Lenze EVS9332xS - Manual (Page 323)

Troubleshooting and fault elimination
Troubleshooting
Fault analysis with the history buffer
9
9.2
9.2.2
l
9.2−2 EDSVS9332S EN 6.0−07/2013
Note Entry
History buffer
location
Field
„ †
3 Next to last fault
l The content of memory units 1 ... 7 is
shifted "upwards" by one memory unit.
l The content of memory unit 8 is
removed from the history buffer and
can no longer be retrieved.
l Memory unit 1 is deleted (= no active
fault).
4 Third to last fault
5 Fourth to last fault
6 Fifth to last fault
7 Sixth to last fault
8 Seventh to last fault
Explanations
, „
Fault indication and fault response (C0168)
l The entry is effected as LECOM error number.
l If several faults with a different response occur at the same time:
– Only the fault the response of which has the highest priority is entered
(1. TRIP, 2. message, 3. warning).
l If faults with the same response occur (e. g. 2 messages) at the same time:
– Only the fault that was triggered first is entered.
– The OH7 and OH3 warnings are exceptions. If an OH7 warning is pending and
the OH3 motor temperature threshold is reached, the OH7 warning is
overwritten by the OH3 warning. If the motor temperature decreases again,
the OH7 warning reappears.
‚, Time of the fault (C0169)
l Reference time is the content of the power−on time meter ‰.
l If a fault is immediately followed by another fault for several times, only the
time of the last occurrence is stored.
ƒ, † Frequency of occurrence of the fault (C0170)
l The time of the last occurrence is stored.
‡ Click on Fault memory reset to clear the history buffer.
The history buffer can only be cleared if no fault is active.
ˆ Click on TRIP reset to reset the fault.