LeyLab - Urządzenia LD

Opis

Transistor pulse converter with voltage link for the generation of a three-phase, frequency and amplitude-variable output voltage from an AC mains. This unit in conjunction with the corresponding control unit is used to assemble a frequency converter or servo amplifier.

Technical description:

Single-phase mains connection
Variable link voltage due to fully controlled B2C rectifier bridge circuitry
Three-phase inverter built with IGBT (insulated gate bipolar transistor)
Maximum switching frequency 20 kHz, resulting in good approximation of sinusoidal current as well as low noise build-up in the machine
Output short-circuit-proof, earth-fault-proof and switch-proof
Interface for connection of the control unit (25-pin sub-D socket, TTL level)
Each individual transistor can be switched on and off via the interface and is protected from damage with an interlocking device
The respective activated IGBT's are displayed via LEDs
Monitoring of the variable link voltage, temperature rise in machines and converter, excess currents in the rectifier and converter. Output of the switching status via interface and display via LEDs
Integrated brake chopper
Safe galvanic isolation (SELV) between the power component and the control unit
Output currents are detected via Hall generators. Electrically separated output via interface
Two-stage mains filter for the reduction of the line-bound interference
Three-phase motor filter for the reduction of the edge steepness of the pulse voltages at the converter output to values < 250 V/µs

Dane techniczne

Output voltage (U_A): 3 x 0...230 V
Output current (I_A): max. 3 x 8 A
Supply voltage: 200...240 V, 50/60 Hz via 4 mm safety sockets
Maximum switching frequency 20 kHz

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Urządzenia LD

Universal converter

Opis

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