Product Description:

The PSI6300.322-L1 control unit manufactured by Bosch Rexroth Indramat belongs to the PSI Frequency Inverters series. It forms the logic, I/O, and network core of a variable-frequency drive, translating high-level setpoints into gate commands for the power stage that controls induction or synchronous motors. By coordinating speed feedback, diagnostics, and plant communication, the unit supports precise torque regulation in automated conveyors, pumps, and material-handling equipment. Engineered for cabinet mounting, the module emphasizes low-voltage interfaces rather than direct power switching, so it can be placed alongside PLC racks without thermal restrictions.

Two analog outputs are available for reference signals, and each channel can source up to 20 mA or swing to 10 V when demanded by the receiving drive, provided the load resistance is at least 500 ohms. DeviceNet support transfers cyclic process data through 9 input bytes and 9 output bytes, while the frame structure follows the proprietary PS5000 protocol with CRC16 error protection. Configuration and maintenance use a 9-pin D-Sub connector that routes an RS-232 link operating at 19,200 bit/s in 8E1 format. In addition, eleven digital signal outputs energize contactors at 24 VDC with a per-channel current limit of 0.1 A.

The housing carries a protection rating of IP20, indicating touch-safe openings and suitability for enclosed panels. For plant networks that rely on standard TCP/IP diagnostics, an embedded interface communicates at 10 Mbit/s. Peripheral equipment such as proximity switches can be powered from the unit itself because five terminals share an external device supply that delivers up to 0.5 A. Internally, four regulated rails furnish 2.5 A at 24 V for logic circuits, timers, and encoder reference lines, and the dedicated timer input recognizes the same 24 VDC level to keep wiring uniform. The eleven solid-state outputs draw from this rail, and built-in current limiting helps protect wiring during fault conditions.