Yaskawa FSP Amplifier FlexWorks - Manual (Page 85)

Operating the FSP Amplifier Using FlexWorks
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4.10.2. Troubleshooting
In certain circumstances, the motor will not stop at the point
specified by the registration process. The variable Motion_status
indicates how the motion ended.
1. The motor traveled further than the registration distance,
but not as far as the target position of the original motion
command.
This will occur if the registration distance is not
sufficiently long for the motor to be able to decelerate to
a stop at the profile acceleration (See section 12.2.2.).
Either increase the registration distance, or increase the
profile acceleration.
2. The motor stopped at the target position specified by the
original motion command, as if registration had not
occurred.
This will occur if the latching condition was not met. To
ensure that the motor will stop by registration, increase
the distance to be traveled specified by the motion
command.
4.10.3. Commands
Two commands are required when using latching: one to enable
and define a condition for latching, and another to define the
stopping distance once the condition has been met.
4.10.3.1. LATCHING_TRIGGER
Format: LATCHING_TRIGGER <Condition>
This command enables latching and specifies the condition that
must be specified for latching to begin. Specifically, once this
condition has been met, the variable Latched_position_ready is set
from 0 to 1.
Figure 51: Programming a LATCHING_TRIGGER Command