Product Overview

Feature

■ Hydraulic Motor Drive Easy to install and use, the control mode, oil channel and electric circuit structure of the original equipment does not need to be changed.

■ The driver is provided as standard configuration with an energy saving interface card for the injection molding machine, a standalone flow signal input and a pressure electric signal input, whose signal specifications are: 0~24V/0~2A.

■ Strong current shock resistant capacity and fine vector control feature guarantee continuous, stable and trip-free operation. The Servo Feature Energy Saving Cabinet Inverter can run for 0.5 seconds under 200% loads.

■ Super low speed on-load and quick speed regulating capability, 0.5Hz start torque is 180%, only 0.1 seconds are needed for the motor to accelerate to the rated rotating speed.

■ High power factor output, reactive power loss is lowered, and there is no high current shock under soft start.

■ The performance is great when working together with electric-driven injection molding machine, the output torque is big and accurately positioned under speed sensorless vector control mode.

■ Provide customized technological curve, when the mould is changed, driver parameters do not need to be changed, thus realize the easy memory of technological curve.

■ Wide range torque output, the motor torque output is stable within the setting ranges of pressure and flow, thus guarantee the quality of processed workpiece.

■ State-of-the-art power module driving mode is employed to eliminate the interference to the injection molding machine’s control loop and sensor by the driver.

Model Explanation

ProductCatalog

VY−JY−4T□□□G ; Three-phase 400V Constant torque/heavy-duty application

Technical Specifications

Motor Wiring

It is forbidden to short circuit the Servo-driven Hydraulic Machine VFD output terminals or short circuit to ground, otherwise the internal components of the variable frequency inverter will be damaged.

Do not short circuit the output cable to the universal variable frequency drive enclosure, otherwise electric shock may happen.

It is forbidden to connect the output terminal of the inverter to the capacitor or LC/RC noise filter with phase lead, otherwise, the internal components of the inverter may be damaged.

When contactor is installed between the inverter and motor, it is forbidden to switch on/off the contactor when the V&T Vfd Drive is running; otherwise, large current will flow into the industrial inverter, triggering the inverter protection action.

Length of cable between the 3 Phase Frequency Converter and motor. If the cable between the frequency inverter and the motor is too long, the high−order harmonic leakage current of the output end will cause adverse impact on the Single Phase To 3 Phase Inverter Converter and the peripheral devices. Output AC reactor should be installed if the motor cable is longer than 100m, Refer to the following table for the switching frequency setting.

Terminal Wiring Diagram

Installation dimension

11KW～75KW power class

90KW and above power class

Product outline, mounting dimension, and weight

Applications

Energy Saving Drive VFD Representative Industry

As an advanced China Hydraulic Drive System Manufacturers,The use of V&T frequency drive (VFDs): a VFD is used to regulate the speed and torque of the Motor according to the variation of the load in order to improve the Motor energy efficiency. The technology of AC-VFD-AC drives power overcomes the small range and poor speed adjustment performance. Shenzhen V&T Technologies Co.,Ltd. AC servo drives is suitable for Injection Molding Machine Motor Drive, Air compressor, Die casting machine speed drive, Energy-saving industry etc.