Huawei SUN2000L-5KTL Quick Manual page 3

2. Connect the AC connector to the AC output port.
To remove the AC connector from the SUN2000L, perform the operations in reverse order.
The right figure shows how to remove a plug insert.
Installing the DC Input Power Cable
3.4
1. Assembling the DC Connector
using metal cold forming contacts
Positive metal terminal
Ensure that the cable will not
Negative metal terminal
be extracted after crimped.
using metal stamping forming contacts
Positive metal terminal
Ensure that the cable will not
Negative metal terminal
be extracted after crimped.
2. Connecting the DC Input Power Cable
Pull the DC input power cable
back to ensure that it is
connected securely.
(Optional) Installing the Battery Cable
3.5
Assemble the blue positive and negative connectors by following the instructions in section 3.4 "Installing the DC Input Power Cable."
Save the watertight
caps for later use.
(Optional) Installing the Signal Cable
3.6
NOTICE

When laying out signal cables, separate them from power cables to avoid strong signal interference sources.
 The protection layer of the signal cable is in the connector. Surplus core wires are cut off from the protection layer. The exposed core wire
is totally inserted into the cable hole and connected securely.

Do not confuse the connector to the COM port and the connector to the ALARM port.
 If a connector needs to connect to only one signal cable, block the unused cable hole in the seal using a cap and tighten the cable gland.
 If a connector needs to connect to two signal cables, ensure that the cables have the same outer diameter.
Positive connector
Negative connector
Pull the DC input power cable
back to ensure that it is
connected securely.
Positive connector
Negative connector
Pull the DC input power cable
back to ensure that it is
connected securely.
1. Ensure that the PV string is well insulated to ground.
2. The metal contacts supplied with the DC connectors are either cold forming contacts or
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stamping forming contacts. Crimp the 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 fit the metal contact types. Do not
mix up the tools.
3. The SUN2000L DC input voltage must always be lower than or equal to 600 V DC.
4. Before installing the DC input power cable, label the cable polarities correctly to ensure
correct cable connections.
5. Use the positive and negative connectors supplied with the SUN2000L.
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. This damage is not covered under any
warranty or service agreement. Wait until the solar irradiance declines at night and the PV
string current reduces to below 0.5 A, and then turn off the DC switch and remove the
positive and negative connectors. Correct the string polarity before reconnecting the string
to the SUN2000L.
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Pull the battery cable back to ensure
that it is connected securely.
3
3. Check the route of the AC
Ensure that
the locking nut
is secured.
Ensure that
the locking nut
is secured.
DANGER
 The battery voltage will result in fatal injury. Use dedicated
insulation tools to terminate cables.
 Ensure that the battery cable is correctly connected. Avoid
reverse polarity.
 If the battery is connected with reverse polarity, the inverter
may be damaged.
output power cable.
Ensure that the
cables are correctly
connected.
Ensure that the
cables are correctly
connected.