Maintenance SDQLCAI-1
3-2 May 2002
Cleaning a CAI/SAI Marshalled Termination Assembly involves careful brushing and vacuuming to
remove accumulated dust and dirt harboring chemical particulate that can accelerate terminal or connector
contact corrosion. When cleaning the termination hardware area, be careful not to disturb the wiring.
WARNING
Electrical shock hazard. Remove power from all involved wires and terminals.
3.4 Troubleshooting
A module’s operating status and errors are indicated by its status LEDs. Also, error codes and related
diagnostic messages are displayed by the 4-mation configuration software and the Diagnostic Logger
utility. Details of error codes and messages are available in the following documents:
4-mation Software Messages and Error Codes (document number CG39-21, located in binder
UM39-11)
Module Diagnostic Error Codes (document number CG39-19, located in binder UM39-14)
Module status LEDs are located on the CAI’s bezel. Note LED indications, then refer to Table 3-1 for
CAI status and the listed documents to determine the appropriate course of action.
Interconnect I/O Cable pin assignments for CAI applications are provided in Table 2–2. These are
provided for troubleshooting a suspect cable. As necessary, check field wiring and field-located devices.
Table 3–1 LED Indications
LED LED INDICATION MODULE STATUS ACTION
OK Black (Off) No 24V power input to module
Module on-board power supply failure
Troubleshoot or replace 24V power
supply
Properly seat the module
Replace module
OK Solid Green Module OK. Configured, with no
faults or failures.
Normal, no action required.
OK Flashing Green/ Black Module not configured. No faults or
failures.
Download configuration
OK Solid Red Module severe failure Replace module
OK Flashing Red/ Green Class 2 error detected Check 4-mation error description
(user action).
OK Flashing
(1/sec.)Red/Black
Class 3 error detected Check 4-mation error description
(user action).
OK Flashing
(5/sec.)Red/Black
IOBUS communications error Check control module
Check IOBUS cables
Replace module
Solid Green Module in Control (calculate mode)
ACTIVE
Black (Off) Module in verify mode (or off-line)
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