Yaskawa MP920 Motion Module - Manual (Page 99)

2.4 Position Control Using Motion Commands
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2.4.6 Interpolation with Position Detection (LATCH)
„ Overview
In the same way as for an interpolation feeding, the latch signal is used to latch the current
position counter while the interpolation feed is being executed, and reports the changed latch
position converted to the reference unit system.
A specific discrete input (DI input) is used for the latch signal.
„ Details
For details on interpolation operations, see 2.4.5 Interpolation (INTERPOLATE,
END_OF_INTERPOLATE).
When latching is performed again after current position counter latching has been executed once by the
latch signal, first set the motion command to NOP for 1 scan or more, and then execute the LATCH
command.
IMPORTANT