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The Schneider ATS490C14Y Soft Starter is an industrial three-phase motor-control device from the Altivar Soft Starter ATS490 family. It is designed for controlled starting and stopping of asynchronous AC motors in industrial automation, process equipment, infrastructure systems, and heavy-duty motor applications.
The ATS490C14Y is rated at 140 A and is designed for 208–690 V AC motor supplies, with a 110–230 V AC control supply. Schneider’s product information also identifies integrated bypass functionality and Safe Torque Off (STO), while the ATS490 platform provides motor, application, power, and energy monitoring capabilities.
The unit supports industrial communication through Modbus serial, Modbus TCP, and EtherNet/IP, allowing it to be integrated into PLC, HMI, SCADA, and plant-level automation architectures.
The physical specifications supplied for this product are 356 × 160 × 235 mm, with a listed weight of 10 kg. Schneider’s dimensional documentation identifies the ATS490C14Y and ATS490C17Y as the larger physical frame compared with the ATS490C11Y, with a front width of 160 mm and a depth of approximately 235 mm.
The ATS490C14Y is suitable for applications including pumps, fans, compressors, conveyors, mixers, cutters, grinders, and crushers.
| Parameter | Specification |
|---|---|
| Manufacturer | Schneider Electric |
| Model | ATS490C14Y |
| Product Family | Altivar Soft Starter ATS490 |
| Product Type | Soft Starter |
| Rated Current | 140 A |
| Motor Supply Voltage | 208–690 V AC |
| Control Supply | 110–230 V AC |
| Motor Type | Three-Phase Asynchronous AC Motor |
| Starting Method | Torque-Controlled Start |
| Bypass | Integrated |
| Dimensions | 356 × 160 × 235 mm |
| Weight | 10 kg |
| Mounting Position | Vertical |
| Communication | Modbus Serial, Modbus TCP, EtherNet/IP |
| Typical Applications | Pumps, Fans, Compressors, Conveyors, Mixers, Crushers |
| Safety Function | Safe Torque Off (STO) |
| Installation | Electrical Control Cabinet |
| Technical Item | ATS490C14Y |
|---|---|
| Brand | Schneider Electric |
| Model Number | ATS490C14Y |
| Series | ATS490 |
| Rated Current | 140 A |
| Supply Voltage Range | 208–690 V AC |
| Control Voltage | 110–230 V AC |
| Phase | Three-Phase |
| Motor Type | AC Asynchronous Motor |
| Product Function | Soft Start / Soft Stop |
| Bypass | Integrated |
| Start Type | Torque Control Start |
| Dimensions | 356 × 160 × 235 mm |
| Weight | 10 kg |
| Operating Position | Vertical |
| Communication Ports | Modbus Serial / Modbus TCP / EtherNet/IP |
| Analog Inputs | 1 |
| Analog Outputs | 1 |
| Digital Inputs | 5 |
| Digital Outputs | 2 |
| Relay Outputs | 3 |
| Installation | Panel / Enclosure |
| Main Application Areas | Process and Infrastructure |
The 140 A rating, 208–690 V AC range, control-supply range, communication capabilities, and I/O information are supported by current product documentation and product listings.
The ATS490C14Y is a high-current soft starter used to control the acceleration and stopping of three-phase AC motors.
A conventional direct-on-line motor start can produce a substantial current surge and an immediate torque increase. For machines with large mechanical inertia, this sudden acceleration can stress:
The ATS490C14Y provides controlled motor starting so that the motor can accelerate according to the requirements of the application.
A simplified power arrangement is:
Three-Phase AC Supply
↓
Circuit Protection / Isolation
↓
ATS490C14Y
↓
AC Motor
↓
Mechanical Load
The soft starter can simultaneously form part of a larger automation architecture:
PLC / HMI / SCADA
↓
Industrial Communication or Control Signals
↓
ATS490C14Y
↓
Motor
The ATS490C14Y is identified as a 140 A ATS490 model for 208–690 V AC applications. Schneider’s selection data places the C14Y model at 140 A, following the C11Y 110 A model and preceding the C17Y 170 A model in the ATS490 range.
When selecting a soft starter, the motor’s actual nominal current must be considered rather than selecting solely according to motor horsepower.
Important selection factors include:
The motor current should remain within the applicable operational rating of the selected starter.
A soft starter manages the electrical conditions applied to the motor during acceleration.
The basic process is:
Start Command
↓
Controlled Voltage / Torque Development
↓
Motor Acceleration
↓
Normal Operating Speed
↓
Bypass / Normal Running Condition
The ATS490 platform incorporates an internal bypass function, which helps reduce losses associated with the power semiconductor stage once the motor has reached normal operating conditions.
The actual acceleration behavior depends on motor characteristics and the mechanical load.
The ATS490C14Y provides controlled starting for three-phase AC motors.
This can help reduce the abrupt electrical and mechanical effects associated with direct starting.
The product is specified with a torque-control starting method, allowing the acceleration process to be adapted to the mechanical requirements of the application.
Where appropriate, controlled stopping can reduce abrupt changes in motor speed.
This can be useful in applications where sudden stopping creates mechanical or process disturbances.
The ATS490C14Y includes an internal bypass function.
The ATS490 platform provides monitoring capabilities covering areas such as:
This makes the starter more than a simple motor-starting device and allows it to participate in broader equipment-monitoring strategies.
The ATS490C14Y supports:
These interfaces can be used for integration with industrial controllers and supervisory systems.
The ATS490C14Y can be used in industrial pump applications where controlled acceleration and stopping are beneficial.
Potential applications include:
Controlled starting can help reduce sudden pressure changes and mechanical stress.
Conveyors often have substantial inertia, particularly when transporting heavy materials.
The ATS490C14Y can help provide a smoother acceleration profile for:
Large fans can require substantial acceleration torque because of their rotating mass.
A controlled start can reduce the mechanical impact associated with rapid acceleration.
The ATS490C14Y can be applied to suitable compressor motor systems where controlled starting is appropriate.
The actual application must consider compressor characteristics, starting torque requirements, and process conditions.
Mixers may have high inertia or variable mechanical loading.
A controlled motor-starting process can help reduce mechanical shock during startup.
Heavy industrial machines such as crushers and grinders can place substantial starting demands on motors.
The ATS490 family is designed for demanding applications of this type.
Before installation, verify that the selected starter is appropriate for the motor.
For the ATS490C14Y, confirm:
Do not select a starter based only on physical dimensions.
Confirm the product identification:
Schneider ATS490C14Y
Inspect the unit for:
Supplied physical information:
Height: 356 mm
Width: 160 mm
Depth: 235 mm
Weight: 10 kg
The manufacturer documentation also specifies vertical installation for the ATS490 platform.
The ATS490C14Y should be installed in a suitable enclosure with sufficient space for:
Avoid installing the starter immediately next to components that generate substantial heat without considering the cabinet thermal balance.
The supplied weight is 10 kg, so the cabinet mounting arrangement must provide adequate mechanical support.
Verify:
The ATS490 dimensional documentation identifies M6 mounting screws for the relevant ATS490C14Y/C17Y frame.
Before wiring:
Only appropriately qualified personnel should perform the electrical installation.
Connect the incoming three-phase supply according to the approved electrical schematic.
Verify:
All connections should be checked before energizing the system.
Connect the motor according to the approved application schematic.
Verify:
A controlled rotation test should be performed before placing the machine into production service.
The ATS490C14Y can be integrated into external control systems using appropriate control signals and communication interfaces.
Depending on the installation, the system may include:
The ATS490C14Y provides Ethernet-based communication capabilities through Modbus TCP and EtherNet/IP, as well as Modbus serial communication.
Enter or verify the motor information required by the application.
Important information can include:
Correct motor information is essential for reliable protection and starting performance.
If the ATS490C14Y is connected to a PLC or supervisory system, verify:
Test communication before depending on network-based control for production operation.
Start the motor under controlled conditions.
Observe:
If abnormal behavior occurs, stop the test and investigate before continuing.
Once the initial test is successful:
| Item | Verification |
|---|---|
| ATS490C14Y Model Confirmed | Confirmed |
| 140 A Rating Verified | Confirmed |
| Motor Voltage Verified | Confirmed |
| Motor Current Verified | Confirmed |
| Application Load Confirmed | Confirmed |
| Cabinet Space Checked | Confirmed |
| Vertical Mounting Verified | Confirmed |
| Ventilation Checked | Confirmed |
| Mounting Support Verified | Confirmed |
| Power Wiring Checked | Confirmed |
| Motor Wiring Checked | Confirmed |
| Grounding Checked | Confirmed |
| Control Wiring Checked | Confirmed |
| Communication Tested | Confirmed |
| Motor Parameters Configured | Confirmed |
| Initial Start Completed | Confirmed |
| Rotation Verified | Confirmed |
| Full-Load Test Completed | Confirmed |
| Diagnostics Checked | Confirmed |
Start with the basic electrical and control path.
Check:
If the PLC indicates a start command but the starter does not respond, check the control interface and starter status before replacing hardware.
When a fault appears:
Fault history can provide valuable information about whether the problem is electrical, mechanical, thermal, or control-related.
Possible causes include:
Measure the motor current during acceleration and compare it with expected application behavior.
Investigate:
A conveyor carrying an unusually heavy load, for example, may require different starting conditions from an unloaded conveyor.
If the machine experiences excessive mechanical impact, review:
The objective is not simply to make acceleration as slow as possible. The starting profile should provide sufficient acceleration while minimizing unnecessary mechanical stress.
Check:
If the motor reaches a stable but abnormally low speed, inspect the mechanical load and electrical conditions before assuming the soft starter has failed.
Potential causes include:
Check both the starter and the cabinet environment.
Possible causes include:
Measure actual motor current and compare it with the expected operating condition.
If starting current is higher than expected, investigate:
A soft starter controls the starting process, but it cannot eliminate the current required to produce the torque needed to accelerate the motor.
Inspect:
A vibration problem should not automatically be attributed to the soft starter.
Check:
Determine whether the stop originated from the starter, PLC, safety system, or driven machine.
Because the ATS490C14Y supports Modbus serial, Modbus TCP, and EtherNet/IP, communication problems should be diagnosed systematically.
Check:
If local starter control works but network control fails, focus first on the communication layer rather than the motor power circuit.
Investigate:
Record exactly when the reset occurs.
A reset during startup may indicate a different problem from a reset during steady-state operation.
Inspect:
Check:
Perform:
Maintenance intervals should be adjusted according to operating hours, environmental conditions, starting frequency, and machine criticality.
The ATS490C14Y should be installed in an enclosure designed to manage the heat generated by the complete electrical system.
Consider:
The supplied physical dimensions are:
356 × 160 × 235 mm
The listed weight is:
10 kg
The unit should be mounted vertically with adequate airflow around the equipment. Schneider’s ATS490 documentation specifies vertical installation.
A good starting configuration balances electrical performance, mechanical requirements, and process behavior.
| Parameter | Objective |
|---|---|
| Starting Current | Limit unnecessary electrical stress |
| Starting Torque | Provide sufficient motor acceleration |
| Acceleration Time | Match machine requirements |
| Motor Temperature | Prevent excessive thermal loading |
| Mechanical Stress | Protect shafts, couplings, and gearboxes |
| Process Response | Maintain stable production |
| Starting Frequency | Prevent excessive thermal loading |
A pump may require smooth acceleration to minimize hydraulic disturbances, while a crusher or heavily loaded conveyor may require sufficient starting torque to overcome high mechanical resistance.
Before replacing an existing starter with an ATS490C14Y, verify:
| Check Item | Purpose |
|---|---|
| Model Number | Confirms product identity |
| Rated Current | Confirms application suitability |
| Motor Voltage | Confirms electrical compatibility |
| Motor Current | Confirms correct sizing |
| Load Type | Confirms starting requirements |
| Control Wiring | Prevents wiring errors |
| Communication | Preserves PLC integration |
| Protection | Maintains system protection |
| Cabinet Cooling | Prevents thermal problems |
| Mounting Space | Confirms physical compatibility |
| Configuration | Preserves machine behavior |
A replacement should not be considered electrically equivalent merely because the physical dimensions appear similar.
The ATS490C14Y is normally part of a complete motor-control system.
| Component | Function |
|---|---|
| Three-Phase Power Supply | Provides Motor Power |
| Circuit Protection | Protects the Electrical Circuit |
| ATS490C14Y | Controls Motor Starting and Stopping |
| AC Motor | Converts Electrical Energy into Mechanical Power |
| Motor Cable | Transfers Motor Power |
| PLC | Provides Control Logic |
| HMI | Provides Operator Interface |
| Ethernet Network | Provides Industrial Communication |
| Modbus Network | Provides Serial Communication |
| Control Relays | Provides Control / Interlocking |
| Safety Circuit | Provides Machine Safety Functions |
| Mechanical Load | Performs the Required Work |
One of the important characteristics of the ATS490C14Y is its ability to participate in networked industrial automation systems.
The device supports:
Modbus Serial
Modbus TCP
EtherNet/IP
These communication capabilities can allow the control system to exchange information such as:
This makes the ATS490C14Y suitable for applications where motor control and condition information need to be incorporated into a centralized automation architecture.
The ATS490C14Y is a 140 A model within the ATS490 family, intended for higher-current industrial motor applications.
The product supports a 208–690 V AC motor supply range, subject to the applicable operating conditions and motor requirements.
The built-in bypass function can reduce losses associated with continuous operation through the soft-start power stage after startup.
Modbus Serial, Modbus TCP, and EtherNet/IP provide options for PLC and supervisory-system integration.
The ATS490 platform incorporates monitoring functions for motor, application, power, and energy conditions.
The ATS490 family is designed for applications including pumps, fans, compressors, conveyors, mixers, cutters, grinders, and crushers.
The Schneider ATS490C14Y is a 140 A Altivar Soft Starter ATS490 designed for controlled starting and stopping of three-phase asynchronous AC motors.
The specified motor supply range is 208–690 V AC.
The ATS490C14Y is a 140 A model.
The supplied dimensions are:
356 × 160 × 235 mm
The listed weight is:
10 kg
The ATS490C14Y supports:
Yes. The product is specified with an integrated bypass function.
Typical applications include:
Check incoming power, control supply, start commands, stop circuits, interlocks, motor wiring, configuration, protection functions, and active fault conditions.
Possible causes include excessive starting frequency, high ambient temperature, insufficient ventilation, blocked airflow, excessive current, loose connections, or incorrect application sizing.
Possible causes include excessive mechanical load, insufficient starting torque, motor faults, supply problems, phase issues, or protection functions being activated.
Yes. The ATS490C14Y supports industrial communication through Modbus Serial, Modbus TCP, and EtherNet/IP.
| Item | Status |
|---|---|
| ATS490C14Y Model Confirmed | ✓ |
| 140 A Rating Confirmed | ✓ |
| Motor Voltage Verified | ✓ |
| Motor Current Verified | ✓ |
| Motor Connection Verified | ✓ |
| Application Load Verified | ✓ |
| Cabinet Space Verified | ✓ |
| Vertical Mounting Verified | ✓ |
| Ventilation Verified | ✓ |
| Mounting Support Verified | ✓ |
| Incoming Power Wiring Verified | ✓ |
| Motor Wiring Verified | ✓ |
| Grounding Verified | ✓ |
| Control Wiring Verified | ✓ |
| Communication Configuration Verified | ✓ |
| Motor Parameters Configured | ✓ |
| Initial Start Completed | ✓ |
| Rotation Direction Verified | ✓ |
| Full-Load Test Completed | ✓ |
| Fault Diagnostics Checked | ✓ |
The Schneider ATS490C14Y Soft Starter is a 140 A industrial motor-control solution designed for controlled starting and stopping of three-phase asynchronous AC motors. With a specified motor supply range of 208–690 V AC, integrated bypass, industrial communication capabilities, monitoring functions, and support for demanding applications, it can serve as an important component within modern industrial motor-control architectures.
The supplied physical specifications are 356 × 160 × 235 mm, with a listed weight of 10 kg. Installation should provide adequate cabinet space, vertical mounting, ventilation, mechanical support, electrical protection, and accessible power and control connections.
For commissioning, the motor’s nominal current, voltage, mechanical load, starting duty, and operating environment should be verified before the starter is placed into normal production service. Communication parameters should also be checked when the ATS490C14Y is integrated with a PLC, HMI, SCADA, or industrial Ethernet network.
For troubleshooting, it is important to diagnose the complete system rather than assuming every fault originates inside the soft starter. Power quality, motor condition, mechanical loading, control signals, communication, thermal conditions, configuration, and external protection can all influence motor-starting performance.
With correct selection, installation, configuration, and preventive maintenance, the ATS490C14Y can provide controlled motor operation and support reliable performance in pumps, conveyors, fans, compressors, mixers, crushers, and other industrial applications.