Product Description:

The PSI63C0.762-W1 belongs to the PSI Frequency Inverters series manufactured by Bosch Rexroth Indramat. It is specified as a medium-frequency inverter that converts three-phase plant power into the controlled, higher-frequency output required for induction heating, welding, and similar automation tasks. The unit integrates water-channel cooling, onboard digital and serial I/O, and a Profinet interface so it can regulate process energy while exchanging status data with a PLC over standard industrial networks.

This inverter operates from a supply of 400–480 VAC and draws a nominal mains current of 110 A when delivering rated power. Inside the converter stage, the bus and transformer are built to handle a maximum primary current of 800 A. Downstream, the psg3100 secondary circuit can supply peaks up to 36 kA to the work coil. Control flexibility is provided through 26 discrete inputs that accept machine interlocks or sensor flags. A water-cooled plate removes up to 420 W of thermal loss, provided the cooling loop maintains at least 4 l/min of flow and limits pressure drop to 0.1 bar. Additional heat from the power electronics and control boards is specified as 110 W of cabinet loss at maximum load.

On the output side, the logic board furnishes 19 discrete outputs for contactor drives, alarms, or fan relays, while high-density communication is handled by 208 serial inputs and 160 serial outputs that map parameters to a supervisory computer. Switch-cabinet base dissipation is 69 W, so conductors with a minimum cross-section of 35 mm² are recommended to minimize voltage drop. Timer functions are synchronized over Ethernet, and the Profinet fieldbus carries diagnostics and setpoints in real time. The assembly weighs 25 kg, which allows direct panel mounting without external support brackets.