LV-HUB V 1.00 February 2022
Low Voltage CAN HUB Dimensions ( rack Mounted version is 19`` width)
Weight: Kg: 8
Control Logic and Protection Limit
The inverter, if applicable, must be set with the below restrictions in addition to the BMS
control logic.
MAX CURRENT CONTROL LOGIC ( From LV HUB to certified inverters)
*Please refer to the above table according to the number of clusters and parallels applicable to the system.
1. The charge current will be limited to zero Amps when the single module voltage has been reached 56.8V.
2. The discharge current will be limited to zero Amps when the single module voltage has been discharged to 50.4V.
3. The battery system will communicate with the inverter to limit the current.
4. Each Battery Module will be protected by the same logic separately as per single module protection concept.
5. If some modules, individually, reach any fault status, the single module will protect and disconnect from
the system in less than 3 seconds.
6. The current limit must be adjusted according to the real active batteries in system to restore the normal function.
7. If the cluster is not balanced, the current limitation set from the HUB to the inverter will be sent to manage
the rest of active modules and clusters. At the same time, the imbalanced modules or cluster will equalize
in standby mode and will reconnect once in the normal range.
8. If more than two batteries in one cluster are in protection mode, the entire cluster will protect by shutting down.
9. If there are more than two clusters in protection mode, the full system will be protected.
10. The battery sends information to the inverter to limit the charge/discharge current to zero Amps if the
battery is detecting an over current.
11. The protection built into the BMS will automatically disconnect the battery when it detects excess values.
The BMS will attempt to reconnect up to three times to check if the excess values have returned to within
the permitted range. After three attempts to reconnect, the BMS will not attempt any further
reconnections. The Battery Module can be restarted using the module power switch and run button,
however, if the external fault condition which caused the Battery Module to shut down is not rectified, the
battery will continue to enter the shutdown mode.
12. If the current of one cluster is larger than the current limit, the battery system will send a warning in
accordance with the single module BMS logic.
Modules Clusters 1234567
1100 196 288 376 460 540 616
2196 376 540 688 820 936 1036
3288 540 756 936 1080 1188 1260
4376 688 936 1120 1240 1296 1400
5460 820 1080 1240 1300 1500 1750
6540 936 1188 1296 1500 1800 2100
7616 1036 1260 1400 1750 2100 2450
8688 1120 1296 1600 2000 2400 2800
9756 1188 1350 1800 2250 2700 3150
10 820 1240 1500 2000 2500 3000 3500
11 880 1276 1650 2200 2750 3300 3850
12 936 1296 1800 2400 3000 3600 4200
13 988 1300 1950 2600 3250 3900 4550
14 1036 1400 2100 2800 3500 4200 4900
15 1080 1500 2250 3000 3750 4500 5250
