Danfoss VLT AutomationDrive FC 301 Programming Manual page 181

VLT AutomationDrive FC 301/302
Programming Guide
Preset ref. bit
Preset ref. 3
Preset ref. 4
Preset ref. 5
Preset ref. 6
Preset ref. 7
Table 330: Digital Inputs, Function Descriptions - 2
Option Function
[19] Freeze Freezes the actual reference, which is now the point of enable/condition to be used for [21] Speed up and [22]
ref
Speed down. If speed up/speed down is used, the speed change always follows ramp 2 (parameter 3-51 Ramp 2
Ramp Up Time and parameter 3-52 Ramp 2 Ramp Down Time) in the range 0–parameter 3-03 Maximum Refer-
ence.
[20] Freeze
Freezes the actual motor frequency (Hz), which is now the point of enable/condition to be used for [21] Speed
output
up and [22] Speed down. If speed up/speed down is used, the speed change always follows ramp 2 (parameter
3-51 Ramp 2 Ramp Up Time and parameter 3-52 Ramp 2 Ramp Down Time) in the range 0–parameter 1-23 Motor
Frequency.
When freeze output is active, the drive cannot be stopped via a low [8] Start signal. Stop the drive via a ter-
minal programmed for [2] Coasting inverse or [3] Coast and reset inverse.
[21] Speed Select [21] Speed up and [22] Speed down for digital control of the up/down speed (motor potentiometer). Acti-
up
vate this function by selecting either [19] Freeze ref or [20] Freeze output. When speed up/speed down is activa-
ted for less than 400 ms, the resulting reference is increased/decreased by 0.1%. If speed up/speed down is
activated for more than 400 ms, the resulting reference follows the setting in ramping up/down parameters 3-
x1/3-x2.
Table 331: Shut Down/Catch Up
Unchanged speed
Reduced by %-value
Increased by %-value
Reduced by %-value
Table 332: Digital Inputs, Function Descriptions - 3
Option Function
[22] Speed Same as [21] Speed up.
down
[23] Set-up se-
Select [23] Set-up select bit 0 or select [24] Set-up select bit 1 to select 1 of the 4 set-ups. Set parameter 0-10
lect bit 0
Active Set-up to [9] Multi Set-up.
[24] Set-up se-
(Default digital input 32): Same as [23] Set-up select bit 0.
lect bit 1
Danfoss A/S © 2022.12
2
0
1
1
1
1
N O T I C E
Shut down
0
1
0
1
AU275636650261en-000101 / 130R0334 | 181
Parameter Descriptions
1 0
1 1
0 0
0 1
1 0
1 1
Catch up
0
0
1
1