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+24 VDC Power System User Manual (Section 6013)
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Rev. G
55
placed in the test/equalize mode for the time period set in "TEST/EQ HRS = ##". The system automatically
returns to the float mode when this time period expires. 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.
NOTE!
In the following step, if "SET FLOAT MODE" is displayed, the system is already operating in the
test/equalize mode. In this case, DO NOT perform steps 2) through 4), proceed with step 5).
2.
Press and release the FUNCTION SELECT DOWN arrow pushbutton to display "SET TEST/EQ MODE".
3.
Press and release the ALARM CUTOFF and FUNCTION SET ENTER pushbuttons simultaneously.
4.
"ARE YOU SURE? + -" is displayed. Press and release the FUNCTION SET YES (+) pushbutton.
5.
Press and release the FUNCTION SET YES (+) and NO (-) pushbuttons simultaneously, to return to the
beginning of the MCA menu tree.
Returning to Float Mode: The system automatically returns to float mode when the "timed test/equalize
period" expires.
NOTE!
Navigating to "END TEQ ##.##" of the MCA configure menu displays the hours remaining in the
timed test/equalize period.
NOTE!
Timed test/equalize is canceled and the system is placed in the float mode if any of the following
occurs.
1) Manually placing the system in the float mode by navigating to and activating "SET FLOAT MODE"
menu item in the MCA function menu, as previously described in this section.
2) Resetting the "TEST/EQ HRS = ##" value in the MCA configure menu when "END TEQ ##.##HRS"
is being displayed, as described in the previous procedure
3) Applying an external test/equalize signal as described in the next procedure.
Method 3 (Automatic Test/Equalize) Procedure
In this method, a user enables the Automatic Equalize feature via the MCA interface. The system is
automatically placed in the equalize mode and automatically returns to float mode for the conditions as
described below. To invoke method 3, follow the procedures described below.
NOTE!
The automatic equalize feature is intended for use only with wet cell batteries. Using this
feature with valve regulated batteries is not recommended.
Description
This feature can be enabled or disabled by a user via the MCA. The default state is disabled.