Lenze EVS9323-EK User Manual

Troubleshooting and fault elimination
8-3
 SHB9300CRV EN 2.0
8.2 Fault analysis with the history buffer
l The history buffer is used to trace faults.
l Fault messages are stored in the history buffer in the order of their ocurrence.
l Open the ”Dialog Diagnosis” menu in the parameter menu by a double click.
Fig. 8-2 Dialog box ”Diagnostics 9300”
8.2.1 Structure of the history buffer
l The history buffer provides 8 memory locations. The fields under ”fault history” show the
memory locations 2 to 7.
l The fields under ”Actual fault” show memory unit 1. It contains information on the active fault.
– The first memory unit is written only after the elimination or acknowledgement of the active
fault. This entry eliminates the last fault from the history buffer so that it can no longer be
read.
l The history buffer contains three information units for every fault occurred. The fields under
”Actual fault” and ”Fault history” have the following meaning:
– Field 1: Fault recognition and reaction
– Field 2: Instant of fault
– Field 3: Frequency of fault
The following table shows the assignment of information and codes.
Codes and retrievable information Memory location
C0168 C0169 C0170 Subcode
1
Active fault
2
History buffer location 1
F
r
e
q
u
e
n
c
y
o
f
t
h
e
3
History buffer location 2
F
a
u
l
t
r
e
c
o
g
n
i
t
i
o
n
a
n
d
T
i
m
e
o
f
t
h
e
l
a
s
t
Frequency of the
i
m
m
e
d
i
a
t
e
l
y
f
o
l
l
o
w
i
n
g
4
History buffer location 3
F
a
u
l
t
r
e
c
o
g
n
i
t
i
o
n
a
n
d
reaction
T
i
m
e
o
f
t
h
e
l
a
s
t
occurrence
i
m
m
e
d
i
a
t
e
l
y
f
o
l
l
o
w
i
n
g
o
c
c
u
r
r
e
n
c
e
5
History buffer location 4
o
c
c
u
r
r
e
n
c
e
6
History buffer location 5
7
History buffer location 6
8
History buffer location 7
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Lenze EVS9323-EK Specifications

General

Brand	Lenze
Model	EVS9323-EK
Category	DC Drives
Language	English