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+24 VDC Power System User Manual (Section 6013)
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Rev. G
78
Adjusting High Voltage Shutdown
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.
"ADJUST SYSTEM" is displayed.
6.
Press and release the FUNCTION SET ENTER pushbutton.
7.
Repeatedly press and release the FUNCTION SELECT DOWN arrow pushbutton until "SET HVS =
##.##V" is displayed.
8.
Press and release the ALARM CUTOFF and FUNCTION SET ENTER pushbuttons simultaneously. The
"SET HVS =" portion of the display flashes.
9.
Observe the value displayed. This is the high voltage shutdown setting for all Rectifier Modules. 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 system will not allow a value higher than 29.75 to be entered. Also, the high voltage
shutdown value is prevented from being adjusted lower than 0.5V above the higher of the float or
test/equalize setting. When used with a Battery Charge Digital Temperature Compensation Probe, high
voltage shutdown is prevented from being adjusted lower than 0.5V above the Maximum Voltage with
Temperature Compensation setting.
The MCA is used in various applications, high voltage shutdown cannot be adjusted beyond the limits of
the Rectifier Module.
10.
With the desired high voltage shutdown 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 high voltage shutdown 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.