PSI6000 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI6000 is a medium frequency inverter from the PSI Frequency Inverters series. It operates with a supply voltage of 24 VDC and offers an internal 24 V source rated at 2.5 Amps. The inverter supports a maximum of 5 electrodes, 256 programs, and features a degree of protection rated at IP20.
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Product Description:
The PSI6000 belongs to the PSI Frequency Inverters series produced by Bosch Rexroth Indramat. As a medium-frequency inverter, it controls welding transformers and similar inductive loads by shaping the current profile delivered to the electrodes. Within automated assembly cells, the unit interfaces between the machine controller and the power stage, regulating secondary current and timing so that resistance welds receive repeatable energy pulses suited to production-grade joining processes in automotive, appliance, and general metal fabrication lines. This arrangement lets the inverter coordinate electrical output with the motion sequence of the welding station during each weld cycle.
It operates from a supply of 24 VDC, and an internal auxiliary rail can deliver 2.5 A for sensors, pilot valves, or fieldbus couplers. The electronics are housed in an IP20 enclosure, so the inverter must be mounted inside a protected cabinet. Control memory is split between non-volatile Flash Memory for stored operating code and buffered RAM for user data, while a lithium cell rated at 3.6 V preserves volatile parameters during power loss. Sequence control uses ten force-profile steps during each weld cycle, and parameter upload and trace retrieval take place through a V24/RS232 programming port on the X1 nine-pin D-Sub connector.
Process flexibility is expanded with a library that stores 256 individual welding programs, and each program supports three programmable weld times resolved to 1 ms. Up to five electrodes can be assigned, and the inverter can issue a maximum of 9 successive current impulses per program to match different material stack-ups. Closed-loop regulation is accomplished through a pressure output that sources 20 mA, allowing proportional valves to follow the commanded squeeze force. The medium-frequency topology and millisecond timing help maintain consistent energy delivery across changing material conditions, and the program library supports quick selection of repeatable weld patterns for different assemblies.
Frequently Asked Questions about PSI6000:
Q: What is the required supply voltage for the PSI6000 frequency inverter?
A: The PSI6000 operates with a supply voltage of 24 VDC for reliable power input.
Q: What is the backup battery voltage for the Bosch Rexroth PSI6000?
A: The backup battery voltage for the PSI6000 is specified at 3.6 V.
Q: What degree of protection does the PSI6000 inverter provide?
A: The PSI6000 is rated with degree of protection IP20, which offers basic protection against solid objects.
Q: How many programs can be saved in the memory of the PSI6000?
A: This unit can store up to 256 individual programs, allowing for a wide range of welding configurations.
Q: What type of programming port is available on the PSI6000 inverter?
A: The PSI6000 includes a V24/RS232 programming port for easy communication and setup.
