Danfoss MCA 123 POWERLINK, Operating Instructions Manual, Page: 48 / 53

9.1.2 No Communication with the
Frequency Converter
If there is no communication with the frequency converter,
proceed with the following checks:
Check 1: Is the cabling correct?
Check that the cable is mounted correctly. Check if the
corresponding XDD files L/C LED shows link activity.
Check 2: Does the hardware configuration match?
Check that the
12-60 Node ID in the master matches the
value in 12-50 Configured Station Alias
Check 3: Is the correct XDD file installed?
Download the correct XDD file from
http://www.danfoss.com/BusinessAreas/DrivesSolutions/.
Check that the process data matches the active profile in
the drive.
Check 4: What is the value of 12-69 Ethernet PowerLink
Status ?
The 12-69 Ethernet PowerLink Status contains 32 bits, which
each is linked to internal information. The different bits
give an overview over possible errors.
Bit
no. Description Value=[
0]
Value=[1] Comment
0 Initialisation
State NMT_GS_INITIL
ASATION Mapped to
Object 1F8Ch
(WHAT79188)
1 Not Active
State NMT_CS_NOT_
ACTIVE Mapped to
Object 1F8Ch
(WHAT79188)
2 Basic
Ethernet
State NMT_CS_BASIC
_ETHERNET Mapped to
Object 1F8Ch
(WHAT79188)
3 Pre-
Operational 1
State NMT_CS_PRE_
OPERATIONAL_
1 Mapped to
Object 1F8Ch
(WHAT79188)
4 Pre-
Operational 2
State NMT_CS_PRE_
OPERATIONAL_
2 Mapped to
Object 1F8Ch
(WHAT79188)
5 Ready to
Operate State NMT_CS_OPER
ATIONAL Mapped to
Object 1F8Ch
(WHAT79188)
6 Operational
State NMT_CS_STOP
PED Mapped to
Object 1F8Ch
(WHAT79188)
7 Stopped
State Value shall be
read as 0
8 Reserved Value shall be
read as 0
Bit
no. Description Value=[
0]
Value=[1] Comment
9 Reserved Value shall be
read as 0
10 Reserved Value shall be
read as 0
11 Reserved Value shall be
read as 0
12 Reserved Value shall be
read as 0
13 Reserved Value shall be
read as 0
14 Reserved Value shall be
read as 0
15 Reserved Value shall be
read as 0
16 Reserved Value shall be
read as 0
17 Reserved Value shall be
read as 0
18 Reserved Value shall be
read as 0
19 Reserved Value shall be
read as 0
20 Physical link
on Port 1 No link
present
on Port 1 Link present on
Port 1 Mapped to
object 1030h
subindex 7
21 Physical link
on Port 2 No link
present
on Port 2 Link present on
Port 2 Mapped to
object 1030h
subindex 7
22 Reserved Value shall be
read as 0
23 Reserved Value shall be
read as 0
24 W34 source
No Op State Mapped to
object 178Ch
(WHAT79188)
25 W34 source
Alarm Mapped to
Alarm Word
and Alarm
Word 1
26 W34 source
IP Address
Conflict IP address
conflict
detection in
Basic Ethernet
mode
27 W34 source
Invalid Node
ID Value read from
DIP switch
28 W34 source
Incorrect
PDO
mapping Set on incorrect
Tx or Rx PDO
mapping
29 Reserved Value shall be
read as 0
Troubleshooting MCA 123 POWERLINK Operating Instructions
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