Switching Signal Characteristics
2
0
2
0
-0
9
35
7.3
Hysteresis with SP1 and SP2 (Smaller than Zero Point)
You can set a uniform hysteresis area for each of the switch points SP1 (setpoint 1) and SP2
(setpoint 2). Keep in mind that the window mode hysteresis limit has an outward-facing effect.
The rotary encoder accepts a hysteresis area smaller than the zero point as a permissible con-
figuration status. However, it should be noted that the zero point automatically works as a
switching threshold when the measured value is not met during operation.
The figure below illustrates this.
Figure 7.3
Switching point characteristics with hysteresis area smaller than the zero point
The window mode between the switch points SP2 and SP1 is shown in red. The respective
hysteresis area for each switch point is yellow. The ineffective hysteresis area smaller than the
zero point is illustrated by the dashed lines. Depending on the current direction of rotation and
the current status of the switching channel, there is either a change or no change in the switch-
ing channel if the limits are exceeded.
The following table shows the respective switching characteristics for each combination. It is
necessaryto distinguish between the position sector (see previous figure) that is changed to
the next position sector and the status of the switching channel has shortly before the sector
change.
Position
sector 1
White section = area outside the hysteresis areas and the setpoints
Position
sector 2
Yellow section = hysteresis area of the smaller setpoint
Position
sector 3
Red section = area between setpoint 1 and setpoint 2
Position
sector 4
Yellow section = hysteresis area of the smaller setpoint
SP1
hig
h a
ctiv
e
Po
sit
io
n
se
ct
or
1
P
o
siti
o
n
s
ec
to
r 4
P
os
iti
on
s
ec
to
r
3
Po
siti
on
se
cto
r 2
Switch
Switch
Switch
Switch
Switch
Switch
shaft
Switch
SP2
Hyst. limit
low active
0
Index
Parameter
Value
0x41 Sub 3
SSC1 Config. Hyst
300
0x40 Sub 2
SSC1 Param. SP 2
200
0x40 Sub 1
SSC1 Param. SP 1
500
0x60
Config-ST Resolution
1000