78 Chapter 6 Maintenance
NetSure 801 CA7 Power Supply System (New Skelecton) User Manual
6.4.2 Handling Rectifier Fault
Note
If a rectifier is pulled out or there is faulty rectifier, users should reset the controller. Or else the batteries cannot be boost
charged.
Fault phenomenon and handling method
Rectifier faults include power indicator off (green), protection indicator on (yellow), protection indicator flashing
(yellow), fault indicator on (red) and fault indicator flashing (red).
The indicators positions are shown in Figure 6-1.
Power indicator
Protection indicator
Fault indicator
Figure 6-1 Rectifier indicator position
Change the position of the abnormal and normal rectifiers upon abnormity. If the abnormal rectifier still cannot work
normally, refer to Table 6-7 to dispose the faults.
Table 6-7 Disposal methods for rectifier faults
Fault
Related alarm
Fault cause
Proposal
Power indicator off
(green)
No alarm
No input or output voltage
Ensure having input and output voltage
Protection indicator on
(yellow)
Rectifier over
temperature
Main
causes of
overheat
protection
for
rectifier
Fan is blocked
Remove the object which blocks the
fan operation
The vent duct is expedite: there
are some blockages at air intake
or air outlet
Remove the blockage at air intake and
air outlet
High temperature or pyrotoxin is
near to the air intake of rectifier
Decrease ambient temperature or
remove the pyrotoxin
The rectifier isn
’t absolutely
inserted into the frame
Reinsert rectifier
Rectifier
protection
No current sharing
Check the rectifier communication
whether nomal or not. If not, continue
to check the connection of
communication lines. Replace the fault
rectifier when it works normally
PFC output overvoltage protection
Change the position of the abnormal
and normal rectifiers. Replace the
abnormal rectifier if it cannot work
normally all the same
AC input voltage exceeding the normal range
Ensure the AC input voltage whether in
normal range or not
Protection indicator
flashing (yellow)
Rectifier
communication
failure
Rectifier communication failure
Check the communication lines
connection whether well or not
Fault indicator on (red)
Rectifier failure Overvoltage
Remove the abnormal rectifier and
restart. Replace the rectifier if it occurs
overvoltage again
Fault indicator flashing
(red)
Rectifier fan
fault
Fan fault
Replace new fan