Application Guide

User Instructions Section 5877
Spec. No. 582140000 (Models 802NLDB, 802NLEB and 802NL-B) Issue AQ, January 15, 2013
Chapter 4. MCA System Adjustments Page 4-3
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ADJUSTING FLOAT OUTPUT VOLTAGE
1) All controls are located on the MCA Interface Pad.
2) With SYSTEM OK being displayed on the MCA Interface Pad, press and release
the FUNCTION SET ENTER key. The FUNCTION MENU is displayed.
or
In the MAIN ALARM MENU, repeatedly press and release the FUNCTION
SELECT DOWN arrow key until "GO TO FUNCTION MENU" is displayed. Press
and release the FUNCTION SET ENTER key. The FUNCTION MENU is
displayed.
3) Repeatedly press and release the FUNCTION SELECT DOWN arrow key until
"ADJUST THE SYSTEM VOLTS & AMPS" is displayed.
4) Press and release the FUNCTION SET ENTER key. "FLOAT SETPOINT =
vv.vvV" is displayed.
5) Press and release the ALARM CUTOFF and FUNCTION SET ENTER keys
simultaneously.
6) Observe the value displayed. This is the float voltage setting for all Rectifiers. If
the system is used with a battery charge digital temperature compensation
probe, this value is the float voltage setting at 25°C. To change this value, press
and hold the FUNCTION SET YES (+) or NO (-) key. Release the key when the
desired value is displayed.
Note: The float voltage value is prevented from being adjusted higher than 1V
below the high voltage shutdown setting. When used with a Battery
Charge Digital Temperature Compensation Probe, float voltage is
prevented from being adjusted higher than the Maximum Voltage with
Temperature Compensation setting, or lower than the Minimum Voltage
with Temperature Compensation setting.
7) With the desired float voltage value being displayed, press and release the
FUNCTION SET ENTER key.
8) “ARE YOU SURE?” is displayed. Press and release the FUNCTION SET YES
(+) key.
Note: The Rectifiers will assume the new value at their prevailing load current.
Note: The float voltage will not be changed and the adjustment mode will be
exited if the FUNCTION SET YES (+) key is not pressed within 10
seconds of the “ARE YOU SURE?” prompt.
9) Press and release the FUNCTION SET YES (+) and NO (-) keys simultaneously,
to return to the beginning of the MCA menu tree.