Products Description
Reliance Electric UAZ34553475 VZ3000 Digital AC Servo Drive Unit
The Reliance Electric UAZ34553475 belongs to the VZ3000 series high‑performance digital AC servo drive, adopting advanced vector control technology for induction motors. It delivers precise speed and torque regulation for heavy‑duty industrial equipment, and forms a complete drive system together with control boards and power modules.





This discontinued rack‑mounted servo unit is equipped with built‑in cooling fans and comprehensive fault monitoring circuits. Since original manufacturing has been stopped, it is widely supplied as aftermarket spare parts for repairing and upgrading legacy production lines in metallurgy, paper‑making and printing industries.
Main Specifications
- Brand: Reliance Electric; Model:UAZ34553475, Series:VZ3000; Type:Digital AC Servo Drive
- Input Power:3‑phase 400V AC, integrated power rectifier and IGBT inverter section
- Control Mode:High‑performance vector control, closed‑loop speed and torque control
- Overload Rating:150% overload for 60 seconds, 180% short‑time overload capacity
- Cooling Method:Internal forced air cooling with high‑reliability cooling fan
- Diagnostics:Built‑in drive fault detection, status LED indicators and fault log storage
- Operating Temperature:0℃ ~ +50℃, designed for heavy industrial cabinet installation
- Installation:Vertical cabinet mounting, modular structure for easy maintenance and replacement
Core Functions
- Implement high‑precision vector control to drive three‑phase induction servo motors.
- Adjust output voltage and frequency dynamically to maintain stable torque under variable loads.
- Continuously monitor current, temperature and operating status and trigger fault alarms.
- Realize signal interaction with upper‑level controllers through dedicated drive interfaces.
- Provide reliable heavy‑duty driving power for continuous cyclic production equipment.
- Store fault history data to facilitate on‑site maintenance and failure analysis.
Application Scenarios
- Heavy‑load speed regulation for metallurgical rolling mills, paper machines and printing machinery.
- Spare drive replacement and routine maintenance of Reliance VZ3000 automation racks.
- Automation reconstruction and reliability upgrade of legacy heavy‑industry control systems.
- On‑site troubleshooting and faulty servo power unit replacement projects.
- Spare‑parts stocking for system integrators and industrial drive maintenance contractors.
- Global aftermarket spare supply for technicians maintaining obsolete Reliance VZ3000 drive hardware.
FAQ
- Q: What motor type does UAZ34553475 VZ3000 drive?
A: It is designed for three‑phase induction motors and adopts vector control algorithm. - Q: Is this servo drive still in original production?
A: The original production has been discontinued, only tested surplus and refurbished spare units are available. Q: Does it need a separate regulator control board?
A: Yes, it must cooperate with matched VZ3000 regulator board to complete the whole control function.

Tags: Reliance Electric UAZ34553475 VZ3000 Digital AC Servo Drive Unit
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