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8 Electronic Cam8.5.3 Stop
Setting an Externally Triggered Stop
X axis Y axis Z axis
SM74 SM174 SM274
OFF: Externally triggered stop disabled
ON: Externally triggered stop enabled
If an externally triggered stop is enabled, the electronic cam stops based on stop mode settings upon an
OFF-to-ON switch of an external stop signal.
Cam enabling
Stop mode
Execution of electronic
cam
Slave axis
position
Setting an externally
triggered stop
Stop signal
Stop after the current
cycle
Immediate stop
8.5.3 Stop
You can stop electronic cams or electronic gears in two ways:
●
Turn off special elements for cam enabling.
●
Set an externally triggered stop to stop electronic cams or gears by an OFF-to-ON switch of external
stop signals.
In both ways, electronic gears can be immediately stopped, while electronic cams can be stopped after the
current cycle or immediately, depending on stop mode settings.
8.5.4 Stopping Electronic Cams
If the stop mode for electronic cams is set to “stop after the current cycle”, when you stop electronic
cams in either of the ways described in Section 8.5.3, they will stop after the current cycle is nished. To
immediately stop electronic cams, you can use special SM elements.
The following table lists special elements for stopping electronic cams.
Flag of Running/Stopping
X axis Y axis Z axis
SM89 SM189 SM289
ON: Electronic cam running
OFF: Stopping electronic cam
When a cam is enabled, the system initializes cam data. After initialization, the ag bit of running is
automatically set to ON.
When the stop mode is set to “stop after the current cycle”, the cam is disabled. To stop the cam
immediately, you can set the ag bit of running to OFF.
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