MP SERIES™ Battery Backup System for Traffic Signals: MP2000E System
Volume One: Operating Manual
Page 5-1
Section 5
Adjustments
The MP2000E does not have any hardware adjustments. All of the adjustments are controlled
through software parameters that are set either through the front keypad or the RS232 port.
5.a Contrast Adjustment
The LCD display has a contrast adjustment. Press and hold the ESC button, then within two
seconds, press the ENTER button. Use the Up / Down arrow keys to adjust the contrast.
Press ENTER to save the setting. This setting is not available through the RS232 port.
Note that pressing and holding the ESC alone for more than two seconds gives a “LCD Reset”
message. Press the ENTER key to reset.
5.b Line Conditioning Adjustments
Line detection settings are used for two purposes:
•
To allow the BBS to transfer to and from the battery.
•
To Buck or Boost the input to maintain output voltage in tolerance, in the event that the
input voltage drops or rises.
There are two adjustments that set up the transfer to battery function and two adjustments
that set up the Buck and Boost function. Each corresponding hysteresis is set automatically.
These adjustments are made through the keypad as follows:
•
Enter the Maintenance menu
•
Input the correct password (if password enabled in the Control menu)
•
Enter the Line Conditioning menu
•
Select the parameter listed in Figures 5-1, 5-2, and 5-3
The same adjustments can be made in the RS232 menu by selecting the parameter listed in
Figures 5-1, 5-2, and 5-3 and entering the correct password.
NOTE: Menu item numbers marked with an asterisk (*) are automatically set
hysteresis.
NUMBER PARAMETER NAME
DESCRIPTION
40
Hi Lmt
When the input utility line exceeds this voltage setting
the BBS will transfer to Battery Mode from Line Mode
or Buck Mode.
Figure 5-1: Parameters for Transfer to Battery Adjustments
