8.14 Cam group (CAM switch)
Two cam group outputs are implemented in ServoOne. Up to 4 tracks with max. 32
cam definitions can be assigned to each of the two outputs. This provides a
maximum of 128 configurable cams that can set or reset a digital output when
defined positions are reached. The performance characteristics of the cam group are
presented briefly below.
l
Two electronic cam groups whose parameters can be configure separately
with up to a max. of 128 configurable cams
l
Each digital output can optionally be controlled by an electronic cam group.
l
Configurable hysteresis to avoid jitter effects on the switching edges of the
cams.
l
Individual cams can be hidden by means of a configurable parameter value.
l
4 x 32-bit status words to display the active cams. Cam switching that is
dependent on the rotation direction via parameter settings.
l
Check for implausible cam parameter configuration with error display.
8.14.1 Parametrization of the cam group
The cam group implemented in ServoOne is realized analogously to a mechanical
cam roll with radially applied elevations (cams) along the roll axis. A maximum of up
to 128 cams can be arranged on the roll with start and end position in ascending
order in relation to the roller diameter. When the cam is reached, an output of the
controller can be switched.
The reference position for evaluating the electronic cam group can be selected
using parameter P 1427 MPRO_CAM_CamInPosFS.
ID No.: 0842.26B.5-01 Date: 09.2020
ServoOne - Device Help
291
8 Motion profile
The activation of a digital output via the cam group is done via the function selector
of the digital outputs. The function selectors of the digital outputs can be selected
using parameters P 122 - P 126 MPRO_OUTPUT_FS_OSDxx). Here the value
CAMLineA (45) - cam group track A or CAMLineB (46) - cam group track B must be
set.
ID
Index Name
Unit Description
122
0
MPRO_OUTPUT_FS_
OSD00
Function of digital output OSD00
123
0
MPRO_OUTPUT_FS_
OSD01
Function of digital output OSD01
124
0
MPRO_OUTPUT_FS_
OSD02
Function of digital output OSD02
126
0
MPRO_OUTPUT_FS_
RELOUT1
Function of digital output RELOUT1
Table 8.43: Cam group - parameter activation of a digital output
8.14.1.1 Activate / deactivate cam group
The parameter P 1420 MPRO_CAM_CamActive activates / deactivates the cam
group module.
ID
Index Name
Unit Description/setting
1420
0
MPRO_CAM_CamActive
This parameter activates / deactivates the cam group
module.
0: Cam switching value deactivated
1: Cam switching value activated
Table 8.44: P 1420 MPRO_CAM_CamActive
8.14.1.2 Number of configured cam limits
The P 1421 MPRO_CAM_CamSizeConf item can be used to specify the number of
configured cam limits (start and end position in each case) per track.
