GE Industrial Solutions Millennium II Controller J85501P-1 - Manual (Page 38)

Basic Installation and User’s Guide for the Millennium II Controller
Issue 3 January 2008 38
Test Jacks
The Millennium II LCD panel assemblies also provide test jacks to provide the ability of
using an external meter to monitor the Plant Voltage as seen in figure 4-7. Voltages to the
front panel test jacks are current limited and ESD protected. The controller measures this
voltage to regulate the system bus voltage as well as display it as the battery plant bus
voltage. The value of this voltage is used for many other controller related features.
Serial (PC) Port
A ground referenced RS-232 local port is provided at the front of the display to allow
easy connection to a personal computer or terminal using ANSI T1.317 object oriented
command language.
Lineage Power’s EasyView is also available to provide a user friendly
system interface locally or remotely. See figure 4-6.
Alarm Buzzer
The audible alarm buzzer is located on the front panel display assembly. It can be
programmed from the front panel display to operate as follows:
• Disabled for ALL Alarms
• Audible on PCR
• Audible on PMJ
• Audible on PMN
Contrast Adjust
• For L50, L52 Displays:
Press the + or – keys and hold until the display changes it’s contrast
setting. Once the desired setting is reached, release the button.
• For L51 Displays:
Using a small flat head jeweler’s screwdriver, insert it into the small
opening at the top of the display assembly (above the UP arrow). Turn
clockwise or counter clockwise until the display contrast is set.