
Image 7.93: Encoder configuration channel 1 (X7) screen
The settings for the SSI protocol can be made in the following parameters. The
following must be specified here: the SingleTurn and MultiTurn bits, die encoding,
and the minimum MultiTurn position.
ID
Index Name
Value
Unit
Description
543
0
ENC_CH1_MultiT
5
Number of multi-turn bits (absolute encoder)
544
0
ENC_CH1_SingleT
19
Number of single-turn bits (absolute encoder)
545
0
ENC_CH1_Code
GRAY
Selection of the encoding of the SSI absolute
encoder
546
0
ENC_CH1_Mode
0001h
Mode selection: SSI absolute encoder
547
0
ENC_CH1_MTBase
-
2147483648
Minimum MultiTurn position (SSI absolute
encoder)
548
0
ENC_CH1_MTEnable
1
Channel 1: Multi-turn as single-turn
Table 7.100: SSI encoder settings
ID No.: 0842.26B.5-01 Date: 09.2020
ServoOne - Device Help
219
7 Control
ID
Index Name
Value
Unit
Description
598
0
ENC_CH1_Position
4909
inc
Channel 1: Position
616
0
ENC_CH1_CycleCount 8
Channel 1: Position encoder sampling cycle
(n x 125
µ
s)
617
0
ENC_CH1_
AbsInitMode
DIG
Channel 1: Mode of absolute value
initialization
Table 7.100: SSI encoder settings (continue)
The scaling of the units is performed in the motion profile of the standard motor
control. A scaling assistant is available for this purpose (“Scaling / Units” button).
Image 7.94: “Motion profile” screen
Because a volumetric flow rate control underlies the position control, the following
settings must be made beforehand.
The parameter P 2840[8] - QActCalc can be used to select whether the volumetric
flow rate value is to be taken from a sensor (MEAS(0) = From measurement) or, as in
this example, determined by means of a calculation using the cylinder speed and
the pump displacement volume (CYL(1) = From cylinder speed).