2. ERROR ANALYSIS
Please refer to the general steps before proceeding, see chapter 1.
2.1 BCU can not be switched on
No reaction, LEDs on the BCU board do not light up, although the system switch is switched on.
No.
Name
Description
11
Voltage measurement
Please measure the voltage as shown in step 2.10 .
12
Visual check
See step 2.11
13
BCU exchange
Only if voltage and visual examination look good:
Test another BCU, if available.
2.2 BCU system switch falls after a few seconds
Battery does not stay on for more than 30 seconds. Therefore you can not enter the web interface to read the event codes.
No.
Name
Description
14
Voltage measurement
Please measure the voltage as shown in step 2.10 .
15
Check the individual
modules (variant 2)
See step 2.13
2.3 Current Alarm: BatteryCommErr
Error probably caused by a communication failure between two modules or within a module.
No.
Name
Description
16
Visual check
See step 2.11
17
Check the individual
modules (variant 2)
See step 2.12
2.4 Current Alarm: MonitorCommErr
Error probably caused by the battery module on top or the BCU.
No.
Name
Description
18
Visual check
See step 2.11
19
Check BCU and top
module
Remove the top module from the tower.
- If the "MonitorCommError" error is no longer displayed in Current Alarm , the
topmost module may be faulty. If available, exchange the module with another
one.
- If the error "MonitorCommError" continues to be displayed, the error could be
due to the BCU. If available, exchange the BCU as a test.
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