4.1.3. Setting up PCP Communication
Via the CMD tool it is possible to read and write to parameters, and read
the English parameter text of each parameter.
To start PCP communication you must be in Monitor state.
Click on the station number and click on the right mouse button and
choose: Device
Parameterization
.
The dialog box will now show Danfoss, VLT FC 300, Profile: 21.
In order to be able to read all parameters into the frequency converter,
select:
Device and Read Parameter List
.
The CMD tool will now start reading all parameters, which takes 3-4 mi-
nutes.
When all parameters have been read, CMD will show the first parameter
55F1hex Par. 1 at the first row.
55F1hex corresponds to 22001dec.
This means that all FC 300 parameters can be accessed simply by adding
22000dec to the FC 300 parameter.
For example if you want to write to par. 3-41
Ramp 1 ramp up time
, you
must write to 22341dec (5745hex).
The CMD tool can only indicate parameters using hexadecimal numbers.
The two first indexes are for handling the “Max Torque Limit” (par. 4-16
and 4-17) when running Custom Telegram 1.
If you want to change the value of par. 3-41
Ramp 1 ramp up time
to 10
sec you must write 1000 in column next to index 5745 Hex.
You have to enter 1000 because par. 3-41 has a conversion index of -2
(= 0.01). Highlight the row and click on F5 Write Value.
The ramp up time in par. 3-41 has now been changed to 10 sec.
To activate the new settings with PCD, the CMD needs to read the con-
figuration from the VLT frequency converter again.
Click on the controller board and select Process data. The Process data
should now be 64 bits, corresponding to 4 words: control word, reference,
PCD 1 and PCD 2.
4. How to Configure the System
FC 300 Interbus Operating Instructions
14
MG.33.H3.02 - VLT is a registered Danfoss trademark
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