Narada NPFC Series Operation Manual page 37

Part 5 Part 5 Troubleshooting & Solutions Troubleshooting & Solutions
– –
Troubles Troubles
Protecti Protection on against against under-voltage
Protection Protection
under-temperature (Ambient temperature is lower under-temperature (Ambient temperature is lower
than -25 ℃ ℃ or higher
than -25
Battery Battery
cannot cannot Battery output Battery output is is short
discharge discharge
Protection against overcurre Protection against
System failure System failure
Battery Battery is is fully fully charged.
Protecti Protection on against against overvoltage
Protection Protection
Battery Battery
under-temperature (Ambient temperature is lower under-temperature (Ambient temperature is lower
cannot charge cannot charge
than -10 ℃ ℃ or higher
than -10
System failure System failure
All All LED LED
System failure System failure
indicators on indicators on
Fault of of communication Fault communication cable
Communicati Communicati Halt of of SCM Halt SCM
on failure on failure
System failure System failure
Different flash status of LED indicators represents corresponding running status or alarms. Different flash status of LED indicators represents corresponding running status or alarms.
Detailed information is shown Annex 1. Detailed information is shown Annex 1.
LiFePO LiFePO
– –
Table 6.1 Table 6.1 Troubleshooting and Solutions Troubleshooting and Solutions
Troubleshooting Troubleshooting
under-voltage
against against over-temperature over-temperature
than 75 ℃ ℃ ) )
or higher than 75
short circuit circuit
overcurrent nt
charged. Normal Normal charge charge management management
overvoltage
against against over-temperature over-temperature
than 65 ℃ ℃ ) )
or higher than 65
cable
Battery Battery Module Module for for Telecom Telecom
4 4
– –
Part 5 Part 5 Troubleshooting & & Solutions Troubleshooting
Solutions Solutions
Charge battery Charge battery
or or
Regulate ambient temperature in the Regulate ambient temperature in the
range of -20 ℃ ℃ to to 60 60 ℃ ℃ for
range of -20
Relieve short Relieve short circuit circuit and
Remove some unimportant load and Remove some unimportant load and
charge battery charge battery
Shutdown system and call maintenance Shutdown system and call maintenance
service service
Do not Do not need need to to solve solve
Do Do not not need need to to solve solve
or or
Regulate ambient temperature in the Regulate ambient temperature in the
range of 0 ℃ ℃ to to 55 55 ℃ ℃ for
range of 0
Shutdown system and call maintenance Shutdown system and call maintenance
service service
Shutdown system Shutdown system
Call for maintenance service Call for maintenance service
Inspect communication Inspect communication cable
Press Press RESET RESET button button
Shutdown system Shutdown system
Call for maintenance service Call for maintenance service
Operation Operation Manual Manual
Solutions 17 17
for discharge discharge
and charge charge battery battery
for charge charge
cable