User's Manual

Table Of Contents
Section 5877 User Instructions
Issue AQ, January 15, 2013 Spec. No. 582140000 (Models 802NLDB, 802NLEB and 802NL-B)
Page 4-6 Chapter 4. MCA System Adjustments
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Systems, North America, Inc. Any copying, use, or disclosure of it without the written permission of Emerson Network Power, Energy Systems, North America, Inc. is strictly prohibited.
ADJUSTING RECTIFIER CURRENT LIMIT
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.
5) Repeatedly press and release the FUNCTION SELECT DOWN arrow key until
"PCU CURRENT LIMIT = aaaaaA" or "PCU CURRENT LIMIT = aaaaaMAX" is
displayed.
6) Press and release the ALARM CUTOFF and FUNCTION SET ENTER keys
simultaneously.
7) Observe the value displayed. This is the system current limit setting. Each
Rectifier’s current limit circuit will be automatically adjusted to ensure that system
current does not exceed this value. To change this value, press and hold the
FUNCTION SET YES (+) or NO (-) key. Release the key when the desired value
is displayed.
Note: PCU current limit = aaaaaMAX indicates system current limit is set to the
sum of the maximum current capacities of all Rectifier Modules installed
in the system.
8) With the desired current limiting value being displayed, press and release the
FUNCTION SET ENTER key.
9) “ARE YOU SURE?” is displayed. Press and release the FUNCTION SET YES
(+) key.
Note: The system current limit value 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.
10) Press and release the FUNCTION SET YES (+) and NO (-) keys simultaneously,
to return to the beginning of the MCA menu tree.