Solar Stik 21-0202317, Operator And Maintenance Manual

Page: 26 / 37

Operator and Maintenance Manual for the 24VDC Li ESM 2000
April 2022 | Solar Stik® Inc. 26 |
Notifications and Faults
Notifications and faults are found on the diagnostic screen. To access the diagnostic screen, push
the refresh button once to refresh the display then a second time for the diagnostic screen.
Notifications:
Battery Offline – This notification indicates that the Battery Status Indicator lost communication with
the battery. It may have taken itself offline to protect from over-discharge. Toggle the POWER switch
to clear notification. If this doesn’t clear the fault, apply a charging source with the POWER switch
turned ON for at least two (2) minutes. If this fails to clear the fault, contact Solar Stik.
Battery Voltage Low
– “Battery voltage low” fault occurs when the ESM battery voltage falls
below 20 VDC. It is only a notification. It does not cause the battery to shut off. This notification
automatically clears after charging brings voltage to >20 VDC.
Faults:
The battery may report one or more faults at a time on the diagnostic screen. If a condition other than
the ones shown below appears, contact Solar Stik for assistance. Faults place the ESM 2000 into
Protected mode until the fault is corrected and the ESM returns to Operational mode or , if the fault is
not cleared in 60 minutes, the ESM 2000 will enter Storage mode even if the POWER switch remains
in the ON position.
Table 1. Faults reported on diagnostic screen: and solutions
Fault Name Value Exceeded Clear Value
Critical Cell Overvoltage for 2
minutes
Max Cell V > 4.2000 V Max Cell V < 3.8000 V
Critical Cell Undervoltage
Cell Voltage < 2.00 V @ < 120 A
discharge (battery voltage < 16.0 VDC)
Automatically clears fault one time
after 2-minute delay. If fault occurs
again without charging battery for 2
minutes, must clear by charging for 2
minutes or toggling the POWER switch
ON>OFF>ON.
Critical Cell Temp High Max Cell Temp > 76 ºC Reduce Cell Temp to < 65 ºC
Critical Board Temp High Max Elec Temp 1 or 2 > 120 ºC Reduce Max Elec Temp to < 90 ºC
Hardware Overload Current > 3000 A
2-minute cool down, followed by toggling
the POWER switch ON>OFF>ON
Fast Software Overload Current > 1500A 30 ms
2-minute cool down, followed by toggling
the POWER switch ON>OFF>ON
Software Overload Max Elec Temp 3 > 135 ºC
2-minute cool down, followed by
reducing Elec Temp 3 to < 90 ºC
ESM 2000 TROUBLESHOOTING
Frequent visual monitoring of ESM 2000 Battery Status Indicator for all batteries in a bank is the best
method to ensure each battery is operating normally. The SOC should be approximately the same
for each battery. The voltage reported in the upper left corner is bus voltage when the ESM 2000 is
connected to an active system and battery voltage when it is disconnected from all other equipment.
If a NOTIFICATION or FAULT is displayed on the screen take the prescribed corrective action to clear
the fault.