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Vertiv
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+24 VDC Power System User Manual (Section 6013)
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Rev. G
54
Returning to Float Mode: To return to float mode, navigate to and activate the "SET FLOAT MODE" menu
item in the MCA function menu, as previously described in this section.
Method 2 (Manually Initiated Timed Test/Equalize) Procedure
In this method, a user manually places the system into the test/equalize mode via the MCA interface. The
system automatically returns to the float mode after a preset programmable time period (1-99 hours, in
increments of one hour). To invoke method 2, follow the procedures described below.
Setting for Manually Initiated Timed Test/Equalize: Set the "TEST/EQ HRS = ##" menu item in the MCA
configure menu to a value between 1 and 99. A step-by-step procedure is provided next.
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.
Repeatedly press and release the FUNCTION SELECT DOWN arrow pushbutton until "TEST/EQ HRS =
##" or "TEST/EQ MAN STOP" is displayed.
NOTE!
If "TEST/EQ HRS = ##" is displayed, the system is already set for manually initiated timed
test/equalize. In this case, you can proceed with steps 5) through 8) to change the current setting, or
proceed with step 9) if no changes are required.
NOTE!
If "END TEQ ##.##HRS" is displayed, the system is already set for manually initiated timed
test/equalize, and a timed test/equalize is in progress. In this case, you can proceed with steps 5)
through 8) to cancel the timed test/equalize in progress and change the current setting, or proceed with
step 9) to proceed with the timed test/equalize in progress and make no changes.
5.
Press and release the ALARM CUTOFF and FUNCTION SET ENTER pushbuttons simultaneously. The
"TEST/EQ HRS =" portion of the display flashes.
6.
Press the FUNCTION SET YES (+) or FUNCTION SET NO (-) pushbutton until the desired value is
displayed, then release the pushbutton. Note that as you scroll above 99, "TEST/EQ MAN STOP" is
displayed. Scroll back down to redisplay "TEST/EQ HRS =".
7.
Press and release the ALARM CUTOFF and FUNCTION SET ENTER pushbuttons simultaneously.
8.
“ARE YOU SURE? + -” is displayed. Press and release the FUNCTION SET YES (+) pushbutton.
9.
Press and release the FUNCTION SET YES (+) and NO (-) pushbuttons simultaneously, to return to the
beginning of the MCA menu tree.
Placing the System into Test/Equalize Mode: Manually place the system into test/equalize mode by
navigating to and activating the "SET TEST/EQ MODE" menu item in the MCA function menu. The system is