Copyright 2020 Baker Hughes Company. All rights reserved.
Page 78 of 277
Function:
Relevant triggers are system events that are currently affecting the system state of the drive.
If
a drive won’t start, it is highly recommended to review the relevant triggers to identify what
is keeping the drive from starting.
Screen Data:
Triggers that are currently affecting the system state of the drive.
In the above example, the drive shut down and locked out on an underload. The underload is no
longer set (the underload state can only be active when the drive is running). As there are no
triggers on the Relevant Trigger screen that show
“Set”, pressing the Start button should start
the drive startup sequence.
Relevant Trigger
– The fault which triggered the change in drive state Each relevant trigger
consists of a trigger name, trigger state, and a trigger detail.
• Trigger Name – “Underload” in the screenshot. Name of the relevant trigger.
• Trigger State – “Clr” (Clear) in the screenshot. Clear (Clr) indicates that the condition that
caused the trigger to occur is not currently present. Set indicates that the condition that caused
the trigger to occur is still present.
A trigger is Clear if it is not enabled in the current drive state.
• Trigger Detail – “Locked Out” in the screenshot. The Trigger Detail describes
– Needs Limit Set: The trigger will prevent the drive from running until its limit is set. This
prevents the drive from running before important protections, such as motor overload,
are configured.
– Locked Out: The trigger locked out the drive. A locked out drive cannot be started without
user interaction.
– Clr Dly xx:yy: The trigger is set, but the condition that caused the trigger is no longer active.
The trigger will clear when the clear delay counts down to 0.
– Rstrt xx:yy: The trigger restart countdown completes in xx minutes, yy seconds.
– Shutdown: The trigger shut down the drive.
– Not Enabled:The trigger is not enabled in the current drive state.
– Hold: The trigger is holding the drive in the Prepare2Start state.
– No Start: The trigger is preventing the drive from starting.
The only trigger screen available to Level 1 users is the Relevant Trigger screen.
Содержание Apollo 3
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Страница 46: ...Copyright 2020 Baker Hughes Company All rights reserved Page 46 of 277 Figure 20 Backspin Probes Drawing 2...
Страница 139: ...Copyright 2020 Baker Hughes Company All rights reserved Page 139 of 277 Figure 116 Murphy Switch Trigger Example 1...
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