Introduction of E-Cam Operation ASDA Series Application Note
2-8 March, 2015
SXYZUBA0
0~30~60~20~800~3F-0~2
Low WordHigh Word
Parameter Setting
of E-Cam
SXYZUBA0
0~0~0~20~800~3-0~2
Low WordHigh Word
P5-88
Figure 2.9 P5-88.Z: Settings for the Engaging Timing
The engaging timing is specified by P5-88.Z:
Engage immediately: When P5-88 = 1, it means E-Cam will be engaged immediately
when E-Cam function is enabled. This setting is applicable when slave axis has to keep
operating unless E-Cam is disabled. P5-88.Z has to be set 0 when using this setting.
DI enabled: E-Cam engages when DI (0x36) is ON (high level), and meanwhile
P5-88.Z = 1. If DI remains ON after E-Cam is enabled, the cam will remain engaged.
Use Capture function: When P5-88.Z = 2 and the first data is captured, E-Cam is
engaged. When capture function is enabled, then the signal will be input via DI7 after
the sensor is triggered. If using this function to engage E-cam, the engaging timing will
be the moment that sensor is triggered and signal be input via DI7. Unlike the previous
method that uses the signal of sensor to trigger DI 0x36, carrying out capture function
allows the time sequence of the system become more accurate because DI7 inputs
with high speed in capture function, which action time is only 5 us.
2.3.2 Settings for Disengaging E-Cam
Disengaged
Cam
P5-88.U
Figure 2.10 Disengaging of E-Cam
Compare with the engaging time of E-Cam, its disengaging time is rather complicated. After
disengaging, the slave axis will remain still regardless the action of master axis. It is because the
master axis is unable to use clutch to control the salve axis. See Figure 2.10.
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