The FANUC A50L-0001-0328 is a Fuji Electric 7MBP50RTA060A-51 intelligent power module (IPM) rated at 600V and 50A. It is used in compatible FANUC servo and robot amplifiers to switch DC-bus power into controlled three-phase motor output.

This seven-chip R-IPM3 configuration combines a three-phase IGBT inverter bridge with an additional braking IGBT. The listing is for the semiconductor module only, not a complete FANUC amplifier.

A50L-0001-0328 Product Information

IGBT Power-Stage Function

The module switches the amplifier DC bus to generate controlled U, V and W motor phases. Its additional braking device supports regenerative-energy control in compatible circuits. R-IPM3 technology integrates gate-drive and protective functions for overcurrent, short circuit, control-supply undervoltage and overheating, with an alarm output for the host circuit.

Replacement and Compatibility Checks

Confirm both A50L-0001-0328 and the complete 7MBP50RTA060A-51 marking. Match the amplifier model, suffix, terminal layout, mounting holes, control pins and heatsink arrangement. Related versions such as 7MBP50RTA060-01 or other A50L modules should not be treated as direct substitutes without circuit-level confirmation.

Testing and Installation Notes

REACO CNC checks the casing, terminals, insulation and semiconductor junctions, followed by installed operational testing when applicable. Replacement requires qualified personnel. Isolate power, discharge the DC bus, clean the heatsink, apply suitable thermal compound evenly and follow the specified mounting torque.

Related resources: FANUC servo amplifiers, FANUC A06B-6160-H003 βiSV drive and FANUC amplifier repair services.