Lenze E82EV751K4C Inverter

E82: 8200 Vector series

V: Vector inverter

751: 0.75kW (75 = 0.75; the last digit 1 denotes power class)

K4: 3-phase 380~480V voltage class

C: Basic unit, without integrated EMC filter (suffix C200 indicates version with filter)

Functional Features

1. Built-in PID, flying restart, motor load loss monitoring, DC braking, 4 parameter set switching;
2. Plug-in expansion modules: PROFIBUS, CAN, INTERBUS and other fieldbus modules;
3. Protection functions: short circuit, earth fault, overvoltage/undervoltage, overtemperature, motor PTC temperature measurement, motor stall protection;
4. Cooling: natural air cooling, vertical mounting; ambient temperature -10~+55℃, derating required above 40℃; derate 5% for every 1000m elevation above 1000m.

Typical Applications

Fans, water pumps, conveyor lines, small mixers, general industrial speed regulation, HVAC, packaging machinery.

Spare Parts & Replacement Information

1. Operator panel: Lenze XT panel;
2. Brake resistor: ERBM370;
3. In-series alternative: E82EV751K4C200 (version with integrated EMC filter);
4. Discontinuation note: The 8200 Vector series is an obsolete model; i500 series is recommended for new unit replacement.

Common Troubleshooting

OC Overcurrent: Motor short circuit, damaged cable, excessive carrier frequency, short circuit in brake circuit;

OV Overvoltage: Too short deceleration time, inertial load, grid surge;

OH Overtemperature: Dust accumulation in cooling channel, high ambient temperature, insufficient top/bottom installation clearance (≥100mm clearance reserved on top and bottom);

CINH Controller Inhibit: Disconnected enable circuit at terminal 28.

Installation Notes

Max. length of shielded motor cable: 50m (8kHz); unshielded cable: 100m. Output du/dt filter is recommended for long motor wiring.

Lenze E82EV751K4C (8200 Vector 0.75kW, 380V) Application Scenarios

Core positioning: Low-power general-purpose vector inverter, suitable for light constant-torque load and simple PID speed regulation. Mostly original equipment on legacy machinery, end-of-life, mainly used for spare part replacement of old equipment.

1. Material Conveying Industry (Most Common)

Small belt conveyors, roller conveyor lines, chain feeders

Features: Sensorless vector, good low-speed torque; S-curve acceleration/deceleration for smooth start-stop to avoid material impact; multi-speed selection supported. Built-in brake transistor, external brake resistor can be fitted for inertial loads requiring fast deceleration.

Typical use: Infeed/outfeed belts of packaging lines, sorting branch lines, small hoists.

2. Packaging Machinery

Vertical form fill seal machines, labelers, small slitter machines, auxiliary drives for pillow packaging machines, conveyor drives

Advantages: Native PID, simple tension control with dancer roller; 4 parameter set switching for one-click recipe changeover for different products; expandable PROFIBUS/CAN bus for PLC integration.

Industry stock: Large quantity of European legacy packaging machines originally equipped with this drive.

3. Printing Industry (Classic OEM Model)

Auxiliary drives for Roland 700 offset presses, paper transport, delivery tray, air blowing / paper traction motors. A popular spare part model in printing machine maintenance market.

Requirements: Stable low-speed operation, flying restart (start with rotating load); inertial load from paper rolls, fast stop achieved with brake resistor.

4. HVAC & Fluid (Fan & Pump)

Small centrifugal fans, duct exhaust fans, booster pumps, metering pumps

Built-in PID for constant pressure / flow / temperature control; quadratic V/F mode for energy saving; flying restart for fans still rotating after power loss.

Note: Limited 0.75kW power rating, only for small fans and pumps.

5. Textile Machinery

Small spinning auxiliary machines, fabric traction rollers, guide rollers, carding auxiliary rollers, simple unwinder/rewinder

Advantages: Constant torque at low speed, low noise at 16kHz carrier frequency to reduce fabric flutter; multi-speed switching for different fabric types.

6. Woodworking, Food & Pharmaceutical Standalone Small Machines

Sanding auxiliary rollers for woodworking, small mixers, mixing tanks, food conveyors, pharmaceutical bottle feeding mechanisms

Operating conditions: Continuous low-speed operation, frequent start-stop, stable torque requirement; cabinet dust protection required for dusty environments.

7. Other Niche Applications

Automatic revolving door drive, test bench motor drive, small stirring equipment, laboratory speed regulation platform.

✅ Operating Boundary for Selection

1. Motor: 3-phase asynchronous motor 0.75kW; 380~480V 3-phase power supply
2. Load type: Light constant-torque load preferred; 180% short-time overload for max. 60s
3. Not suitable: Heavy impact loads, high-speed servo positioning, high-precision synchronous control requiring encoder closed loop (8200 Vector is sensorless vector)
4. Installation: IP20 rating, must be installed inside control cabinet, cannot be exposed directly on site.

⚠️ Industry Status

This model has been discontinued by the manufacturer for many years. Units available on market are mostly surplus stock or used reclaimed drives. Not recommended for new projects; Lenze i500 series is preferred for replacement.

I can prepare a E82EV751K4C to i500 replacement selection & parameter migration comparison table if needed.

Method to Verify Suitability of Lenze E82EV751K4C for Your Application

Core premise: This obsolete 8200 Vector 0.75kW sensorless vector inverter is only suitable for spare part replacement on legacy machines; not recommended for new project procurement.

Verification covers four aspects: load power & torque, process control requirements, environmental & installation conditions, project type (new retrofit / maintenance spare).

1. Power & Load Matching (Primary Check)

✅ Acceptable Conditions

1. Rated power of driven motor: 3-phase 0.75kW, 380V asynchronous motor; motor rated current ≤1.9A (inverter rated output current)
2. Short-time overload requirement: Max. 180% overload for up to 60 seconds. Suitable for applications with mild start-stop shock and short peak load.
3. Compatible load types:

✅ Recommended: Light constant-torque loads (conveyor rollers, traction rollers, small mixers), variable torque loads (small fans, small pumps)

✅ Inertial loads: Paper rolls, conveyor belts, fast stop with external brake resistor (onboard brake transistor)

❌ Not Suitable

Motor power >0.75kW; continuous heavy load, frequent heavy impact loads (crushers, stamping mechanisms)

Continuous overload exceeding 180% for extended duration

Quick check formula: Motor rated current ≤ inverter rated output current 1.9A

1. Process Control Requirement Check

✅ Processes compatible with this inverter

1. Speed regulation: 0~650Hz speed range, sensorless vector without encoder, decent low-speed torque; no high-precision position synchronization required
2. Logic functions: Multi-speed selection, built-in PID closed loop (pressure/flow/simple tension), flying restart, DC braking, 4 parameter set switching (multi-product recipe)
3. Communication: Expandable PROFIBUS / CAN bus modules for PLC connection; basic DI/DO analog terminal control
4. Start-stop: S-curve acceleration/deceleration to reduce mechanical shock, ideal for conveying and packaging auxiliary equipment

❌ Unsuitable Applications

1. Applications requiring encoder closed loop, high precision positioning, multi-axis electronic cam, synchronous control (functions of servo or high-end vector drives, 8200 Vector does not support encoder interface)
2. High-precision tension unwinding/rewinding, main drive of high-speed precision printing machines
3. Operating conditions requiring fast dynamic response and frequent acceleration/deceleration under heavy load

III. Environmental, Installation & Electrical Conditions

✅ Acceptable

1. Power supply: 3-phase AC320~550V, 45~65Hz
2. Installation: Inside control cabinet (IP20); full power at ambient temperature -10℃ ~ +40℃, derating required at 40~55℃; elevation ≤1000m, derate above 1000m
3. Dust: Cabinet dust protection required; not for open-air, high humidity, corrosive gas environments
4. Motor cable: Max. 50m shielded cable (8kHz); output du/dt filter required for long motor cables

❌ Not Acceptable

Direct outdoor installation, high humidity, strong corrosion, heavy metallic dust environment

Excessively long motor cable without output filter

1. Project Type Assessment (Critical)

✅ Suitable: Spare part replacement, old equipment maintenance

Original machine is factory fitted with E82EV751K4C. Direct same-model replacement, parameters/program can be copied without mechanical or electrical control modification.

Drawback: Available stock is surplus or used, unstable lead time, no original manufacturer warranty.

❌ Not Recommended: New projects, complete machine retrofit

New projects should adopt Lenze i500 series (i510 / i550), better performance, full new warranty, stable spare part supply.

✅ Quick Self-Check Checklist (Tick boxes)

Motor is 3-phase 380V asynchronous motor, rated power 0.75kW, rated current ≤1.9A

Max. short-time load does not exceed 180% and lasts less than 60 seconds

Only speed regulation and simple PID required, no encoder closed-loop positioning

Inverter mounted inside control cabinet, ambient temperature ≤40℃

Application is legacy equipment maintenance spare replacement, not new machine development

✅ All boxes ticked: E82EV751K4C can be used;

❌ Any box fails: Not recommended, select different power rating or switch to i500 and other new models.

Supplementary: Replacement Selection Reference

If requirements are not met, Lenze i500 series (i510 / i550, 0.75kW, 380V) is preferred. Parameter migration supported, more bus options, optional integrated EMC filter, new units readily available.

Lenze 8200 Vector (E82EV) Full Model List

Series full name: E82EV = 8200 Vector vector inverter, IP20 built-in unit, 0.25~90kW, discontinued

Suffix explanation:

K2: Single/3-phase 230V; K4: 3-phase 380~480V

C: Small power housing (0.25~11kW); B: High power housing (15~90kW)

C200 = Version with integrated EMC filter; base C version without EMC filter (E82EV751K4C in your query is base version without filter)

1. 230V Class (K2, single-phase input, 0.25~7.5kW)

1. 400V Class (K4, 3-phase 380~480V, 0.55~11kW, C housing)【Focus, E82EV751K4C belongs to this group】

III. 400V Class (K4, 3-phase 380~480V, 15~90kW, B housing)

✅ Derivative Variants (Same power, different suffix)

1. C200 version: Add C200 suffix for same power model, integrated EMC filter, example: E82EV751K4C200
2. Safe-Standard safe torque off version: suffix 4xx, e.g. E82EVxxxKxC400 (available for 3~11kW)
3. Coated PCB version: PCB conformal coating for humid and dusty environments, suffix xxx1
4. E82DV / E82CV: Same 8200 Vector series, different mounting construction:

E82DV: Through-panel mounting

E82CV: Cold plate cooling type (base plate heat dissipation), power range same as E82EV

📌 Optional Accessories List (E82Z series accessories)

E82ZAFSC010: Standard I/O terminal module (E82EV main unit requires this I/O board for operation)

E82ZBC: Basic operator panel; EMZ9371BC: XT advanced panel

E82ZAFPC010: Profibus DP communication module

E82ZAFCC010: CANopen communication module

E82ZLxx: Line reactor

ERBM / ERBD: Matching brake resistor

⚠️ Remarks

1. The entire 8200 Vector series has been discontinued by OEM. i500(i510/i550) is recommended for new projects;
2. Small power E82EV (0.25~11kW) housing size increases with power rating, all IP20; B housing for 15kW and above with larger dimension;
3. C and C200 versions of same power have identical electrical performance, difference only in EMC filter. Interchangeable for spare replacement, EMC compliance needs to be considered.