16
3.
MEASUREMENT
3.1 Voltage measurement on pin 7&8
Measure the voltage of pin 7 & 8 while the other side of the cable is connected to the
IN port
of
the Battery and while the Battery is powered on. Voltage should be around 50V.
Note: Pin 7 and pin 8 are very close. It may cause short circuit if they are measured directly! It is
better to take a tool as shown in Figure 5.
Figure 6 bypass module 2
BMU
Option 1
Option 2
Figure
5
voltage measurement on pin 7&8
3.2 Identifying a faulty module / Module Exclusion Method
-
Normally a faulty module can be identified with the
BCP, BC app or by the LED Code in the
battery
module.
In
this
case,
bypass
the
module
with
the
Event
Code,
and
commission
the
remaining
system
(if
it
still
complies
with
the
minimum
configuration
list)
and
check
if
it
runs
properly.
If the problem remains, please also
bypass
the module above the one with the Event Code.
-
Otherwise, try the LV Flex Lite Modules one by one to identify a possibly faulty module.
If no LED on a module or more modules, check the one above the affected module first, and then
the affected one. For example, in a LV Flex Lite system with 4 modules, If top modules have
active LED but bottom modules don`t, it indicates a connection issue between modules. If
module 1&2 have
LED,
module
3&4
don`t
have
LED.
Issue
is
in
the
connection
between
module
2
&3.Problem likely to be module 2 (less likely: module 3).
-
Bypass the affected module and check whether problem disappears. If not, check the module
below. To bypass module
2, just connect module 1 directly with module 3 as shown Figure 6.
