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
88
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