Commissioning
Fault number 12
If the red indicator turned on together with the blue indicators showing fault number
12 in binary form, try these steps:
1. Make sure that the communication settings are properly configured on the higher
level system.
• CAN 2.0B: 500 kpbs
• Modbus 485: 19200 bps
2. Make sure that the pin assignments match between the higher level system’s
Modbus or CAN interface and the higher-level communication cable. See
sistor for the communication interface of the higher-level system
on page 20.
3. Make sure that a resistor is properly installed on the Modbus or CAN interface
of the higher-level system. See
Resistor for the communication interface of the
on page 20.
4. Make sure that the higher-level communication cable is properly connected be-
tween the master module and the higher-level system.
5. Re-activate the ESS.
The green and red indicators are on simultaneously
The green and red indicators are on simultaneously as long as there is a voltage dif-
ference between any of the battery modules. Wait for all the modules to reach the
same voltage, and the red indicator turns off. The battery module with the lowest
voltage charges first, and then the others charge one by one.
Some of the blue indicators flash
Among the battery modules, there are one or more different models. Remove all the
communication cables from the battery modules to find different models. For details
on how to identify a module’s model number, see
on
page 24.
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