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Figure 9: Sducfrelaycard Application Block Diagram; Table 8. Sducfrelaycard Relay Logic And Led State - Emerson SolaHD SDUMBUSCARD Instruction Manual

Uninterruptible power systems. sdu ac - a series comm cards
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Condition
no Fault
AC Fault UPs is on Back-Up Mode
on Back-Up Mode - Battery is Low
standby/Inverter is oFF
sDU AC - A seRIes CoMM CARDs InstRUCtIon MAnUAL | 11
Signal State (T-True)
AC Failure
BAT Low
STANDBY
t
t
t

Table 8. SDUCFRELAYCARD Relay Logic and LED State

Figure 9: SDUCFRELAYCARD Application Block Diagram

LED Status
Battery
AC OK
Status
GReen
GReen
ReD
GReen
ReD
ReD
t
oFF
oFF
Relay Logic
Connector Relay Pins (x-closed)
Pin 1-2
Pin 2-3
Pin 4-5
x
x
x
x
x
Pin 5-6
x
x
x
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