Description

RELIANCE VZ3000G UVZC3455G Product Description

Product Overview

RELIANCE VZ3000G UVZC3455G is a high-performance digital AC servo drive/inverter unit belonging to the Reliance Electric VZ3000G drive family. The VZ3000 architecture combines converter, inverter and motor hardware with VZterm engineering software and the OPCU-2 operator terminal, providing closed-loop control for demanding industrial motor applications. Manufacturer-related documentation describes the VZ3000 as a vector-regulated drive using sinusoidal PWM with IPM or IGBT power devices.

The RELIANCE UVZC3455G is identified by repair and industrial automation references as a VZ3000G servo-drive unit, while secondary product sources commonly associate this model with the 400 V-class, approximately 55 kW power range. Because publicly available sources contain inconsistent electrical specifications for this legacy model, the actual nameplate should be used to confirm voltage, current and motor-rating details before replacement.

For legacy production machinery, VZ3000G UVZC3455G provides a practical replacement solution for maintaining an existing Reliance digital drive architecture. Its vector-control structure, feedback capability and engineering-tool support make it suitable for applications requiring stable speed, controlled torque and coordinated machine operation.

Technical Specifications

*The 55 kW and 380–460 VAC values are reported by secondary sources and should be confirmed against the installed nameplate. The available Reliance VZ3000 documentation confirms that the family includes 380–460 VAC common-type hardware and dedicated larger models.

Main Features and Advantages

Digital Vector Control

The RELIANCE UVZC3455G uses the VZ3000 family’s digital vector-control architecture to regulate motor speed and torque with significantly greater precision than a basic open-loop VFD. The drive generates a sinusoidal PWM waveform using IPM or IGBT power technology.

VZ3000G

High-Power Motor Control

The UVZC3455G is commonly identified as a 55 kW-class VZ3000G unit, making it appropriate for medium-to-high-power industrial machinery. Its power-conversion stage is intended for applications where stable motor operation must be maintained under changing mechanical loads.

Closed-Loop Feedback

Feedback-based operation allows the drive to continuously evaluate motor operating conditions and adjust the control output. This is particularly useful for applications requiring precise speed regulation, rapid response to load changes and coordinated operation between multiple drive sections.

VZ3000G System Architecture

The VZ3000 platform is not simply a standalone inverter. The complete system can incorporate an inverter unit, converter unit, motor and software/operator-interface components. UVZC3455G therefore functions as part of a larger drive architecture rather than as an isolated PLC module.

Engineering and Commissioning Support

VZ3000/VZ3000G systems can be configured and monitored using VZterm for Windows, while OPCU-2 provides a local operator interface. These tools support parameter adjustment, drive commissioning and troubleshooting of compatible installations.

Industrial Cabinet Integration

The drive is intended for installation inside industrial electrical cabinets with appropriate ventilation and grounding. Forced-air cooling helps remove heat generated by the power electronics during continuous operation.

Legacy Equipment Maintenance

The UVZC3455G is particularly valuable for maintaining older Reliance drive installations. Keeping an exact spare can minimize downtime and avoid replacing an otherwise functional motor, controller, feedback system and machine-control application.

Application Fields

RELIANCE VZ3000G UVZC3455G is suitable for industrial machinery requiring high-performance AC motor speed and torque control. Its vector-control architecture makes it appropriate for applications where load changes, acceleration/deceleration and speed stability directly affect product quality.

In paper and converting machinery, the drive can be applied to rollers, winders, unwinders and other rotating equipment where accurate speed coordination and stable torque are essential. It can work as part of a multi-drive system supporting synchronized production sections.

In metallurgical and material-processing equipment, the UVZC3455G can control motors used for rollers, conveyors and processing machinery. Closed-loop regulation can help maintain consistent speed when material load or mechanical resistance changes.

The drive can also be applied in packaging, printing, CNC-related machinery and automated production lines, particularly where frequent acceleration/deceleration or rapid changes in operating speed are required. Secondary references specifically describe UVZC3455G applications in CNC machinery, industrial robots, automated packaging and printing equipment.

For replacement projects, technicians should verify the complete model number, voltage class, output-current rating, motor capacity, feedback arrangement and associated converter before installation. This is especially important because available online listings for this discontinued product contain conflicting specifications.

Related Products

• VZ3000G — Digital AC drive family to which UVZC3455G belongs, providing vector-controlled motor-drive architecture.
• UAZ3455 — Related VZ3000 converter hardware used with compatible high-power drive configurations.
• UAZ3475 — Related VZ3000 converter unit for high-power drive applications.
• UVZC3407G — Related VZ3000G inverter model for a lower power class; useful where the motor rating is below the UVZC3455G range.
• UVZC3202 — Smaller VZ3000-family inverter configuration for lower-power applications.
• UVZC3203 — Related lower-power VZ3000 inverter model.
• UVZC3007 — VZ3000 inverter unit in the lower-power range and part of the broader VZ3000 hardware family.
• VZ7000 UVZ701E — Related Reliance high-performance digital AC servo-drive family for demanding motion-control applications.
• VZterm for Windows — Engineering software used to configure and troubleshoot compatible VZ3000/VZ3000G systems.