7. Troubleshooting & Servicing
Technical Manual P/N 9894.00.G6
7-13
7.5
DIAGNOSTIC FEATURES
To help investigate the possible causes of failure or malfunctioning of the generator, different
diagnostic means are available to the service representative and to the operator. The most basic
instance of diagnostic is done each time the generator is turned on. Indeed, every generator power-
on process triggers the execution of a self test that will validate the basic functions of the generator
(Section 7.5.1).
A more comprehensive diagnostic can be obtained by using either the Epsilon operator console
service mode
(Section 7.5.2) or the Epsilon PC tools’
Service tools
(Section 7.5.3). These
diagnostic means allow monitoring certain generator states, I/Os activation, changing the status of
the 3-Phase Inverter boards, looking some statistics and parameters and testing specific functions
(Sections 7.5.1 thru 7.5.3).
Finally, different diagnostic points can be found on the Controller board and elsewhere. Refer to
Section 7.5.4.
7.5.1
Power On Self-Test
The generator goes through a self-test routine every time it is turned on or the service mode is
exited.
1.
Verify that no fault is detected on the console during a power-on initialization process.
2.
At the end of the self-test, the console ends up into normal display mode with the default
workstation and tube loading factors. Verify that no message displays on the console.
−
If a message is reported, make sure it does not refer to a generator fault. The generator
will be able to expose if the Fault and Limit lamps are off.
−
If a fault is latched and the generator cannot be reset to normal operation, refer to the
Operator Message Table 77 or enter the Monitor Mode (Sections 7.5.2 & 7.5.3).
7.5.2
Operator Console’s Service Mode
The operator console
Service mode
includes the following modules:
1.
X-ray Tube Calibration module, for maintenance (Section 5.2);
2.
Fluoro Calibration, for maintenance (Sections 5.4 & 5.5);
3.
Setup Tools, for maintenance and troubleshooting;
o
Console Setup; Contrast, brightness and volume (Section 4.8)
o
System Setup:
Anode Rotor Brake & Start Module (Section 7.5.2.2)
System Monitor:
−
Software Version Viewer (Section 7.5.2.4)
−
History Log (
Section 7.5.2.5
)
−
Hardware Register (Sections 7.5.2.3 & 7.5.2.6)
−
System Statistics (Section 7.5.2.7)
