Working With The History Buffer - Lenze 9300 Series Operator's Manual

Troubleshooting and fault elimination
Troubleshooting
3.2.2

Working with the history buffer

Fault detection and reaction
•
Contains the fault detection for every memory location and the reaction to the fault.
– e.g. "OH3 TRIP"
– With a fieldbus, the faults are indicated by a fault number.
Please note:
•
For faults occuring at the same time with different reactions:
– Only the reaction of the fault with the higest priority (priority = TRIP
Warning) is entered into the memory.
→
•
For faults occuring at the same time and with the same reaction (e.g. 2 messages):
– Only the fault which occurred first is entered.
Time
•
Contains the times when the faults occurred
– e.g. "1234567 s"
– Reference time is the mains switch-on time (see dialog box Diagnosis 93xx , top right field)
Please note:
•
If a fault is immediately followed by another several times, only the time of the last occurrence
is stored.
Frequency
•
Contains the frequency of a fault immediately followed by the same fault. The time of the last
occurrence is stored.
Reset fault
•
Click TRIP reset to reset the fault
Delete history buffer
•
This function is possible only when no fault is active.
•
Click History buffer reset to delete the history buffer.
CTi Automation - Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.ctiautomation.net - e.mail: info@ctiautomation.net
(LEERER MERKER, column 2)
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