Danfoss VLT PROFIBUS DP MCA 101, Руководство по установке, Страница: 17 / 20

State LED Description
Power on
Red:
Solid red
The interface is defect. Contact
Danfoss.
Green:
Flashing green The interface is OK.
Baud rate search
Green:
Flashing green
Searching for the baud rate. Check
the connection to the master if
the interface stays in this state.
Wait parameterising
Green:
Long green
flash Baud rate found - waiting for
parameters from the master.
Red:
Long red flash
Wrong parameters from the
master.
Wait configuration
Green:
Short green
flash Parameters from master OK –
waiting for configuration data.
Red:
Short red flash
Wrong configuration data from
the master.
Data exchange
Green:
Solid green
Data exchange between the
master and the frequency
converter is active.
Red:
Flashing red
Clear state. Warning 34, Fieldbus
fault is active and a bus reaction
in parameter 8-04 Control Word
Timeout Function is executed.
Table 4.2 Net Status
LED Description
No light Off No PROFIBUS DP-V1 communication is active.
Green:
Short green flash DP-V1 communication from a master class 1
(PLC) is active.
Green:
Long green flash DP-V1 communication from a master class 2
(MCT 10, FDT) is active.
Green:
Solid green DP-V1 communication from a master class 1
and 2 is active.
Red:
Flashing red Internal fault.
Table 4.3 Module Status
4.2.2 No Communication with the
Frequency Converter
When there is no communication with the frequency
converter, check that:
•
The cabling is correct.
The red and green cables are connected to the
correct terminals as shown in
Illustration 3.10 .
•
The bus connection is terminated at both ends.
If not, terminate the bus connection with
termination resistors at the initial and final nodes.
4.2.3 Warning 34 Fieldbus Fault Appears
Warning 34, Fieldbus fault is not only related to wiring.
Warning 34, Fieldbus fault appears when:
•
There is no master communication for 60 s after
power-up.
•
The master is in stop mode.
•
Master communication is not established, or is
incorrectly configured.
•
Wiring is incorrect.
Action:
•
Check the master mode and master configu-
ration.
•
Check the wiring for correct master mode and
communication.
Troubleshooting Installation Guide
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