Danfoss FC 300 Design Manual page 153

FC 300 Design Guide
Local bus reference
Digital pot.meter
Analog input X30-11
Analog input X30-12
Function:
Select the reference input to be used for the third
reference signal. Par. 3-15, 3-16 and 3-17 define
up to three different reference signals. The sum of
these reference signals defines the actual refer-
ence.
3-18 Relative Scaling Reference Source
Value:
No function
Analog input 53
Analog input 54
Frequency input 29 (FC 302 only)
Frequency input 33
Local bus reference
Digital pot.meter
Analog input X30-11
Analog input X30-12
Function:
Select a variable value to be added to the fixed
value (defined in par. 3-14Preset Relative Refer-
ence). The sum of the fixed and variable values
(labelled Y in the illustration below) is multiplied
with the actual reference (labelled X in the illus-
tration below). This product is then added to the
actual reference (X+X*Y/100) to give the resul-
tant actual reference.
This parameter cannot be adjusted while the mo-
tor is running.
3-19 Jog Speed
Value:
0 - par. 4-13 RPM
factory setting
How to Programme
[11]
[20]
[21]
[22]
[0]
[1]
[2]
[7]
[8]
[11]
[20]
[21]
[22]
150RPM
() display text []
MG.33.B7.02 - VLT is a registered Danfoss trademark
Function:
Enter a value for the jog speed n
fixed output speed. The 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.
Ramps
3-4* Ramp 1
For each of four ramps (par. 3-4*, 3-5*, 3-6* and
3-7*) configure the ramp parameters: ramp type,
ramping times (duration of acceleration and de-
celeration) and level of jerk compensation for S
ramps.
Start by setting the linear ramping times corre-
sponding to the figures and formulae.
If S-ramps are selected then set the level of non-
linear jerk compensation required. Set jerk com-
pensation by defining the proportion of ramp-up
and ramp-down times where acceleration and de-
celeration 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.
value for use in communication via serial communication port
, which is a
JOG
153