Product Overview

The Schneider ATS22D47Q is an Altistart 22 soft starter designed for controlled starting and stopping of three-phase asynchronous motors. With a 47 A starter rating, 230 V AC control circuit, and a 230…440 V AC motor supply range, it is intended for industrial motor applications where smooth acceleration, reduced starting stress, and reliable fixed-speed motor operation are required.

Direct-on-line starting can cause a motor to draw a large starting current while simultaneously producing a sudden mechanical torque. In industrial machinery, this can place additional stress on shafts, couplings, gearboxes, belts, pumps, fans, compressors, and other connected equipment.

The ATS22D47Q provides a controlled starting method that progressively manages motor acceleration. By using torque-controlled starting and current limitation, the soft starter can reduce the impact associated with conventional direct motor starting.

The ATS22D47Q is particularly suitable for fixed-speed motor applications where the motor normally operates directly from the AC supply after startup. It is commonly associated with pumps, fans, compressors, conveyors, material-handling equipment, and other industrial machinery.

The model belongs to the Schneider Electric Altistart 22 family. Its rated starter current is 47 A for standard connection in the motor supply line. The physical dimensions are approximately 265 × 130 × 169 mm, and the product weight is approximately 7 kg.

The ATS22D47Q is a specific voltage and control configuration, so the complete model number should always be checked when purchasing a replacement. It should not automatically be considered interchangeable with other 47 A Altistart models such as the ATS22D47S6 because their supply-voltage ranges and application configurations can differ.

Technical Specifications

What Is the Schneider ATS22D47Q?

The Schneider ATS22D47Q is a 47 A electronic soft starter from the Altistart 22 product family. It is designed to control the starting and stopping of compatible three-phase asynchronous motors.

The primary purpose of a soft starter is to provide a smoother transition from motor standstill to normal operating speed. Instead of applying the full electrical supply to the motor immediately, the starter controls the starting process to reduce the initial electrical and mechanical impact.

The ATS22D47Q is rated for three-phase AC applications from approximately 230 to 440 V. For standard motor-supply-line connection, it provides a 47 A starter rating.

The corresponding motor power ratings include approximately 11 kW at 230 V and 22 kW at 400 V and 440 V. Actual application selection should always be based on motor current, starting duty, load characteristics, and installation conditions rather than motor power alone.

The ATS22D47Q is especially useful when a motor needs controlled starting but does not require continuous variable-speed operation. This makes it different from a variable frequency drive.

A VFD can continuously change motor frequency and speed, while the ATS22D47Q primarily manages acceleration and deceleration while the motor operates from the fixed-frequency AC supply during normal operation.

Function and Working Principle

A typical ATS22D47Q motor-control arrangement can be represented as:

Three-Phase AC Supply → Circuit Protection → ATS22D47Q → Three-Phase Motor → Mechanical Load

When a start command is received, the ATS22D47Q initiates the configured motor starting sequence.

The starter uses electronic power control to progressively manage the motor’s acceleration. This allows the motor to build up operating torque in a controlled manner instead of experiencing the sudden electrical and mechanical impact associated with direct-on-line starting.

The ATS22D47Q uses torque-controlled starting with current limitation. The current limitation can reach approximately 3.5 times the configured motor current, depending on the selected operating parameters and application conditions.

Controlling the starting current can help reduce the effect of motor inrush on the electrical distribution system. At the same time, controlled acceleration can reduce sudden mechanical torque transmitted to the connected load.

Once the motor reaches normal operating conditions, the integrated bypass function can reduce losses in the electronic power section. This is particularly useful for applications where the motor operates continuously after startup.

The ATS22D47Q can also provide controlled stopping. A controlled stop can be useful when the mechanical load or industrial process should not experience an immediate loss of motor torque.

Role in Industrial Control Systems

The ATS22D47Q normally operates as one component within a complete industrial motor-control architecture.

A typical installation may contain:

• PLC controller
• HMI operator interface
• ATS22D47Q soft starter
• Three-phase asynchronous motor
• Incoming circuit breaker
• Motor protection equipment
• Isolation or switching contactor
• Emergency stop circuit
• Pressure sensors
• Flow sensors
• Temperature sensors
• Modbus RS485 communication network
• 230 V AC control power supply

The PLC can control the machine sequence while the ATS22D47Q manages the motor starting and stopping process.

For example, in a pumping system, the PLC can monitor pressure, flow, or tank level. When the process requires the pump to start, a control command can be sent to the ATS22D47Q. The soft starter then manages motor acceleration until normal operating conditions are reached.

The starter’s relay outputs and communication interface can also be used to provide operating and diagnostic information to the wider control system.

Industrial Applications

Pump Systems

Pumps are an important application for the ATS22D47Q. Controlled acceleration can reduce mechanical shock and limit the impact of motor starting current on the electrical system.

The unit can be considered for compatible water pumps, circulation pumps, cooling pumps, process pumps, and industrial utility pumps.

Fans and Blowers

Fans and blowers can have considerable rotational inertia. Direct-on-line starting can create a sudden demand on the motor and mechanical drive system.

The ATS22D47Q can provide a progressive starting profile for compatible fixed-speed fan and blower applications.

Compressors

Compressors can require substantial starting torque depending on their mechanical design and process conditions.

The ATS22D47Q can be considered for suitable compressor applications when the motor current, starting duty, and load characteristics are within the soft starter’s capabilities.

Conveyors

Conveyors often contain belts, rollers, gearboxes, couplings, and material loads. Sudden motor starting can produce mechanical stress throughout the drive train.

The ATS22D47Q can provide controlled acceleration for compatible conveyor systems, helping create a smoother transition from standstill to normal operation.

Material Handling

Material-handling equipment can benefit from controlled motor acceleration because sudden torque can affect belts, gears, couplings, and transported materials.

The ATS22D47Q is suitable for consideration in fixed-speed material-handling systems when the motor and load match the starter’s ratings.

Industrial Machinery

Other potential applications include ventilation systems, mixers, process machinery, utility equipment, and fixed-speed industrial machines using compatible three-phase asynchronous motors.

Installation and System Integration

Correct installation is essential for reliable operation of the ATS22D47Q. Before installation, the motor nameplate, supply voltage, control voltage, motor current, starting duty, protection system, cabinet environment, and mechanical load should be verified.

Motor Nameplate Verification

Check the motor’s rated voltage, current, frequency, power, connection configuration, and operating duty before selecting the starter parameters.

The actual motor current is particularly important because soft starter selection should not be based on motor kW alone.

Supply Voltage Verification

The ATS22D47Q is designed for a 230…440 V AC rated supply range, with supply voltage limits of approximately 195…484 V.

The actual site voltage must be confirmed before energizing the soft starter.

Control Voltage Verification

The ATS22D47Q uses a 230 V AC control circuit at 50/60 Hz.

This characteristic is important when replacing an existing unit because other Altistart 22 variants may have different control-voltage configurations.

Protection and Isolation

The motor-control system should include suitable short-circuit protection, isolation, grounding, and motor protection.

Protection components should be selected according to the motor, starter, cable system, installation conditions, and applicable electrical requirements.

Mechanical Mounting

The ATS22D47Q measures approximately 265 × 130 × 169 mm and weighs approximately 7 kg.

The cabinet mounting structure should safely support the unit. Adequate clearance should also be provided for power cables, control wiring, ventilation, inspection, and maintenance.

Cooling and Cabinet Ventilation

The ATS22D47Q uses forced-convection cooling and includes a heat-sink assembly.

Cabinet thermal design should therefore account for the starter’s heat dissipation as well as the heat produced by other electrical components installed in the same enclosure.

Power Wiring

Power cables should be selected according to motor current, cable length, installation method, ambient temperature, and applicable electrical requirements.

Before energizing the system, verify phase connections, grounding, cable termination, insulation condition, and terminal tightness.

Control Wiring

The ATS22D47Q provides three logic inputs and two relay outputs. These interfaces can be connected to a PLC or other control equipment for start commands, operating status, alarms, and fault monitoring.

Control cables should be routed appropriately and separated from high-current motor cables where required to minimize electrical interference.

Modbus Communication

The ATS22D47Q supports Modbus communication through an RS485 multidrop interface.

When connected to a PLC or supervisory control system, the communication address, transmission rate, network wiring, and termination arrangement should be configured correctly.

Commissioning

Commissioning should include verification of incoming supply voltage, 230 V control power, motor wiring, grounding, motor rotation, acceleration behavior, motor current, stopping characteristics, alarm status, and communication operation.

The first motor startup should be performed under controlled conditions. If the motor does not accelerate correctly, check the motor current setting, starting parameters, mechanical load, motor connection, and protection settings before repeated startup attempts.

Compatible System Components

Recommended Alternative Models

When replacing the ATS22D47Q, the complete electrical configuration should be checked rather than selecting a replacement based only on the 47 A rating.

Important factors include motor current, motor voltage, supply voltage, control voltage, motor power, starting duty, load type, number of starts, cabinet dimensions, cooling requirements, communication requirements, and protection coordination.

The ATS22D47Q is the 230…440 V AC / 230 V control version. Models with similar current ratings but different suffixes may have different voltage ranges and should not be treated as automatic drop-in replacements.

Key Advantages

• 47 A Altistart 22 soft starter
• Designed for three-phase asynchronous motors
• 230…440 V AC rated supply range
• 230 V AC control circuit
• 11 kW motor rating at 230 V
• 22 kW motor rating at 400 V
• 22 kW motor rating at 440 V
• Torque-controlled starting
• Current limitation to approximately 3.5 × In
• Integrated bypass function
• Modbus communication capability
• RS485 multidrop communication
• Three logic inputs
• Two relay outputs
• PTC motor protection input
• IP20 protection rating
• Forced-convection cooling
• Heat-sink construction
• Suitable for PLC-based industrial automation
• Suitable for pump systems
• Suitable for fans and blowers
• Suitable for compressor applications
• Suitable for conveyor systems
• Suitable for material-handling equipment
• Compact cabinet installation
• Dimensions of approximately 265 × 130 × 169 mm
• Weight of approximately 7 kg

Technical FAQs

What is the Schneider ATS22D47Q?

The Schneider ATS22D47Q is a 47 A Altistart 22 electronic soft starter designed to control the starting and stopping of compatible three-phase asynchronous motors.

What is the main function of the ATS22D47Q?

Its primary function is to provide controlled motor acceleration and stopping, reducing the electrical and mechanical impact associated with direct-on-line motor starting.

What is the current rating of the ATS22D47Q?

The ATS22D47Q has an IcL starter rating of 47 A for standard connection in the motor supply line.

What supply voltage does the ATS22D47Q support?

The ATS22D47Q is designed for a 230…440 V AC rated supply range, with supply voltage limits of approximately 195…484 V.

What control voltage does the ATS22D47Q use?

The ATS22D47Q uses a 230 V AC control circuit at 50/60 Hz.

What motor power is supported by the ATS22D47Q?

The typical motor power ratings are approximately 11 kW at 230 V, 22 kW at 400 V, and 22 kW at 440 V for standard motor-supply-line applications.

Does the ATS22D47Q support torque-controlled starting?

Yes. The ATS22D47Q uses torque-controlled starting with current limitation of approximately 3.5 times the configured motor current.

Does the ATS22D47Q have an internal bypass?

Yes. The ATS22D47Q includes an internal bypass function, which helps reduce losses and heat generation during normal motor operation.

Does the ATS22D47Q support Modbus?

Yes. The ATS22D47Q supports Modbus communication through an RS485 multidrop interface.

Can the ATS22D47Q be connected to a PLC?

Yes. It can be integrated into PLC-based automation systems using its logic inputs, relay outputs, and Modbus communication capabilities.

What are the typical applications of the ATS22D47Q?

Typical applications include pumps, fans, blowers, compressors, conveyors, material-handling equipment, ventilation systems, and other fixed-speed industrial machinery.

Is the ATS22D47Q a variable frequency drive?

No. The ATS22D47Q is a soft starter. It primarily controls motor acceleration and deceleration rather than providing continuous variable-speed operation.

What are the dimensions of the ATS22D47Q?

The ATS22D47Q measures approximately 265 × 130 × 169 mm.

How much does the ATS22D47Q weigh?

The product weight is approximately 7 kg.

What is the protection rating of the ATS22D47Q?

The ATS22D47Q has an IP20 protection rating and is intended for installation in a suitable electrical cabinet or protected industrial control environment.

What cooling method does the ATS22D47Q use?

The ATS22D47Q uses forced-convection cooling and is supplied with a heat-sink assembly. Cabinet ventilation and thermal management should therefore be considered during installation.

Is the ATS22D47Q still a current product?

The ATS22D47Q is a legacy Altistart 22 model and Schneider Electric has announced its discontinuation in different markets. Existing installations can continue to require this model for maintenance and replacement, while new projects should evaluate current-generation alternatives.

What is the recommended replacement for the ATS22D47Q?

The ATS430D47S6 is the current-generation replacement to evaluate. It provides a 47 A rating with a 208…600 V AC supply range and a 110…230 V AC control supply range. A complete engineering compatibility check should be performed before replacement.

Conclusion

The Schneider ATS22D47Q Soft Starter is a 47 A Altistart 22 motor-control device designed for controlled starting and stopping of three-phase asynchronous motors. It is particularly useful in fixed-speed industrial applications where direct-on-line starting could produce excessive electrical inrush or mechanical stress.

With a 230…440 V AC rated supply range and a 230 V AC control circuit, the ATS22D47Q supports motor applications up to approximately 11 kW at 230 V and 22 kW at 400…440 V in standard motor-supply-line connection.

Its torque-controlled starting method, current limitation, integrated bypass, Modbus communication, logic inputs, relay outputs, and PTC input allow it to function as part of a larger industrial automation and motor-control system.

The ATS22D47Q is suitable for applications including pumps, fans, compressors, conveyors, ventilation equipment, and material-handling machinery. Its physical dimensions of approximately 265 × 130 × 169 mm and weight of approximately 7 kg should be included when planning cabinet installation or replacement.

For maintenance engineers, OEMs, and system integrators, it is important to verify the complete ATS22D47Q model number before replacement. In particular, the D47Q version should not be confused with other 47 A models that use different supply-voltage or control-voltage configurations.

For modernization projects, the ATS430D47S6 should also be considered as a current-generation alternative. Before installation, engineers should verify motor current, supply voltage, control voltage, starting duty, protection coordination, cabinet dimensions, cooling requirements, communication configuration, and mechanical-load characteristics.