16 Chapter 3 Commissioning
NetSure 531 A41, NetSure 531 A91 Subrack Power system User Manual
Set the charge current limit according to your needs. Setting range: 0.1 C
10
~0.25C
10
. (By default: 0.1C10)
(The path to check and set of the M221S, M222S controller: Settings Bat. SettingsCharge)
(The path to check and set of the M820B controller: Settings BatteryCharge)
(The path to check and set of the M830B controller: Settings Batt SettingsChargeBatt Curr Limit)
3.3 Alarm Check And System Operation Status Check
Alarm check
Check that all functional units can trigger alarms that can be displayed on the controller.
Pull out one rectifier. The “Rect N Com Failure” alarm should be triggered. Insert the rectifier in. The
alarm should disappear. Repeat the same procedures on other rectifiers.
Remove battery MCB 1. The “Batt1 Failure” alarm should be triggered. Put on the MCB. The alarm
should be cleared. Repeat the same on battery MCB 2.
Switch off a load MCB connected to a load route. The alarm “Load 1 Failure” should be triggered.
Switch on the MCB, and the alarm should be cleared. Repeat the same on the other load MCBs.
Remove all the battery input MCBs. Keep only one rectifier in operation. Through the controller, adjust
the rectifier FC voltage to make it lower than the alarm point. The alarm “DC Voltage Low” should be
triggered.
Keep the rectifiers in operation. Set through the controller the battery management parameter to
“Manual”. Enter the maintenance menu at the controller. Select “Disconnect” and confirm it. The
battery protection contactor should be open, and the “BLVD” alarm should be displayed at the
controller.
Note: when the preceding alarms are generated, the controller will give alarms after approximately 3s.
System operation status check
There should be no alarms during normal system operation. The system operation status check can be conducted
through the controller.
Check that the system type agrees with the actual system when the system operates
The controller should display the correct AC voltage.
The controller should be able to display the DC voltage. The difference between the displayed voltage
and that measured at the bus bar should be less than 1%.
The controller should display the battery current. The difference between the displayed and measured
battery current should be less than 1%.
Check the number of the rectifier through the controller. The number should be consistent with the
actual number.
Check the voltage, current, current limiting point of rectifiers through the controller. They should agree
with the actual parameters.
For the system configured with temperature sensor, the controller should be able to display the battery
ambient temperature. Hold the probe of the temperature sensor with hand and watch the controller,
which should diplay the change of temperature.
Disconnect all test equipment from the system and make sure that materials irrelevant to the
equipment have been all removed.
Restore the equipment to its original condition and close the subrack door.
Check and handover the equipment that the user has purchased.
Note down all the operations taken, including time of the operation and name of the operator.
If any defect is found in this equipment, inform the personnel responsible for the contract.
If repairing is needed, please fill in the FAILURE REPORT and send the report together with the defective unit to the
repairing center for fault analysis.
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