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HIMax System 9 Life Cycle<br />
For possible reasons for the Error LED to light, refer to the X-CPU manual. In the Control<br />
Panel, execute the Resource command on the Online menu to switch off the Error LED.<br />
All the modules automatically detect disturbances during operation and use the Error LED<br />
to indicate them on the module front plate.<br />
Use SILworX to diagnose faults (except for communication faults) even if the controller is in<br />
the STOP state.<br />
Prior to replacing an I/O module, check if disturbances exist on the external line and if the<br />
corresponding sensor or actuator is properly functioning.<br />
9.3.3 Connecting the redundant Power Supply<br />
Because of potential high currents, act with particular caution when connecting a redundant<br />
power supply during operation.<br />
9.3.4 Repair<br />
WARNING<br />
Physical injury due to overheating possible when connecting a power supply unit!<br />
Check proper polarity, prior to connecting connecting a redundant power supply unit<br />
during operation!<br />
NOTE<br />
Malfunction of the controller due to insufficient repair!<br />
Only HIMA is authorized to repair a safety-related HIMax <strong>system</strong> or the modules contained<br />
in it.<br />
In case of unauthorized intervention in the device, functional safety cannot be ensured<br />
and the warranty or certification lapses.<br />
HI 801 001 E Rev. 3.00 Page 93 of 104
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