velocity control unit Fanuc for 2 axis was in 1983 designed for machine tools and industrial Fanuc robots for the Fanuc AC Servo motor models 1 and 2. The A C Servo unit is made up of the velocity control unit, Control cards A20B-1001-0470 with A16B-1200-0520 and power transformer All A06B-6050-H201 Drives carry a warranty and have been tested by us. We can offer shipment next day through most of UK / Europe and some parts of the USA. Today we still support this fanuc part with ex stock replacments or repair