These LECS drivers for AC servo motors use pulse input for standalone operation by a PLC. The LECSA drives motors with 17-bit incremental encoders, while the LECSB drives motors with 18-bit absolute encoders. The LECSB-T drives motors with a 22-bit absolute encoder. LECSB-T is also compatible with an additional larger motor, adds the STO safety function, and includes push operation capability. LECSA and LECSB-T also include positioning tables as an alternative to pulse input.