User's Manual Part 5

8065751025 5.1
Constellation
®
Vision System
SECTION FIVE
TROUBLESHOOTING
Table 5-1 is a general troubleshooting guide that addresses symptoms/observations
and what the operator can do to try and solve the observed problem. Figure 5-5 and
Table 5-2 are presented as aids to rapid location of failed or malfunctioning parts
or components in the Constellation
®
Vision System; they are not meant to replace
standard troubleshooting methods. In all cases, should the corrective actions not
provide the desired result, call your Alcon Technical Services Department.
Equipment Malfunction
The system communicates equipment information and malfunctions through the
display of Information Messages, Advisories, System Errors, and System Faults
based on the level of severity.
The presentation of errors is priority based, with System Faults being the highest
followed by System Errors, Advisory Messages, and Information Messages. Since
it is possible for the system to generate multiple simultaneous error conditions, the
errors are queued according to their priority. In the event of multiple error conditions
within the same category, the most recent error is displayed.
System Fault Messages
System Faults are displayed full screen as shown in Figure 5-1. System Faults require
complete system shutdown and the system performs the following actions when a
fault is detected:
Place Sub-Systems into a safe state.
Display fault message screen.
Activate an error tone.
Ignore any input from all the keys and the footswitch.
The user must cycle power to reset the system.
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Figure 5-1 System Fault Display Screen