GE AF-650 GP Design Manual page 201

AF-650 GP Design Guide
10.10.3 Bus Speed Reference Value
Speed reference value is transmitted to the frequency 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 formatted 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:
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10.10.4 PROFIdrive Control Profile
This section describes the functionality of the control word and status word in the PROFIdrive profile. Select this profile by setting par. O-10 Control Word Profile.
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