Option Name
Description
[0]*
Quadrature A/B format Encoder with 2 tracks: A and B, displaced 90° for detecting the rotational direction.
[1]
Single channel 33
Encoder with 1 track connected to terminal 29.
[2]
Single channel w/dir.
Encoder with 1 track connected to terminal 29. The direction is set with a signal on terminal
32: 0 V = forward/clockwise, 24 V = reverse/counterclockwise.
Parameter 5-78 Term 27/29 Encoder Sim
Table 387: Parameter 5-78 Term 27/29 Encoder Sim
5-78 Term 27/29 Encoder Sim
Default value: [1] Actual position
Parameter type: Option
Setup: All setups
Conversion index: –
Data type: Uint8
Change during operation: False
Select the source for generation of the encoder simulation output. To enable 24 V encoder simulation on terminal 27/29, set
param-
eter 5-30 Terminal 27 Digital Output
and
parameter 5-31 Terminal 29 Digital Output
to
[54] 24V Encoder Sim
.
Op-
tion
Name
Description
[1]*
Actual po-
sition
The encoder simulation is a mirror of the actual position. The output is scaled by
parameter 5-75 Term 27/29
Pulses Per Revolution
related to 1 motor revolution. One motor revolution is represented by the number of
pulses set in
parameter 5-75 Term 27/29 Pulses Per Revolution
. This means that 1 motor revolution is repre-
sented by the number of pulses set in
parameter 5-75 Term 27/29 Pulses Per Revolution
.
[2]
Comman-
ded posi-
tion
The encoder simulation is a mirror of the commanded position (position setpoint for the position PI control-
ler). The output is scaled by
parameter 5-75 Term 27/29 Pulses Per Revolution
related to 1 motor revolution.
This means that 1 motor revolution is represented by the number of pulses set in
parameter 5-75 Term 27/29
Pulses Per Revolution
.
[3]
Vir. master
position
The encoder simulation is generated by the virtual master function. The output is scaled by
parameter 5-75
Term 27/29 Pulses Per Revolution
. Virtual master speed reference can be set by fieldbus REF 1 or the source
selected in
parameter 3-16 Reference Resource 2
relative to
parameter 3-27 Virtual Master Max Ref
. Example:
With
parameter 3-27 Virtual Master Max Ref
= 50 Hz and a reference of 50% the output corresponds to a
master speed of 50 Hz * 60/min * 50% =1500 RPM. The pulse frequency will be
parameter 5-75 Term 27/29
Pulses Per Revolution
, for example, 1024 * 1500 RPM / 60 = 25.6 kHz. Speed of the individual followers is
determined by their scaling in
parameter 3-22 Master Scale Numerator
,
parameter 3-23 Master Scale Denomi-
nator
,
parameter 17-72 Position Unit Numerator
, and
parameter 17-73 Position Unit Denominator
.
[4]
24V en-
coder
32/33
The encoder simulation is a mirror of the encoder signal on terminal 32/33. The drive can be used as repeat-
er.
5.6.8 5-8* I/O Options
N O T I C E
This parameter group is only available in FC 302.
Parameter 5-80 AHF Cap Reconnect Delay
Table 388: Parameter 5-80 AHF Cap Reconnect Delay
5-80 AHF Cap Reconnect Delay
Default value: 25 s
Parameter type: Range, 1 - 120 s
Setup: 2 setups
Conversion index: 0
Data type: Uint16
Change during operation: True
AU275636650261en-000101 / 130R0334
228 | Danfoss A/S © 2022.12
Parameter Descriptions
VLT AutomationDrive FC 301/302
Programming Guide
Summary of Contents for VLT AutomationDrive FC 301
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