Emerson SolaHD SDU DC UPS B Series - Contact Relay Truth Table

Page: 12
Contact Relay Truth Table
Table 2
UPS Status
Low Battery On Battery Battery Fault
Pin 1-2 Pin 2-3 Pin 4-5 Pin 5-6 Pin 7-8 Pin 8-9
N.C. N.O. N.C. N.O. N.C. N.O.
Normal
mode
O X O X O X
Battery
mode
(30-100%
SOC)
O X X O O X
Battery
mode - Low
Battery
(20-30%
SOC)
X O X O O X
Battery fault
I I I I X O
Legend:
X – Contact close
O – Contact open
I - Indeterminate
N.C. - Normally close
N.O. - Normally open