PowerRack HV4 User Manual
22
4 Maintenance
4.1 Trouble shooting
Danger:
The PowerRack HV4 battery system is a high voltage DC system, operated by
professional and authorized person only.
Danger:
Before check the failure, must check all the cables connection. Switches are
right or not (refer to section 3.2.4), and if the battery system can be woken up normally.
No
Problem
Possible Reason
Solution
1
The battery has no
voltage output, and
“POWER ON”/
“POWER WAKE” Light
is off.
The DC breaker of the
BDU didn’t be turned on
Turn on the DC breaker
of BDU
2
The "POWER ON" switch
of the BDU box was not
switched on
Switch on the "POWER
ON" button
3
Battery is in sleep state.
Long press the "POWER
WAKE" button for about
3S
4
The fuse in the BDU box
is faulty
Replace fuse
5
Battery gets into over-
discharged protection
Charge the battery to
relieve the protection
state
6
The battery has no
voltage output, but
“POWER ON”/
“POWER WAKE” are
on
The relay in BDU is faulty
Replace a new BDU
directly
7
When the battery is
connected to the
inverter, the DC
breaker trips
automatically
The circuit between the
battery and the inverter
has a short circuit point
Check whether there is a
short circuit in the circuit
between the battery and
the inverter
；
Check if the
inverter is faulty
8
Communication failure
between battery and
inverter
The wrong battery model
type is selected on the
inverter
Select correct battery
model type on the
inverter
4.2 Replacement of main component
Danger:
The PowerRack HV4 battery system is a high voltage DC system, only can be
operated by professional and authorized person.
4.2.1 Replacement of Battery Controller (BDU)
4.2.1.1 Turn off the whole battery system. Ensure the Negative terminal and Positive
terminal have no power. The shutdown progress refers to section 3.2.5
4.2.1.2 Remove the four screws on the BDU and remove the BDU from the system.
Summary of Contents for PowerRack HV4
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