BFGoodrich PS-823 - Power Supply Charging

BFGoodrich
Avionics Systems,
Inc.
Component
Maintenance Manual
P/N 10
1-1075-(
)
Typical
Discharge
Voltage
Curve
Premature
Voltage Dip
Minutes
UNIT
UNDER TEST END
OF
DISCHARGE
VOLTAGE MINIMUM DISCHARGE
TIME
PS-823A,
C,
E, G
19.0 Vdc
24 Minutes
PS-823B,
D, F, H
19.0
Vdc
47 Minutes
20
Cell
Battery
Test 20.0 Vdc
27 Minutes
Battery
Acceptance Values and Discharge Curve
Figure 108
B.
Battery
Pack Charging Procedure (in unit)
Remove
the load resistor
and the
voltage meter from the
Jl
connector pins.
Do
ng remove the
jumperwire form between
pins 11
and 13. Connect the
28.0Vdc
power supply
to
Jl
pins 10
(positive)
and
7 (ground)as shown
in Figure 109.
Remove the
power
source añer charging for at least 24 hours and
allow
4 hours for batteries to
stabilize
prior to performing further test.
Perform
the Initial
Battery Test,
Paragraph A.
NOTE: If unit fails the above test añer having
received
a full charge
and
the
unit is
in
warranty
period, contact your BFGAS distributor
for
Service Center
Information.
If the unit is out of
warranty,
proceed
to Battery Pack and
Cell Test Procedure,
Paragraph
C.
10
-+
Regulated
11
28.0Vdc
Jumper
PS-823
13
Wire
1.25A
per
PS-823
7
-
-
PS-823
Power Supply
Charging
Figure 109
msmijtp202TestFaultisodiskl59
24-20-03
Page 109
Revision
A
June
30,
1999