8.5 Extended Diagnosis
Receive the extended diagnosis function, alarm and
warning information from the frequency converter. The
setting of
parameter 8-07 Diagnosis Trigger
determines
which frequency converter events trigger the extended
diagnosis function:
•
When
parameter 8-07 Diagnosis Trigger
is set to
[0] Disable, no extended diagnosis data are sent
regardless of whether they appear in the
frequency converter.
•
When
parameter 8-07 Diagnosis Trigger
is set to
[1] Alarms, extended diagnosis data are sent
when one or more alarms arrive in the alarm
16-90 Alarm Word
or
9-53 Profibus Warning Word
.
When
parameter 8-06 Reset Control Word Timeout
is set to
[2] Alarms/Warnings, extended diagnosis data are sent if 1
or more alarms/warnings arrive in the alarm
16-90 Alarm
Word
or
9-53 Profibus Warning Word
, or in the warning
16-92 Warning Word
.
The extended diagnosis sequence is as follows:
If an alarm or warning appears, the frequency converter
indicates that to the master by sending a high priority
message via the output data telegram. This causes the
master to send a request for extended diagnosis
information to the frequency converter, to which the
frequency converter replies. When the alarm or warning
disappears, the frequency converter again indicates that to
the master, and on the following request from the master,
return a standard DP diagnosis frame (6 bytes).
Byte
Bit no.
Name
0 to 5
-
Standard DP diagnosis data
6
-
PDU length
7
0-7
Status type =0x81
8
8-15
Slot=0
9
16-23
Status information
10
24-31
16-90 Alarm Word
11
32-39
16-90 Alarm Word
12
40-47
16-90 Alarm Word
13
48-55
16-90 Alarm Word
14
56-63
Reserved for future use
15
64-71
Reserved for future use
16
72-79
Reserved for future use
17
80-87
Reserved for future use
18
88-95
16-92 Warning Word
19
96-103
16-92 Warning Word
20
104-111
16-92 Warning Word
21
112-119
16-92 Warning Word
22
120-127 Reserved for future use
23
128-135 Reserved for future use
24
136-143 Reserved for future use
25
144-151 Reserved for future use
26
152-159
9-53 Profibus Warning Word
27
160-167
9-53 Profibus Warning Word
28
168-175 Reserved for future use
29
176-183 Reserved for future use
30
184-191 Reserved for future use
31
192-199 Reserved for future use
Table 8.18 Content of the Extended Diagnosis Frame
Troubleshooting
Programming Guide
54
Danfoss A/S © Rev. 05/2014 All rights reserved.
MG37G102
8
8
