Chapter 3: Healthy mains - Application Hazard
Your answer is correct!
As you probably have seen under the Application supervision page. Here you can see the difference in the application drawing.
A power management system must have the same application drawing in all controllers.
If the controllers don't contain the same application drawing, it will result in the Appl. hazard alarm.
Now it's up to you to find out why the application drawing is changing.
Try to think about what happened at the moment of the alarm occurrence.
Remember to check all the M-Logic, logs, I/Os and Application configuration.
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