Vertiv NetSure 531 A91 User Manual

Chapter 3 Commissioning 15
NetSure 531 A41, NetSure 531 A91 Subrack Power system User Manual
3.2 Basic Settings
When the system is put into service for the first time, the parameters of controller must be set based on the actual
system configuration, such as battery number, capacity, user’s charge current limit and other functional requirements.
Only after that can the controller display system operation information and control the output.
(The password of the M221S, M222S controller is: 2; the M820B controller is: 1 ;The User and password of the
M830B controller is set by web, see NetSure™ Control Unit (NCU) User Manual, UMM830B (Issue AA, June 3,
2014))
OK
Comments
The system model has been set correctly in factory before delivery, check that the setting agrees with the
actual system:
(The path to check and set of the M221S, M222S controller: SettingsBat. SettingsBasic Settings）
(The path to check and set of the M820B controller: SettingsBattery Battery 1Shunt Current/Shunt
Voltage）
(The path to check and set of the M830B controller: SettingsBatt Settings Batt 1Shunt Current/Shunt
Voltage）NetSure 531 A41-S1～S2: 48V/SET; Set the battery shunt coefficient for: 175A/25mV；
NetSure 531 A41-S3: 48V/SET; Set the battery shunt coefficient for: 175A/25mV；
NetSure 531 A91-S1: 48V/SET; Set the battery shunt coefficient for: 300A/25mV

The DC over-voltage alarm point has been set correctly in factory before delivery, check that the setting
agrees with the actual system:
Set DC over-voltage alarm: 58V
(The path to check and set of the M221S, M222S controller: SettingsDC SettingsOverVolt)
(The path to check and set of the M820B controller: SettingsPower SystemGeneralOver Voltage) (The
path to check and set of the M830B controller: Login the web page to set)

Check that the alarm mode is set to “High”

The battery string number set at the controller should be the same as the number actually connected. (By
default: 2)
(The path to check and set of the M221S, M222S controller: Settings Bat. SettingsBasic SettingsBat.
Fuse)
(The path to check and set of the M820B controller: Settings BatteryBasicNum Batt Shunts)
(The path to check and set of the M830B controller: Settings Batt Settings Basic Settings Num Batt
Shunts)

Set the battery capacity according to the actual capacity of the battery connected to the system.
Default: 300Ah
(The path to check and set of the M221S, M222S controller: Settings Bat. SettingsBasic
SettingsCapacity)
(The path to check and set of the M820B controller: Settings Battery Battery 1Rated Capacity)
(The path to check and set of the M820B controller: Settings Battery Battery 1Rated Capacity)

Set the charge current limit according to your needs. Setting range: 0.1~0.25C10. (By default: 0.1C10) (The
path to check and set of the M221S, M222S controller: Settings Bat. SettingsCharge)
(The path to check and set of the M820B controller: Settings BatteryCharge)
(The path to check and set of the M830B controller: SettingsBatt SettingsTemp Comp)

Set the controller according to the voltage suggested by the battery supplier.
Floating Charge (FC) voltage range: 42V ~ Boost Charge (BC) voltage. Default: 53.5V.
BC voltage range: FC voltage ~ 58V. By default: 56.4V.
(The path to check and set of the M221S, M222S controller: Settings Bat. SettingsCharge)
(The path to check and set of the M820B controller: Settings BatteryChargeFloat Voltage/EQ Voltage)
(The path to check and set of the M830B controller: Settings Batt SettingsChargeFloat Voltage/EQ
Voltage)
For batteries that do not need BC, set the BC voltage to FC voltage plus 0.1V

Put through the battery MCBs and connect the batteries


Vertiv NetSure 531 A91 Specifications

General

Brand	Vertiv
Model	NetSure 531 A91
Category	Power Supply
Language	English