Product Description

Lenze EVS9323-EK — 9300 Series Servo Cam Profiler, 1.5 kW

In high-speed packaging, printing, and converting lines, the relationship between drive motion and material position isn't just "run fast and stop." It's a precise choreography — an axis that must accelerate, dwell, decelerate, and index according to a defined profile, repeated reliably thousands of times per shift. That's the problem the EVS9323-EK was built to solve.

This is the Servo Cam Profiler variant of the Lenze 9300 series servo inverter — a 1.5 kW, 400/480V AC built-in unit that replaces physical cam discs, pull rods, and mechanical linkages with a fully electronic cam profile stored and executed inside the drive itself. Genuine new, one piece in stock.

Technical Specifications

Parameter	Value
Catalog Number	EVS9323-EK
Series	Lenze 9300
Variant	Servo Cam Profiler (EK)
Design	Built-in Unit (Panel Mount)
Rated Motor Power	1.5 kW (2 HP)
Mains Voltage	3-phase AC 320–528V (VN = 400/480V)
Mains Frequency	50/60 Hz
Mains Current (without filter)	5.5 A
Mains Current (with mains filter)	3.9 A
Output Current @ 8 kHz	3.9 A
Output Current @ 16 kHz	2.9 A
Overcurrent Capability	200% for dynamic applications
Cam Profiles Storable	Up to 8
Feedback Systems	Resolver, SinCos encoder, incremental encoder
Enclosure Rating	IP20
Operating Temperature	0 to +40°C (without derating)
Storage Temperature	−25 to +55°C
Transport Temperature	Up to +70°C
Humidity Class	F (max 85% relative humidity, no condensation)
Vibration Resistance	Germanischer Lloyd general conditions
Dimensions (W × H × D)	97 × 350 × 250 mm
Weight	Approx. 5 kg
Certifications	CE, UL 508, UL-508c

What the Cam Profiler Variant Actually Does

The suffix -EK identifies this unit as the Servo Cam Profiler model within the 9300 family. Unlike the standard servo inverter variants, the EK integrates a complete cam profile engine directly into the controller — no separate motion controller, no external PLC cam module required.

Up to 8 independent cam profiles can be stored and recalled on demand during production. Switching between profiles happens without stopping the machine, which makes product changeovers dramatically faster compared to mechanical cam systems where the physical cam disc has to be swapped out. Each profile defines the exact motion relationship between a master axis (real or virtual) and the controlled output axis across the full 360° of master travel.

Additional features embedded in the cam profiler include:

Electronic cam switches — output signals triggered at defined master positions within the cam cycle
Marker-controlled cam start — synchronization to a physical registration mark or sensor, keeping the motion phase-locked to the material
Stretching, compression, and offset — X-axis (position) and Y-axis (velocity) adjustments to the cam profile without rewriting the full profile from scratch
Welding bar control — a dedicated function for maintaining constant dwell time at variable production speeds, specifically designed for heat-sealing applications
Virtual master — allows the drive to follow a software-generated master reference rather than a physical encoder signal
Clutch replacement / overload clutch simulation — electronic equivalent of a mechanical slip clutch for torque-limiting and soft engagement

Two Switching Frequencies, One Drive

The output current rating changes with the selected PWM switching frequency. At 8 kHz, the drive delivers 3.9 A — providing maximum torque output for more demanding load cycles. At 16 kHz, current is derated to 2.9 A, but the higher switching frequency reduces audible motor noise and iron losses, which can matter in noise-sensitive or thermally constrained installations. The choice between them is made during commissioning based on the application's priorities.

Feedback System Flexibility

The EVS9323-EK supports three encoder types: resolver, SinCos encoder, and incremental TTL encoder. Resolvers are the most robust choice in high-vibration or high-temperature environments; SinCos encoders provide higher position resolution per revolution for demanding servo accuracy requirements. The ability to accept all three without hardware modification gives system designers flexibility when pairing the drive with motors from different suppliers or when retrofitting existing machinery.

Built-In Unit: What That Means for Installation

"Built-in unit" means the EVS9323-EK is designed for installation inside a control cabinet, not as a standalone enclosure. The IP20 rating protects against accidental finger contact with internal parts, but requires the surrounding cabinet to provide additional protection against dust, moisture, and mechanical impact. The 97 mm wide, 350 mm tall body fits comfortably in standard industrial enclosures, and panel mounting keeps the footprint clean.

Where This Drive Gets Deployed

The EVS9323-EK's cam profiler function addresses a specific set of motion control challenges found most often in:

Horizontal flow wrap and vertical form-fill-seal packaging machines
Folding carton and sleeve application equipment
Rotary die cutting and kiss-cutting lines
Web printing and label converting machines
Pick-and-place and transfer systems with indexing motions
Heat sealing and welding bar applications in pouch and sachet lines

Frequently Asked Questions

Q: What makes the EVS9323-EK different from other EVS9323 variants?

A: The -EK suffix identifies the Servo Cam Profiler variant. All EVS9323-xK models share the same power stage (1.5 kW, 400/480V AC) but differ in the embedded technology function. The EK variant includes the full cam profiler engine — capable of storing up to 8 cam profiles, electronic cam switching, marker-based synchronization, and dedicated functions for welding bar control. Other variants such as -ES (standard), -ET (Servo PLC), and -EP (positioning) contain different embedded motion functions instead.

Q: How many cam profiles can be stored, and can they be switched during production?

A: Up to 8 complete cam profiles can be stored in the drive. Profile switching is designed to occur without stopping the machine — the transition between profiles happens seamlessly during the master cycle, which is the key advantage over mechanical cam systems that require physical cam changes during downtime.

Q: What feedback devices are compatible with the EVS9323-EK?

A: The drive accepts resolvers (2-pole, 10V, 4 kHz), SinCos encoders, and incremental TTL encoders. The feedback type is selected during parameter setup. Both the resolver and encoder cables are monitored for open circuit with fault indication.

Q: What is the difference in output current between 8 kHz and 16 kHz switching frequency?

A: At 8 kHz switching frequency, the rated output current is 3.9 A. At 16 kHz, it is derated to 2.9 A. Higher switching frequency reduces motor noise but reduces available continuous current. The appropriate frequency depends on whether torque capacity or low acoustic noise takes priority in the application.

Q: Does this drive require an external mains filter?

A: An external mains filter is not mandatory but is recommended for CE-compliant EMC installations. Without a filter, mains current draw is 5.5 A; with a mains filter, it reduces to 3.9 A and the unit meets CE EMC requirements for typical drive systems.

Q: What operating temperature range does the EVS9323-EK support?

A: Full rated operation is guaranteed from 0°C to +40°C. Above 40°C, the drive can continue to operate with output current derating. Storage temperature range is −25°C to +55°C.

Q: Is the EVS9323-EK UL listed?

A: Yes. The 9300 series carries UL 508 and UL-508c approvals, enabling installation in UL-approved systems in North American markets.

Q: What does "Genuine New 1pc" mean for this listing?

A: The unit is factory-new, original Lenze manufacture, unused and in original packaging. One piece is available in current stock, ready for immediate dispatch.

EVS9323-EK Genuine 1PC New Lense Inverter EVS9323EK Servo Controller