4-11
Controller Troubleshooting
TP-5672 11/95
System-Status, Not-In-Automatic
Error
For location of pushbuttons, switches, LEDs, and keys
referred to in this section, see Figure 2-1.
NOTE
Pressing the Automatic/Test pushbutton will cause the
generator set to start and run.
The System-Status, Not-In-Automatic LED should flash
if the Automatic/Test pushbutton is pressed, if the
Automatic/Inhibit key switch is in the Inhibit position, or if
the Automatic-Transfer/Manual-Transfer key switch is in
the Manual position. If one of these conditions is true, but
the System-Status, Not-In-Automatic LED is not
flashing, perform the following steps.
a. Press
the
LAMP
TEST
key.
If
the
System-Status, Not-In-Automatic LED does not
turn on, the status panel is defective. Replace
the logic board assembly.
b. Connect TB-DC1-9 to TB-DC1-34. If the
System-Status, Not-In-Automatic LED is not
flashing, connect P2-6 to TB-DC1-34. If the
System-Status, Not-In-Automatic LED is now
flashing, replace the power supply board. If the
System-Status, Not-In-Automatic LED is not
flashing when P2-6 is grounded, perform step 4.
See Appendix B, Figure B-9 for location of the P2
ribbon cable and other power supply board
components referred to in this section. See
B, Figure B-6 for location and
description of P2 ribbon cable pins. See
Figure 4-7
for
the
System-Status,
Not-In-Automatic LED wiring diagram.
c. If the System-Status, Not-In-Automatic LED is
not flashing when P2-6 is grounded, remove the
connection from P2-6 to TB-DC1-34, and check
the P2 ribbon cable connection by performing
the following steps.
d. Remove all power sources.
e. Wait for 30 seconds.
f. Making sure not to bend or break any of the pins,
remove the P2 ribbon cable connector.
g. Inspect the pins on the P2 ribbon cable
connector. Specifically check P2-6.
h. If any of the pins are bent, carefully bend them
back. If any of the pins are broken, the ribbon
cable connector is defective. Replace the ribbon
cable connector.
i. Carefully reconnect P2 ribbon cable connector.
12. If the System-Status, Not-In-Automatic LED is still
not flashing, check the continuity of the P2 ribbon
cable connector. Disconnect the P2 ribbon cable
connector from both the power supply board and
from the main logic board. Using an ohmmeter,
place one test lead on the power supply board side
of P2-6, and place the other test lead on the main
logic board side of P2-6. If the resistance is high
indicating a lack of continuity, replace the ribbon
cable connector. If the resistance is low indicating
continuity, replace the logic board assembly.
Main
Logic
Board
Power
Supply
Board
P2-6
P2-6
TB-DC1-9
560447
Figure 4-7. Wiring Diagram— System-status, not-in-automatic LED