Connecting the Battery Supply
Wear insulated gloves and use insulated tools to prevent electric shocks or short circuits.
During the power-on procedure, power off the batteries immediately if any fault is detected. Rectify the fault before proceeding with the procedure.
Fully charge batteries (the SOC must reach 100%) before using them for the first time. Replace a battery only if it is faulty.
- Start the BCU. The status of the running indicator and fault indicator on the BCU changes accordingly, as described in Table 6-1.
- Single SmartLi cabinet: Hold down the POWER ON/OFF button on the BCU of the SmartLi for more than 2s.
- Multiple SmartLi cabinets are connected in parallel: Hold down the POWER ON/OFF button on the BCU of each SmartLi for more than 2s.
Table 6-1 BCU indicator status changeChange Order
Indicator Status
Description
1
Running indicator (green): blinking at short intervals (on for 0.25s and off for 0.25s)
The power button is pressed.
2
Running indicator (green): blinks intermittently (on for 1s and off for 4s)
Standby state. The SmartLi circuit breaker cannot be switched on.
3
Running indicator (green): blinks at super short intervals (on for 0.1s and then off for 0.1s)
Fault indicator (red): steady on
Standby state. The SmartLi circuit breaker can be switched on. If the fault indicator is steady red, a BCB off alarm is displayed on the LCD of the SmartLi, and no action is required. The alarm will disappear after the battery circuit breaker is switched on.
- On the SmartLi LCD, set the language, time, date, network parameters, system parameters, and alarm parameters on the Settings Wizard screen, and tap Finish.
Obtain network parameters from the customer.
Table 6-2 System parameter descriptionParameter
Description
Default Value
Value Range
Battery cabinet quantity
Specifies the total number of battery cabinets. Set this parameter based on the actual number of battery cabinets.
1
1–15
Charging mode
- Mode 1 indicates the standard charging mode. This value is recommended.
- Mode 2 meets the requirements for charging batteries immediately after discharging is complete at a high temperature.
Mode 1
Mode 1, Mode 2
Cell undervoltage protection threshold (V)
You can adjust the cell voltage at the end of discharge (EOD) as required. A smaller value indicates a lower battery level after EOD. You are advised to retain the default value.
2.70
2.50–2.80
Battery undervoltage protection time (h)
If batteries have not been charged for a long time when they are running, set the automatic battery switch-off time to prevent batteries from being damaged due to overdischarge. Set this parameter based on the site requirements.
8
8–3000
Table 6-3 Alarm parameter descriptionParameter
Description
Default Value
Value Range
Battery cabinet EPO
Before setting this parameter to Enable, ensure that the EPO cable is correctly connected. After it is set to Enable, the EPO switch can be triggered to perform EPO.
Disable
Disable, Enable
Copper bar overtemperature
- If this parameter is set to Enable, an alarm is reported when the copper bar is overheated.
- If this parameter is set to Disable, no alarm is reported when the copper bar is overheated.
Enable
Disable, Enable
Fire extinguisher cylinder pressure abnormal
- If this parameter is set to Enable, an alarm is reported when the fire extinguisher cylinder pressure is abnormal.
- If this parameter is set to Disable, no alarm is reported when the fire extinguisher cylinder pressure is abnormal.
Enable
Disable, Enable
Battery overcurrent (discharge)
- If this parameter is set to Enable, an alarm is reported when battery overcurrent occurs during battery discharging.
- If this parameter is set to Disable, no alarm is reported when battery overcurrent occurs during battery discharging.
Disable
Disable, Enable
Battery overtemperature
- If this parameter is set to Enable, an alarm is reported when battery overtemperature occurs.
- If this parameter is set to Disable, no alarm is reported when battery overtemperature occurs.
Disable
Disable, Enable
Module quantity mismatch 4
- If this parameter is set to Enable, an alarm is reported when the number of battery modules is 8+7 or 7+6.
- If this parameter is set to Disable, no alarm will be reported when the number of battery modules is 8+7 or 7+6.
Enable
Disable, Enable
- On the UPS LCD screen, choose and check that Battery Type is set to Lithium battery.
- Observe the status of indicators on the BCU.
- Single SmartLi cabinet: If the green indicator on the BCU blinks at super short intervals (on for 0.1s and then off for 0.1s) and the red indicator is steady on, switch on the battery circuit breaker. The battery supply is connected.
- Multiple SmartLi cabinets connected in parallel: If the green indicator on the BCU of any SmartLi cabinet blinks at super short intervals (on for 0.1s and then off for 0.1s) and the red indicator is steady on, switch on the battery circuit breaker in the SmartLi cabinet. Then, the running indicators on all the other BCUs blink green intermittently (on for 1s and then off for 4s). Perform step 5 to switch on the battery circuit breakers in other SmartLi cabinets in sequence.
- Wait about 1 minute and then switch on the battery circuit breaker in any SmartLi cabinet where the green indicator on the BCU blinks at super short intervals (on for 0.1s and then off for 0.1s) and the red indicator is steady on. Switch on all SmartLi battery circuit breakers in the same way. The battery supply is connected in the scenario where multiple SmartLi cabinets are connected in parallel.
