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3-317 UI/IOT Communications Fail RAP
This Fault Code indicates that a communications failure between the UI PWB and the IOT
PWB was detected.
Initial Actions
•
Refer to BSD 3.1 PWB Communications (UI) and BSD 3.12 Monitoring, in this procedure:
Procedure
PO/PO the machine. If Fault Code 3-317 is still declared, perform the following:
Go to
Flag 3
on BSD 3.1. +24 VDC is measured at J490-7, and +5 VDC is measured at
J490-2 on the UI PWB
(PL
9.5).
Y
N
Perform the following:
•
Go to the +24 VDC-1 Wirenet and check for an open/short circuit
•
Go to the
+24 VDC Power (IIT/IPS LVPS) RAP
•
Go to the +5 VDC-1 Wirenet and check for an open/short circuit
•
Go to the
+5 VDC Power (IIT/IPS) RAP
Perform the following:
•
Go to
Flag 1
on
Flag 2
on BSD 3.1 and check the following wires for an open/short circuit:
–
Check the wire between IOT CPU PWB P/J404-B14 and UI PWB P/J490-10
–
Check the wire between IOT CPU PWB P/J404-B13 and UI PWB P/J490-11
–
Check the wire between IOT CPU PWB P/J404-B16 and UI PWB P/J490-12
–
Check the wire between IOT CPU PWB P/J404-B15 and UI PWB P/J490-13
•
Replace the UI PWB
(PL
9.5)
•
Replace the IOT CPU PWB
(PL
9.2)
Status Indicator RAPs
3-317 UI/IOT Communications Fail RAP, 3-318 IOT/IPS
3-318 IOT/IPS Communications Fail RAP
This Fault Code indicates that a communication failure between the IOT PWB and the IPS
PWB was detected.
Initial Actions
•
Refer to BSD 3.2 PWB Communications (IPS) and BSD 3.12 Monitoring in this proce-
dure:
Procedure
Perform the following:
•
PO/PO the machine. If Fault Code 3-318 is still declared, perform the following:
•
Go to
Flag 1
and
Flag 2
–
Between Post IPS PWB P571-13 and IOT CPU PWB P/J404-A3
–
Between Post IPS PWB P571-14 and IOT CPU PWB P/J404-A4
–
Between Post IPS PWB P571-11 and IOT CPU PWB P/J404-A1
–
Between Post IPS PWB P571-12 and IOT CPU PWB P/J404-A2
•
Replace the Post IPS PWB
•
Replace the IOT CPU PWB
1/05
2-16
manuals4you.com
manuals4you.com
on BSD 3.2. Check the following wires for short/open circuit:
(PL
3.5)
(PL
9.2)
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Troubleshooting
