than 48V, it must to be charged according to the charging strategy.
The charging strategy is as follows: discharge the battery to the cutoff voltage with 0.2C
10
A
current, and then charge with 0.2C
10
A current for about 3 hours. Keep the SOC of the battery
at 40-70% when stored;
When the battery product is stored, the source of ignition or high temperature should be
avoided and it should be kept away from explosive and flammable areas.
8. Troubleshooting
To determine the status of the battery system, users must use additional battery status monitoring
software to examine the protection mode. Refer to the installation manual about using the monitoring
software.
Once the user knows the protection mode, refer to the following sections for solutions.
Table 8-1: Troubleshooting
Fault Type
Fault Generation
condition
Possible Causes
Troubleshooting
BMS fault
1.
The cell
voltage sampling
circuit is faulty.
2.
The cell
temperature
sampling circuit
is faulty
1.
The welding point for cell
voltage sampling is loose
or
disconnected.
2.
The voltage sampling terminal
is disconnected.
3.
The fuse in the voltage
sampling circuit is blown.
4.
The cell temperature sensor
has failed.
Replace the battery.
Electrochemical
cell fault
The voltage of
the cell is low or
unbalanced.
1.
Due
to
large
self-
discharge, the cell over
dis-
charges to below 2.0 V after long-
term storage.
2.
The cell is damaged by external
factors,
and
short
circuits,
pinpricks, or crushing
occur.
Replace the battery.
Overvoltage
protection
1.
The cell
voltage is greater
1.
The busbar input
voltage
exceeds the normal value.
If the battery can- not be
recovered
due
to
Summary of Contents for SSIF2P15S48100C
Page 1: ...LITHIUM BATTERY Application Manual...
Page 28: ...www fns power com...
Page 39: ......
Page 56: ......