Mitsubishi SC-J2SJ4CTC03M Control Signal Conversion Cable for MELSERVO MR-J2S-A to MR-J4-A Upgrade

The Mitsubishi SC-J2SJ4CTC03M is a control signal conversion cable set for the MELSERVO MR-J2S-A to MR-J4-A renewal path. It is the amplifier-side conversion kit cable used when an MR-J2S series AC servo amplifier is replaced by an MR-J4 series unit in A-type applications for 11 kW and larger models, where the existing J2S encoder cable is retained. The set carries the control signals between the J4 CN1 interface and the CN1A and CN1B connectors, and it includes a lead for the DC 24 V power connection. Its construction uses AWG28 conductors in 18-pair and 13-pair control cables plus AWG24 conductors for the power lead, with PVC insulation. The cable set is a standard Mitsubishi renewal kit item, classified as a control signal cable, and is intended for servo amplifier retrofits where the original MR-J2S wiring and encoder cables are being reused. It supports the electrical interfacing needed to bring MR-J4 control and power connections into an existing MR-J2S cabinet. Typical use is in MELSERVO servo systems requiring a controlled drive upgrade while preserving the existing motor feedback cabling. The part is identified by Mitsubishi material number 295828 and carries a 12-month warranty.