open circuit

voltage of the PV string never exceeds the maximum permissible input voltage of 1000V

DC. The PV string open circuit voltage during parallel string operation is 910V. Higher

voltages may result in permanent damage to the inverter.

The selection of PV string output should be based on the optimum utilization of the invested capital

compared to the expected annual energy yield from the system. This optimization depends on local

weather conditions and should be considered in each individual case.

The inverter incorporates an input power limiting device, which automatically keeps the power at

levels that are safe for the inverter. The limitation depends mainly on internal and ambient

temperatures. The limitation is calculated continuously and always allows the maximum possible

amount of energy to be produced.

Please use the tool supplied by Trannergy when dimensioning a photovoltaic system.

User Manual 7

2. Technical Description of Inverters

2.1. Mechanical design

Figure 2-1 shows the outline dimensions of TRM025KTL/030KTL/033KTL /035KTL:

780

590 230

Figure 2-1 Outline dimensions of TRM025KTL/030KTL/033KTL/035KTL

The DC switch is the most length part at the left of inverter, so take care of

the DC switch terminal.

Figure 2-2 shows the electrical terminals of TRM Series Inverter:

DC SWITCH DC INPUT TERMINALS COMMUNICATION TERMINALS

AC OUTPUT TERMINALS

Figure 2-2 Electrical Terminals of TRM Series Inverter

For safety reasons, the use of a DC switch is recommended. Between the

PV modules and the power modules may be mandatory in some countries.

8 User Manual

2.2. Electrical system design

Figure 2-3 wiring diagram of the whole TRM inverter system

Please refer to chapter 4 for the detail connecting and install methods.

2.3. The illustration of derating and limit the input power

To avoid inverter to be damaged by over temperature or over current.

Not output power when the temperature of power devices is over 100℃or the ambient

temperature is over 75℃.

Derate the output power linearly when the temperature of power devices is between 93-100℃or

the ambient temperature is between 71-75℃.

User Manual 9

3. Operation mode illustration of the inverter

TRM inverter has five operation modes during the whole work process; they are wait, check, normal,

fault and flash modes. Its detail illustration is shown by Figure 3-1 below.

Shut Down

Wait Mode

Fault Mode

Flash Mode Normal Mode

Check Mode

Default:

Unrecoverable

Fault

Flash Event

Satisfy the power on condition

Have warning code

Flash Event

Check no errors

Have Fault event

Have warning events

or power off cmd

Have Fault event

Recoberable fault cleared in 5s

Vpv<200Vdc

Figure 3-1 State Machine of Inverter working mode

3.1. Wait mode

When the input power by solar panel is not enough to let the power module work, it is at waiting

mode. The inverter will wait until the input voltage is above 300Vdc and below 910Vdc, it turn to

check mode.

3.2. Check mode

When the inverter is power on, it will check isolation, HCT device, GFCI device, relay, fan, and soft

start automatically in order. This can guarantee the inverter work normally and turn to normal

operation mode.

3.3. Normal mode

When the conditions above are satisfied, inverter will let the BOOST and inverter module work and

turn to normal generating power mode. It will change the solar energy into electrical energy and fed it

into grid based on advanced MPPT technology in order to absorb solar energy in maximum extent

possible. It will also calculate the generated energy per day/per month/per year automatically, save

the number in EEPROM and the number can be read from the HMI.

3.4. Fault mode

When there are fault during the inverter running, it will stop generating power and turn to fault mode

and display the fault information on LCD. Before do this, it will store the generated power number

into EEPROM automatically. Many not very serious fault will be cleared after 5s automatically and

This manual suits for next models

Table of contents

Other Trannergy Inverter manuals

Trannergy

Trannergy PVI 5400TL User manual

Trannergy

Trannergy TRN010KTL User manual

Trannergy

Trannergy TRB010KTL User manual

Trannergy

Trannergy PVI1300TL User manual

Popular Inverter manuals by other brands

Fourgroup

Fourgroup Easy use and Programming Handbook

Velleman

Velleman PI300M user manual

Sungrow

Sungrow SG350HX-US user manual

WilTec

WilTec 61897 Operation manual

SMA

SMA SUNNY BOY STORAGE 2.5 Quick reference guide

Simplicity

Simplicity LANDLORD 316 product manual

Santak

Santak SMAX 3000 user manual

ATON

ATON RA.Store-3 user manual

ZIEHL-ABEGG

ZIEHL-ABEGG FXET4AMQ operating instructions

Tektronix

Tektronix CFG250 Operator's manual

Champion

Champion 200989 Operator's manual

Vanner

Vanner 20-500 Series owner's manual

GE GEP user manual

Astrel Group

Astrel Group Power Reducer Installation and instruction manual

MULTIQUIP

MULTIQUIP GDP-5H Operation and parts manual

GoWISE

GoWISE PS1007 user manual

Promate

Promate PM13500D ES Operator's manual

Mastervolt

Mastervolt WHISPER 3.5M3000 RPM user manual