Toa FS-970 SERIES User Manual
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When the emergency function is operated while the AC power is cut off (power failure)....
Current flows in Coil F in the Junction Panel JP-0410 and contact point f switches, thereby causing the 24
VDC power output from REMOTE (left) of the Emergency Power Supply Panel DS-029B to return to the DS-
029B's REMOTE (right). As a result, the current flows in Coils B and C and contact points b and c switch as
shown below, transmitting 24 VDC to outputs 1-4.
D
E
b
c
e
f
d
C
B
JP-0410
F
AC power
DS-029B
Charging
circuit
Battery 1
Battery 2
Output 1
Output 2
Output 3
Output 4
REMOTE (left)
REMOTE (right)
EMG ACTI
EMG DS ACTI
EMG DS CTRL