Rockwell Automation 57C422B 2 Axis Servo Module User Manual
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2-Axis Servo Module M/N 57C422B
Once Only Rotary Mode: When the master axis and the
axis under control are configured for rotary mode in register
0, the rotary position cam endpoints bit in register 130 is set
to 1, and the run mode bit is set to 0, the position cam will
operate in the rotary mode once only. In this mode, the
beginning and ending points of the table do not need to be
equal. After the cam is enabled and the master axis moves
past the master reference position, the cam is executed
once. To enable the cam to run again, the "do cam profile"
command must be issued again. When re-enabling the cam,
you must ensure that the master axis is behind the master
reference position.
Continuous Rotary Mode: When the master axis and the
axis under control are configured for rotary mode in register
0, the rotary position cam endpoints bit in register 130 is set
to 1, and the run mode bit in register 130 is set to 1, the
position cam will operate in continuous rotary mode. In this
mode, the beginning and ending points of the table do not
need to be equal. After the cam is enabled and the master
axis moves past the master reference position, the cam is
executed once. Then, whenever the master unwinds, the
following axis will execute the cam again from its current
position. If the master axis runs in reverse, the position cam
will work backwards through the table. The cam will continue
to execute even if the master axis backs up behind the