Danfoss FC 300

Illustration 2.4: Brake release sequence for hoist mechanical brake control
2.6. Parameters: Reference/Ramps
2.6.1. 3-** Reference/Reference Limits/Ramps
Parameters for reference handling, definition of limitations, and configuration of the reaction of
the frequency converter to changes.
2.6.2. 3-0* Reference Limits
Parameters for setting the reference unit, limits and ranges.
3-00 Reference Range
Option: Function:
Select the range of the reference signal and the feedback signal.
Signal values can be positive only, or positive and negative. The
minimum limit may have a negative value, unless
Speed closed
loop
[1] control or Process [3] is selected in par. 1-00 Configu-
ration Mode
.
[0] Min. - Max For positive values only.
[1] -Max - +Max For both positive and negative values.
3-05 Reference/Feedback Unit
Option: Function:
Select the unit to be used in Process PID Control references and
feedbacks.
[0] None
[1] %
[2]
*
RPM
[3] Hz
2. How to Programme FC 300 Programming Guide
70 MG.33.M2.02 - VLT
®
is a registered Danfoss trademark
2