Pylontech PowerCube-M1-C Operation Manual page 53

Self-test Self-test
error（Bit10）
Battery Battery
cell damage error
（Bit6）
Comm. BMIC
and
（Bit8）
hardware
Comm. Internal
and Comm.
hardware
（Bit2）
Comm. BMU
bus error （ Bit18）
and
hardware
Comm. BMS
bus error（Bit9）
and
hardware
volt Battery cell
measurement
mismatch with DCBUS
voltage measurement
Battery cell
measured at <2.0V
error Sensor chip error
Communication
ERR offline
module and BMS
Internal BMU internal error
Internal CMU internal error or
I2C issue
service engineer.
voltage 1. Restart
2.Check the connectivity and reliability
of the power and comm. cable by
reconnection.
3. Swap the current measurement
board or BMS
4.If problem remain, contact Pylontech
service engineer.
voltage 1. Restart
2. Swap out the RED LED module
3. Use multimeter to measure the
battery
voltage, if is the same as the BMS
reading value, then it`s a true cell
damage. Otherwise please swap the
BMU of the module.
1. Restart
2. If observed a module LED is off, try to
bypass the module on both comm.
and power side and see whether rest
modules` LED could be on and green.
If so, then please change the BMU of
the bypassed module. If not, further
bypass the next LED off module and
repeat the process.
3. If problem
Pylontech service engineer.
1. Check
between reliability of the comm. cable between
BMS and battery modules.
2. Restart
3.If problem remain, contact Pylontech
service engineer.
1. Change the BMU of the RED LED
module.
2.If problem remain, contact Pylontech
service engineer.
1. Restart
2.Change the current measurement
board
3. Change the CMU or BMS.
4.If problem remain, contact Pylontech
service engineer.
48
module power terminal
remain, contact
the connectivity and