PSI6300.147-L1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI6300.147-L1 is a medium-frequency inverter from the PSI Frequency Inverters series. It supports a mains voltage of 400 to 480 VAC and uses air cooling with an IP20 degree of protection. The inverter features 24 V I/O interfaces and allows up to 5 electrodes with a maximum internal 24 Vdc source current of 2.5 A.
Internal Product Review
The PSI6300.147-L1 is a medium-frequency inverter built for 400–480 VAC mains input. Air cooling and a 24 V I/O interface make integration and thermal management straightforward in enclosed industrial panels. IP20 protection is a strong finishing detail for dependable cabinet installation.
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Product Description:
The PSI6300.147-L1 inverter is produced by Bosch Rexroth Indramat as a member of the PSI Frequency Inverters series. It is a medium-frequency power unit intended to vary the supply to induction heating electrodes or similar loads in automated manufacturing lines. By converting a fixed three-phase mains supply into a programmable medium-frequency output, the unit allows closed-loop control of process energy and supports coordinated operation with motion or temperature controllers.
The inverter accepts a three-phase input of 400–480 VAC, while its power section is cooled by ambient air to maintain semiconductor temperature within design limits. The analog monitor channel can drive loads up to 500 ohms, giving maintenance staff a simple way to observe output variables on chart recorders or PLC analog cards. Parameterization granularity is defined by a 10 A current programming step and a 1 ms time increment, enabling precise shaping of heating ramps. Protection against accidental contact is provided by an IP20 housing, so the device must be mounted inside a cabinet. Digital signaling uses the 24 V I/O rack, and up to five process electrodes can be connected to the inverter’s terminals without external splitters. A lithium AA 3.6 V battery preserves timer and ramp data during power loss.
Configuration is carried out through the X1 connector, a 9-pin D-Sub linked to the controller by a RS-232 (V24) channel. During field commissioning the internal source can supply up to 2.5 A at 24 VDC, so small relays or sensors draw power directly from the drive. Control electronics operate from a dedicated 24 VDC rail that stays active when mains drops, allowing the device to follow the program held in Timer version 47. The design meets the 3K3 (EN 60721-3-3) climatic class, confirming suitability for clean industrial halls with moderate humidity.
