Chapter 7 Maintenance 45
NetSure 801 AG1 Power Supply System User Manual
shall be recorded once about every 2 hours, including the voltage and current of each phase of the power grid, the
start and recovery time of mains failure, and the startup time and break time of the generator, etc.
3. Streamlined logs of the DC power supply status. The requirements for the streamlined logs of the DC power supply
status are similar to those for the streamlined logs of the AC power supply status. Log items include DC output
voltage, current of main loads, charge/discharge voltage and current, total load current, etc.
4. Faults maintenance. Overhaul and maintenance of other equipment shall be conducted in accordance with the
requirements and methods provided by the manufacturer. But, during the routine maintenance, be sure to write down
the fault causes and the maintenance results in the “equipment calendar”. An equipment calendar shall be kept for
each piece of equipment in the equipment room.
7.4 Basic Inspection
7.4.1 Handling Monitoring Module Fault
When the faults of the controller affect the DC power supply, turn off the controller.
7.4.2 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 7-1.
Power indicator
Protection indicator
Fault indicator
Figure 7-1 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 7-7 to dispose the faults.
Table 7-7 Disposal methods for rectifier faults
Fault
Related alarm
Fault cause
Proposal
Power indicator off
(green)
No alarm
No input and 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
