Mitsubishi Electric MELSEC FX2NC-16MT-D/UL - Programming Caution

FX2NC Series Programmable Controllers Inputs 5.
5-9
5.2.2 Programming caution
When using 110V AC units, high speed counter and interrupt routines are not suitable for use
due to the long 'ON/OFF' times. The following instructions are also not suitable.
FNC 51 REFF FNC 70 TKY
FNC 52 MTR FNC71 HKY
FNC 56 SPD FNC 72 DSW
FNC 68 ROTC FNC 75 ARWS
✘