INVT BD Series User Manual

Model
BD3KTL
-RL1
BD3K6TL
-RL1
BD4KTL
-RL1
BD4K6TL
-RL1
BD5KTL
-RL1
BD6KTL
-RL1
Voltage
Nominal voltage of DC breaker should be
larger than maximum voltage of
battery.
Current[A]
160A
6.4 Battery
Connection
Charging & discharging system of BD series inverter is designed for
high-voltage lithium battery.
Before choosing battery, please note the maximum voltage of battery
can not
exceed 59V and the rated voltage of battery can not exceed 48V,
and the battery communication should be compatible with BD Hybrid
inverter.
 Battery breaker
Before connecting to battery, please install a nonpolarized DC breaker to
make sure inverter can be securely disconnected during maintanance.
 Battery connection
diagram

Power Connection Steps:
Step1. Choose the 2 AWG wire and strip the cable to 15mm.
Step2. Select two O-terminals with an aperture of M6.
Step3. Insert the stripping line into the O-terminal and clamp it with a crimping
clamp. Step4. Remove waterproof cover plate.
Step5. Disassemble the waterproof connector and pass the cable through
the waterproof connector.
S. tep6. Connect the cable to the terminal of the inverter .
.Step7. Assemble waterproof connectors and waterproof covers plate.
+
CAN/ RS485
Nonpolarized
DC breaker
Power connection
48V lithium battery
Note: When working with Pylontech batteries, It is recommended the number of battery
module (H48050-15S) is 2-7 and the number of battery manager system (SC0500A-100S) is 1.
Communication connection
 BMS PIN Definition
Communication interface bewteen inverter and battery is RS485 or CAN
with a RJ45 connector.
Note！
The battery communication can only work when the battery
BMS is compatible with the inverter.
1
8
Electrical Connection Electrical Connection
Step1,2,
3.
Step4
.
Step5
.
Step6,7.
PIN
1
2
3 4
5
6 7 8
CAN
De
fi
niti
on
X
X
X
BMS_CANH
BMS_CANL
X X X
Rs485
De
fi
niti
on
X
X X X X GND
BMS_485A
BMS_485B
When using RS485 protocol, please note that PIN2 must be disconnected.
BAT
Note: BAT port, not PV port!The positive pole on the left and
the negative pole on the right.
Note！
Positive and negative lines are not allowed to
reverse.
30
31

INVT BD Series Specifications

General

Brand	INVT
Model	BD Series
Category	Inverter
Language	English