Vertiv™ NetSure™ Control Unit (NCU) User Manual
• Short Test: Enables or disables a Short Battery Discharge Test. A Short Battery Discharge Test is a short duration battery
discharge test used to verify that parallel batteries are discharging equally. If the discharge current difference between the
two batteries exceeds a preset value, an alarm is generated. When enabled, the following parameters can be set.
NOTE!
This test requires a system with two battery shunts.
Short Test Cycle: Short Battery Discharge Test interval (days).
Short Test Time: Short Battery Discharge Test time (minutes).
Short Test Max Difference Current: An alarm is generated if the maximum difference between discharge currents of the
two batteries exceeds this limit.
• Test Voltage Level: System output voltage setting during a battery discharge test.
• End Test Voltage: This is the "end of test voltage level" for battery discharge tests. A battery discharge test will end if
battery voltage decreases to this setting.
• End Test Time: This is the "end of test time period” for battery discharge tests. A battery discharge test will end if this time
period is exceeded.
• End Test Capacity: This is the "end of test remaining battery capacity" for battery discharge tests. A battery discharge test
will end if remaining battery capacity decreases to this setting. For example, a value of 0.700C10 means that when the
discharging current reaches 70% of the battery's nominal capacity, the battery test is ended.
• Record Threshold: Every time the battery voltage is changed more than this threshold, a new line is stored in the battery
test log.
• Number of Planned Tests per Year: Number of planned battery discharge test per year. There can be up to twelve (12)
battery discharge tests per year. A "0" setting disables the planned test feature. When enabled, the following parameters can
be set.
Planned Test # (MM-DD Hr): Setting for when planned battery discharge test # occurs. Note that there can be up to
twelve (12) battery discharge tests per year.
• Clear Bad Battery Alarm: Clears a bad battery alarm. The only selection is Yes. Once Yes is selected and confirmed, the
alarm clears.
• Clear Battery Test Fail Alarm: Clears a battery test fail alarm. The only selection is Yes. Once Yes is selected and
confirmed, the alarm clears.
• Clear Discharge Curr Imbalance: Clears a discharge current imbalance alarm. The only selection is Yes. Once Yes is
selected and confirmed, the alarm clears.
Time Settings Tab Programmable Parameter Descriptions
See also “Changing the Date and Time” on page 32.
• Specify Time
- Get Local Time from Connected PC: Allows you to automatically set the time. When selected, the controller will get
the same time as the connected PC.
- Date & Time: Allows you to manually set the date and time.
• Local Zone (for synchronization with time servers): When selected, the controller will get the local zone automatically or
you can enter the zone.
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