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4 AUXILIARY AND APPLIED FUNCTIONS
4.11 Mixed Operation Cycle Function
Precautions during control
Refresh cycle
The refresh cycle of the status devices and monitors of servo amplifier axes and command generation axes operating at the
low speed operation cycle is the low speed operation cycle. However, the following status devices are refreshed at the
operation cycle.
• [St.1047] Speed change accepting flag (R: M30144+n/Q: M2061+n)
• [St.1048] Automatic decelerating flag (R: M30208+n/Q: M2128+n)
• [St.1049] Speed change "0" accepting flag (R: M30272+n/Q: M2240+n)
Axis B operating at low speed operation cycle performs position follow-up of the feed current value of axis A operating at
operation cycle
When fetch cycle is an operation cycle command signal/control device
When the fetch cycle is an operation cycle command signal or control device, a maximum delay equivalent to the low speed
operation cycle occurs compared to an operation cycle axis. Therefore, when command signals and control devices are
updated at an interval less than the Motion setting low speed operation cycle, the update may not be detected in the low
speed operation cycle.
Detection timing for an axis stop command
Combining axes with different control operation cycles
Combining axes with different control operation cycles and performing interpolation operation instructions is not possible. A
minor error (error code: 19F9H) occurs, and the program does not start.
Operation cycle
processing
Low speed operation
cycle processing
Axis B (feed
current value)
g h
Axis A (feed
current value)
a b c d e f
Operation cycle
setting
Low speed operation cycle magnification setting (4 times)
: Monitor refresh processing
: Position follow-up operation processing
Operation cycle
processing
Low speed operation
cycle processing
Axis stop signal
Operation cycle
setting
Low speed operation cycle magnification setting (4 times)
: Axis stop accept processing
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