Ydoa Specific Alarms; Logic Signal; Relay Circuit - GE Mark VIeS System Manual

6.3 YDOA Specific Alarms

The following alarms are specific to the YDOA I/O pack.
33-129
Description Logic Signal [ ] Voting Mismatch
Possible Cause In a TMR application, the values for the specified signal do not agree between R, S, and T I/O packs.
Solution
• Verify that R, S, and T I/O pack configurations are equal to ToolboxST configuration.
• Check the I/O pack power and networking.
• Check the I/O pack mounting on terminal board.
• Replace the I/O pack.
130-141
Description Relay circuit [ ] fuse(s) blown
Possible Cause The I/O pack fuse status feedback indicates a possible blown fuse.
Solution Perform the following items in the following order:
• Using the following fuse table
blown fuse.
• Verify the contact wetting/input power to the terminal board.
• Verify the terminal board configuration and jumper settings (on TRLYH1B, S1B, or WROBH1A).
• Verify that the I/O pack output and fuse diagnostics are enabled properly in the ToolboxST configuration.
• Confirm that all connectors, power plugs, I/O packs, and daughterboards are fully seated.
• If the problem persists, perform the following:
− Replace the I/O pack.
− Replace the WROB, F, or G daughterboard or the WPDF daughterboard.
− Replace the terminal board. (This requires a ToolboxST configuration Build and Download to update the terminal
board serial number.)
138 GEH-6855_Vol_II
Terminal Board Fuses, check the fuse(s) in the appropriate terminal board for a possible
GEH-6855_Vol_II Mark VIeS Functional Safety Systems Volume II
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