REV020620
SimpliPhi Power, Inc. | 3100 Camino Del Sol | Oxnard, CA 93030, USA | (805) 640-6700 |
| 28 |
6.0
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Troubleshooting
If your PHI Battery bank is reaching its Low Battery Cut Out voltage (LBCO), load disconnects or load shedding set
points may need to be adjusted.
The PHI batteries are reading extremely low or no voltage:
Programmed settings in the PHI Battery’s accompanying Balance of System equipment sho
uld prevent the PHI
Battery’s internal BMS from reaching its low voltage setting. However, in the instance that the PHI Battery’s BMS
has turned the PHI battery off, the battery will read low or no voltage, and the following steps should be taken to re-
set the BMS:
1.
Turn off each of the built-in breakers in all of the PHI Batteries in the battery bank*.
2.
Turn off the main DC disconnect located in the inv
erter’s power panel, between the battery bank and the
inverter.
3.
Turn off the main breaker at the top of the
inverter’s AC distribution panel or sub
-panel.
4.
Wait 5 minutes, for the BMS in each battery to re-set itself.
5.
Use a multi meter to take voltage measurements of each PHI battery in the battery bank, to make sure the
voltage increased to the minimum voltage necessary for the inverter to turn on.
To measure a single battery’s voltage within a battery bank, only the
battery being measured has its built-in breaker
in the ON (I) position; all other batteries in the bank must have their built-in breakers OFF (0).
6.
Turn on each of the built-in breakers in all of the PHI Batteries in the battery bank.
7.
Turn on the main DC di
sconnect located in the inverter’s powe
r panel.
8.
Check that all parameters in the Balance of System equipment are programmed according to the relevant
SimpliPhi Integration Guide. Failure to do so will damage the PHI batteries and Void the Warranty.
9.
To charge the batteries quickly, SimpliPhi recommends using an AC power source to immediately charge the
PHI battery bank via the inverter’s charger. However, the PHI batteries will not incur any damage if they are
charged using a connected solar PV array via the charge controller. The important aspect of this step is that
the batteries re-charge as soon as the BMS has re-set.
10.
Turn on the inverter’s AC Input breaker and turn on the inverter.
11.
The inverter should automatically self-initiate a battery charge. However, a Force Charge may need to be
initiated in the inverter.
*This process can be duplicated with PHI battery models that do not include built-in breakers. To re-set the BMS on
the PHI battery models that are equipped with Anderson Connectors, disconnect the PHI Battery at the Anderson
Connector instead of the built-in breaker.
