SDS

NIU-48N7A0
（
K14875
）
Specification
Security Level
Internal public
File No.
PGG003436
Version
V1.6
All content in this article is confidential information of SCUD. Page
6
of Total
17
Do not distribute without permission.
4.2 BMS Protection parameters
Table 4.2 BMS parameters
Item
Unit
Min.
Typ.
Max.
Remark
About
voltage
1st Overvoltage
alarm
Alarm voltage
V
4.22
4.23
4.24
Voltage drop or
discharge
release
Delay time
s
1
2
3
Release voltage
V
4.05
4.1
4.15
1st Overvoltage
protection
Protection voltage
V
4.225
4.25
4.275
Voltage drop or
discharge
release
Delay time
s
1
2
3
Release voltage
V
4.05
4.1
4.15
2nd Overvoltage
protection
Protection voltage
V
4.32
4.35
4.38
Fuse SCP
Delay time
s
3.2
4
4.8
Release voltage
V
Unrecoverable
1st Undervoltage
alarm
Alarm voltage
V
3.10
3.2
3.30
Charging or
voltage
＞
3.3V
Delay time
s
2
3
5
Release voltage
V
3.2
3.3
3.4
1st Undervoltage
protection
（AVG）
Protection voltage
V
2.90
3
3.10
Charging or
voltage＞3.3V
Delay time
s
4
5
8
Release voltage
V
3.20
3.3
3.40
Prohibit
charging
Protection voltage
V
1.4
1.5
1.6
Cell voltage＜
1.5V
Delay time
s
7
8
9
Release voltage
V
Unrecoverable
Cells imbalance
alarm
Alarm voltage
V
Cells imbalance＞0.3V
Cells voltage
（
Min
）＞
3.3V
Delay time
s
28
30
32
Release voltage
V
Cells imbalance＜0.3V
Cells imbalance
protection
Protection voltage
V
Cells imbalance＞0.5V
Cells voltage
（
Min
）＞
3.0V
Delay time
s
58
60
62
Release voltage
V
Unrecoverable
About
current
Charge
overcurrent
alarm
Alarm current
A
4.7
5
5.3
Delay time
s
7
10
13
Recovery
s
Delay 30s or discharge
Charge
overcurrent
protection
Protection current
A
4.7
5
5.3
Delay time
s
12
15
18
Recovery
s
Delay 30s or discharge
Discharge
overcurrent
alarm
Alarm current
A
23
25
27
The recovery
method after
triggering
Delay time
s
1
2
3
Recovery
s
Delay 30s or charge