Danfoss VLT AutomationDrive FC 361 Series Design Manual page 93

Appendix
11.11.3 Bus Speed Reference Value
Speed reference value is transmitted to the drive 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 with 2's
complement. The actual output frequency (MAV) is scaled in the same way as the bus reference.
Master-slave
CTW Speed reference
Follower-slave
Actual output
STW
frequency
Illustration 11.18 Bus Speed Reference Value
The reference and MAV are scaled as shown in Illustration 11.19.
(C000hex)
Par.3-00 set to
(1) -max- +max
Par.3-03
Max reference
Par.3-00 set to
(0) min-max
Illustration 11.19 Reference and MAV
MG06K102
Design Guide
16bit
-100%
Reverse
Danfoss A/S © 03/2019 All rights reserved.
0%
(0hex)
Forward
0
0%
(0hex)
Forward
Par.3-02
Min reference
100%
(4000hex)
Par.3-03
Max reference
11 11
100%
(4000hex)
Par.3-03
Max reference
91