PSI 6300.740L1

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The Bosch Rexroth Indramat PSI 6300.740L1 Frequency Inverter is a part of the PSI Frequency Inverters series, featuring IP 20 protection. This inverter boasts a programming interface through an isolated V24/RS232 connection and supports a maximum of 256 individually callable programs. It operates from 0 to +55 degrees Celsius.

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Product Description:

The PSI Frequency Inverter PSI 6300.740L1 from Bosch Rexroth enables operation between 400 V to 480 V with either 50 Hz or 60 Hz supply frequency. The frequency inverter accepts ground-based TN or TT line voltages as part of its operational parameters. The output current of this inverter reaches 800 A maximum during operation while its continuous thermal current stays at 110 A.

The combination of PSG 3100 transformer allows the PSI Frequency Inverter PSI 6300.740L1 to generate 36 kA secondary current output. A metal oxide varistor stands as the protective element for overvoltage situations. The frequency inverter uses a steady 1 kHz clock frequency to serve industrial electricity systems that need significant current storage capability. It uses air cooling equipped with a Bosch fan cowl that supports operation within ambient temperatures of up to 45°C. A dedicated internal regulatory system maintains the temperature balance of the system. The frequency inverter enables safe operation under 55°C maximum ambient temperatures while storing it correctly between -25°C and +70°C. The PSI Frequency Inverter PSI 6300.740L1 meets Class F per DIN 40040 humidity standard by withstanding 90% relative humidity at 20°C and 50% relative humidity at 40°C as long as condensation stays absent. The PSI Frequency Inverter holds an IP 20 protection classification which enables its use in modular enclosures and switchgear cabinets with an IP54 rating.

The PSI Frequency Inverter PSI 6300.740L1 has a power drain inside the enclosure of 69 W and accepts 50 mm² conductors with 35 mm² wires through 90mm² box terminals. The frequency inverter operates from 19 V to 30 V with its control supply set at 24 V DC. It complies with EN 61131-2 standards. This frequency inverter integrates a weld timer feature along with the capability to connect through serial-parallel and Fieldbus I/O interfaces.

Altitude range
0 to 2000 m above sea level
Analog output (X2)
0 to 10 V, max. 20 mA; 0 to 20 mA; 4 to 20 mA (<=500 Ω)
Backup battery
Lithium AA 3.6 V, battery life approx. 2 years
Climatic category
3K3 (to EN60721-3-3)
Degree of protection
IP20
Fieldbus options
PROFIBUS-FMS, INTERBUS-PMS, Ethernet 10 MBit
Main switch trigger contacts
24 VDC max 6 A or 42 VAC max 1 A
Number of programs
Up to 256
Operating temperature
0 to +55 °C
Operating voltage
24 V DC +20%/-15%, max. ripple +/-5%
Programming interface
RS-232 V24 isolated (9-pin D-Sub at X1)
Rated current at 24 V
Approx. 1.5 A (excl. I/O module & X5 consumers)
Starting current
Approx. 2.0 A for 10 ms (excl. I/O module & X5)
Storage/transport temperature
-25 to +70 °C

Frequently Asked Questions about PSI 6300.740L1:

Q: Why is the EN 61131-2 compliance significant in PSI 6300.740L1?

A: EN 61131-2 compliance in PSI 6300.740L1 ensures reliable digital I/O behavior, essential for automation and PLC-based systems.

Q: What is the benefit of using 90mm² box terminals in PSI 6300.740L1?

A: The 90mm² terminals in PSI 6300.740L1 support thick conductors, reducing resistance and supporting high current flow for robust power delivery.

Q: Why is Fieldbus I/O integration important in PSI 6300.740L1?

A: Fieldbus I/O in PSI 6300.740L1 allows efficient and flexible communication in distributed control systems, improving system integration and diagnostics.

Q: How does the weld timer function benefit PSI 6300.740L1 in automation systems?

A: The weld timer in PSI 6300.740L1 allows timed welding sequences in automation, offering precise control in high-repetition industrial applications.

Q: What is the function of the internal regulatory system in PSI 6300.740L1?

A: The internal regulatory system in PSI 6300.740L1 continuously adjusts cooling and thermal load to stabilize internal temperatures under load.


Internal Product Review

  • ‘‘The Bosch Rexroth PSI Frequency Inverter PSI 6300.740L1 stands out for its 36 kA secondary current output. It has robust thermal current handling of 110 A, serial-parallel connectivity, IP20 protection, and a 45°C operational limit. It is a technically reliable choice for high-performance electrical environments.’’

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