Danfoss FC 300 Programming Manual page 55

Parameter Descriptions
3-17 Reference Resource 3
Option: Function:
[2] Analog input 54
[7] Frequency input 29
[8] Frequency input 33
[11] Local bus reference
*
[20] Digital pot.meter
[21] Analog input X30-11
[22] Analog input X30-12
[29] Analog Input X48/2
3-18 Relative Scaling Reference Resource
Option: Function:
Select a variable value to be added to the
fixed value (defined in par. 3-14 Preset
Relative Reference). The sum of the fixed and
variable values (labelled Y in the illustration
below) is multiplied with the actual reference
(labelled X in the illustration below). This
product is then added to the actual reference
(X+X*Y/100) to give the resultant actual
reference.
This parameter cannot be adjusted while the
motor is running.
[0] No function
*
[1] Analog input
53
[2] Analog input
54
[7] Frequency
input 29
[8] Frequency
input 33
[11] Local bus
reference
[20] Digital
pot.meter
[21] Analog input
X30-11
[22] Analog input
X30-12
[29] Analog Input
X48/2
FC 300 Programming Guide
3-19 Jog Speed [RPM]
Range:
Application
dependent
3.5.3 Ramps
For each of four ramps (par. group 3-4*, 3-5*, 3-6* and 3-7*)
configure the ramp parameters: ramp type, ramping times
(duration of acceleration and deceleration) and level of jerk
compensation for S ramps.
Start by setting the linear ramping times corresponding to the
figures.
If S-ramps are selected then set the level of non-linear jerk
compensation required. Set jerk compensation by defining the
proportion of ramp-up and ramp-down times where accelera-
tion and deceleration are variable (i.e. increasing or decreas-
ing). The S-ramp acceleration and deceleration settings are
defined as a percentage of the actual ramp time.
®
MG.33.M9.02 - VLT is a registered Danfoss trademark
Function:
[Applica- Enter a value for the jog speed n
tion which is a fixed output speed. The
*
dependant] frequency converter runs at this speed
when the jog function is activated. The
maximum limit is defined in
par. 4-13 Motor Speed High Limit
[RPM].
See also par. 3-80 Jog Ramp Time.
3-4* Ramp 1
,
JOG
3 3
55