PSI63C0.760-L2 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI63C0.760-L2 is part of the PSI Frequency Inverters series and offers a mains voltage range of 480 to 690 VAC with IP20 ingress protection. It supports up to 256 programs, features a DeviceNet interface capable of handling 72 signals, and uses a 9-pin D-Sub connector for programming via an isolated V24/RS232 interface. The frequency inverter uses air cooling and is equipped with a 3.6 V lithium AA backup battery.
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Product Description:
The PSI63C0.760-L2 is a frequency inverter produced by Bosch Rexroth Indramat within the PSI Frequency Inverters series. It converts three-phase mains power into controlled output for speed-regulated AC motors used in conveying, packaging, and general automation. By integrating the inverter into a DeviceNet network, plant controllers can issue setpoints, receive status words, and coordinate drives without additional gateways, simplifying system wiring and diagnostics. This arrangement also supports centralized control of start, stop, and speed commands across connected equipment.
The inverter accepts a supply range of 480–690 VAC and expels heat by forced air so that internal semiconductor temperatures remain within design limits. Its enclosure carries an IP20 rating, indicating finger-safe access is provided while airflow remains unobstructed. Over the DeviceNet bus, the unit can exchange up to 72 signals, and each cyclic telegram is built from symmetric input and output fields of 9 bytes. Because the telegram size is fixed, network load remains predictable during cyclic exchanges. This deterministic channel lets a PLC trigger ramps, read feedback, or activate programmed sequences that are stored locally. Users may store as many as 256 programs, enabling quick selection of speed tables or motion profiles without re-entering data. The isolated serial port supports setup and trace capture while preventing ground loops between the drive and a connected computer.
For time-critical index moves, the unit processes step changes at a resolution of 1 ms. A nonvolatile buffer based on a 3.6 V cell preserves real-time clocks and parameter sets, and Bosch Rexroth specifies a replaceable Lithium AA battery for this task. The stored settings remain available after power is removed, allowing the drive to retain its prior configuration. The control board is accessed through a 9-pin D-Sub connector, and the port uses V24/RS232 signal levels. Continuous air cooling, denoted as method L, maintains component life without external heat exchangers.
