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P 24-41
Ramp (X) Down
Time (Dec)
P 24-04
Hz
n
s
P 24-03
t
dec
Time
P 24-40
Ramp (X)Up
Time (Acc)
t
acc
e3
0b
k4
21
.1
0
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.
e3
0b
k4
22
.1
0
Ramp (X) S-Ramp
Ratio at Accel.End
Jerk compensated
Ramp (X)
Up Time
Ramp (X)
S-Ramp
Ratio at
Accel.End
Linear
Speed
Ramp (X)
Down Time
Ramp (X)
S-Ramp
Ratio at
Dec.End
Ramp (X) S-Ramp
Ratio at Dec.End
Illustration 98: Non-linear Ramping Times
Parameter 24-40 Emergency Mode Ramp Up Time
Table 1049: Parameter 24-40 Emergency Mode Ramp Up Time
24-40 Emergency Mode Ramp Up Time
Default value: 3 s
Parameter type: Range, 1.0 - 3600 s, Array [8]
Setup: All setups
Conversion index: -2
Data type: Uint32
Change during operation: True
This ramp time is used for acceleration while emergency mode is active.
Parameter 24-41 Emergency Mode Ramp Down Time
Table 1050: Parameter 24-41 Emergency Mode Ramp Down Time
24-41 Emergency Mode Ramp Down Time
Default value: 3 s
Parameter type: Range, 1.0 - 3600 s, Array [8]
Setup: All setups
Conversion index: -2
Data type: Uint32
Change during operation: True
This ramp time is used for deceleration while emergency mode is active.
Parameter 24-42 Timeout for Emergency Mode Test
Table 1051: Parameter 24-42 Timeout for Emergency Mode Test
24-42 Timeout for Emergency Mode Test
Default value: 10 min
Parameter type: Range, 1 - 60 min
Setup: All setups
Conversion index: 70
Data type: Uint8
Change during operation: True
A digital impulse triggers the emergency mode operation with stop on all alarms as option
[2] Trip, all alarms/test
in
parameter 24-09
Emergency Mode Alarms Handling
. This test impulse signal can only activate 1 test time period and the normal emergency mode
operation takes over as soon as the test time ends, or it stops the test period if the emergency mode signal disappears. Only "normal
AU275636650261en-000101 / 130R0334
572 | Danfoss A/S © 2022.12
Parameter Descriptions
VLT AutomationDrive FC 301/302
Programming Guide