Parameters: 17-** Feedback - Danfoss VLT AutomationDrive FC 301 Programming Manual

Parameter Descriptions

3.18 Parameters: 17-** Feedback

More parameters to configure the feedback from the
®
encoder (VLT Encoder Input MCB 102), resolver (VLT
Resolver Input MCB 103), or the frequency converter itself.
3.18.1 17-1* Inc. Enc. Interface
Parameters in this group configure the incremental
®
interface of the VLT Encoder Input MCB 102. Both the
incremental and absolute interfaces are active at the same
time.
NOTICE
These parameters cannot be adjusted while the motor
runs.
17-10 Signal Type
Select the incremental type (A/B channel) of the encoder in use.
Find the information on the encoder datasheet.
Select [0] None if the feedback sensor is an absolute encoder
only.
Option:
[0] None
[1] RS422 (5V TTL)
*
[2] Sinusoidal 1Vpp
17-11 Resolution (PPR)
Range: Function:
1024 [10 - 10000] Enter the resolution of the incremental
*
track, that is, the number of pulses or
periods per revolution.
3.18.2 17-2* Abs. Enc. Interface
Parameters in this group configure the absolute interface
®
of the VLT Encoder Input MCB 102. Both the incremental
and absolute interfaces are active at the same time.
17-20 Protocol Selection
Option: Function:
NOTICE
This parameter cannot be adjusted while
the motor runs.
Select [0] None if the feedback sensor is an
[0] None
*
incremental encoder only.
[1] HIPERFACE Select [1] HIPERFACE if the encoder is absolute
only.
[2] EnDat
[4] SSI
MG33ML02
Programming Guide
17-21 Resolution (Positions/Rev)
Range:
Size
®
related
17-24 SSI Data Length
Range:
13
*
17-25 Clock Rate
Range:
Size related
17-26 SSI Data Format
Option:
Function:
[0]
*
[1]
17-34 HIPERFACE Baudrate
Option:
[0]
[1]
[2]
[3]
[4]
*
[5]
[6]
3.18.3 17-5* Resolver Interface
This parameter group is used for setting parameters for the
®
VLT
Usually, the resolver feedback is used as motor feedback
from permanent magnet motors with parameter 1-01 Motor
Control Principle set to [3] Flux w/motor feedback.
Resolver parameters cannot be adjusted while the motor
runs.
Danfoss A/S © 02/2016 All rights reserved.
Function:
[ 4 - Select the resolution of the absolute
131072] encoder, that is, the number of counts
*
per revolution.
The value depends on setting in
parameter 17-20 Protocol Selection.
Function:
[13 - 25] Set the number of bits for the SSI telegram.
Select 13 bits for single-turn encoders and 25
bits for multi-turn encoders.
Function:
[ 100 - 260 Set the SSI clock rate. With long
*
kHz] encoder cables, the clock rate must
be reduced.
Function:
Gray code
Binary code Set the data format of the SSI data.
Function:
NOTICE
This parameter cannot be adjusted while the
motor runs.
Select the baud rate of the attached encoder.
The parameter is only accessible when
parameter 17-20 Protocol Selection is set to [1]
HIPERFACE.
600
1200
2400
4800
9600
19200
38400
Resolver Input MCB 103.
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