Schneider Electric Altivar Machine ATV320 Variable Speed Drive

A fault related to an incorrect angle setting, which can impact precise motor control and synchronization. This typically indicates an issue with the feedback device or its configuration.

An invalid configuration was detected at power on. This usually indicates corrupted or incompatible settings within the drive, preventing it from starting or operating correctly. Operating with an invalid configuration can lead to unpredictable behavior or component damage.

A fault occurred during the transfer of configuration data to the drive. This could be due to an interruption, an incompatible configuration file, or an issue with the transfer medium (e.g., communication cable). The drive may not operate as intended with incomplete or corrupted settings.

Indicates an interruption in the CANopen® communication with the drive. This means the drive is no longer receiving commands or transmitting data via the CANopen® network, leading to a loss of control and operational status.

A detected error during channel switching. This can occur in applications with dual control channels or safety functions, potentially leading to incorrect control source selection or unexpected behavior, posing a risk if the wrong control source is active.

Indicates an interruption in communication with an NET option card. The fault code remains saved even if the cause disappears and is reset only after a power cycle. This prevents remote control or monitoring, leading to a loss of control over the connected equipment.

A fault detected in the load relay, often related to capacitor charging. This can prevent the drive from energizing its DC bus properly or switching the output, leading to a failure to start or maintain operation and potential damage to internal components.

A detected error within the Control EEPROM. This non-volatile memory stores critical drive parameters and firmware. Corruption here can prevent the drive from booting, operating, or retaining its configuration, leading to a complete system failure.

A detected error within the Power EEPROM. This memory typically stores power stage specific calibration data and hardware information. Corruption can lead to incorrect power stage operation, impacting motor control and potentially causing internal hardware damage.

An external fault detected from a logic input (LI) or a local link. This indicates that an external safety device, sensor, or interlock has triggered a fault condition, causing the drive to stop. The specific cause depends on the connected device and its state.

An external interruption detected from a communication board. This indicates that a fault condition was received from an external system via a communication interface, causing the drive to trip. It implies an issue with the higher-level control system or communication link.

Indicates that the output contactor is detected as stuck in the closed position when it should be open. This is a critical safety fault, as power may still be applied to the motor when it should be disconnected, leading to uncontrolled startup or dangerous conditions.

Indicates that the output contactor is detected as open when it should be closed. This prevents the drive from supplying power to the motor, resulting in a failure to start or operate. This could be due to a wiring issue, contactor fault, or an active interlock.

A detected error within a function block. This refers to internal programming or logic errors within predefined or user-configured function blocks, impacting specific control functionalities. It can lead to incorrect control outputs or unexpected drive behavior.

A function block stop detected error. This means a fault condition was triggered within a function block that is designed to initiate a stop sequence. It indicates a problem with the stop logic or the conditions monitored by the function block.

A detected error in the hardware configuration, possibly related to 'cards pairing'. This means the drive's internal components or installed option cards are not recognized correctly or are incompatible. This can prevent the drive from operating or utilizing specific features.

A hardware detected error, specifically related to IGBT desaturation. This indicates a very high voltage drop across an IGBT, often due to a short circuit in the motor or power wiring, or an internal IGBT failure. This is a critical fault that can lead to immediate hardware damage if not addressed.

An interruption in the internal communication link for an option card. This means the option card cannot communicate with the main drive controller, rendering its functionality unavailable. This can be due to poor seating, damage, or an incompatible card.

Indicates a communication interruption between option card 1 and the drive. This fault code is read-only and persists until the drive is disconnected and reconnected to power. It implies that the functionality of option card 1 is unavailable, potentially impacting external communications or I/O.

The drive has detected an unknown drive rating. This implies a critical internal inconsistency where the drive cannot identify its own power or voltage characteristics, preventing safe and proper operation. This usually points to an internal hardware issue.

The drive has detected an unknown or incompatible power board. This means the control section cannot properly interface with the power section, leading to a complete failure to operate. This is a critical internal hardware fault.

An interruption in the internal serial link communication. This refers to communication between internal sub-components of the drive (e.g., control board and I/O board). This critical internal fault can lead to unpredictable behavior or complete operational failure.

An invalid industrialization zone has been detected. This is a factory-set parameter related to manufacturing origin or regional configuration. Such a fault indicates a deep internal inconsistency or potential tampering, preventing normal operation.

An unknown or incompatible option board has been detected. This means the drive cannot recognize or properly integrate an installed option card, rendering its functions unavailable and potentially preventing the drive from starting. Check compatibility carefully.

A detected error in the internal current measurement circuit. This is critical as the drive relies on accurate current feedback for motor control and protection. Inaccurate measurements can lead to incorrect torque, motor damage, or unstable operation.

A detected error in the input phase loss circuit. This indicates a problem with the drive's internal sensing of the incoming mains voltage phases, which is crucial for detecting power supply issues. This fault may falsely indicate a phase loss or miss a real one, impacting drive protection.

A CPU detected fault, indicating an internal error related to RAM, Flash memory, or task execution within the drive's central processing unit. This is a critical internal fault that will prevent the drive from functioning at all and requires immediate attention.

A thermal sensor detected error, indicating either an open circuit (OC) or short circuit (SC) in the internal thermal sensor circuit. This prevents the drive from accurately monitoring its internal temperature, risking overheating and damage if left unresolved.

A detected error with the line contactor (input contactor). This means the drive cannot properly connect to or disconnect from the incoming mains power. This can prevent the drive from starting or safely shutting down, posing a safety and operational risk.

Loss of the 4-20 mA signal on analog input AI3. This input is typically used for speed reference, feedback, or other critical process values. Loss of this signal will cause the drive to lose its reference, potentially leading to a stop or uncontrolled operation.

An overcurrent condition detected, indicating the motor current has exceeded the drive's protective limits. This can stem from mechanical overload, a short circuit in the motor/cabling, or an internal drive fault. Unresolved overcurrent can cause severe damage to the motor, drive, or mechanical system. This fault can be manually cleared if the 'Reset restricted fault configuration' (HrFC) parameter is set to 'Yes'.

The drive has detected an internal overheating condition. This occurs when the drive's internal temperature exceeds safe operating limits, often due to high ambient temperatures, blocked cooling fins, or failed cooling fans. Continued operation can lead to permanent damage to the drive's power components.

A torque overload detected by the drive. This indicates that the motor has been operating above its rated torque for an extended period, leading to a risk of overheating and damage to both the motor and the driven equipment. It's often related to a mechanical issue or an undersized motor/drive combination.

Indicates that the motor's thermal model in the drive has calculated an overload condition, suggesting the motor is operating too hot. This protection mechanism prevents motor winding damage due to excessive current over time. The fault typically clears after the motor has cooled down.

Detection of a single phase loss on the motor output. This can lead to unbalanced currents, motor vibration, and potential damage to the motor windings if operated in this condition. It is a critical fault indicating a broken connection or internal issue.

Detection of a complete loss of all three output phases to the motor. This means the drive is unable to supply power to the motor, resulting in no motor rotation. This could be due to a tripped motor contactor, severe wiring issue, or internal drive power stage fault.

An oversupply (mains overvoltage) detected fault. This means the incoming AC supply voltage to the drive has exceeded its safe operating limits. This condition can damage the drive's input stage components and internal DC bus capacitors if not promptly addressed.

Indicates an overbraking condition. This occurs when the motor is regenerating too much energy back into the drive, exceeding the drive's ability to dissipate it, often due to rapid deceleration or an overhauling load. This can cause the DC bus voltage to rise excessively, potentially damaging the drive.

A motor overheating detected error from a PTCL (Positive Temperature Coefficient Logic) standard product. This indicates that the PTC thermistor embedded in the motor windings has exceeded its trip temperature, signaling a critical motor overheating condition. Continuous operation will severely damage the motor.

Detection of a loss of one or more phases in the main input power supply to the drive. This causes unbalanced operation, potentially damaging the drive's input rectifiers or internal DC bus capacitors. The drive will trip to protect itself and upstream equipment.

A PTCL (Positive Temperature Coefficient Logic) detected error, indicating either an open circuit (OC) or short circuit (SC) in the PTC probe circuit connected to logic input LI6. This prevents the drive from accurately monitoring motor temperature, risking motor overheating.

A general safety function fault. This indicates that a critical safety-related event or malfunction has occurred, leading to a safe stop or shutdown. The specific cause requires further investigation of safety registers like SFFE or SAF1 for detailed information. This is a high-priority fault requiring careful investigation.

A hard detection of a motor short circuit. This is a severe fault indicating a direct short circuit between motor phases or from a phase to ground. This can cause immediate and significant damage to the drive's power stage and the motor. This fault can be manually cleared if the 'Reset restricted fault configuration' (HrFC) parameter is set to 'Yes'.

A hard detection of a direct ground short-circuit. This indicates a severe fault where a motor phase or internal component is directly shorted to earth ground. This condition poses a significant safety hazard and can cause severe damage to the drive. This fault can be manually cleared if the 'Reset restricted fault configuration' (HrFC) parameter is set to 'Yes'.

A hard detection of an IGBT short-circuit. This indicates a severe internal failure of the Insulated Gate Bipolar Transistor (IGBT) within the drive's power stage. This is a critical hardware fault that can cause catastrophic damage to the drive and is usually not field-repairable.

A hard detection of a load short-circuit during the Igon load sequence. This implies a short circuit condition was detected at the motor output during the drive's internal initialization or measurement sequence, indicating a problem with the motor or its wiring before full operation.

An interruption in Modbus local serial communication. This means the drive has lost communication with its Modbus master or other devices on the local serial network, preventing remote control, monitoring, or data exchange. This can lead to a loss of process control.

An interruption in communication with PC Software. This means the drive has lost its connection to a PC running configuration or monitoring software, preventing diagnostics, parameter changes, or firmware updates. This is typically a temporary issue during commissioning or maintenance.

An interruption in communication with the remote terminal (HMI). This means the drive has lost its connection to its human-machine interface, preventing local control, status monitoring, or parameter adjustments from the HMI. The drive may still operate if controlled externally.

An overspeed condition detected. This means the motor speed has exceeded a predefined maximum limit. This can be caused by an overhauling load, incorrect speed reference, or a feedback error. Overspeed can lead to mechanical damage, safety hazards, and motor/drive failure.

A loss of speed feedback has been detected. This means the drive is no longer receiving valid speed information from its encoder or resolver. This is critical for closed-loop speed control and can lead to unstable motor operation or a controlled shutdown. If left unresolved, accurate speed control is impossible.

A torque/current limitation detected fault. This indicates that the drive's output torque or current has hit its predefined limit, typically due to an overload condition or an attempt to accelerate too quickly. While a protection feature, persistent limitation can indicate an undersized system or mechanical issue.

A torque underload detected fault. This indicates that the motor is operating with significantly less load than expected, potentially pointing to a mechanical failure (e.g., broken belt, pump cavitation) or a material flow issue. While not immediately damaging, it signals an abnormal process condition.

An undervoltage condition detected. This means the incoming AC supply voltage or the internal DC bus voltage has dropped below safe operating limits. This can cause erratic drive behavior, loss of motor torque, and can indicate issues with the power supply. The drive will trip to protect itself.

Indicates a loss of one or more phases (3-phases) to the motor's brake. This fault can lead to uncontrolled motor movement if the brake fails to engage or disengage properly, posing a significant safety risk.

A detected error in the feedback signal from the brake contactor. This means the drive cannot reliably confirm the state (engaged or disengaged) of the motor brake, which can lead to safety interlock issues or unexpected motor behavior.

A detected error related to the dynamic characteristics of the load. This could be an unexpected change in motor load, resonance, or mechanical issues affecting the motor's operation, which the drive's control system cannot compensate for.

Indicates that no fault has been detected or is currently stored in the drive's fault list. This is the normal operating state when no errors are present, signifying healthy operation.

IGBT overheating detected. This means the temperature of the Insulated Gate Bipolar Transistors in the drive's power stage has exceeded safe limits. This is often caused by heavy loads, high ambient temperatures, or cooling system failure. Prolonged overheating can lead to permanent damage to the IGBTs.

An auto-tuning detected fault. This means the drive's automatic motor parameter identification process failed to complete successfully. This can be due to incorrect motor wiring, mechanical issues preventing free rotation, or incompatible motor characteristics. Without successful tuning, optimal motor control is not achieved.