DPU40D-N06A3, DBU20B-N12A3, and DBU50B-N12A1 Distributed
Power Quick Guide
Issue: 05
Date: 2020-02-29
1
Overview
Power supply unit (PSU):
DPU40D-N06A3 (≈ 7.5 kg)
(Unit: mm)
PSU Indicator Color
Status
Off
Steady on
Run indicator
Green
Blinking slowly (0.5 Hz) The PSU communicating with the host properly
Blinking fast (4 Hz)
Off
Steady on
Fault indicator
Red
Blinking slowly (0.5 Hz)
Lithium
Battery
Color
Status
Indicator
Off
Steady on
Run indicator
Green
(RUN)
Blinking slowly (0.5 Hz) The lithium battery is communicating properly with monitoring equipment
Blinking fast (4 Hz)
Off
Steady on
Alarm
Red
indicator (ALM)
Blinking slowly (0.5 Hz)
2
Installation Scenarios
NOTE
There are two pole-mounting scenarios. In the large pole scenario, the pole diameter is 114 mm to 400 mm. In the small pole scenario, the pole
diameter is 60 mm to 114 mm. Select an appropriate pole based on site requirements. The following uses the small pole scenario as an
example.
•
If multiple PSUs are configured, they can be cascaded by connecting BAT and LOAD ports or by interconnecting LOAD ports. It is
recommended that DC loads be equally distributed on the PSUs.
•
This section uses a maximum of two lithium batteries as an example.
Lithium
DBU20B-N12A3 (≈ 20 kg)
battery:
DBU50B-N12A1 (≈ 26 kg)
(Unit: mm)
Meaning
The PSU has no power input (no AC input and no battery input)
Start / Self-check / Load (instantaneous status during startup or upgrade)
The PSU is not communicating with the host properly
The PSU is proper
The PSU is faulty: Rectifier Fault/Monitoring Address Conflict/Monitoring Unit Fault
An alarm that can be cleared is generated on the PSU: Rectifier Protection/Power off/
Communication Failure/Rectifier Power Failure/Parallel Fail/AC Overvoltage/AC Undervoltage
Meaning
The lithium battery has no power input or is faulty
Board startup / self-check / loading / activation / board power-on when no software is loaded
The lithium battery fails to communicate with monitoring equipment
The lithium battery is proper
The lithium battery has alarms that cannot be cleared: Board Hardware Fault/Heater
Fault/Electrochemical cell fault/Duplicate address
The lithium battery has alarms that can be cleared: Discharge Overcurrent Protection/Charge
Overcurrent Protection/High Temperature protection/Low Temperature Protection/Abnormal
shutdown/Charge Overcurrent Protection/Discharge Overcurrent Protection
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Installation
Installation
Max.
Scenario
Method
Capacity/Layer
2 PSUs +2 lithium
batteries (Install
the first battery
Side
exactly on the pole,
Small pole
mounting
the second battery
on its left side, or
two PSUs on its
right side.)
Small pole,
wall,
Flush
1 PSU + 1 lithium
large pole,
mounting
battery or 2 PSUs
channel steel,
angle steel
1
Max. System
Configuration
4 DC PSUs (DPU40D)
+ 8 lithium batteries
(DBU20B/DBU50B)
If the system
configuration
exceeds the
maximum
capacity/layer,
install the
modules on
different layers.