Schneider frequency converter​ ATV12H018M2

The **ATV12H018M2** of Schneider Electric is a compact frequency converter with single-phase input, belonging to the **ATV12 series**. It is mainly used to control three-phase asynchronous motors with a power of 0.18kW (0.25HP), and is suitable for industrial automation and civil equipment. The following is its core information:

 I. Technical Specifications

1. **Electrical Parameters*Siemens converter 6SE6440-2UD42-0GA1*

   - **Input Voltage**: Single-phase 200-240V AC (±15%~+10%), frequency 50/60Hz.

   - **Output Capacity**: Suitable for 0.18kW motor, rated current 1.4A, output frequency range 0.5~400Hz, supporting three-phase 200-240V output.

   - **Control Mode**: V/F closed loop, sensorless flux vector control, integrated Modbus RTU communication interface (RJ45 and RS485), supporting quick parameter configuration.

   - **Protection Level**: IP20 (without cover), adaptable to the ambient temperature from -10℃ to +50℃ (a derating of 2.2% per ℃ is required at +60℃).

2. **Design Features**

   - Built-in C1 level EMC filter, meeting the electromagnetic compatibility requirements without additional installation.

   - Compact structure (dimensions 143×72×102.2mm, weight 0.7kg), supporting rail installation (accessory VW3A9804 is required).

   - Full-coated circuit board design, adaptable to harsh environments such as high dust and humidity.

 II. Application Scenarios

- **Industrial Field**: Textile machinery, printing and packaging equipment, logistics conveying lines, small fans and pumps (such as centrifugal water pumps).

- **Civil Equipment**: Washing machines, ventilation systems of commercial buildings and other simple mechanical controls.

- **Typical Loads**: Compressors, conveyors, positive displacement pumps, mixers, etc., supporting constant torque applications.

 III. Supply and Purchase in the US Market

1. **In-stock Channels**

   - **hebei china Electric*: There are 10 pieces in stock, unit price $wa: 86-13811255435, and shipment is supported within 3-4 working days.

2. **Certification and Compliance**

   - Certified by CSA, UL, and CE, compliant with RoHS and REACH standards.

   - Attention should be paid to the warning of Proposition 65 in California, USA, which may involve chemical substance risks.

 IV. Technical Support and Documents

- **Official Resources**: The official website of Schneider Electric provides CAD drawings (such as ATV12H018M2_2D) and operation manual for download.

- **Installation Guide**: The VW3A9804 accessory is required for rail installation, supporting plug-and-play configuration.

- **Troubleshooting**: Built-in thermal detection, overcurrent protection, and support for motor current spike monitoring.

 V. Precautions

- **Harmonic Suppression**: It is recommended to use it with a reactor to reduce the harmonic interference of the power grid and protect the frequency converter.

- **Environmental Requirements**: Avoid using it in environments with high humidity, high altitude (>1000 meters) or vibration.

The control mode of the ATV12H018M2 frequency converter is flexible and diverse, suitable for different load requirements. The following are its core control modes and features:

 I. Basic Control Modes

1. **V/F Control (Voltage/Frequency Ratio Control)**

   - **Features**: The most basic control mode, realizing the speed regulation of the motor by fixing the ratio of voltage to frequency (such as U/f = constant).

   - **Application Scenarios**: Suitable for quadratic torque loads such as fans and pumps, and scenarios where precise speed control is not required.

   - **Advantages**: Simple control, high stability, and the starting performance can be optimized through parameter adjustment.

2. **Sensorless Flux Vector Control (SVC)**

   - **Features**: Based on the mathematical model of the motor, achieving more precise control by calculating the excitation component and torque component of the stator current.

   - **Application Scenarios**: Suitable for constant torque loads (such as conveyors, mixers), requiring a higher starting torque (up to 150% of the rated torque at 0.5Hz).

   - **Advantages**: Good low-speed torque characteristics, fast dynamic response, and supporting closed-loop speed control (external encoder is required).

II. Starting and Stopping Modes

1. **Starting Modes**

   - **Linear Ramp**: Smooth acceleration to the set frequency, suitable for most loads.

   - **S Curve Ramp**: Adopting non-linear acceleration/deceleration during starting and stopping to reduce mechanical shock (such as elevators, cranes).

   - **Quick Start**: Supporting emergency start requirements, and it needs to be used with a braking unit.

2. **Stopping Modes**

   - **Free Stop**: Cutting off the output, and the motor stops naturally due to the inertia of the load.

   - **Deceleration Stop**: Decelerating to stop according to the set ramp, and DC braking can be set (to prevent the motor from coasting).

III. Communication and Remote Control

1. **Built-in Communication Interfaces**

   - **Modbus RTU**: Realizing device networking through the RJ45 or RS485 port, supporting the master-slave mode (such as remote control by PLC).

   - **CANopen** (Optional Expansion): Used in industrial automation networks to achieve synchronous control of multiple frequency converters.

2. **I/O Control**

   - **Digital Input**: Supporting 3 programmable inputs (such as forward and reverse rotation, multi-speed control).

   - **Analog Input**: 1 input of 0-10V or 4-20mA, used for speed regulation by an external potentiometer or sensor.

   - **Relay Output**: 2 programmable relays, which can be used for fault alarm or status indication.

IV. Advanced Functions

1. **PID Closed-loop Control**

   - Realizing the closed-loop regulation of physical quantities such as pressure and flow through the built-in PID controller (external sensor is required).

   - Typical Applications: Constant pressure water supply systems, temperature control.

2. **Automatic Energy-saving Mode**

   - Automatically optimizing the V/F curve according to the load change to reduce the motor energy consumption (especially suitable for light load operation scenarios).

3. **Motor Protection**

   - Overload protection (thermal relay function), overvoltage/undervoltage protection, short-circuit protection, and ground fault protection.

V. Parameter Setting and Debugging

- **Local Operation**: Setting parameters through the LED display and simple keyboard (LOC/REM).

- **Remote Configuration**: Using the SoMove software (a USB to Modbus adapter is required) for advanced parameter adjustment and monitoring.

Application Suggestions

- **Fan/Pump Loads**: It is recommended to use V/F control + automatic energy-saving mode.

- **Constant Torque Loads**: Sensorless flux vector control (SVC) is preferred.

- **Multi-motor Synchronization**: It is recommended to form a network through Modbus or CANopen and cooperate with the master-slave control function.

For more detailed parameter configuration guidance, you can refer to the official manual of Schneider Electric or contact the technical support.