Zeversolar Eversol TL1000-20, Eversol TL2000-20, Eversol TL1500-20, Eversol TL3000-20 Installation And Operating Instructions
540 -0 010 8- 01
Eve rsol TL 1000- 20/TL 1500- 20/TL 2000- 20/TL 3000- 20 Sola r Inver ters
01
REV
DAT E
Installation and Operating Instructions V01 1
Table of Contents
1 Notes on this Manual .......................................................................................... 4
1.1 Area of validity ............................................................................................................................................... 4
1.2 Target group .................................................................................................................................................. 4
1.3 Symbols used in this manual ................................................................................................................ 5
2 Safety ................................................................................................................. 6
2.1 Intended use.................................................................................................................................................... 6
2.2 Safety standards ........................................................................................................................................ 6
2.3 Important safety information .............................................................................................................. 7
2.4 Symbols on the type label .................................................................................................................... 8
2.5 Basic safety protection ........................................................................................................................... 9
3 Unpacking .......................................................................................................... 10
3.1 Scope of delivery ....................................................................................................................................... 10
3.2 Checking for transport damage ....................................................................................................... 10
4 Mounting ............................................................................................................. 11
4.1 Ambient conditions ..................................................................................................................................... 11
4.2 Selecting the mounting location ....................................................................................................... 13
4.3 Mounting the inverter with the wall mounting bracket ....................................................... 14
5 Electrical Connection ........................................................................................ 16
5.1 Safety ............................................................................................................................................................... 16
5.2 System layout of units without integrated DC switch ......................................................... 17
5.3 Overview of the connection area ..................................................................................................... 17
5.4 AC connection ............................................................................................................................................. 18
5.4.1 Conditions for the AC connection ........................................................................................... 18
2 V01 Installation and Operating Instructions
5.4.2 Grid connection ................................................................................................................................ 19
5.4.3 Second protective grounding connection ....................................................................... 22
5.4.4 Residual current protection .................................................................................................... 23
5.4.5 Overvoltage category ................................................................................................................ 24
5.4.6 Circuit breaker................................................................................................................................. 24
5.5 DC connection ........................................................................................................................................... 25
5.5.1 Conditions for the DC connection ......................................................................................... 25
5.5.2 Assembling the DC connectors ............................................................................................. 27
5.5.3 Disassembling the DC connectors ...................................................................................... 29
5.5.4 Connecting the PV array ........................................................................................................... 30
6 Communication ................................................................................................ 32
6.1 System monitoring via RS485 .......................................................................................................... 32
6.2 Updating the firmware via RS485 ................................................................................................. 35
7 Operation .......................................................................................................... 36
7.1 Overview of the control panel .......................................................................................................... 36
7.1.1 Display ...................................................................................................................... 37
7.1.2 Control button ........................................................................................................ 38
7.1.3 LEDs ......................................................................................................................... 39
7.2 Display messages ................................................................................................................................... 40
7.3 Language and safety regulation settings .................................................................................. 42
7.3.1 Language setting ................................................................................................................................... 42
7.3.2 Safety regulation setting ................................................................................................................. 42
8 Commissioning ................................................................................................. 44
8.1 Electrical tests ............................................................................................................................................44
8.2 Mechanical tests ...................................................................................................................................... 45
8.3 Start-Up ........................................................................................................................................................ 45
9 Disconnecting the Inverter from Voltage Sources ....................................... 46
Installation and Operating Instructions V01 3
10 Technical Data ................................................................................................ 47
10.1 DC input data .............................................................................................................................................. 47
10.2 AC output data ........................................................................................................................................ 48
10.3 Safety regulations ................................................................................................................................ 49
10.4 General data ............................................................................................................................................. 50
10.5 Efficiency ..................................................................................................................................................... 51
10.5.1 Efficiency curve TL1000-20 ................................................................................................... 51
10.5.2 Efficiency curve TL1500-20 ................................................................................................. 52
10.5.3 Efficiency curve TL2000-20 ................................................................................................ 53
10.5.4 Efficiency curve TL3000-20 ................................................................................................ 53
10.6 Power reduction ..................................................................................................................................... 54
11 Troubleshooting .............................................................................................. 56
12 Maintenance .................................................................................................... 58
12.1 Cleaning the contacts of the DC switch ..................................................................................... 58
12.2 Cleaning the heat sink ......................................................................................................................... 58
13 Recycling and Disposal ................................................................................... 58
14 Contact ............................................................................................................ 59
4 V01 Installation and Operating Instructions
1 Notes on this Manual
General Notes
The Eversol is a transformerless PV inverter with a single MPP tracker. It converts
the direct current (DC) from a photovoltaic (PV) array to grid-compliant alternating
current (AC) and feeds it into the utility grid.
1.1 Area of validity
This manual describes the mounting, installation, commissioning and maintenance of
the following Zeversolar inverters: Eversol TL1000-20, TL1500-20, TL2000-20,
TL3000-20
Observe all documentation that accompanies the inverter. Keep them in a convenient
place and available at all times.
1.2 Target group
This manual is for qualified electricians only, who must perform the tasks exactly
as described.
All persons installing inverters must be trained and experienced in general safety
which must be observed when working on electrical equipments. Installation
personnel should also be familiar with local requirements, rules and regulations.
Installation and Operating Instructions V01 5
WARNING!
WARNING indicates a hazardous situation which, if not avoided, can result in
death or serious injury.
CAUTION!
CAUTION indicates a hazardous situation which, if not avoided, can result in
minor or moderate injury.
NOTICE!
NOTICE indicates a situation which, if not avoided, can result in property damage.
INFORMATION!
INFORMATION provides tips which are valuable for the optimal installation and
operation of the inverter.
1.3 Symbols used in this manual
The safety precautions and general information are used in this manual as follows:
DANGER indicates a hazardous situation which, if not avoided, will result in death or
serious injury.
DANGER!
6 V01 Installation and Operating Instructions
2 Safety
2.1 Intended use
2.1.1. Eversol converts the direct current from a PV array into grid-compliant
alternating current.
2.1.2. Eversol is suitable for indoor and outdoor use.
2.1.3. Eversol must only be operated with PV arrays (PV modules and cabling) of
protection class II, in accordance with IEC 61730, application class A.
Do not connect any sources of energy other than PV modules to the Eversol.
2.1.4. PV modules with a high capacitance to ground must only be used if their
coupling capacitance does not exceed 1.0μ F.
2.1.5. When the PV modules are exposed to sunlight, a DC voltage is supplied to this
equipment.
2.1.6. When designing the PV system, ensure that the values comply with the
permitted operating range of all components at all times. The free design
program "Zeverplan" (http://www.zeverplan.com) will assist you.
2.2 Safety standards
Eversol inverters comply with the EU Low-Voltage Directive 2006/95/EC and the
EMC Directive 2004/108/EC. They are labeled with the CE mark. For more
information about certificates in other countries and regions, please visit website
www.zeversolar.com.
Installation and Operating Instructions V01 7
• All work on the inverter must only be carried out by qualified personnel who
have read and fully understood all safety information contained in this
manual.
• Children must be supervised to ensure that they do not play with this device.
WARNING!
Risk of injury due to electric shock and fire caused by high leakage current!
• The inverter must be reliably grounded in order to protect property and
personal safety.
CAUTION!
Risk of injury due to hot heat sink!
• The heat sink may get hot during operation. Do not touch!
CAUTION!
Possible damage to health as a result of the effects of electromagnetic
radiation!
• Please maintain a distance of at least 20cm from the inverter when it is in
operation
NOTICE!
Grounding the PV array!
• Comply with local regulations for grounding the PV array. We suggest the
frames of PV modules must be reliably grounded.
• Do not ground any of the terminals of the strings.
2.3 Important safety information
DANGER!
Danger to life due to high voltages in the inverter!
8 V01 Installation and Operating Instructions
2.4 Symbols on the type label
Symbol
Explanation
Beware of high voltage and operating current.
The inverter operates at high voltage and current. Work on the
inverter must only be carried out by skilled and authorized
electricians.
Beware of hot surfaces.
The inverter can get hot during operation. Avoid contact during
operation.
Do not dispose of this inverter with household waste.
For more information on disposal, please refer to Section 13
“Recycling and disposal”.
CE mark.
The inverter complies with the requirements of the applicable EC
guidelines.
Certified safety
The product is TUV-tested and complies with the requirements of the
German Equipment and Product Safety Act.
RCM
The product complies with the requirements of the applicable
Australian low-voltage and electromagnetic compatibility standards.
Capacitors discharge
Before opening the covers, the inverter must be disconnected from
the grid and PV array. Wait at least five minutes to allow the energy
storage capacitors to fully discharge.
Refer to the manual accompanying the inverter.
Risk of danger, warning and caution
Safety information important for human safety. Failure to observe
the safety information in this manual may result in injury or death.
Installation and Operating Instructions V01 9
2.5 Basic safety protection
We provide the following safety protection:
1) Over-voltage, under-voltage protection
2) Over-frequency, under-frequency protection
3) Over-temperature monitoring
4) Residual current monitoring
5) Insulation monitoring
6) Anti-islanding protection
7) DC feed-in monitoring
10 V01 Installation and Operating Instructions
3 Unpacking
3.1 Scope of delivery
Object
Description
Quantity
A
Inverter
1 piece
B
Wall mounting bracket
1 piece
C
Mounting accessory kit:
terminal lug (1 pc.), screw anchors (4 pcs.),
hexagon bolts (4 pcs.), ground washer (1 pcs.),
large plain washers (6 pcs.),
M5×12 pan head screw (2 pcs.)
1 set
D
DC connector
2 units (for TL1000-20&
TL1500-20&TL2000-20)
4 units (for TL3000-20)
E
AC plug
1 piece
F
Documentation
1 set
A B C
D E F
Carefully check all of the components in the carton. If anything is missing, contact
your dealer.
3.2 Checking for transport damage
Thoroughly inspect the packaging upon delivery. If you detect any damage to the
packaging which indicates the inverter may have been damaged, inform the
responsible shipping company immediately. We will be glad to assist you if required.
Installation and Operating Instructions V01 11
4 Mounting
4.1 Ambient conditions
1. Be sure the inverter is installed out of the reach of children.
2. Mount the inverter in areas where it cannot be touched inadvertently.
3. Ensure good access to the inverter for installation and possible service.
4. Observe the minimum clearances to walls, other inverters, or objects as
follows to ensure that heat can escape.
Clearances for one inverter
Clearances for multiple inverters
Direction
Min. clearance（mm）
above
300
below
300
sides
200
12 V01 Installation and Operating Instructions
5. The ambient temperature should be below 40°C to ensure optimal operation.
6. In order to avoid power reduction caused by overheating, do not mount the
inverter in a location that allows long-term exposure to direct sunlight.
7. The mounting method, location and surface must be suitable for the inverter's
weight and dimensions.
8. If mounted in a residential area, we recommend mounting the inverter on a
solid surface. Plasterboard and similar materials are not recommended due to
audible vibrations when in use.
9. Do not put any objects on the inverter.
10. Do not cover the inverter.
Installation and Operating Instructions V01 13
• Do not mount the inverter on flammable construction materials.
• Do not mount the inverter in areas where flammable materials are stored.
• Do not mount the inverter in areas where there is a risk of explosion.
4.2 Selecting the mounting location
1. Mount the inverter vertically or tilted backward by a maximum of 15°.
2. Never mount the inverter tilted forward or sideways.
3. Never mount the inverter horizontally.
4. Mount the inverter at eye level to make it easy to operate and to read the
display.
5. The electrical connection area must point downwards.
Warning!
Danger to life due to fire or explosion!
14 V01 Installation and Operating Instructions
CAUTION!
Risk of injury due to the heavy weight of the inverter!
• When mounting, take into account that the inverter-weighs approx. 14 kg .
CAUTION!
Risk of injury if the inverter falls down!
• Before inserting screw anchors, measure the depth and distance of the holes.
• If the measured values do not fulfill the mounting requirement, redrill the
holes.
4.3 Mounting the inverter with the wall mounting bracket
Mounting procedures:
1. Use the wall bracket as a drilling template and
mark the positions of the drill holes, then drill
4 holes (φ 10) to a depth of 55 to 60mm.
During operation, keep the drill vertical to the
wall, and hold the drill steady to avoid tilted
holes. After cleaning the dust from the holes,
measure their net depth.
2. After drilling holes in the wall, place four screw anchors into the holes, then
attach the wall mounting bracket to the wall using the self-tapping screws and
washers delivered with the inverter.
Installation and Operating Instructions V01 15
3. Hold the inverter using the handles on the sides and attach it tilted slightly
downwards to the wall bracket
4. Check both sides of the inverter to ensure that it is securely in place.
5. Push in the inverter as far as possible and attach it to both sides of the wall
bracket using the M5 screws and washers.
If a second protective conductor is required in your country, ground the inverter and
secure it so that it cannot be lifted off the wall bracket (see section 5.4.3 “ Second
protective grounding connection ”).
16 V01 Installation and Operating Instructions
CAUTION!
Risk of injury due to electric shock!
• The external protective grounding conductor is connected to the
inverter’s protective grounding terminal through an AC connector, make
sure the connection is safe.
• When connecting, connect the AC connector first to ensure the inverter
grounding and then connect the DC inputs.
• When disconnecting, disconnect the DC inputs first and then disconnect
the AC connector.
• Do not, under any circumstances, connect the DC inputs when the AC
connector is unplugged.
WARNING!
Risk of injury due to electric shock!
• The inverter must be installed only by trained and authorized electricians.
• All electrical installations must be done in accordance with the National Wiring
Rules standards and all locally applicable standards and directives.
5 Electrical Connection
5.1 Safety
Installation and Operating Instructions V01 17
5.2 System layout of units without integrated DC switch
Local standards or codes may require that PV systems are fitted with an external
DC switch on the DC side. The DC switch must be able to safely disconnect the
open-circuit voltage of the PV array plus a safety reserve of 20%.
Install a DC switch to each PV string to isolate the DC side of the inverter. We
recommend the following electrical connection:
5.3 Overview of the connection area
A B C D E
Object
Description
A
DC switch (optional): connect or disconnect the PV modules
B
DC input: plug-in connector to connect the strings
C
RJ45 interface: connect the monitoring device
D
RELAIS (optional): output fault signal
E
AC output: plug-in connector to connect the grid
18 V01 Installation and Operating Instructions
Before making the electrical connection, ensure that the circuit breaker is
switched off and cannot be reactivated.
5.4 AC connection
5.4.1 Conditions for the AC connection
Cable Requirements
The grid connection is made using 3 conductors (L, N, and PE). We recommend the
following requirements for stranded copper wire.
Object
Description
Value
A
External diameter
10 mm to 14 mm
B
Conductor cross-section
2.5 mm² to 4 mm²
C
Stripping length of the insulated conductors
approx. 10 mm
D
Stripping length of the outer sheath of the AC
cable
approx. 30 mm
Larger cross-sections should be used for longer leads
Cable Design
The conductor cross-section should be dimensioned to avoid power loss in cables
exceeding 1% at rated output power.
DANGER !
Danger to life due to high voltages in the inverter !
Installation and Operating Instructions V01 19
The maximum cable lengths relative to the conductor cross-section as follows:
Conductor
cross-section
Maximum cable length
TL1000-20
TL1500-20
TL2000-20
TL3000-20
2.5 mm²
43m
23 m
21 m
15 m
4 mm²
69m
37 m
33 m
24 m
The required conductor cross-section depends on the inverter rating, ambient
temperature, routing method, cable type, cable losses, valid installation
requirements of the country of installation etc.
5.4.2 Grid connection
Overview of the AC Plug
Object
Description
A
Socket element
B
Threaded sleeve
C
Sealing ring
D
Swivel nut
20 V01 Installation and Operating Instructions
Procedure
1. Switch off the circuit breaker and secure it against being inadvertently switched
back on.
2. Guide the pressure screw (D) over the AC cable.
3. Guide the threaded sleeve (B) with the sealing ring over the AC cable.
4. Bend the AC cable. The bending radius must be at least four times the cable
diameter.
5. Shorten the cable, the PE protective conductor (green-yellow) must be longer
than the insulated conductors of N and L.
6. Shorten the line conductor L and neutral conductor N by 4 to 5 mm.
Installation and Operating Instructions V01 21
7. Connect the individual conductors to the pin connector row by row:
• Insert the grounding conductor (green-yellow) into the
screw terminal with the grounding sign and tighten the
screw by using a torque of 0.8 Nm to 1Nm using the POZI-2
tool.
• Insert the neutral conductor N (blue) into the screw
terminal N on the socket element and tighten the screw.
• Insert line conductor L (brown or black) into screw terminal L on the socket
element and tighten the screw.
8. Make sure the insulated conductors are securely connected.
9. Push the threaded sleeve (B) onto the socket element (A) until it audibly snaps
into place.
10. Screw the swivel nut (D) tightly onto the threaded sleeve (B) with a torque wrench
(torque: 2 to 2.5 Nm). The AC plug has now been screwed together. The pressure
screw serves to seal and relieve strain.
11. Finally, insert the AC plug into the AC pin connector on the inverter.
22 V01 Installation and Operating Instructions
5.4.3 Second protective grounding connection
If necessary, the grounding terminal can be used to connect a second protective
conductor or equipotential bonding.
Procedure
1. Remove the terminal lug, insert the stripped grounding conductor to the terminal
lug and crimp the contact.
2. Align the washer, the terminal lug with protective conductor, and the ground
washer on the screw. The teeth of the ground washer must be facing the heat
sink.
3. Insert the screw through the hole located at the side of the heat sink, and tighten it
firmly in the wall mounting bracket (torque: 2 Nm).
Information on grounding components:
No.
Description
1
Heat sink
2
Ground washerφ 5
3
Terminal lug (M5) with protective conductor
4
Large plain washerφ 6
5
M5×12 mm pan head screw
Installation and Operating Instructions V01 23
INFORMATION!
If an external residual current device (RCD) is required, refer to the information
below!
If an external residual current device (RCD) is required in a TT or TN-S system,
install a residual current device which trips at a residual current of 120 mA or
higher.
For each connected inverter, a rated residual current of 120 mA has to be
provided. The rated residual current of the RCD must be equal to at least the sum
of the rated residual currents of the connected inverters. That means that, if, for
example, two transformerless inverters are connected, the rated residual current
of the RCD must be at least 240 mA.
5.4.4 Residual current protection
The inverter is equipped with an all-pole sensitive residual current monitoring unit
(RCMU) with an integrated differential current sensor which fulfills the requirements
of DIN VDE 0100-712 (IEC60364-7-712:2002).
Therefore an external residual current device (RCD) is not required. If an external
RCD needs to be installed because of local regulations, a RCD type A or type B can be
installed as an additional safety measure.
The all-pole sensitive residual current monitoring unit (RCMU) detects alternating
and direct differential currents. The integrated differential current sensor detects
the current difference between the neutral conductor and the line conductor. If the
current difference increases suddenly, the inverter disconnects from the grid. The
function of the all-pole sensitive residual current monitoring unit (RCMU) has been
tested in accordance with IEC 62109-2.
24 V01 Installation and Operating Instructions
You must protect each inverter with an individual circuit breaker in order that the
inverter can be disconnected safely.
5.4.5 Overvoltage category
The inverter can be deployed in grids of installation category III or lower, as defined
under IEC 60664-1. This means that it can be permanently connected at the
grid-connection point in a building. In installations involving long outdoor cable routing,
additional overvoltage-reducing measures must be taken so that the overvoltage
category is reduced from IV to III.
5.4.6 Circuit breaker
No load should be applied between the circuit breaker and the inverter. Use dedicated
circuit breakers with load switch functionality for load switching. The selection of the
circuit breaker rating depends on the wiring design (wire cross-section area), cable
type, wiring method, ambient temperature, inverter current rating etc. Derating of the
circuit breaker rating may be necessary due to self-heating or if exposed to heat.
The maximum output currents of the inverters can be found in the following table.
Type
TL1000-20
TL1500-20
TL2000-20
TL3000-20
Max. output current
5.5A
9 A
11 A
16 A
Recommended fuse type
gL/gG or comparable circuit
breaker rating
16A
16 A
16 A
20 A
DANGER!
Danger to life due to fire!
Installation and Operating Instructions V01 25
INFORMATION!
If Y adaptors are required, refer to the information below!
Y adaptors must not be visible or freely accessible in the immediate vicinity of
the inverter.
• The DC circuit must not be interrupted by Y adaptors.
• In order to interrupt the DC electric circuit, disconnect the inverter from all
voltage sources (see Section 8).
• Before connecting the PV array, ensure that the DC switch is switched off and
that it cannot be reactivated.
• Do not disconnect the DC connectors under load.
5.5 DC connection
5.5.1 Conditions for the DC connection
• PV modules of the connected strings must be of:
–the same type
–the same number of series-connected PV modules
–identical alignment
–identical tilt
• The connection cables of the PV modules must be equipped with the connectors included
in the scope of delivery.
• At the DC input of the inverter, the following limits must not be exceeded:
• The positive connection cables of the PV modules must be equipped with the positive DC
connectors.
Type
Max. DC input voltage
Max. DC input current
Max. short-circuit current
TL1000-20
500 V
12 A
18 A
TL1500-20
500 V
12 A
18 A
TL2000-20
500 V
12 A
18 A
TL3000-20
500 V
18 A
27 A
DANGER!
Danger to life due to high voltages in the inverter!
26 V01 Installation and Operating Instructions
• The negative connection cables of the PV modules must be equipped with the negative DC
connectors.
• At an ambient temperature over 10℃, the open-circuit voltage of the PV strings must not
exceed 90% of the maximum DC input voltage of the inverter. This prevents the voltage
from exceeding the maximum DC input voltage of the inverter at lower ambient
temperatures.
Installation and Operating Instructions V01 27
5.5.2 Assembling the DC connectors
Assemble the DC connectors as described below. Be sure to observe the correct
polarity. The DC connectors are marked with the symbols "+" and " − ".
Cable requirements：
The cable must be of type PV1-F，UL-ZKLA or USE2 and comply with the following
properties：
External diameter：5 mm to 8 mm
Conductor cross-section：2.5 mm² to 6 mm²
Number of conductors：at least 7
Nominal voltage：at least 600V
Proceed as follows to assemble each DC connector.
1. Strip 12 mm off the cable insulation.
2. Route the stripped cable all the way into the DC connector. Ensure that the
stripped cable and the DC connector have the same polarity.
28 V01 Installation and Operating Instructions
3. Press the clamping bracket down until it audibly snaps into place.
4. Ensure that the cable is correctly positioned:
Result
Measure
If the stranded wires are visible in the
chamber of the clamping bracket, the
cable is correctly positioned.
• Proceed to step 5.
If the stranded wires are not visible in the
chamber, the cable is not correctly
positioned.
• Release the clamping bracket. To do so,
insert a flat-blade screwdriver (blade width:
3.5 mm) into the clamping bracket and lever it
open.
• Remove the cable and go back to step 2.
5. Push the swivel nut up to the thread and tighten (torque: 2 Nm).
Installation and Operating Instructions V01 29
5.5.3 Disassembling the DC connectors
1. Unscrew the swivel nut.
2. To release the DC connector, insert a flat-blade screwdriver (blade width: 3.5 mm)
into the side catch mechanism and lever open.
3. Carefully pull the DC connector apart.
4. Release the clamping bracket. To do so, insert a flat-blade screwdriver (blade
width: 3.5 mm) into the clamping bracket and lever it open.
5. Remove the cable.
30 V01 Installation and Operating Instructions
NOTICE!
The inverter can be destroyed by overvoltage!
If the voltage of the strings exceeds the maximum DC input voltage of the
inverter, it can be destroyed due to overvoltage. All warranty claims become void.
• Do not connect strings with an open-circuit voltage greater than the maximum
DC input voltage of the inverter.
• Check the design of the PV system.
5.5.4 Connecting the PV array
1. Ensure that the individual circuit breaker is switched off and ensure that it cannot be
accidentally reconnected.
2. Ensure that the DC switch is switched off and ensure that it cannot be accidentally
reconnected.
3. Ensure that there is no ground fault in the PV array.
4. Check whether the DC connector has the correct polarity.
If the DC connector is equipped with a DC cable having the wrong polarity, the DC
connector must be assembled again. The DC cable must always have the same
polarity as the DC connector.
5. Ensure that the open-circuit voltage of the PV array does not exceed the maximum
DC input voltage of to the inverter.
6. Connect the assembled DC connectors to the inverter until they audibly snap into
place.
Installation and Operating Instructions V01 31
NOTICE!
Damage to the inverter due to moisture and dust penetration!
Seal the unused DC inputs with sealing plugs so that moisture and dust cannot
penetrate the inverter.
• Make sure all DC connectors are securely sealed.
7. Ensure that all DC connectors are securely in place.
8. The inverter is only properly sealed when all the unused DC inputs are closed with
sealing plugs.
32 V01 Installation and Operating Instructions
6 Communication
6.1 System monitoring via RS485
This inverter is equipped with RJ45 interfaces for multipoint communication.
One PMU can monitor 30 inverters at the same time via an RS485 bus. The overall
length of the network cable should not exceed 1,000 m. The monitoring system
layout for inverters is as follows.
The PMU connects to the inverter via the RJ45 interface, and it connects to the
router via Ethernet.
We offer a remote monitoring platform called “Solarcloud”. You can install the
“Solarcloud” application on a smart phone using Android or an iOS operating
systems.
You can also visit the website ( http://solarcloud.zeversolar.com ) for system
information.
Installation and Operating Instructions V01 33
NOTICE!
The inverter can be destroyed by wrong communication wiring!
Internal components of the inverter can be irreparably damaged due to
incorrect wiring between the power wire and signal wire.
• Please check the wiring of the RJ45 connector before crimping the contact.
The pin assignment of the RJ45 socket on the inverter is as follows:
Pin1------- TX_RS485A
Pin2-------TX_RS485B
Pin3-------RX_RS485A
Pin4-------GND
Pin5-------GND
Pin6-------RX_RS485B
Pin7-------+7V
Pin8-------+7V
RS485 communication via network cable:
1. Remove the inverter’s communication panel by loosening the four screws with
the Torx T20 wrench. Unscrew the M25 cable gland and remove the filler-plug
from the cable gland.
34 V01 Installation and Operating Instructions
NOTICE!
Damage to the inverter due to moisture and dust penetration!
If the communication panel and cable gland are not mounted properly, the
inverter can be destroyed due to moisture and dust penetration. All warranty
claims become void.
• Make sure the inverter’s communication panel has been fastened properly.
• Make sure the cable gland has been tightened firmly.
2. Current pin assignment for the network cable as per EIA/TIA 568 standard:
3. Guide the cable gland and communication panel over the network cable and then
connect the RJ45 plug to the RJ45 keystone socket.
Installation and Operating Instructions V01 35
4. Connect the inverter to PMU or another communication device via the above
mentioned network cable.
5. Fasten the inverter’s communication panel by tightening the four screws with a
torque wrench setting of 1.4 to 1.6 Nm. Press the sealing ring with the network
cable into the cable gland, and then tighten the swivel nut firmly by hand. If
there is only one network cable, please insert a filler-plug into the remaining
hole of the sealing ring against water ingress.
6. Make sure the cable gland is mounted properly. The cable gland must be
adequately locked to prevent any movement of the cable.
7. When the PMU or other communication device is connected to a PC or mobile
client via Ethernet, the system data is monitored continuously.
6.2 Updating the firmware via RS485
The internal controller’s firmware can be updated via RS485, by qualified service
personnel.
36 V01 Installation and Operating Instructions
7 Operation
The information provided here covers the LED indicators, control button and display
messages, and the language and safety regulation settings.
7.1 Overview of the control panel
The inverter is equipped with a character display, three LED indicators and a control
button.
Object
Description
A
Normal (Green LED)
B
Fault (Red LED)
C
Communication (Yellow LED)
D
Control button
E
Display
ABCED
Installation and Operating Instructions V01 37
7.1.1 Display
The display messages consist of 16 characters×2 lines. The bottom line always
shows the current output (Pac = xxxx.xW). The top line shows the current state by
default, it will switch to different state information by pressing the control button,
as follows.
Line 1
State information
E-today
Daily energy
E-total
Energy generated since the inverter has been installed
Vpv
DC input voltage
Ipv
DC input current
Iac
Present output current
Frequency
Grid frequency
Model
Type name
Version
Firmware version
Set Language
Selected language
Vac
Serial No.
Output voltage
Serial number
Line 2
Pac = xxxx.xW
Current output
38 V01 Installation and Operating Instructions
7.1.2 Control button
The inverter has a control button which is necessary to switch between the various
displays for measured values and data, enter next entry and lock the expected
information.
The display menus wrap around, which means that when you arrive at the last entry,
the first entry is displayed when you press the button again.
You can freeze the display as follows:
Press the button for 3s when it shows the information you desire, and do not release
the button until you see “LOCK”. The display will show the selected information until
you press the button again or the operating state of the inverter changes.
To save power, the backlight of the display turns off automatically after 20s. Press
the button again to activate it.
Installation and Operating Instructions V01 39
7.1.3 LEDs
The inverter is equipped with three LED indicators “green”, “red” and “yellow” which
provide information about the various operating states.
Green LED:
The green LED is lit when the inverter is operating normally.
Yellow LED:
The yellow LED flashes during communication with other devices e.g. PMU, Solarlog
etc. Also, the yellow LED flashes during firmware update.
Red LED:
The red LED is lit when the inverter has stopped feeding power into the grid due to a
fault. The corresponding error code will be shown on the display.
40 V01 Installation and Operating Instructions
7.2 Display messages
Along with the various operating states, various messages may be shown on the
display, as follows.
State
Error code
Description
Causes
Initializat
-ion
Waiting
Initial PV voltage is between minimum DC
input voltage and the start-up DC input
voltage of the inverter.
Checking
The inverter is checking the feed-in
conditions after the start-up PV voltage
exceeds the initial DC input voltage of the
inverter.
Reconnect
The inverter is checking feed-in conditions
after the last fault has been solved.
Normal Normal
The inverter is operating normally.
Fault
9
GFCI Fault
Ground-fault detection circuit is abnormal
8
AC HCT Fault
Output current is abnormal
6
High DC Bus
The voltage of DC busbar exceeds the
permitted upper limit.
35
No Utility Grid
Available
The utility cannot be detected, which may be
caused by no utility, grid disconnected, AC
cables damaged, fuse broken or
stand-alone grid.
40
Over Temp.
The internal temperature exceeds the
permitted value.
33
Fac Fault
The grid frequency is outside the permitted
range.
34
Vac Fault
The grid voltage is outside the permitted
range.
37
PV Overvoltage
The voltage of the strings exceeds the
permitted upper limit.
36
Ground Fault
The residual current exceeds the permitted
upper limit.
4
DC INJ. High
Output DC feed-in exceeds the permitted
upper limit.
Installation and Operating Instructions V01 41
Fault
3
Rly-Check Fault
Output relay has failed.
2
EEPROM R/W
Fault
Reading or writing of EEPROM fails
44
DC Inj. differs for
M-S
A different value of DC feed-in has been
detected by the master and slave MCU.
43
Ground I differs
for M-S
A different value of residual current has
been detected by the master and slave
MCU.
42
Fac differs for
M-S
A different value of grid frequency has been
detected by the master and slave MCU.
41
Vac differs for
M-S
A different value of grid voltage has been
detected by the master and slave MCU.
45
Fac,Vac differs for
M-S
A different value of grid frequency and
voltage has been detected by the master
and slave MCU.
38
ISO Fault
The PV array’s insulation resistance to
ground is below the permitted value, or the
electrical insulation inside the inverter has
failed.
1
SCI Fault
Communication between the master and
slave CPU has failed.
10
Device Fault
Unknown Error
The last 5 dated failure reports on the NS protection can be read. An interruption in
the supply voltage of ≤ 3s does not result in any loss of failure reports (according
to VDE-AR-N 4105).
42 V01 Installation and Operating Instructions
7.3 Language and safety regulation settings
Before setting, switch on the DC switch, and ensure that the circuit breaker is
switched off and cannot be reactivated, while the inverter should be reliably
grounded.
7.3.1 Language setting
The inverter provides two languages: English and German.
Press the button for approx. 5s at the entry of “Set Language” to enter the language
menu and select the language. The display will switch to current state information
automatically and the language setting will be saved at the same time unless you
press the button again within approximately 10s.
7.3.2 Safety regulation setting
There is a safety regulation setting function in the inverter. You can choose different
safety regulations according to the local requirements. If you are in Germany or
Australia, you don’t need to set the safety regulation because the default is
correctly set for this countries. Set the safety regulation as described below:
Step 1：
Connect the inverter with the PV modules and switch on the DC switch; the LC
displays the following:
Step 2：
Press the control key (see section 9.1) approx. once per second until the LCD display
shows:
Error Code: 35
Pac= 0.0W
TL××××
Pac= 0.0W
Installation and Operating Instructions V01 43
Then press the control key for 10 seconds. The LCD will show the safety regulation
as illustrated below:
DE VDE-AR-N 4105 stands for the German safety regulation (VDE4105)
Step 3：
Before the LCD backlight goes out from step 2, press the control key again once a
second to scroll through the different safety regulations showing on the screen will
constantly change.
For example, if you choose the safety regulation for the Netherlands, press the
control key until the LCD display shows “NL NEN50438” as below:
Wait about 10 seconds. When the LCD backlight has turned off, the safety regulation
setting is complete.
Comment:
1 If the LCD display shows “DEFAULT”, keep on pressing the key until the LCD
display shows the desired safety regulation.
2 To set up other safety regulations refer to the example for the Netherlands
DE VDE-AR-N 4105
Pac= 0.0W
NL NEN50438
Pac= 0.0 W
44 V01 Installation and Operating Instructions
INFORMATION!
Risk of injury due to incorrect installation!
We strongly recommend carrying out preliminary checks before commissioning
to avoid possible damage to the device caused by faulty installation.
WARNING!
Danger to life due to the presence of DC voltage!
• Only touch the insulation of the PV array cables.
• Do not touch parts of the sub-structure and frame of the PV array.
• Wear personal protective equipment such as insulating gloves.
WARNING!
Danger to life due to the presence of AC voltage!
• Only touch the insulation of the AC cables.
• Wear personal protective equipment such as insulating gloves.
8 Commissioning
8.1 Electrical tests
Carry out the main electrical tests as follows:
① Check the PE connection with a multimeter: make sure that the inverter’s exposed
metal surface has a ground connection.
② Check the DC voltage values: check that the DC voltage of the strings does not
exceed the permitted limits. Refer to the Section "Intended use" about designing
the PV system (see section 2.1.6) for the maximum allowed DC voltage.
③ Check the polarity of the DC voltage: make sure the DC voltage has the correct
polarity.
④ Check the PV array’s insulation to ground with a multimeter: make sure that the
insulation resistance to ground is greater than 1 MOhm.
⑤ Check the grid voltage: check that the grid voltage at the point of connection of
the inverter complies with the permitted value.
Installation and Operating Instructions V01 45
Quick Troubleshooting!
If the inverter is in "Fault" mode, refer to Section 11 "Troubleshooting".
8.2 Mechanical tests
Carry out the main mechanical tests to ensure the inverter is waterproof:
① Use sealing caps for tight sealing of unused DC input connectors.
② Make sure the cable gland has been mounted properly and adequately locked.
Make sure the inverter’s communication panel has been fastened properly.
③ Make sure the AC connector has been mounted properly.
8.3 Start-Up
After the electrical and mechanical tests, switch on the circuit breaker. The inverter
starts automatically.
Usually, there are three states during operation:
Waiting: When the initial voltage of the strings is greater than the minimum DC input
voltage
but lower than the start-up DC input voltage, the inverter is waiting for sufficient DC
input voltage and cannot feed power into the grid.
Checking: When the initial voltage of the strings exceeds the start-up DC input
voltage, the inverter will check feeding conditions at once. If there is anything wrong
during checking, the inverter will switch to the “Fault” mode.
Normal: After checking, the inverter will switch to “Normal” state and feed power
into the grid.
During periods of little or no sunlight, the inverter may continuously start up and
shut down. This is due to insufficient power generated by the PV array. If this fault
occurs often, please call service.
46 V01 Installation and Operating Instructions
The capacitors in the inverter take 5 minutes to discharge.
• Wait 5 minutes before opening the inverter.
9 Disconnecting the Inverter from Voltage Sources
Before performing any work on the inverter, disconnect it from all voltage sources as
described in this section. Always adhere strictly to the given sequence.
1. Disconnect the circuit breaker and secure against reconnection.
2. Disconnect the DC switch and secure against reconnection.
3. Use a current probe to ensure that no current is present in the DC cables.
4. Release and disconnect all DC connectors. To do so, insert a flat-blade screwdriver
or an angled screwdriver (blade width: 3.5 mm) into one of the side slits and pull
the DC connectors straight out. Do not pull on the cable.
5. Release and disconnect the AC connector. To do so, insert a flat-blade screwdriver
(blade width: 3.5 mm) onto the spring clamp and pull the AC coupling plug out of
the AC connection receptacle on the inverter. Do not pull on the AC cable.
6. Wait until all LEDs and the display have gone out.
DANGER!
Danger to life due to high voltages!
1
2
Installation and Operating Instructions V01 47
10 Technical Data
10.1 DC input data
Type
TL1000-20
TL1500-20
TL2000-20
TL3000-20
Rated DC input power
(Pdc,r)
1300W
1800W
2200W
3300W
Max. recommended DC
input power at STC
(1)
1500Wp
2000Wp
2400Wp
3500Wp
Max. DC input voltage
500 V
Rated DC input voltage
360 V
MPP voltage range
90 V to 450 V
Full load MPP voltage
range
95 to 450V
150 to 450V
200 to 450 V
200 to 450V
Initial DC input voltage
95V
125 V
Min. feed-in DC voltage
85 V
Max. DC input current
12 A
18 A
Isc PV, absolute Max.
18 A
27 A
Number of MPP
trackers
1
Strings per MPP input
1
2
Switch-on power (W)
10 W
DC switch
Optional
(1) For fixed systems with semi-optimal conditions.
48 V01 Installation and Operating Instructions
10.2 AC output data
Type
TL1000-20
TL1500-20
TL2000-20
TL3000-20
Power connection
Single-phase
Rated output power
1000W
1500W
2000W
3000W
Max. output active power
1100W
1650W
2000W
3000W
Max. output apparent power
1100VA
1650VA
2140VA
3190VA
Rated grid voltage, frequency
220V/230V/240V, 50Hz/60Hz
AC voltage range
(2)
180 V to 280 V
Operating range at AC grid
frequency 50 Hz
(3)
45 Hz to 55 Hz
Operating range at AC grid
frequency 60 Hz
(3)
55 Hz to 65 Hz
Rated output current at 220V
4.6A
6.8 A
9.1 A
13.6 A
Rated output current at 230V
4.5A
6.5 A
8.7 A
13 A
Rated output current at 240V
4.2A
6.25 A
8.3 A
12.5 A
Max. continuous output current
5.5A
9 A
11 A
16 A
Power
factor
VDE-AR-N 4105
//
0.95 (lagging) to 0.95
(leading)
Other safety
standard
>0.97 at 20% load, >0.99 at 100% load
Harmonic distortion (THD) at
Pac,r
< 3%
< 2%
Night-time power loss
< 1 W
Standby power loss
< 6 W
(2) The AC voltage range depends on the local safety standards.
(3) The AC frequency range depends on the local safety standards.
Installation and Operating Instructions V01 49
INFORMATION!
If you use the standard VDE-AR-N 4105, please refer to the information below!
• If a central NS protection device is used, then the value of the voltage protection
U>1.1Un in the integrated NS protection can be changed with a password.
• The displacement factor cos(phi) value is not necessary to be adjustable if
the power generation system ΣSAmax≤3.68KVA and was set to 1 as default in
the embedded inverter software. However, if the power generation system is
such that 3.68KVA <ΣSAmax≤13.8KVA, the standard cos(phi) characteristic curve
defined in VDE-AR-N 4105 shall be applied through the PMU.
10.3 Safety regulations
Type
TL1000-20
TL1500-20
TL2000-20
TL3000-20
Internal overvoltage protection
Integrated
DC insulation monitoring
Integrated
DC feed-in monitoring
Integrated
Grid monitoring
Integrated
Residual current monitoring
device
Integrated (according to EN 62109-2)
Islanding protection
Integrated
EMC immunity
EN61000-6-1, EN61000-6-2
EMC emission
EN61000-6-3, EN61000-6-4
Utility interference
EN61000-3-2, EN61000-3-3
50 V01 Installation and Operating Instructions
10.4 General data
Type
TL1000-20
TL1500-20
TL2000-20
TL3000-20
Net weight
11.5 kg
14 kg
Dimension L×W×D
415×352×128 mm
415×352×145
mm
Mounting environment
Indoor and outdoor
Mounting recommendation
Wall mounting bracket
Operating temperature range
-25°C to +60°C
Max. permissible value for
relative humidity
(non-condensing)
100%
Max. operating altitude above
mean sea level
2000 m
Ingress protection
IP65 as per IEC 60529
Climate category
4K4H
Overvoltage category
DC input: II, AC output: III
Topology
Transformerless
Cooling concept
Convection
Noise
< 20 dB(A) @ 1m
Display
16×2 characters
Data communication
interfaces
RS485
Standard warranty
5 years
Installation and Operating Instructions V01 51
10.5 Efficiency
The operating efficiency is shown for the three input voltages (Vmppmax, Vdc,r and
Vmppmin) graphically. In all cases the efficiency refers to the standardized power
output (Pac/Pac,r). (according to EN 50524 (VDE 0126-13): 2008-10, cl. 4.5.3).
Notes: Values are based on rated grid voltage, cos(phi) = 1 and an ambient
temperature of 25°C .
10.5.1 Efficiency curve TL1000-20
Max. efficiency, ηmax
95.6%
European weighted efficiency, ηEU
95.0%
52 V01 Installation and Operating Instructions
10.5.2 Efficiency curve TL1500-20
Max. efficiency, ηmax
97.0%
European weighted efficiency, ηEU
96.0%
Installation and Operating Instructions V01 53
10.5.3 Efficiency curve TL2000-20
Max. efficiency, ηmax
97.0%
European weighted efficiency, ηEU
96.0%
10.5.4 Efficiency curve TL3000-20
Max. efficiency, ηmax
97.2%
European weighted efficiency, ηEU
96.2%
54 V01 Installation and Operating Instructions
10.6 Power reduction
In order to ensure inverter operation under safe conditions ,the device may
automatically decrease power output.
Power reduction depends on many operating parameters including ambient
temperature and input voltage, grid voltage, grid frequency and power available from
the PV modules. This device can decrease power output during certain periods of the
day according to these parameters.
Notes: Values are based on rated grid voltage and cos (phi) = 1.
Power reduction with increased ambient temperature (TL1000-20)
Power reduction with increased ambient temperature (TL1500-20)
Installation and Operating Instructions V01 55
Power reduction with increased ambient temperature (TL2000-20)
Power reduction with increased ambient temperature (TL3000-20)
56 V01 Installation and Operating Instructions
11 Troubleshooting
When the PV system does not operate normally, we recommend the following
solutions for quick troubleshooting. If an error occurs, the red LED will light up. The
corresponding causes are described in Section 9.2 "Display Messages". The
corresponding corrective measures are as follows：
Object
Error
code
Corrective measures
Presumable
Fault
38
•Check the PV array’s insulation to ground and make sure
that the insulation resistance to ground is greater than 1
MOhm. Otherwise, make a visual inspection of all PV cables
and modules.
• Make sure the grounding connection of the inverter is
reliable.
If this fault occurs often, contact the service.
36
• Make sure the grounding connection of the inverter is
reliable.
•Make a visual inspection of all PV cables and modules.
If this fault is still shown, contact the service.
6
• Check the open-circuit voltages of the strings and make
sure it is below the maximum DC input voltage of the
inverter.
If the input voltage is within the permitted range and the
fault still occurs, it might be that the internal circuit has
broken. Contact the service.
37
• Check the open-circuit voltages of the strings and make
sure it is below the maximum DC input voltage of the
inverter.
If the input voltage lies within the permitted range and the
fault still occurs, please call service.
41, 42
43, 44
45
• Disconnect the inverter from the grid and the PV array and
reconnect after 3 minutes.
If this fault is still being shown, contact the service.
Installation and Operating Instructions V01 57
Presumable
Fault
33
• Check the grid frequency and observe how often major
fluctuations occur.
If this fault is caused by frequent fluctuations, try to modify
the operating parameters after informing the grid operator
first.
35
• Check the fuse and the triggering of the circuit breaker in
the distribution box.
• Check the grid voltage, grid usability.
• Check the AC cable, grid connection on the inverter.
If this fault is still being shown, contact the service.
34
•Check the grid voltage and grid connection on the inverter.
• Check the grid voltage at the point of connection of the
inverter.
If the grid voltage is outside the permissible range due to
local grid conditions, try to modify the values of the
monitored operational limits after informing the electric
utility company first.
If the grid voltage lies within the permitted range and this
fault still occurs, please call service.
40
•Check whether the airflow to the heat sink is obstructed.
•Check whether the ambient temperature around the
inverter is too high.
Permanent
Fault
1, 2, 3,
4, 8, 9
Disconnect the inverter from the utility grid and the PV array
and reconnect it after 3 minutes. If this fault is still being
displayed, contact the service.
58 V01 Installation and Operating Instructions
CAUTION!
Risk of injury due to hot heat sink!
• The heat sink may exceed 70℃ during operation. Do not touch the heat sink
during operation.
• Wait approx. 30 minutes before cleaning until the heat sink has cooled down.
12 Maintenance
Normally, the inverter needs no maintenance or calibration. Regularly inspect the
inverter and the cables for visible damage. Disconnect the inverter from all power
sources before cleaning. Clean the enclosure and display with a soft cloth. Ensure
the heat sink at the rear of the inverter is not covered.
12.1 Cleaning the contacts of the DC switch
Clean the contacts of the DC switch annually. Perform cleaning by cycling the
switch to“┃”and“○”positions 5 times. The DC switch is located at the lower left of
the enclosure.
12.2 Cleaning the heat sink
Clean the heat sink with compressed air or a soft brush. Do not use aggressive
chemicals, cleaning solvents or strong detergents.
For proper function and long service life, ensure free air circulation around the heat
sink.
13 Recycling and Disposal
Both the inverter and its transport packaging are predominantly made from
recyclable raw materials.
Do not dispose of the defective inverter and its accessories with household waste.
Ensure that the defective inverter, its accessories and transport packaging are
disposed of properly.
Installation and Operating Instructions V01 59
14 Contact
If you have any technical problems concerning our products, please contact
Zeversolar service. We require the following information in order to provide you
with the necessary assistance:
• Inverter device type
• Inverter serial number
• Type and number of connected PV modules
• Error code
• Mounting location
Zeversolar Factory Warranty
The current warranty conditions come enclosed with your device. These are also
available online at www. zeversolar.com and can be downloaded and are available on
paper from the usual sales channels if required.
Jiangsu Zeversolar New Energy Co., Ltd.
Tel.: +86 512 6937 0998
Fax: +86 512 6937 3159
Web: www.zeversolar.com
Factory add.: No.588 Gangxing Road, Yangzhong Jiangsu, China
Headquarters add.: Building 9, No.198 Xiangyang Road, Suzhou 215011, China
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