Panasonic FPG Series Technical Manual page 162

Pulser Input Operation FP∑ Positioning Unit
Reference:
Value of the internal absolute counter during pulser input operation
The internal absolute counter counts the number of pulses output. Consequently, in the instant that
pulses are being input, the number of pulses input from the pulser does not equal to the value counted
by the counter.
Note:
When the input signal from the pulser is ignored
If the specified multiplication is high and the target speed is low, the next pulser input command may be
received before the specified pulse output has been completed, making it impossible to obtain output of
the input number of pulses.
If this happens, the target speed should be changed to an appropriate value.
Note:
The pulser input operation and the feedback counter use the same pulse input terminal. Select either.
Do not turn ON Y107 when using the feedback counter.
Feedback counter and pulser input operation are available for each axis, so either can be selected
respectively per each axis.
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