GE Industrial Solutions Galaxy Power Systems - Manual (Page 202)

Installation Guide for Galaxy Power Systems
15 - 18 Power Up and Installation Completion Issue 12 August 2012
Setting the Low-Voltage Load Disconnect Feature, continued
Setting the LVLD Feature, continued
Step Action
2 The default thresholds are:
• Galaxy Millennium Controller: 

disconnect voltage:

+22V (for +24V systems) or -44V (for -48V systems) 

reconnect voltage:

+24V (for +24V systems) or -48V (for -48V systems)
• Galaxy Vector Controller: 

disconnect voltage: 
+21V (for +24V systems) or -43.20V (for -48V systems) 

reconnect voltage:

+22.20V (for +24V systems) or -44.40V (for -48V systems)
To set the thresholds to other values, enter the appropriate key
sequence:
• Galaxy Millennium Controller: 

Main
 Config  LVD (Basic) or Low V Disc (Intelligent)
 Contactor 2  Type-Load  Change Thresholds 
Enter
• Galaxy Vector Controller: 

Main  Configuration  Contactors  Contactor 2 
Disconnect/Reconnect  Save
Note: The factory default for all load disconnect contactors in the
system is hardwired as Contactor 2. In a Millennium system this
can be changed to Contactor 3 to allow some load contactors to
open at different thresholds. To change, move the jumpers on the
associated EBV contactor drive boards as shown in Figure 8-13.
Then set Millennium’s Contactor 3 configuration to Load with the
desired thresholds as described above.