Danfoss VLT PROFIBUS DP MCA 101 Kurulum Kılavuzu - Sayfa 17
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Troubleshooting
State
Power on
Baud rate search
Wait parameterising
Wait configuration
Data exchange
Table 4.2 Net Status
No light
Green:
Green:
Green:
Red:
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.
MG33C602
Installation Guide
LED
Red:
Green:
Green:
Green:
Red:
Green:
Red:
Green:
Red:
LED
Danfoss A/S © 07/2015 All rights reserved.
Solid red
Flashing green The interface is OK.
Flashing green
Long green
flash
Long red flash
Short green
flash
Short red flash
Solid green
Flashing red
Off
No PROFIBUS DP-V1 communication is active.
Short green flash
DP-V1 communication from a master class 1
(PLC) is active.
Long green flash
DP-V1 communication from a master class 2
(MCT 10, FDT) is active.
Solid green
DP-V1 communication from a master class 1
and 2 is active.
Flashing red
Internal fault.
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.
Description
The interface is defect. Contact
Danfoss.
Searching for the baud rate. Check
the connection to the master if
the interface stays in this state.
Baud rate found - waiting for
parameters from the master.
Wrong parameters from the
master.
Parameters from master OK –
waiting for configuration data.
Wrong configuration data from
the master.
Data exchange between the
master and the frequency
converter is active.
Clear state. Warning 34, Fieldbus
fault is active and a bus reaction
in parameter 8-04 Control Word
Timeout Function is executed.
Description
4
4
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