Special functions
Use these functions to perform commands through the 
menu or function code system. 
Master reset – FC 38
Initial press reset message
Entering FC 38 or accessing this command via the menu 
system will cause the LCD to display the following 
message:
038 Master Reset
While the Master Reset screen is displayed, pressing 
the ESC key causes the LCD to exit the viewing of this 
command and to display the previous sub-menu items. Or, 
pressing the ENTER key will request a (CONFIRM) before 
resetting all demand metering and tap position maximum 
and minimum values.
038 Master Reset
(CONFIRM)
Confirm message
While the (CONFIRM) message is displayed: pressing the 
ESC key causes the LCD to display the initial Master Reset 
screen; pressing the ENTER key causes the execution of 
the command. Once the command has been executed, it 
will return to the original Master Rest screen.
Enter security code – FC 99
A security code must be entered to enable parameter editing 
at the appropriate level. Entering FC 99...
Function Code
                _99
...causes the menu system to enter the security code mode:
Security Code
            -------
This function code does not have an item in the nested-
menu system and can only be accessed by using the 
function code.
Self-test - FC 91
After pressing FUNC, 91 ENTER and accessing the FC 91 
display, press ENTER again to select the option and again to 
confirm. When the self-test is complete, the LCD displays 
the Self-Test Complete screen. Press ESC for further 
keypad use.
Test LEDs
Access this under the Diagnostic menu. With the cursor 
selecting “Test LEDs” press the ENTER key and the front 
panel LEDs will blink three times. The Neutral Light LEDs do 
not blink.
Turn display off
Access this from the Main Menu (Level 1). With the cursor 
selecting TURN DISPLAY OFF press the ENTER key and the 
LCD display will turn off. To turn on the LCD display, press 
any button in the keypad.
Alarms
Use the nested menu to access the lists of acknowledged 
and unacknowledged system alarms. No security code is 
needed to display an alarm; a security code is needed to 
acknowledge an alarm.
• 
ALARMS > Alarms Active Unacknowledged
This displays a list of active, unacknowledged system 
alarms. 
• 
ALARMS > Alarms Active Acknowledged
This displays a list of active, acknowledged system 
alarms. 
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INSTALLATION, OPERATION, AND MAINTENANCE INSTRUCTIONS   MN225003EN   April 2018
CL-7 Voltage Regulator Control