Lenze Inverter EVF9321 Series Manual

The Lenze Inverter EVF9321 Series is designed for efficient control of three-phase asynchronous motors. It offers a wide range of features including advanced motor control algorithms, integrated safety functions, and various communication options. This manual provides essential information on installation, configuration, operation, and troubleshooting of the EVF9321 series inverters.

1. Features at a Glance 2. Installation 3. Configuration 4. Specifications 5. Controls and Settings 6. Connecting to Motors 7. Operating Modes 8. Safety Features 9. Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key features include: Compact design, high efficiency, integrated safety functions, and flexible communication interfaces (CANopen, EtherCAT, etc.).

Feature	Description
Compact Design	Space-saving installation with a small footprint.
High Efficiency	Optimized energy consumption for reduced operational costs.
Integrated Safety Functions	Includes Safe Torque Off (STO) and other safety features.
Flexible Communication	Supports various fieldbus protocols for easy integration.
Advanced Motor Control	Improved performance with vector control and PID regulation.

Installation

Ensure proper mounting and ventilation for optimal performance. Follow these steps for installation:

Mount the inverter on a stable surface, ensuring adequate airflow.
Connect the power supply and motor according to the wiring diagram.
Ensure all connections are secure and insulated.
Power on the inverter and check for proper operation.

WARNING! Ensure the inverter is properly grounded to prevent electrical hazards.

Configuration

Configure the inverter settings using the built-in keypad or via software. Follow these steps:

Access the configuration menu using the keypad.
Set motor parameters such as rated voltage and current.
Adjust control parameters for desired performance.
Save the configuration and exit the menu.

CAUTION! Incorrect settings may lead to motor damage.

Specifications

Input Voltage: 200-240V AC, 50/60Hz.
Output Voltage: 0-240V AC.
Power Range: 0.25 kW to 15 kW.
Control Method: V/f control, vector control.
Protection Class: IP20.
Operating Temperature: -10°C to +40°C.

Controls and Settings

The inverter features a user-friendly keypad for easy operation. Key controls include:

Keypad: Start, Stop, Reset, and Parameter settings.

LED Indicators: Status, Fault, and Power indicators for easy monitoring.

Connecting to Motors

Follow these steps to connect the inverter to a motor:

Ensure the inverter is powered off before making connections.
Connect the motor leads to the inverter output terminals.
Verify the motor specifications match the inverter settings.
Power on the inverter and test the motor operation.

Tip: Always refer to the motor's manual for specific wiring instructions.

Operating Modes

The inverter supports various operating modes including:

Speed Control Mode: For precise speed regulation.
Torque Control Mode: For applications requiring constant torque.
Position Control Mode: For servo-like applications.

WARNING! Ensure the correct mode is selected for your application to avoid damage.

Safety Features

The EVF9321 series includes several safety features:

Safe Torque Off (STO): Prevents unintended motor operation.
Overcurrent Protection: Protects against excessive current draw.
Overtemperature Protection: Shuts down the inverter to prevent overheating.

Maintenance

Regular maintenance is essential for optimal performance:

Check for dust accumulation and clean the inverter regularly.
Inspect connections and wiring for wear or damage.
Ensure proper ventilation to prevent overheating.

Regulatory Information

The Lenze Inverter EVF9321 Series complies with international safety and electromagnetic compatibility standards. For detailed information, refer to the product documentation.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Inverter does not start	Power supply issue	Check power connections and fuses.
Motor does not run	Incorrect wiring	Verify motor connections and settings.
Overheating	Poor ventilation	Ensure adequate airflow around the inverter.
Fault indicator on	Fault condition	Refer to the manual for fault codes and corrective actions.

Reset: Use the reset function in the menu if available.

Service: Contact Lenze support for assistance.