Vertiv™ NetSure™ Control Unit (NCU) User Manual
• Rects ON Time: Time all rectifiers are turned on at the end of the “Cycle Period”.
4.1.3 Alarm Settings Sub-Menu
• Audible Alarm: Programs the audible alarm feature.
- Off: Disables the audible alarm.
- On: When a new alarm occurs, the audible alarm sounds. Press any key to silence the audible alarm.
- 3 min / 10 min / 1 hr / 4 hrs: When a new alarm occurs, the audible alarm sounds. The audible alarm automatically
silences after the selected time period.
• Alarm Blocked:
- Normal: Alarms are processed normally.
- Blocked: Forces the alarm relays in the "off" state and blocks alarms from changing the relay state.
• ClrRectCommFail: Clears a rectifier communication fail alarm.
• ClrRectLost: Clears a rectifier lost alarm.
• Rst RectGrpLost: Resets rectifier group lost alarms.
• Clr Bad Bat Alm: Clears a bad battery alarm.
• ClrBatTestFail: Clears a battery test fail alarm.
• ClrCycleAlm: Clears a rectifier oscillator alarm.
• Clr AbnlCur Alm: Clears an abnormal current alarm.
• Clr Cur Imb Alm: Clears a current imbalance alarm.
• ClrAllConvCommF: Clears an “All Converter Comm Fail” alarm.
• ClrConvComm Fail: Clears a converter communication fail alarm.
• Clear Conv Lost: Clears a converter lost alarm.
• ClearSolarLost: Clears a solar converter lost alarm.
• ClrSolarComm Fail: Clears a solar converter communication fail alarm.
4.1.4 Rect Settings Sub-Menu
• Current Limit: Enables or disables adjusting the output current limit point.
NOTE!
By default this is set to disabled. When disabled, rectifier current limit is set in the rectifier (not via the NCU) at the
maximum current limit point.
• Curr Limit Pt: Sets the output current limit point for all rectifiers combined when the “Current Limit” setting above is set to
enabled.
• Walk-In: Enables or disables the start-up walk-in feature for all rectifiers.
• Walk-In Time: Sets the start-up walk-in time when the “Walk-In” setting above is set to enabled.
• Start Interval: Sets the sequence start interval (time period between starting each rectifier in the system).
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