Huawei SUN2000-33KTL User manual

HUAWEI TECHNOLOGIES CO., LTD.
SUN2000-(30KTL-A, 33KTL, 33KTL-E001, 40KTL)
Quick Guide
Issue: 09
Part Number: 31507079
Date: 2018-04-15

1
1System Installation
Installation dimensions Chassis dimensions
Copyright © Huawei Technologies Co., Ltd. 2018. All rights
reserved.
Determining the Installation Position
1.1
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 installing the device, read the SUN2000-(30KTL-A, 33KTL, 33KTL-E001, 40KTL) User
Manual for knowledge of product information and safety 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 be
familiar with relevant local standards.
4. Before installing the device, check that deliverables 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 insulation gloves and
protective shoes.
6. Huawei shall not be liable for any consequence caused by violation of the storage,
transportation, installation, and operation regulations specified in this document and the user
manual.
NOTICE
Install the inverter vertically or with a backward tilt of no more than 15 degrees.
NOTE
Determining the Installation Mode
1.2

2
1. The anti-theft lock is prepared by the customer.
2. For details about how to wall-mount the device, see the SUN2000-(30KTL-A, 33KTL, 33KTL-
E001, 40KTL) User Manual.
1. Determine the hole positions on the support
based on rear panel dimensions. 2. Drill holes. (You are advised to apply anti-rust
paint on the hole positions for protection.)
4. Mount the inverter on the rear panel.
6. (Optional) Install an anti-theft lock.
M12
45 N·m
3. Secure the rear panel.
5. Tighten hexagon bolts.
Installing an Inverter (Support-mounting Used as an Example)
1.3
NOTE

3
2Electrical Connection
M6
5 N·m
OT-M6
Installing a PGND Cable (Using the Ground Point on the Chassis Shell)
2.1
OT-M6
Installing AC Output Power Cables
2.2
OT-M6
PE terminal
1. It is recommended that an 8 mm2, 10
mm2, 8 AWG or 7 AWG outdoor
copper-core cable be used as a
ground cable. Ground cables must
be securely connected.
2. It is recommended that the ground
cable be connected to a nearby
ground position. For a system with
multiple inverters connected in
parallel, connect the ground points of
all inverters to ensure equipotential
connections.
3. To prevent corrosion, apply silica gel
or paint to the PE terminal after
connecting the PGND cable.
NOTE
Both the shell and maintenance compartment of the inverter provide a ground point. Select either
for connecting the ground cable.
•If you connect a ground cable to the ground point on the chassis shell, you are recommended to
use a four-core (L1, L2, L3, and N) outdoor copper-core cable for the SUN2000-33KTL/33KTL-
E001. If you connect a ground cable to the ground point in the maintenance compartment, you
are recommended to use a five-core (L1, L2, L3, N, and PE) outdoor copper-core cable.
•If you connect a ground cable to the ground point on the chassis shell, you are recommended to
use a three-core (L1, L2, and L3) outdoor copper-core cable for the SUN2000-30KTL-A/40KTL.
If you connect a ground cable to the ground point in the maintenance compartment, you are
recommended to use a four-core (L1, L2, L3, and PE) outdoor copper-core cable.
•You need to prepare OT terminals by yourself: The OT terminal corresponding to the SUN2000-
33KTL/33KTL-E001 AC output power cable is of M6 model and matches a cable with the
maximum cross-sectional area of 25 mm2. The OT terminal corresponding to the SUN2000-
30KTL-A/40KTL AC output power cables is of M8 model and matches a cable with the maximum
cross-sectional area of 35 mm2. The OT terminal corresponding to the ground cable is of M6
model and matches a cable with the maximum cross-sectional area of 25 mm2.
NOTE
Inverter Model
Conductor Cross
-Sectional Area
Cable Outer Diameter
Range
Recommended
Value
Range
Recommended
Value
SUN2000
-
33KTL/33KTL
-E001
16
–25 mm2(or 6–3
AWG)
16 mm
2or 6
AWG
24
–32 mm
28 mm
SUN2000
-30KTL-A
/
40KTL
16
–35 mm2(or 6–2
AWG)

4
1. Remove the two screws from the maintenance compartment door using a hex key and set them
aside.
1. Obtain the hex key and reserved screws
from the fitting bag bound to the reinforcing
rib at the chassis base.
2. Do not leave unused screws in the chassis.
3. Do not open the host panel of the inverter.
4. Before opening the maintenance
compartment door, switch off the
downstream AC output circuit breaker and
DC SWITCH.
NOTICE
2. Open the maintenance compartment door and
install the support bar available in the fitting bag
bound to the reinforcing rib at the chassis base.
3. Remove the AC terminal cover.
4. Remove an appropriate length of the jacket and insulation layer from the AC output cable using
a wire stripper.
a. SUN2000-33KTL/33KTL-E001
(excluding the ground cable)
c. SUN2000-30KTL-A/40KTL (excluding
the ground cable)
b. SUN2000-33KTL/33KTL-E001 (including
the ground cable)
d. SUN2000-30KTL-A/40KTL (including the
ground cable)
JacketInsulation layer
Core wire

5
7. Remove the locking cap from the AC OUTPUT waterproof cable connector at the inverter
bottom and remove the plug from the locking cap.
8. Route the AC output power cable into the locking cap and the AC OUTPUT connector at the
inverter bottom.
9. Connect the wires of the AC output cable for the SUN2000-33KTL/33KTL-E001 to L1, L2, L3,
and N on the AC terminal block. Secure the screws using a 10 mm socket wrench. Connect the
wires of the AC output cable for the SUN2000-30KTL-A/40KTL to L1, L2, and L3 on the AC
terminal block. Secure the screws using a 13 mm socket wrench. If you connect a ground cable
to the ground point in the maintenance compartment, tighten the ground screw using an M6
torque screwdriver.
5. Insert the exposed core wires into the crimp area of the OT terminal and crimp them using
hydraulic pliers.
6. Wrap the wire crimp area with heat shrink tubing or PVC insulation tape.
If heat shrink tubing is used, put it through the power cable and then crimp the OT terminal.
NOTE
M6
4 N·m
M8
8 N·m
a. SUN2000-33KTL/33KTL-E001
(excluding the ground cable)
c. SUN2000-30KTL-A/40KTL (excluding
the ground cable)
b. SUN2000-33KTL/33KTL-E001 (including
the ground cable)
d. SUN2000-30KTL-A/40KTL (including the
ground cable)
M8
8 N·m
M6
4 N·m
M6
4 N·m
10.Use a torque wrench with an open end of 52 mm to tighten the locking cap to a torque of 7.5
N·m, and seal the waterproof connector.
•Ensure that the AC output power cable is connected securely. Otherwise, the inverter may fail to
operate or experience a fault that will damage the terminal block. For example, the inverter may
generate heat during operation due to unreliable connection.
•If the nverter is insecurely installed and the AC output power cable bears the pulling force,
ensure that the last cable bearing the force is the PE cable.
NOTICE

6
Optional DC input terminals
Number of
Inputs
SUN2000
1
Connects
to any one route
2
Connects to
routes 1 and 3
3
Connects to
routes 1, 3, and 5
4
Connects to
routes 1, 2, 3, and 5
5
Connects to
routes 1, 2, 3, 4, and 5
6
Connects to
routes 1, 2, 3, 4, 5, and 6
Routes 1, 2, 3, 4, 5, and 6 are defined
from left to right.
NOTE
Installing DC Input Power Cables
2.3
1. Use the positive and negative metal contacts and DC connectors supplied with the SUN2000.
Using other models of positive and negative metal contacts and DC connectors may result in
serious consequences. The caused device damage is not covered under any warranty or
service agreement.
2. The metal contacts supplied with the DC connectors are either cold forming contacts or
stamping forming contacts. Crimp the metal cold forming contacts using crimping tool
H4TC0001 (Amphenol). Crimp the metal stamping contacts using crimping tool H4TC0002
(Amphenol). Choose the crimping tools that fit the metal contact types. Do not mix up 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 contacts of the positive and negative power cables into the appropriate
positive and negative connectors. Then pull back 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 back the DC input power cables to ensure that they are connected securely.
6. If the DC input power cables are reversely connected and the DC SWITCH is ON, do not turn off
the DC SWITCH immediately. Otherwise, the inverter may be damaged and the damage is
beyond the warranty scope. Wait until the PV string voltage reduces to the safety range (below
60 V DC). Then, turn off the DC SWITCH,remove the positive and negative connectors, and
rectify the connection.
NOTICE
WARNING
•Ensure that the PV string is well insulated to the ground.
•Before inserting the positive and negative connectors respectively into the positive and negative
DC input terminals of the inverter, check that the DC voltage does not exceed 1000 V DC using
a multimeter and that the cables are connected correctly. Otherwise, the inverter will be
damaged.

7
Positive connector
Negative
connector Click
Ensure
that the
locking nut
is secured.
H4TW0001
(Amphenol)
Ensure that the
cables are correctly
connected and the
voltage does not
exceed 1000 V DC.
Positive metal contact
Negative metal contact
Common PV cables with a
cross-sectional area of 4 mm²
are recommended.
Ensure that cables cannot
be removed after crimped.
H4TC0001 (Amphenol)
Positive connector
Negative
connector Click
Ensure
that the
locking nut
is secured.
H4TW0001
(Amphenol)
Ensure that the
cables are correctly
connected and the
voltage does not
exceed 1000 V DC.
Positive metal contact
Negative metal contact
Common PV cables with a
cross-sectional area of 4 mm²
are recommended.
Ensure that cables cannot
be removed after crimped.
H4TC0002 (Amphenol)
Installing a DC input power cable (using metal cold forming contacts)
Installing a DC input power cable (using metal stamping forming contacts)

8
2.4
Model
Communication Mode
Remarks
RS485 PLC
SUN2000
-30KTL-A
(with PLC)
Supported
Supported
1.
Only one communications mode
can be selected in application
scenarios.
2. If PLC is used, you do not have to
connect any cable to the inverter,
but have to connect AC power
cables to the PLC CCO module or
SmartLogger2000. For detailed
operations, see the
PLC CCO01A
User Manual or
SmartLogger2000
User Manual.
3.
If RS485 is used, do not connect
the PLC CCO module to the AC
power cable.
SUN2000
-33KTL/33KTL-E001
(with PLC
)
Supported
Supported
SUN2000
-40KTL
(with PLC
)
Supported
Supported
SUN2000
-30KTL-A
(without PLC
)
Supported
Not supported
SUN2000
-33KTL
(without PLC
)
Supported
Not supported
SUN2000
-40KTL
(without PLC
)
Supported
Not supported
Selecting a Communication Mode
Installing RS485 Communications Cables
2.5
1. When routing communications cables, ensure that communications cables are separated from
power cables and away from interfering source to prevent communication from being affected.
2. RS485 communications cables can be connected to the terminal block or RJ45 ports.
Connecting to the terminal block is recommended.
NOTICE
1. Remove an appropriate length of the insulation layer from the cable using a wire stripper.
Method 1: Connecting to the terminal block (recommended)
The DJYP2VP2-22 2x2x1 network cable or a communications cable with a cross sectional area of
1 mm2and external diameter of 14–18 mm is recommended.
2. Remove the locking caps from the COM1 and COM2 waterproof cable connectors at the inverter
bottom and remove the plugs from the locking caps.
3. Route the cables through the locking caps and then the COM1 (RS485 IN) and COM2 (RS485
OUT) connectors at the inverter bottom.

4. Connect the input end to terminals 5 and 7 on the terminal block and connect the output end to
terminals 6 and 8 on the terminal block. Tighten the terminals using an M3 flat-head screwdriver
to a torque of 0.5 N·m. Connect the shield layer to the ground point and tighten the screw using
an M4 Phillips torque screwdriver to a torque of 1.2 N·m.
9
6. Use a torque wrench with an open end of 33 mm to tighten the locking caps to a torque of 7.5
N·m, and seal the waterproof connector.
5. Bind the RS485 communications cables.
When connecting the shielded cable, choose whether to crimp the OT-M4 terminal based on site
requirements.
NOTE