Maintenance; Trouble Shooting - Pylontech PowerCube-X1 Operation Manual

5.

Maintenance

5.1 Trouble Shooting:

Danger: The PowerCube-X1/X2 is a high voltage DC system, operated by qualified and authorized
person only.
PowerCube-X1/X2 est un système à courant continu à haute tension, opéré uniquement
par le personnel qualifié et autorisé.
Danger: Before check the failure, must check all the cables connection and the BESS system can turn
on normally or not.
Danger : Avant le contrôle de panne, il faut contrôler toutes les connexions des câbles et si le système
BESS peut s'allumer normalement ou non.
No Problem
1
Turn on the BMS. All battery
modules' status LED is not
working.
2
Turn on the BMS. The Status LED
for BMS is not working. But all
battery modules' status LED is
lighting green.
3
Turn on the BMS. The Status LED
is lighting red. But all battery
modules' status LED is lighting
green.
The BMS's Status LED is lighting
red and some the battery
4
module's status LED is lighting
green but some is lighting red.
5 Cannot close the power Switch.
Possible Reason
The DC/DC power board

or control board is failure.
The communication cable

from BMS to the first battery
module is broken
Power cable is broken;

The control board is failure.

 This battery string is under
protection. It is possible Over
Current Protection or Failure
Protection.
 No external communication
with upper controller;
 Battery String is reversed
connection.
 This battery string is under
protection. It is possible Over
Current, Over Voltage, Low
Voltage, Over Temperature,
Low Temperature or Failure
Protection.
DC Output breaker is fault.

33
Solution
Change the control

module (BMS module).
Change the broken

communication cable;
Check all the power

cables and connections
are fine or not;
Change the control

module (BMS module).
 Through the monitor
maintenance software
check the battery
battery module has alarm or
not.
 Check communication with
upper controller
communication
wiring;
 Reversed connection
serious danger!
 Use the monitor
maintenance software to
check the battery
battery module
protection and failure or not.
Check the DC output breaker is
fault or not. If it is fault, change
or
cell,
and
cable
is
or
cell,
has