•
•
•
Enter a percentage (relative) value to be either added to or deducted from the actual reference for catch up or slow down. If catch
up is selected via 1 of the digital inputs (
parameter 5-10 Terminal 18 Digital Input
to
parameter 5-15 Terminal 33 Digital Input
), the
percentage (relative) value is added to the total reference. If slow down is selected via 1 of the digital inputs (
parameter 5-10 Termi-
nal 18 Digital Input
to
parameter 5-15 Terminal 33 Digital Input
), the percentage (relative) value is deducted from the total reference.
Obtain extended functionality with the DigiPot function. See
parameter group 3-9* Digital Potentiometer
.
Parameter 3-13 Reference Site
Table 182: Parameter 3-13 Reference Site
3-13 Reference Site
Default value: Size related
Parameter type: Option
Setup: All setups
Conversion index: –
Data type: Uint8
Change during operation: True
Select which reference site to activate.
Option
Name
Description
[0]
Linked to hand/auto
Use local reference when in hand-on mode, or remote reference when in auto-on mode.
[1]
Remote
Use remote reference in both hand-on mode and auto-on mode.
[2]
Local
Use local reference in both hand-on and auto-on mode.
N O T I C E
When set to
[2] Local
, the drive starts with this setting again after a power-down.
4.4.3 3-4* Ramp 1
For each of the 4 ramps (
parameter groups 3-4* Ramp 1
,
3-5* Ramp 2
,
3-6* Ramp 3
, and
3-7* Ramp 4
) configure the ramp parameters:
Ramp type
Ramping times (duration of acceleration and deceleration)
Level of jerk compensation for S-ramps
Start by setting the linear ramping times corresponding to
.
P 3-*2
Ramp (X) Down
Time (Dec)
P 4-13
High-limit
RPM
Reference
n
s
P 4-11
Low limit
t
dec
Time
P 3-*1
Ramp (X)Up
Time (Acc)
t
acc
e
3
0
b
a
8
7
2
.1
1
Illustration 43: Linear Ramping Times
If S-ramps are selected, set the level of non-linear jerk compensation required. Set jerk compensation by defining the proportion of
ramp-up and ramp-down times where acceleration and deceleration are variable (that is, increasing or decreasing). The S-ramp ac-
celeration and deceleration settings are defined as a percentage of the actual ramp time.
AU373327181955en-000101 / 130R1208 | 111
Danfoss A/S © 2021.08
Parameter Descriptions
VLT® AutomationDrive EZ FC 321
Programming Guide