Vertiv
|
+24 VDC Power System User Manual (Section 6013)
|
Rev. G
91
Adjusting the Reconnect Value for All Low Voltage Disconnect Circuits Installed
Local MCA Control Panel Adjustment Procedure
1.
All controls are located on the MCA Interface Pad. Refer to
2.
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.
3.
Repeatedly press and release the FUNCTION SELECT DOWN arrow pushbutton until "ADJUSTMENT
MENU" is displayed.
4.
Press and release the FUNCTION SET ENTER pushbutton.
5.
Repeatedly press and release the FUNCTION SELECT DOWN arrow pushbutton until "ADJUST LVD" is
displayed.
6.
Press and release the FUNCTION SET ENTER pushbutton.
7.
Repeatedly press and release the FUNCTION SELECT DOWN arrow pushbutton until "LVRECON =
##.##V" or "MANUAL RECONNECT" is displayed.
8.
Press and release the ALARM CUTOFF and FUNCTION SET ENTER pushbuttons simultaneously. The
"LVRECON =" portion of the display flashes.
9.
Observe the value displayed. This is the reconnect setting for all low voltage disconnect circuits
installed. To change this value, press and hold the FUNCTION SET YES (+) or NO (-) pushbutton.
Release the pushbutton when the desired value is displayed.
NOTE!
The reconnect setting is prevented from being adjusted less than 0.5V above the highest of the
disconnect values.
If you attempt to do this, a WARNING message is displayed.
NOTE!
For manual reconnect, select "MANUAL RECONNECT". For automatic reconnect, select a value.
10.
With the desired reconnect value being displayed, press and release the FUNCTION SET ENTER
pushbutton.
11.
“ARE YOU SURE? + -” is displayed. Press and release the FUNCTION SET YES (+) pushbutton. The
display stops flashing.
NOTE!
The reconnect value will not be changed and the adjustment mode will be exited if the
FUNCTION SET YES (+) pushbutton is not pressed within 10 seconds of the “ARE YOU SURE? +
-”
prompt.
12.
Press and release the FUNCTION SET YES (+) and NO (-) pushbuttons simultaneously, to return to the
beginning of the MCA menu tree.