Danfoss FC 300 Design Manual page 287

FC 300 Design Guide
RS-485 Installation and Set-up
Bus Speed Reference Value
speed reference value is transmitted to the fre-
quency converter in a relative value in %. The
value is transmitted in the form of a 16-bit word;
in integers (0-32767) the value 16384 (4000 Hex)
corresponds to 100%. Negative figures are for-
matted by means of 2's complement. The Actual
Output frequency (MAV) is scaled in the same way
as the bus reference.
The reference and MAV are scaled as follows:
287
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