Product Overview

The Schneider ATS22D47S6 is an Altistart 22 soft starter designed to provide controlled starting and stopping for three-phase asynchronous motors. With a 47 A starter rating and a wide 230…600 V AC supply range, this model is suitable for a broad range of industrial motor-control applications.

Motor starting can create a significant electrical and mechanical impact when a motor is connected directly to the power supply. High starting current can place additional demand on electrical distribution systems, while sudden starting torque can increase mechanical stress on shafts, couplings, belts, gearboxes, pumps, fans, and other connected equipment.

The ATS22D47S6 addresses these issues by controlling the motor starting process. Its torque-controlled starting method progressively manages motor acceleration, helping create a smoother transition from standstill to normal operation.

The ATS22D47S6 belongs to the Schneider Electric Altistart 22 family and is designed for three-phase asynchronous motors. Its 47 A starter rating makes it suitable for medium-power industrial motor applications, while its wide supply-voltage range allows it to be used in different industrial electrical systems.

The model is commonly associated with applications such as pumps, fans, compressors, conveyors, ventilation systems, and material-handling machinery. It is particularly useful when a machine requires controlled acceleration and stopping but does not require continuous variable-speed operation.

The supplied physical dimensions are approximately 265 × 130 × 169 mm, with a product weight of approximately 7 kg.

Technical Specifications

What Is the Schneider ATS22D47S6?

The Schneider ATS22D47S6 is a 47 A electronic soft starter belonging to the Altistart 22 family. It is designed to control the starting and stopping of compatible three-phase asynchronous motors.

The main purpose of a soft starter is to avoid the abrupt electrical and mechanical effects that can occur when a large motor is connected directly to the power supply.

During direct-on-line starting, the motor can draw a high inrush current. At the same time, the sudden production of motor torque can place stress on mechanical transmission components.

The ATS22D47S6 provides a controlled starting process. Instead of immediately applying the full operating condition to the motor, it progressively manages the starting torque and current.

This makes the ATS22D47S6 useful for industrial machines where the motor normally operates at a fixed speed after startup.

Unlike a variable frequency drive, the ATS22D47S6 is not intended to provide continuous speed control. Its main role is controlled acceleration and deceleration.

Function and Working Principle

A typical motor-control arrangement can be represented as:

Three-Phase Power Supply → Protection Device → ATS22D47S6 → Motor → Mechanical Load

When the control system issues a start command, the ATS22D47S6 begins its configured starting sequence.

The soft starter uses electronic power control to manage the motor’s acceleration. This creates a gradual increase in motor torque instead of the sudden torque response associated with direct-on-line starting.

The ATS22D47S6 uses torque-controlled starting and current limitation. The starting current can be limited to approximately 3.5 times the configured motor current.

Current limitation can help reduce the impact of motor starting on the electrical distribution system. Controlled torque can also reduce mechanical stress on connected equipment.

After the motor reaches normal operating conditions, the internal bypass function can reduce losses in the electronic power section.

The soft starter can also provide controlled stopping. This can be useful for applications where an immediate motor stop could create undesirable mechanical or process effects.

Role in Industrial Control Systems

The ATS22D47S6 normally works as one part of a larger industrial automation system.

A typical control system can include:

• PLC controller
• HMI operator panel
• ATS22D47S6 soft starter
• Three-phase asynchronous motor
• Incoming circuit breaker
• Motor protection device
• Isolation or switching contactor
• Emergency stop circuit
• Modbus RS485 network
• Pressure sensors
• Flow sensors
• Temperature sensors
• 230 V AC control power

The PLC can manage the machine sequence, while the ATS22D47S6 controls the motor’s acceleration and stopping process.

For example, in a pumping station, the PLC may monitor pressure and flow. When the process requires the pump to start, the controller can send a start command to the ATS22D47S6. The soft starter then controls the acceleration of the pump motor.

Operating and diagnostic information can also be integrated into the wider control system through the starter’s relay outputs and Modbus communication interface.

Industrial Applications

Pump Systems

Pumps are one of the most common applications for soft starters. Controlled acceleration can reduce sudden torque and electrical inrush during startup.

The ATS22D47S6 can be considered for compatible water pumps, circulation pumps, cooling pumps, process pumps, and industrial utility pumps.

Fans and Blowers

Large fans and blowers can have significant rotational inertia. Direct starting may produce a high current demand and mechanical shock.

The ATS22D47S6 provides a progressive starting process for compatible fixed-speed fan and blower systems.

Compressors

Industrial compressors can require significant starting torque depending on their design and operating conditions.

The ATS22D47S6 can be used for compatible compressor applications when the motor current and starting duty are within the capabilities of the starter.

Conveyor Systems

Conveyor systems can contain belts, rollers, gearboxes, couplings, and heavy material loads. Sudden motor acceleration can place unnecessary stress on these mechanical components.

The ATS22D47S6 can provide a smoother motor startup for compatible conveyor applications.

Material Handling

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

The ATS22D47S6 can be considered for fixed-speed material-handling applications where the motor and load match the starter specifications.

Ventilation Equipment

Industrial ventilation systems and large air-handling equipment can use soft starters to control the acceleration of fan motors.

The ATS22D47S6 is suitable for consideration in applications where continuous variable-speed control is not required.

Installation and System Integration

Correct installation is essential for reliable ATS22D47S6 operation. Before installation, engineers should verify the motor nameplate, incoming supply voltage, control voltage, motor current, starting duty, protection equipment, cabinet environment, and mechanical load.

Motor Verification

Check the motor’s rated voltage, current, frequency, power, connection configuration, and duty before configuring the soft starter.

Motor current is particularly important when selecting a soft starter. Motor kW should not be used as the only selection criterion.

Supply Voltage Verification

The ATS22D47S6 is designed for a 230…600 V AC rated supply range.

The actual site voltage should be checked before energizing the starter. The motor connection must also correspond correctly to the available supply voltage.

Control Voltage Verification

The ATS22D47S6 uses a 230 V AC control circuit.

This is an important difference when comparing it with other Altistart models that may use different control-voltage configurations.

Protection and Isolation

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

Protection devices should be selected according to motor current, starter characteristics, cable specifications, installation conditions, and applicable electrical requirements.

Mechanical Installation

The ATS22D47S6 measures approximately 265 × 130 × 169 mm and weighs approximately 7 kg.

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

Cooling Requirements

The ATS22D47S6 uses forced-convection cooling and incorporates a heat-sink assembly.

Cabinet thermal design should account for the heat produced by the soft starter as well as other components installed inside 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 energization, verify phase connections, grounding, cable termination, insulation condition, and terminal tightness.

Control Wiring

The ATS22D47S6 provides three logic inputs and two relay outputs. These interfaces can be used with a PLC or external control equipment for start commands, operating status, and alarm handling.

Control wiring should be routed appropriately and separated from high-current power cables where required.

Modbus Integration

The ATS22D47S6 supports Modbus communication through an RS485 multidrop interface with an RJ45 connection.

For PLC integration, communication address, transmission rate, wiring, and network configuration should be checked before commissioning.

Commissioning

Commissioning should include checking the incoming supply, control power, motor wiring, grounding, motor rotation, acceleration behavior, motor current, stopping behavior, alarm status, and communication.

The first startup should be performed under controlled conditions. If acceleration is abnormal, verify motor current settings, starting parameters, mechanical load, motor connection, and protection configuration.

Compatible System Components

Recommended Alternative Models

When selecting a replacement for the ATS22D47S6, engineers should verify the complete electrical configuration rather than selecting a model based only on the 47 A current rating.

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

The ATS22D47S6 is the wider-voltage version of the 47 A Altistart 22 configuration. It should not automatically be considered interchangeable with the ATS22D47Q because the electrical supply ranges and configurations are different.

Key Advantages

• 47 A Altistart 22 soft starter
• Designed for three-phase asynchronous motors
• 230…600 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
• 30 kW motor rating at 500 V
• Torque-controlled starting
• Current limitation to approximately 3.5 × In
• Integrated bypass function
• Modbus communication capability
• RS485 multidrop communication
• RJ45 communication connector
• Three logic inputs
• Two relay outputs
• PTC motor protection input
• IP20 protection rating
• Forced-convection cooling
• Heat-sink construction
• Suitable for PLC-based automation systems
• Suitable for pump applications
• Suitable for fans and blowers
• Suitable for compressor applications
• Suitable for conveyor systems
• Suitable for material-handling equipment
• Suitable for industrial ventilation systems
• Dimensions of approximately 265 × 130 × 169 mm
• Weight of approximately 7 kg

Technical FAQs

What is the Schneider ATS22D47S6?

The Schneider ATS22D47S6 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 ATS22D47S6?

Its main function is to provide controlled motor acceleration and stopping, helping reduce electrical inrush and mechanical stress compared with direct-on-line starting.

What is the current rating of the ATS22D47S6?

The ATS22D47S6 has an IcL starter rating of 47 A for standard connection in the motor supply line.

What supply voltage does the ATS22D47S6 support?

The ATS22D47S6 is designed for a 230…600 V AC rated supply range.

What is the control voltage of the ATS22D47S6?

The ATS22D47S6 uses a 230 V AC control circuit.

What motor power can the ATS22D47S6 handle?

Typical power ratings include approximately 11 kW at 230 V, 22 kW at 400 V, 22 kW at 440 V, and 30 kW at 500 V.

Does the ATS22D47S6 support torque-controlled starting?

Yes. The ATS22D47S6 uses torque-controlled starting with current limitation of approximately 3.5 times the configured motor current.

Does the ATS22D47S6 have an internal bypass?

Yes. The ATS22D47S6 incorporates an internal bypass function that helps reduce losses during normal motor operation.

Does the ATS22D47S6 support Modbus communication?

Yes. The ATS22D47S6 supports Modbus communication through an RS485 multidrop interface.

Can the ATS22D47S6 work with a PLC?

Yes. It can be integrated into PLC-based control systems through its logic inputs, relay outputs, and Modbus communication interface.

What are the typical applications of the ATS22D47S6?

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

Is the ATS22D47S6 a variable frequency drive?

No. The ATS22D47S6 is a soft starter. It is designed primarily for controlled motor starting and stopping rather than continuous variable-speed operation.

What are the dimensions of the ATS22D47S6?

The ATS22D47S6 measures approximately 265 × 130 × 169 mm.

How much does the ATS22D47S6 weigh?

The product weight is approximately 7 kg.

What is the protection rating of the ATS22D47S6?

The ATS22D47S6 has an IP20 protection rating and is intended for installation in a suitable electrical cabinet or protected industrial environment.

What cooling method does the ATS22D47S6 use?

The ATS22D47S6 uses forced-convection cooling with a heat-sink assembly. Proper cabinet ventilation should therefore be considered during installation.

What is the difference between ATS22D47S6 and ATS22D47Q?

The main difference is the supply-voltage configuration. The ATS22D47S6 is the wider-voltage version, covering 230…600 V AC, while the ATS22D47Q is intended for the 230…440 V AC range. The complete model number should therefore be checked before replacement.

Is the ATS22D47S6 still available?

The ATS22D47S6 is a legacy Altistart 22 model and is scheduled for discontinuation in certain markets. It can still be relevant for existing installations, maintenance, and spare-part replacement.

What is the recommended replacement for the ATS22D47S6?

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

Conclusion

The Schneider ATS22D47S6 Soft Starter is a 47 A Altistart 22 motor-control device designed to provide controlled starting and stopping for three-phase asynchronous motors.

Its wide 230…600 V AC supply range makes it suitable for a broad range of industrial electrical systems. With torque-controlled starting and current limitation, the ATS22D47S6 can reduce the electrical and mechanical impact associated with direct-on-line motor starting.

The unit is suitable for applications such as pumps, fans, compressors, conveyors, ventilation equipment, and material-handling machinery. Its integrated bypass, Modbus communication, logic inputs, relay outputs, and PTC input also allow it to become part of a larger PLC-based industrial automation system.

The physical dimensions of approximately 265 × 130 × 169 mm and weight of approximately 7 kg should be considered when designing or modifying an electrical cabinet.

For maintenance engineers, OEMs, and system integrators, the complete ATS22D47S6 model number should be verified before purchasing a replacement. In particular, it should not be confused with the ATS22D47Q, because the two models have different supply-voltage configurations.

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