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

Parameter Descriptions
16-98 Warning Word 3
Range: Function:
0 [0 - Shows the warning word sent via
*
4294967295 ] the serial communication port in
hex code.

3.17 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.
17-00 Encoders Connected
Option: Function:
This parameter is only available
with VLT
version 4.00 and newer. Select this
option if 1 or 2 encoders are
connected to MCB 102.
[0] One Encoder Only 1 encoder connected, can be
*
any of the supported encoder
types.
[1] Two Encoders Two encoders connected, must be
1 incremental (TTL or SinCos) and 1
absolute (SSI or Endat) without
incremental channel.
3.17.1 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
Do not use incremental encoders with PM motors. In a
closed-loop control, consider absolute encoders or
resolvers.
NOTICE
These parameters cannot be adjusted while the motor is
running.
17-10 Signal Type
Option: Function:
[0] None
[1] RS422 (5V
*
TTL)
[2] Sinusoidal
1Vpp
17-11 Resolution (PPR)
Range: Function:
1024 [10 - 16384 ]
*
M0013101
Programming Guide
®
®
Encoder Option MCB 102
Danfoss A/S © 10/2019 All rights reserved.
3.17.2 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 is
running.
[0] None Select [0] None if the feedback
*
sensor is an incremental encoder
only.
[1] HIPERFACE Select [1] HIPERFACE if the encoder
is absolute only.
[2] EnDat
[4] SSI
[8] Z Pulse Select zero pulse as "absolute" track
when using incremental encoder
with zero pulse.
17-21 Resolution (Positions/Rev)
Range: Function:
Size [ 4 - Select the resolution of the
related 1073741824 ] absolute encoder, that is the
*
number of counts per revolution.
The value depends on setting in
parameter 17-20 Protocol Selection.
17-22 Multiturn Revolutions
Range: Function:
1 [1 - Select the number of multi-turn
*
16777216 ] revolutions. Select value 1 for
single-turn type encoders.
17-24 SSI Data Length
Range: Function:
13 [1 - 32 ] Set the number of bits for the SSI
*
telegram. Select 13 bits for single-
turn encoders and 25 bits for multi-
turn encoders.
17-25 Clock Rate
Range: Function:
260 kHz [100 - 260 Set the SSI clock rate. With long
*
kHz] encoder cables, the clock rate must
be reduced.
17-26 SSI Data Format
Option: Function:
[0] Gray code
*
3 3
259