24 Point I/O Troubles - Simplex 4010 Service Manual

24 Point I/O Troubles

Type
24 PT I/O
Card
Troubles
24 PT I/O
Point
Troubles
Technical Manuals Online! - http://www.tech-man.com
Table 2-7. 24 Point I/O Troubles
Trouble Message
Missing Card
Wrong Card
I/O Card #, Point X
(where X is a point from 1
to 24)
Possible Causes / Troubleshooting
Indicates that the 24 Point I/O card is not communicating with
the master.
• Ensure that no other N2 cards (LCD Annunciator, RS-232,
SDACT, or 4120 Network) have a card address within the
range of 9-14. If the 24 point I/O card is addressed within
this range, replace the SFIO card.
• Check the N2 harness. Make sure that all wires are
attached to the correct terminals and all connectors are
secure.
Indicates that the card within this address range is some type
other than a 24 point I/O card.
• Ensure that no other N2 cards (LCD Annunciator, 24 Point
I/O, RS-232, SDACT, or 4120 Network) have a card
address of 8. If the 24 point I/O card is addressed within
this range, replace the SFIO card.
Indicates a trouble on one of the 24 PT I/O card's points.
Possible troubles include:
•
Manual Override.
• Manual Disable.
• Short. Ensure that the power feeding the LEDs is installed
on TB5.
•
Open. Check field wiring.
2-14