Lenze E82EV752K4C 8200 vector Frequency Inverter 7.5 kW 400 V

8200 vector base controller for 7.5 kW on 400 V

For 3/PE 400 V mains and a 7.5 kW (10.2 hp) motor, Lenze’s 8200 vector programme offers the Lenze E82EV752K4C. It provides 24.8 A for 60 s of overload and up to 650 Hz output. As the 8200 vector now appears under previous products at Lenze, this inverter is a legacy type; the catalogue used here dates from 11/02, so check supply and revision with us first.

Technical specifications

Reading the type code E82EV752K4C

Using the catalogue type tables: E82EV is the 8200 vector base controller, 752 corresponds to the 7.5 kW motor rating, and K4C marks the 400 V mains class. Expect a suffix after this stem: a 0xx suffix includes the EMC filter, a 2xx suffix leaves it out. Ask for the one that matches your installation.

Application and mounting guidance

The catalogue’s usual combination is E82ZAFSC010 for I/O and, if wanted, the EMZ9371BC keypad. A motor drawing more than 16.5 A continuously calls for the next size up. Raising the chopper frequency to 16 kHz limits the current to 10.7 A. A mains choke is optional and lowers the mains current to 15.0 A. Hot or high sites need derating, which the catalogue puts at 2.5% per degree above +40 degrees C and 5% per 1000 m above 1000 m. Keep 100 mm of clear space above and below and install it upright.

The catalogue’s control data apply to every size. The controller offers V/f characteristic control, linear or quadratic, as well as vector control with torque provision. Maximum torque is 1.8 times the rated motor torque for 60 s when the motor rating equals the drive rating. In sensorless speed control the setting range is 1:50 related to 50 Hz and rated torque, with an accuracy of plus or minus 0.5 percent and a minimum output frequency of 1.0 Hz. Digital setpoints are accurate to plus or minus 0.005 Hz, and the analog inputs use a 10-bit converter. At 7.5 kW these figures combine with the 16.5 A rating above.

Size ladder

Considering a different rating? The next size down is 5.5 kW (E82EV552K4C) and the next size up is 11 kW (E82EV113K4C).

Replacement checks for an existing 8200 vector installation

Most enquiries for this inverter come from plants keeping an existing machine running, so the first step is to read the full type code, suffix included, from the nameplate of the unit being replaced. Compare the motor nameplate current with the continuous output current in the table, and note the switching frequency the old drive was set to, because a higher chopper frequency reduces the available current. Record which I/O module and keypad are fitted, how the controller is wired into the machine control, and whether a mains choke or EMC filter is present in the cabinet. Saving or writing down the existing parameter set before removal shortens commissioning considerably, as the replacement then only needs the same settings re-entered and checked.

Cabinet installation

As an IP20 open-chassis device, the controller belongs inside a closed control cabinet. Mount it upright with the clearances given above, and plan cabinet ventilation or cooling around the heat loss listed in the specification table together with the other equipment in the enclosure. Use shielded motor cable and bond the shields according to the Lenze EMC instructions, keep control and power wiring separated, and make sure protective earthing is completed before any power is applied. Size the upstream protection and cables to the input current figures and to the local wiring regulations.

Commissioning and maintenance

Before the first start, check the mains voltage against the permitted range, verify motor connections and confirm that the machine can run safely if the motor turns in the wrong direction. Enter the motor data, the control mode (V/f or vector control) and the acceleration and deceleration times, then run the motor unloaded before coupling it to the load. In service, keep the cabinet clean and dry, check terminals for tightness during planned shutdowns, and watch for rising cabinet temperature or nuisance trips, which often point to blocked ventilation or a changing load. Keep a copy of the final parameter list with the cabinet drawings.

Heat and dust in Omani and GCC plant rooms

High ambient temperatures are the main concern for drives in the region. The catalogue derating of 2.5% per degree above +40 °C means a cabinet that runs hot in summer can reduce the usable output current, so consider cabinet cooling, shading of outdoor enclosures and the position of the cabinet relative to heat sources. Dust drawn in by ventilation can settle on the drive and reduce cooling, so filter maintenance should be part of routine checks, and in humid coastal areas condensation inside the cabinet during cool nights should be prevented. Where the motor load is close to the drive rating, discuss with us whether the next size up gives a safer margin under these conditions.

Datasheet source and quotation

For full tables open the attached Lenze document, an 11/02 catalogue of the 8200 vector range, and verify the data against your nameplate. Related drives are listed under AC Drives. A quotation needs the exact type code (suffix included), the mains voltage and the motor nameplate; stock and revision are confirmed before ordering.