February 2020
|
Solar Stik
®
, Inc.
80
|
System Setup and Operation Manual for ATSC MS3 L0
It is most important to maintain Li Expander Paks in such a way that they will never reach a
red-flash state
Li Expander Pak–related Troubleshooting
Battery
Status
LED
Power
Switch
Figure 28. 24VDC Li Expander Pak 2400
Problem
Red-flash or no-light Battery Status LED
Solution
With the Power switch in the ON CHARGING/OPERATION position, push the momentary switch to
check the Battery Status LED. Consult the Expander Pak Operator Manual to resolve the issue.
Battery Status LED
Color Frequency Condition
Green
Flashing
Normal operation
Red
Flashing
Protection circuits engaged
1. Cell overvoltage
2. Cell undervoltage
3. Overcurrent (charge or discharge)
4. Overtemperature (> 160 ºF/71 ºC)
5. An internal battery fault (such as a broken
wire, dead cell, internal short circuit, etc.)
None
N/A
Battery inoperative
Table 5. Battery Status LED Color and Corresponding Condition
Expander Pak Circuit Breakers Tripping
Cause
The batteries have varying states of charge possibly because the initialization and calibration steps
were omitted or battery SOC parity was lost due to improper cycling.
Solution
Charge the hybrid system’s bank of batteries fully to equalize the states of charge among the
Expander Paks (see:
SOC Disparity Among Expander Paks
).
