Technical Specifications Breakdown
Key parameters for the EVS9321-EI are listed below for quick reference:
| Feature | Specification |
|---|---|
| Manufacturer | Lenze |
| Product Line | Series 9300 |
| Part Number | EVS9321-EI |
| Description | Servo Controller |
| Rated Mains Voltages | 400V and 480V |
| Mains Voltage Range | 320 to 528VAC |
| Mains Voltage Type | Three Phase |
| Mains Frequency Ratings | 50/60 Hz |
| Operating Temperature | 0 to 40 degrees Celsius without derating |
| Storage Temperature | -25 to 55 degrees Celsius |
| IP Rating | IP20 |
| Variant | Standard |
| Rated Motor Power | 0.5 HP |
Industry Applications
The EVS9321-EI suits applications that demand consistent torque and speed regulation. Typical uses include conveyor systems, packaging machinery, and material handling equipment. Its 0.5 HP rating covers light-duty axes, such as small indexing tables or feed drives. The wide mains voltage range (320 to 528VAC) allows installation in regions with fluctuating grid conditions, reducing the risk of downtime due to voltage sags.

Installation & Setup Guidance
When installing the controller, ensure the ambient temperature stays within the 0 to 40°C range without derating. Mount the unit in a clean, dry enclosure that meets IP20 protection—this guards against solid objects larger than 12 mm but does not protect against water. Verify that the incoming three-phase supply matches the rated mains voltages (400V or 480V) and the frequency is set to 50 or 60 Hz. Use proper cable sizing and follow local electrical codes. Always disconnect power before making connections.
Maintenance & Reliability
Routine inspection helps maintain long-term reliability. Check for dust accumulation on the heatsink and fan (if present) every few months, as blocked airflow can raise internal temperatures. Confirm that all terminal screws remain tight to prevent loose connections. Since the unit is IP20, avoid exposing it to moisture or conductive dust. Periodically verify that the operating temperature stays below the 40°C threshold to prevent derating.
Servo Controller for Reliable Motion Control
The Lenze EVS9321-EI is a servo controller from the Series 9300, engineered for industrial motion control applications. It delivers dependable performance for light to moderate loads, making it a practical choice for machinery that requires precise speed and position control. This unit operates with three-phase mains voltage, offering flexibility across different plant installations.

Compatibility & Integration
As a standard variant, the EVS9321-EI integrates easily into existing control cabinets. It is part of the Lenze Series 9300 family, so it shares common mounting and wiring practices with other series components. The three-phase input simplifies connection to standard industrial power distribution. For multi-axis systems, ensure the DC bus and control signals are properly coordinated with other drives.
Selection Guide & Purchasing Advice
When selecting a servo controller, match the rated motor power (0.5 HP) to your actual motor load. Verify that your supply voltage falls within the 320 to 528VAC range and that the frequency is 50 or 60 Hz. The IP20 rating means you must provide additional enclosure protection if the environment is dusty or wet. For a reliable replacement or new installation, contact AutoDCSTech to confirm availability and lifecycle status. AutoDCSTech offers genuine industrial automation parts with fast worldwide shipping.
Please verify current lifecycle status and availability with AutoDCSTech before ordering.
Availability & Condition at AutoDCSTech
| Part Number | EVS9321-EI |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | Germany |
Datasheet & Downloads
Specification sheet for EVS9321-EI. For lead time, condition and price, contact our team.
