10.2 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 Network LED shows link activity. NS1 or NS2
Check 2: Does the hardware config match?
Check that the Hardware config match the value in
12-08 Host Name
Check 3: Is the correct GSD file installed?
Download the correct GSD file from
http:// www.danfoss.com/BusinessAreas/DrivesSolutions/.
Illustration 10.2 Remove LCP and Plastic Cradle
If there is no communication with the frequency converter,
control the cable in the VLT
®
AutomationDrive. In the FCD
302, control the cable for the control card.
Illustration 10.3 Control the Cable
15-61 Option SW Version GSDML file
FC 100/200/300 1.x or 2.x GSDML-V2.2-Danfoss-
FC-20090620
3.x GSDML-V2.3-Danfoss-
FC-20131010
FCD 302 GSDML-V2.2-Danfoss-
FCD-2011XXXXX
Table 10.3 GSDML File
10.3
Warning 34 Appears even though
Communication is Established
If the master is in stop mode, Warning 34 appears. Check
that the master is in run mode. If the frequency converter
is not in operational state, Warning 34 will appear (60 s
after power up or immediately if the frequency converter
has been in operational state).
10.4
Frequency Converter Does Not
Respond to Control Signals
Check 1: Is the Control word valid?
If bit 10=0 in the Control word, the frequency converter
does not accept the Control word.
Check 2: Is the relationship between bits in the Control
word and the terminal I/Os correct?
Check the logical relationship in the frequency converter.
Define the desired logical relationship in 8-50 Coasting
Select to 8-56 Preset Reference Select according to the
following range of options. Select the FC control mode,
digital input and/or serial communication, using
8-50 Coasting Select to 8-56 Preset Reference Select.
If 8-01 Control Site is set to digital only, then the frequency
converter will not react on commands send via the control
word.
Table 10.4 to Table 10.11 show a coast command's effect
upon the frequency converter for the full range of
8-50 Coasting Select settings.
The effect of control mode upon the function of
8-50 Coasting Select, parameter 8-51 Quick Stop Select, and
8-52 DC Brake Select is as follows:
Troubleshooting
Operating Instructions
64 Danfoss A/S © Rev. 2014-02-27 All rights reserved. MG90U302
1010
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