Chapter 3 Commissioning 17
NetSure 731 A41 Subrack Power System User Manual
The User and password of the M830B controller is set by web, see
NetSure™ Control Unit (NCU) User Manual Tabe 3-3 M830B
controller paremeter settings
Parameter
Path
Default settings
Rated Capacity
LCD/ Settings
Batt Settings
Charge
Batt1 Settings
Rated Capacity
300Ah
LVD1
LCD/ Settings
—LVD Settings—LVD1
Enabled
LVD2
LCD/ Settings
—LVD Settings—LVD2
Enabled
LVD1 Voltage
LCD/ Settings
—LVD Settings—LVD1Voltage
44.0V
LVD2 Voltage
LCD/ Settings
—LVD Settings—LVD2Voltage
43.2V
AC Fail Required
Web/Settings
—System—LVDGroup—AC Fail Required
Enabled
Num Batt Shunts
LCD/ Settings
—Batt Settings—Basic Settings—Num
Batt Shunts
1
Shunt Current/ Shunt Voltage
LCD/ Settings
—Batt Settings—Basic Settings—Batt1
Settings
—Shunt Current/Shunt Voltage
300A/25mV
LVD Contactor Type
Web /Settings
—LVD—LVD Contactor Type
Bistable
Walk-In
LCD/ Settings
—Rect Settings—Walk-In
Enabled
Walk-In Time
LCD/ Settings
—Rect Settings—Walk-In Time
128S
Note: The LVD2 voltage settings should follow battery factory's requirement and the battery capacity settings should
based on the actual configuration settings.
3.3 Alarm Check And System Operation Status Check
Alarm check
Check that all functional unit can trigger alarms that can be displayed on the controller.
OK
Comment
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
Switch off battery MCB 1. The ‘Batt1 Failure’ alarm should be triggered. Switch 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 Fuse N 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 MCBs. Keep only one rectifier in operation. Through the controller module, 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 module the battery management parameter to
‘Manual’. Enter the maintenance menu at the controller module. Select ‘Disconnect’ and confirm it. The
battery protection contactor should be open, and the ‘BLVD’ alarm should be displayed at the controller
module
Note: when the preceding alarms are generated, the controller module will give alarms after approximately
3s.
System operation status check
There should be no alarms during normal system operation. The system operation status can be conducted through
the controller module.
OK
Comments
The system model is correct.
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 busbar should be less than 1
％
The controller should diaplay 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 parameter.
For the system configured with temperature sensor, the controller should be able to diaplay the battery
