SCS UFS-22 Static Control System Rated current 22

SCS UFS-22 Static Control System

Product Details

GENERAL DESCRIPTION

The UFS braking units are designed to be used with any frequency inverter or converter equipped with BUS-DC. These units can dissipate, through a static chopper, the energy coming from the load during the braking phase. The product family has UL Certification for NAFTA market use.

MAIN FEATURES

User selectable braking threshold

Self powered from DC-BUS

Master-Slave functionality

Internal electro-mechanical thermal relay with insulated auxiliary

contacts for braking resistor protection.

Starndar kits of braking resistors

Braking voltage Standard (SW1-4 = ON): 745

Maximum peak current IP (A):34

Maximum instantaneous power Pmax (KW): 25

Standard Ith (A):7÷11

RF(Ω) min.: >22

TECHNICAL SPECIFICATIONS

Tolerance on the intervention voltage: 0.8%

Hysteresis about 2%

Ambient temperature 0°C ÷ 40°C

Maximum braking time = 10s

Protection degree IP20

Thermal guard with manual / automatic reset

DC supply voltage from 450Vdc to 746Vdc (234Vdc÷373dc for J version)

Maximum voltage 800Vdc (400Vdc for J version)

Main supply voltage from 380Vac to 480Vac +/-10%. (200Vac to 240Vac ±10% for J version)

About SCS

SCS Static Control Systems has been successfully operating in the industrial automation field since 1977. In the beginning, the company designed and manufactured static electrical controls for automated machines and systems and, starting in 1978, it began designing and manufacturing analog converters for DC-powered motors. Thanks to its technical expertise, in 1986 SCS was chosen by Mitsubishi Electric as the sole distributor for Italy. In 1994, the company began manufacturing analog drives for trapezoidal brushless motors and in 1997, it designed and manufactured the first family of digital drives for sinusoidal brushless motors. In just a few years, the sinusoidal vector converter became the company’s leading product and in 2005, a new generation of brushless motor drives was launched to upgrade the control section of the motor. The recent release of third-generation brushless servo drives crowns the 10 years evolution of the product line.

SCS operates in Italy and abroad currently offering a wide services portfolio. From analog and digital systems design, based on the expertise of its R&D department, to system integration design and deliver, based on the experience and know-how of its Engineering Department. The corporate mission is focused on quality, flexibility and the ability to assist the customer through all phases of machine realisation. After-sales service and technical support have also always been a significant part of corporate policy and have become well-known and appreciated by all operators in the industry.

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