GCE 24V 300Amp high-power BMS for forklift
GCE forklift BMS features:
BMS components are composed of BMS (sampling control board),
switching power supply, Hall
sensor, pre-charging resistor, fuse, pre-charging contactor,
discharge contactor, box body, wiring
harness and other components;
| 1 | Support battery voltage: 24V (8 strings), 48V (15 strings) |
| 2 | 2 temperature acquisition probes |
| 3 | The current collection adopts Hall sensor, which is safe and
reliable without heating; |
| 4 | SOC estimation error ≤5%; |
| 5 | 2 road CAN communication, 1 road RS485 communication; |
| 6 | LED signal indicates working status (4-bit SOC indicator); |
| 7 | 8-digit dial code; |
| 8 | 3-road relay dry contact output; |
| 9 | 1-road external auxiliary signal detection; |
| 10 | Provide host computer software to facilitate customers to debug the
battery system, and the
system parameters can also be modified through the host computer; |
| 11 | Support temperature module expansion; |
| 12 | Support Bluetooth, GPRS, and external serial port display expansion
(select one of the three for
extended functions); |
| 13 | 300A discharge contactor; |
| 14 | Support online upgrade via RS485; |
.GCE forklift BMS Technical Data Sheet:
| Item | Specifications and Parameters |
| system voltage range | 24V(18 - 36VDC) 48V(36 - 72VDC) |
| Starting Mode | External key start |
| Number of battery strings | 24V(8S) 48V(15S) |
| Balance | Balance type | passive |
| Balance current | 100mA ± 10mA |
| Temp sampling | temp sensors | 2 batteries temperatures |
| Sampling accuracy | ± 2℃ |
| Voltage sampling | Sampling accuracy | ±20mV |
| Single cell±20mV |
| SOC estimation error | ≤5% |
| communication method | CAN : 2road |
| RS485 : 1 road |
| Display method | 4 LED indicators |
| HMI display: optional |
| Hall sensor specifications | According to customer needs |
| Maximum load of power unit | Steady state:300A |
| Transient state:350A/10S |
| (According to customer needs) |
| Warning level | Level 1 |
| Protection level | Level 2: |
| Level 1 cut off charge/discharge |
| Level 2 Power off the system |
GCE forklift BMS pictures:
GCE BMS working status description:
Put the BMS in the shutdown state and complete the connection with
the BMS. After the BMS is assembled, press the battery input
self-locking switch, and then press the close key. The BMS enters
the self-check. If the self-check is normal, the contactor can be
heard Beeps, start-up is complete.
After the system is started and the booting is completed normally,
bounce all the self-locking switches and cut off the key switch to
make the BMS enter the shutdown/transport state. If the BMS is not
used for a long time, the BMS must be in this state.
After the BMS is started, the power supply of the BMS is detected
and it starts to work normally.
The system does not sleep by default. When the key remains closed
after the battery is under-voltage, the system uses a low-power
power module to work and enter a low-power state.
BMS uses the resistance side-by-circuit method to balance the
cells. The cell voltage of the battery pack reaches 3.5V and the
cell voltage is 50mV higher than the minimum cell voltage, or the
cell voltage exceeds 3.65V, the cell balancing function will be
activated; enter the protection state When (except for overcharge
and full charge status), the equalization stops.
Note: The voltage balance can be set.
