Mitsubishi J4-P1M0.4B-EB Servo Drive BC386A789G52A Control Board MR-J4-40B-EB
J4-P1M0.4B-EB / J4-P1M0.4-EB.
Mitsubishi J4B-C10-EB Servo Drive Control Board BC386A819G54 for MR-J4-40B-EB
You will find that MITSUBISHI processors handle high-speed counting without hiccups.