Vertiv | +24 VDC Power System User Manual (Section 6013) | Rev. G
Viewing Inventory Items
Procedure
1. With "SYSTEM OK" being displayed on the MCA Interface Pad, press and release the FUNCTION SET
ENTER pushbutton.
or
With "## ALARMS ACTIVE" being displayed on the MCA Interface Pad, press and release the
FUNCTION SET ENTER pushbutton. Repeatedly press and release the FUNCTION SELECT DOWN
arrow pushbutton until "FUNCTION MENU" is displayed. Press and release the FUNCTION SET ENTER
pushbutton.
2. Repeatedly press and release the FUNCTION SELECT DOWN arrow pushbutton until "CONFIGURE
MENU" is displayed.
3. Press and release the FUNCTION SET ENTER pushbutton.
4. "VERIFY INVENTORY" is displayed. Press and release the FUNCTION SET ENTER pushbutton.
5. Press and release the FUNCTION SELECT DOWN and UP arrow pushbuttons to view the various
inventory items.
6. To return to the beginning of the MCA Logic Tree, press and release the FUNCTION SET YES (+) and
NO (-) pushbuttons simultaneously.
MCA "Power Down" Mode
The MCA turns off its display and Rectifier Module communications to conserve power when system voltage
falls below 40 volts in 48V systems, or 20 volts in 24V systems. Full operation is restored when system voltage
recovers to above 47 volts in 48V systems, or 23.5 volts in 24V systems.
To temporarily view system parameters when the MCA is in the "Power Down" mode, press any keypad button.
This reactivates the display and communications.
The MCA resumes "Power Down" mode after the MCA is returned to the "Normal Display" position (beginning of
MCA Menu Tree).
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