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IM581127000
Issue AB, March 22, 2012
Checking System Over Voltage Alarm 1 and Over Voltage Alarm 2 Procedure
Page 104
Chapter 5. Installing the Modules and Initially Starting the System
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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.
8) Without readjusting the "24V Under Volt1" setpoint, press the ESC key
repeatedly to return to the Main Menu. Then navigate as follows: Settings (ENT)
/ "Power System" (ENT) / "General" (ENT) / "24V Under Volt2". Record the
displayed voltage setpoint.
9) Press ENT. Use the up or down arrow keys to adjust the "24V Under Volt2"
value to one-half volt above the system voltage recorded in step 3). Press ENT.
a) Requirement: An audible alarm sounds. Alarm will be silenced in
Requirement c).
b) Requirement: ACU+ "Critical/Major" alarm indicator stays red.
c) Requirement: Press ESC repeatedly to return to the Main screen. ACU+
displays "Alarm".
To see the specific alarm, press ENT to display the Main Menu.
Navigate as follows: "Status" (ENT) / "Active Alarm" (ENT).
The Active Alarm screen lists two critical alarm.
Press ENT. "Power System 24V Under Volt2 Critical" is displayed.
Use arrow keys to scroll through the list of alarms.
"Power System 24V Under Volt1 Critical" is displayed.
d) Requirement: External "Relay 1 Critical Summary Alarm" and "Relay 4
Under Voltage 1 Alarm" remain active. External "Relay 5 Under Voltage 2
Alarm" activates.
10) Press ESC repeatedly to return to the Main Menu. Navigate to "Settings" (ENT)
/ "Power System" (ENT) / "General" (ENT) / "24V Under Volt2".
11) Press ENT. Use the up or down arrow keys to adjust the "24V Under Volt2"
setting to the value recorded in step 8). Press ENT.
12) Use the up or down arrow keys to scroll up to "24V Under Volt1".
13) Press ENT. Use the up or down arrow keys to adjust the "24V Under Volt1"
setting to the value recorded in step 6). Press ENT.
a) Requirement: ACU+ "Critical/Major" alarm indicator goes from red to off.
b) Requirement: Press ESC repeatedly to return to the Main screen. ACU+
displays "No Alm".
c) Requirement: All external alarms deactivate.
1) Verify system is operating and no alarms are present.
2) Verify the ACU+ displays the Main screen. If not, press ESC repeatedly to return
to the Main screen.
3) Record the system voltage displayed on the ACU+ Main screen.
4) Press ENT to go to the Main Menu. Navigate to and select "Settings" (ENT).
5) If a password screen opens, a password must be entered to allow the User to
make adjustments. If a password was previously entered and has not yet timed
out, skip this step and proceed to step 3). Otherwise, to enter a password, with
the cursor at the User Name field (default is "Admin"), press the down arrow key
to move cursor down to the password line. Press ENT. "0" is highlighted. Press
the up arrow key once to change the "0" to"1" (default password is "1"), then
press ENT twice. (Note: If you have been assigned a unique User Name and
password, follow this procedure to enter these.)
Installation Instructions
Spec. No. 581127000 (Model 710
)
NPBA
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