Huawei SUN2000-45KTL-US-HV-D0 User manual

HUAWEI TECHNOLOGIES CO., LTD.
SUN2000-45KTL-US-HV-D0
Quick Guide
Issue: 02
Part Number: 31507792
Date: 2018-04-18

Copyright © Huawei Technologies Co., Ltd. 2018.
All rights reserved.
1Product Overview
Indicator Description
Front View
1
(1) PV connection indicator
(2) Grid-tied indicator
(3) Communication indicator
(4) Alarm/Maintenance indicator
(5) Maintenance compartment door
(6) Host panel cover
Indicator
Status
Description
PV connection
indicator
DC input
detection
status
Blinking green
The DC input is normal.
Blinking red
DC input detection is in progress or stalling.
Steady red
The DC input is abnormal.
PV string
connection
status
Steady green
At least one PV string is properly connected, and
the DC input voltage of the corresponding MPPT
circuit is higher than or equal to 600 V.
Off
The SUN2000 disconnects from all PV strings, or
the DC input voltage of each MPPT circuit is less
than 600 V.
Grid
-tied
indicator
Steady green
The SUN2000 has connected to the power grid.
Off
The SUN2000 does not connect to the power grid.
1. The information in this document is subject to change without notice. Every effort has been
made in the preparation of this document to ensure accuracy of the contents, but all statements,
information, and recommendations in this document do not constitute a warranty of any kind,
express or implied.
2. Before device installation, carefully read the SUN2000-45KTL-US-HV-D0 User Manual to get
familiar with product information and precautions.
3. Only qualified and trained electrical technicians are allowed to operate the device. Operators
should understand the components and functioning of a grid-tied PV power system, and they
should be familiar with relevant local standards.
4. Before installing the device, check that package contents are intact and complete against the
packing list. If any damage is found or any component is missing, contact the dealer.
5. Use insulated tools when installing the device. For personal safety, wear proper personal
protective equipment (PPE).
6. Huawei shall not be liable for any consequence caused by violation of the storage, moving,
installation, and operation regulations specified in this document and the user manual.
NOTICE

Ports
2
Indicator
Status
Description
Communication
indicator
Blinking green
The SUN2000 receives data
over RS485 or PLC
communication.
Off
The SUN2000 has not received
data over RS485 or PLC
communication for 10 seconds.
Alarm/Maintenan
ce indicator
Alarm status
Blinking red at long intervals (on
for 1s and then off for 4s)
A warning alarm is generated.
Blinking red at short intervals (on
for 0.5s and then off for 0.5s)
A minor alarm is generated.
Steady red
A major alarm is generated.
Local
maintenance
status
Blinking green at long intervals
(on for 1s and then off for 1s)
Local maintenance is in
progress.
Blinking green at short intervals
(on for 0.125s and then off for
0.125s)
Local maintenance fails.
Steady green
Local maintenance succeeds.
Waterproof cable connector is abbreviated as waterproof connector in the following text.
NOTE
(1)
2-inch waterproof cable connector (AC
OUTPUT)
(2)
1/2-inch waterproof cable connector
(RESERVE)
(3)
USB port (USB)
(4) DC switch 1 (DC SWITCH 1)
(5)
DC switch 2 (DC SWITCH 2)
(6)
3/4-inch waterproof cable connectors (COM1,
COM2, and COM3)
(7)
DC input terminals (controlled by DC
SWITCH 1)
(8)
DC input terminals (controlled by DC
SWITCH 2)
(9)
PV side ground point (GND)

3
2Installation Requirements
Installation Angle
2.1
SUN2000 Dimensions Mounting Bracket Dimensions

Installation Space
2.2
For ease of installing the SUN2000
on the mounting bracket,
connecting cables to the bottom of
the SUN2000, and maintaining the
SUN2000 in future, it is
recommended that the bottom
clearance be between 600 mm
(23.62 in.) and 730 mm (28.74 in.).
4
NOTE
3Installing the SUN2000
•The SUN2000 mounting bracket has four groups of tapped holes, each group containing four
tapped holes. Mark any hole in each group based on site requirements and mark four holes in
total. Two round holes are preferred.
•The SUN2000 is delivered with M12x60 expansion bolts and M12x40 bolt assemblies. If the bolt
assembly length does not meet the installation requirements, prepare M12 bolt assemblies by
yourself and use them together with the delivered M12 nuts.
•Before installing the mounting bracket, remove the security torx wrench from the mounting
bracket and save it for later use.
NOTE
Round
holes

5
•To prevent dust inhalation or contact with eyes, wear safety goggles and an anti-dust mask
when drilling holes.
•Clean up any dust in and around the holes using a vacuum cleaner and measure the
distance between holes. If the holes are inaccurately positioned, drill new set of the holes.
•Level the head of the expansion sleeve with the concrete wall after removing the bolt, spring
washer, and flat washer. Otherwise, the mounting bracket will not be securely installed on
the concrete wall.
NOTICE
Wall-mounted Installation
Avoid drilling holes in the utility pipes and/or cables attached to back of the wall.
DANGER

6
Support-mounted Installation
You are advised to apply anti-rust paint on the hole positions for protection.
NOTE

7
General Operation
4Crimping an OT Terminal
4.1
Core wire
Insulation layer
Heat
shrink
tubing
Hydraulic
pliers
Heat
gun
Pay attention not to damage the core wire when stripping a cable.
The cavity formed after the conductor crimp strip of the OT terminal is crimped must wrap the
core wires completely. The core wires must contact the OT terminal closely.
Wrap the wire crimping area with heat shrink tubing or PVC insulation tape. The following figure
uses heat shrink tubing as an example.
When using the heat gun, protect devices from being scorched.
NOTICE
Installing the Tube Fittings (Using AC OUTPUT as an Example)
4.2
The tube specifications should comply with the waterproof connector specifications. For example,
for a 2 in. waterproof connector, prepare a 2 in. tube. The tube appearance shown in the following
figure is for reference only. The actual tube prevails.
Tube
Fitting
Conduit
Nut
Diameters of the bottom cable holes
NOTE

8
1. Remove the AC filter and save the screws for later use.
2. Remove the cable gland and cap from the waterproof connector, and then remove the waterproof
connector.
3. Secure the tube fittings.
4. Install the AC filter in the original position.
•AC filter operation is required only for the AC OUTPUT waterproof connector, not required for
other waterproof connectors.
•Following are the reference torque values for the waterproof connector and tube. Observe the
requirements of the specific manufacturer, if any.
−AC OUTPUT and COM ports: 7.5 N·m (plastic) or 10 N·m (metal)
−RESERVE port: 3.75 N·m (plastic) or 6.25 N·m (metal)
NOTE
For ease of connecting the AC output power cable, you are advised to remove the nut assembly
from the AC terminal and save it for later use, and then route the cable through the waterproof
connector.
NOTE
Routing Cables Through Waterproof Connectors (Using AC OUTPUT
as an Example)
4.3
AC filter

9
Installing the Ground Cable
5.1
•Both the maintenance compartment and chassis shell of the SUN2000 provide a PE point.
Select either for connecting the ground cable. For details about how to connect a ground cable
to the PE point in the maintenance compartment, see section " 5.3 Installing AC Output Power
Cables."
•You are advised to use outdoor copper-core cables with a cross-sectional area of 6 AWG and
M6 OT terminals. The ground cable must be secured.
•It is recommended that the ground cable be connected to a nearby PE point. For a system with
multiple SUN2000s connected in parallel, connect the PE points of all SUN2000s to ensure
equipotential connections to ground cables.
•Recommended: To enhance the corrosion resistance of a ground terminal, silica gel or paint
might needed.
NOTE
1. Connect the ground cable to the PE point (on the chassis shell).
2. Connect the ground cable to the PV side ground point.
Electrical Connections
5

10
1. Loosen the two screws on the maintenance
compartment door using a security torx wrench.2. Open the maintenance compartment door
and use the support bar to stabilize the door.
3. Remove the cover and hang it on the hook of the chassis door.
If the screws on the chassis door are lost, obtain spare screws from the fitting bag bound to the
inductor cover at the bottom of the chassis.
NOTE
Opening the Maintenance Compartment Door
5.2
1. Never open the host panel cover of the SUN2000.
2. Before opening the maintenance compartment door, turn off the downstream AC output switch
and the two DC switches at the bottom.
3. If you need to open the maintenance compartment door on rainy or snowy days, take protective
measures to prevent rain and snow entering the maintenance compartment. If it is impossible to
take protective measures, do not open the maintenance compartment door on rainy or snowy
days.
4. Do not leave extra hardware in the maintenance compartment.
WARNING

11
1. Install the tube fitting.
2. Route the cable through the tube conduit and then fitting.
3. Crimp the OT terminal.
4. Land the AC output power cable in the terminal block, and tighten the nuts with a torque wrench
to achieve a proper torque value.
a. Three-core cable (excluding the ground) b. Four-core cable (including the ground cable)
•Ensure that AC terminations provide firm and solid electrical connections. Failing to do so may
cause SUN2000 malfunction and damage to its terminal block, even starting thermal events.
•If the AC output power cables are subject to a pulling force because the inverter is not installed
stably, ensure that the last cable that bears the stress is the PE cable.
NOTICE
5. Secure the fitting to the tube.
6. Seal the cable hole.
7. Secure the AC filter.
8. Clear debris from the maintenance compartment.
Installing AC Output Power Cables
5.3
•Use cables that can withstand that can withstand 105°C (221°F).
•If you connect a ground cable to the PE point on the chassis shell, you are advised to use three
(L1, L2, and L3) single-core outdoor copper cables, each with a cross-sectional area of 4 AWG.
•If you connect a ground cable to the PE point in the maintenance compartment, you are
advised to use four (L1, L2, L3, and PE) single-core outdoor copper cables, each with a cross-
sectional area of 4 AWG.
•OT terminal: M8 (L1, L2, and L3) and M6 (PE).
•For more details about cable specifications, see the SUN2000-45KTL-US-HV-D0 User Manual.
NOTE
Connection Through a Tube

12
•Use copper-core cables that can withstand 105°C (221°F).
•If you connect a ground cable to the PE point on the chassis, you are advised to use a three-
core (L1, L2, and L3) outdoor copper cable with a cross-sectional area of 4 AWG for each core
wire.
•If you connect a ground cable to the PE point in the maintenance compartment, you are
advised to use a four-core (L1, L2, L3, and PE) outdoor copper cable with a cross-sectional
area of 4 AWG for each core wire.
•OT terminal: M8 (L1, L2, and L3) and M6 (PE).
•For more details about cable specifications, see the SUN2000-45KTL-US-HV-D0 User Manual.
NOTE
1. Remove an appropriate length of the jacket and insulation layer from the AC output power cable
using a wire stripper. (Ensure that the jacket is in the maintenance compartment.)
a. Three-core cable (excluding the ground cable)
JacketInsulation layerCore wire
b. Four-core cable (including the ground cable)
Connection Through a Waterproof Connector
2. Crimp the OT terminal.
3. Route the cable through the waterproof connector.
4. Land the AC output power cable in the terminal block, and tighten the nuts with a torque
wrench to achieve a proper torque value.
•Ensure that AC terminations provide firm and solid electrical connections. Failing to do so may
cause SUN2000 malfunction and damage to its terminal block, even starting thermal events.
•If the AC output power cables are subject to a pulling force because the inverter is not installed
stably, ensure that the last cable that bears the stress is the PE cable.
NOTICE
a. Three-core cable (excluding the ground cable) b. Four-core cable (including the ground cable)
5. Tighten the thread-lock sealing nut and seal the waterproof connector.

13
Installing DC Input Power Cables
5.4
Selecting DC Input Terminals
Number of Inputs
SUN2000
1
Connects to set 1.
2
Connects to sets 1 and 5.
3
Connects to sets 1, 3, and 5.
4
Connects to sets 1, 3, 5, and 7.
5
Connects to sets 1, 2, 3, 5, and 7.
6
Connects to sets 1, 2, 3, 5, 6, and 7.
7
Connects to sets 1, 2, 3, 4, 5, 6, and 7.
8
Connects to sets 1, 2, 3, 4, 5, 6, 7, and 8.
The SUN2000 provides two DC switches,
named as, DC SWITCH 1 and DC
SWITCH 2. DC SWITCH 1 controls the
first to fourth sets of DC input terminals,
whereas DC SWITCH 2 controls the fifth to
eighth sets of DC input terminals.
NOTE
Ensure that the PV string is well insulated to ground.
Before inserting the positive and negative connectors respectively into the positive and
negative DC input terminals of the SUN2000, check that the DC voltage does not exceed
1500 V using a multimeter and that the cables are connected correctly. Otherwise, the
SUN2000 will be damaged.
WARNING
1. Use the Amphenol HH4 DC input terminals provided with the SUN2000.
2. The metal contacts supplied with the DCconnectors are either cold forming contacts or stamping
forming contacts. Crimpthe metal cold forming contacts using crimping tool H4TC0001 (Amphenol).
Crimp the metal cold stamping contacts using crimping tool H4TC0002 (Amphenol). Choose the
crimping tools that fitthe metal contact types. Do not mixup the tools.
3. Before connecting DC input power cables, label the cable polarities to ensure correct cable
connections. If the cables are connected incorrectly, the SUN2000 may be damaged.
4. Insert the crimped metal terminals of the positive and negative power cables into the
appropriate positive and negative connectors. Then pull the DC input power cables to ensure
that they are connected securely.
5. Connect the positive and negative connectors to the appropriate positive and negative DC input
terminals. Then pull the DC input power cables to ensure that they are connected securely.
6. If polarity of the DC input power cable is reversed and the DC switch is ON, do not turn off the
DC switch immediately or unplug positive and negative connectors. The device may be
damaged if you do not follow the instruction. The caused equipment damage is beyond the
warranty scope. Wait until the solar irradiance declines and the PV string current reduces to
below 0.5 A, and then turn off the two DC switches and remove the positive and negative
connectors. Correct the string polarity before reconnecting the string to the SUN2000.
NOTICE

14
Installing a DC input power cable (using metal cold forming contacts)
Installing a DC input power cable (using metal stamping forming contacts)
Positive metal contact
Negative metal contact
Recommended: PV cable that
meets the 1500 V standard
H4TC0001
（Amphenol）
Ensure that the cable cannot
be removed after crimped.
Positive connector
Negative
connector Click
Click
Use a multimeter
to measure the
DC voltage.
Ensure that the
locking nut is
secured.
H4TW0001
（Amphenol）
Positive metal contact
Negative metal contact
Recommended: PV cable that
meets the 1500 V standard
H4TC0002
（Amphenol）
Ensure that the cable cannot
be removed after crimped.
Positive connector
Negative
connector Click
Click
Use a multimeter
to measure the
DC voltage.
Ensure that the
locking nut is
secured.
H4TW0001
（Amphenol）

15
If the voltage is a negative value, the DC input polarity is incorrect. Correct the polarity.
If the voltage is greater than 1500 V DC, too many PV modules configured to the same string.
Remove some PV modules.
Only after at least one PV string correctly connects to the MPPT1 circuit, can the SUN2000
enables the DC input detection function. Therefore, you are advised to connect DC input power
cables to the MPPT1 circuit first.
NOTICE
Selecting a Communication Mode
5.5
The SUN2000 supports either PLC or RS485 communication mode.
If PLC is used, you do not have to connect any communications cable to the SUN2000, but
have to connect the PLC CCO module or SmartLogger2000 to the AC power cable. For detailed
operations, see the PLC CCO01A User Manual or SmartLogger2000 User Manual.
If RS485 is used, do not connect the PLC CCO module to the AC power cable.
NOTE
1. When laying out communications cables, separate them from power cables to avoid strong
signal interference sources.
2. The RS485 communications cable can connect to either a terminal block or an RJ45 network
port. Connecting to a terminal block is recommended.
NOTICE
You are advised to use a multi-paired, individually foil shielded cable that complies with UL2919,
CM/CMG (NEC type), or CMH (CSA type) and has a conductor cross-sectional area of less than or
equal to 14 AWG and an outer diameter of 14–18 mm (0.55–0.71 in.).
NOTE
Connecting the RS485 Communications Cable (to a Terminal Block)
5.6
1. Install the tube fitting.
2. Route the cable through the tube conduit and then fitting.
3. Remove an appropriate length of the jacket and core wire insulation layer from the
communications cable using a wire stripper.
Connection Through a Tube
Route the RS485 IN communications cable through the COM1 port, and the RS485 OUT
communications cable through the COM2 port.
NOTE

16
4. Remove the cable terminal base from the terminal block. Connect the communications cable to
the terminal base.
No.
Port
Definition
Description
1
RS485A IN
RS485A, RS485 differential
signal+
2
RS485A
OUT
RS485A, RS485 differential
signal+
3
RS485B IN
RS485B, RS485 differential
signal
–
4
RS485B
OUT
RS485B, RS485 differential
signal
–
5. Land the cables in the terminal block, and
bond the shield layer to the ground point. 6. Bundle communications cables after
connecting them.
When connecting the shielded cable, crimp the OT terminal if required.
NOTE
7. Connect the conduit and fitting of the tube.
8. Clear debris from the maintenance compartment.
1. Remove an appropriate length of the jacket and core wire insulation layer from the
communications cable using a wire stripper.
Connection Through a Waterproof Connector

17
2. Route the cable through the waterproof connector.
3. Remove the cable terminal base from the terminal block. Connect the communications cable to
the terminal base.
No.
Port Definition
Description
1
RS485A IN
RS485A, RS485
differential signal+
2
RS485A OUT
RS485A, RS485
differential signal+
3
RS485B IN
RS485B, RS485
differential signal
–
4
RS485B OUT
RS485B, RS485
differential signal
–
4. Land the cables in the terminal block, and bond
the shield layer to the ground point. 5. Bundle communications cables after
connecting them.
When connecting the shielded cable, crimp the OT terminal if required.
NOTE
NOTE
You are advised to use a CAT 5E outdoor shielded network cable with an outer diameter less than
9 mm (0.35 in.) and internal resistance not greater than 1.5 ohms/10 m (1.5 ohms/32.81 ft), as well
as a shielded RJ45 connector.
Connecting the RS485 Communications Cable (to the RJ45 Port)
5.7
6. Tighten the thread-lock sealing nut and seal the waterproof connector.

18
1. Install the tube fitting.
2. Route the cable through the tube conduit and
then fitting.
3. Crimp an RJ45 connector.
No.
Color
Pin Definition
1
White
-and-orange
RS485A, RS485
differential signal+
2
Orange
RS485B, RS485
differential signal
–
3
White
-and-green
N/A
4
Blue
RS485A, RS485
differential signal+
5
White
-and-blue
RS485B, RS485
differential signal
–
6
Green
N/A
7
White
-and-brown
N/A
8
Brown
N/A
Connection Through a Tube
4. Insert the RJ45 connector into the RJ45 network
port in the SUN2000 maintenance compartment. 5. Bundle communications cables after
connecting them.
6. Connect the conduit and fitting of the tube.
7. Clear foreign matter from the maintenance compartment.
1. Prepare an RJ45 connector.
No.
Color
Pin Definition
1
White
-and-orange
RS485A, RS485
differential signal+
2
Orange
RS485B, RS485
differential signal
–
3
White
-and-green
N/A
4
Blue
RS485A, RS485
differential signal+
5
White
-and-blue
RS485B, RS485
differential signal
–
6
Green
N/A
7
White
-and-brown
N/A
8
Brown
N/A
Connection Through a Waterproof Connector

19
2. Route the cable through the waterproof connector.
3. Insert the RJ45 connector into the RJ45 network
port in the SUN2000 maintenance compartment. 4. Bundle communications cables after
connecting them.
6Checking After Installation
1.
The SUN2000 is installed correctly and securely.
Yes
□No □N/A □
2.
The DC switches and downstream AC switch are OFF.
Yes
□No □N/A □
3.
All ground cables are connected securely.
Yes
□No □N/A □
4.
AC output power cables are connected correctly and securely,
without open circuits or short circuits.
Yes
□No □N/A □
5.
DC input power cables are connected correctly and securely,
without open circuits or short circuits.
Yes
□No □N/A □
6.
The RS485 communications cable is connected correctly and
securely.
Yes
□No □N/A □
7.
All tube openings and/or used waterproof connectors at the
chassis bottom are sealed.
Yes
□No □N/A □
8.
The AC terminal cover is reinstalled.
Yes
□No □N/A □
9.
Check that the maintenance compartment is clean and tidy,
without foreign matter.
Yes
□No □N/A □
10. The maintenance compartment door is closed and secured with
screws.
Yes
□No □N/A □
11.
Unused DC input terminals are sealed.
Yes
□No □N/A □
12.
Unused USB ports are plugged with waterproof caps.
Yes
□No □N/A □
13.
Unused waterproof connectors are covered and the cable
glands are tightened.
Yes
□No □N/A □
5. Tighten the thread-lock sealing nut and seal the waterproof connector.