Ppda Led Control - GE Mark VIeS System Manual

10.2.3 PPDA LED Control

The PPDA I/O pack includes a full set of 24 LEDs to indicate power supply status. The function of most is fixed in firmware,
while four provide an opportunity for application specific indications.
LED I/O Pack Text
1 Pb R
2 Pb S
3 Pb T
4 RSrc
5 SSrc
6 TSrc
7 Aux
8 125V
9 125G
10 125D
11 125P
App1
12
13 24V
14 24G
15 24D
16 24P
App2
17
App3
18
19 AC 1
20 AC 2
21 AC A
22 AC P
23 JPDR
24 Fault
308 GEH-6855_Vol_II
Signal Content
Pbus R is in regulation
Pbus S is in regulation (not used on
JPDG)
Pbus T is in regulation (not used on
JPDG)
All R Pbus Sources OK
All S Pbus Sources OK
All T Pbus Sources OK (not used on
JPDG)
Aux 28 outputs OK
125 V battery volts OK
125 V battery floating
125 V JPDD feeds OK
125 V Pbus feeds OK
Application driven
24 V battery volts OK
24 V battery floating
24 V JPDD feeds OK
24 V Pbus feeds OK
Application driven
Application driven
AC input 1 is OK
AC input 2 is OK
AC1 Outputs OK
AC2 Outputs OK
JPDR Src. Select OK
Application driven
GEH-6855_Vol_II Mark VIeS Functional Safety Systems Volume II
Firmware
Magnitude is 28 ±5%
Magnitude is 28 ±5%
Magnitude is 28 ±5%
R PBUS power supply status switch OK
S PBUS power supply status switch OK
T PBUS power supply status switch OK
All three aux boolean OK
Magnitude is 125 V ± configurable
Volts centered within ± V configurable
Output to JPDD boolean values OK
Booleans on pwr supply feeds OK
Driven by signal space input boolean
Magnitude is 24 V ± configurable
Volts centered within ± V configurable
Output to JPDD boolean values OK
Booleans on pwr supply feeds OK
Driven by signal space input boolean
Driven by signal space input boolean
Magnitude is OK, config range
Magnitude is OK, config range
JPDB AC1 output boolean values OK
JPDB AC2 output boolean values OK
Status feedback from JPDR is OK
Driven by signal space input boolean
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