Omron NJ/NX-series Machine Automation Controller

A hardware error was detected in the non-volatile memory, indicating a potential failure of the memory component itself. This can result in loss of stored configuration or operational data.

A hardware-related error occurred within the non-volatile memory, indicating a potential physical defect or corruption. This can impact critical system data storage for the E3X-series or E3NW-ECT units.

The current flowing through the converter exceeded the specified value. This fault indicates an excessive current draw, often caused by motor issues, wiring faults, or drive malfunction, posing a risk of component damage.

The current flowing through the converter exceeded the specified value. This fault indicates an overcurrent condition within the Intelligent Power Module (IPM) of the converter, often caused by similar issues to general overcurrent faults.

The Servo Drive regeneration drive Tr is faulty. This indicates a malfunction in the transistor (Tr) responsible for handling regenerative energy within the Servo Drive, which could impair braking performance.

A missing serial incremental encoder phase-Z pulse was detected. This means the encoder is not providing its reference zero-position pulse correctly, essential for accurate homing and absolute positioning.

A missing serial incremental encoder CTS signal logic error was detected. This fault indicates a problem with the Clear-To-Send (CTS) signal from the encoder, crucial for serial communication with the drive.

The node address that was read from the rotary switches was not between 00 and 99. This indicates an invalid network address configuration for the Servo Drive, preventing proper network communication.

The Servo Drive malfunctioned, or an error occurred in the Servo Drive. This is a general error indicating an unspecific malfunction within the Servo Drive, potentially due to noise or an internal self-diagnosis failure.

An error occurred in an active sensor connection, signifying that a sensor has become disconnected or communication has been interrupted. This prevents the system from receiving data from the affected sensor.

This error indicates a problem in the connection to a sensor, leading to a disruption in communications. It implies a physical connection issue or a fault in the sensor itself, affecting data exchange within the E3X-series Fiber Sensor system.

This error indicates that communication could not be established with a sensor, often because the sensor is not connected to the system. This prevents initial data exchange and operation.

This fault indicates that the system failed to establish communication with a connected sensor. This can happen if a sensor is not present or if its connection is faulty, preventing initial data handshake within the E3X-series Fiber Sensor system.

An error occurred in the EtherCAT slave communications controller. This fault indicates a problem with the EtherCAT communication interface on the slave device, potentially leading to loss of control or data exchange.

A disconnection was detected because communications between the encoder and the Servo Drive were stopped more frequently than the specified value. This signifies unreliable or interrupted communication with the encoder.

A general communications error occurred with the encoder, indicating that the system cannot reliably communicate with it. This could be due to power issues or electrical interference affecting the communication signal.

A communication error has occurred with the encoder, indicating an issue with data transmission or receipt. This can be caused by low power supply to the encoder or electrical interference (noise).

An error was detected in the data transmitted from the encoder, indicating corruption or incorrect values within the communication stream. This can lead to inaccurate position feedback or control issues.

An error was detected in the data transmitted from the encoder. This suggests corrupted data, potentially due to insufficient power supply or external noise during communication, impacting encoder feedback.

One or both of the photocouplers for safety inputs 1 and 2 have transitioned to an OFF state, triggering a safety error. This typically indicates an issue with the safety circuit integrity, such as a physical cable problem.

At least one of the input photocouplers for safety inputs 1 and 2 has turned OFF, indicating a potential safety circuit issue. This implies a broken or disconnected safety cable affecting the safety interlock.

Communication between the external encoder and the Servo Drive has been interrupted repeatedly beyond a specified threshold, indicating a persistent disconnection. This suggests a problem with the physical wiring.

A disconnection was detected in communications between an external encoder and the Servo Drive, occurring more frequently than the specified threshold. This points to an incorrect wiring setup for the external encoder, affecting motion control.

Data received from the external encoder contained errors, indicating a problem with the integrity of the communication. This could be due to an unstable power supply or electromagnetic interference.

An error occurred in the data communication from the external encoder. This issue is often related to an inadequate power supply to the external encoder or the presence of electrical noise, causing corrupted feedback.

Bit 00 of the external encoder's internal error code (ALMC) has been set to 1, indicating a specific error condition reported by the encoder itself. The exact nature of the fault depends on which bit is set.

Bit 00 of the external encoder error code (ALMC) was set to 1. This indicates a specific status or fault condition reported by the external encoder, requiring further investigation into the encoder's internal state.

Bit 01 of the external encoder's internal error code (ALMC) has been set to 1, indicating a specific error condition reported by the encoder itself. The exact nature of the fault depends on which bit is set.

Bit 01 of the external encoder error code (ALMC) was set to 1. This signifies a particular status or fault condition as reported by the external encoder, warranting a check of its operational diagnostics.

Bit 02 of the external encoder's internal error code (ALMC) has been set to 1, indicating a specific error condition reported by the encoder itself. The exact nature of the fault depends on which bit is set.

Bit 02 of the external encoder error code (ALMC) was set to 1, indicating a specific error or status from the external encoder. This requires reference to the encoder's documentation for detailed diagnosis.

Bit 03 of the external encoder's internal error code (ALMC) has been set to 1, indicating a specific error condition reported by the encoder itself. The exact nature of the fault depends on which bit is set.

Bit 03 of the external encoder error code (ALMC) was set to 1. This denotes a specific fault condition reported by the external encoder, requiring a lookup in the encoder's manual for precise meaning.

Bit 04 of the external encoder's internal error code (ALMC) has been set to 1, indicating a specific error condition reported by the encoder itself. The exact nature of the fault depends on which bit is set.

Bit 04 of the external encoder error code (ALMC) was set to 1, indicating a specific status or fault condition from the external encoder. Diagnosis requires consulting the encoder's dedicated manual.

Bit 05 of the external encoder's internal error code (ALMC) has been set to 1, indicating a specific error condition reported by the encoder itself. The exact nature of the fault depends on which bit is set.

Bit 05 of the external encoder error code (ALMC) was set to 1, signaling a specific error or status reported by the external encoder. Referencing the encoder's manual is crucial for troubleshooting this.

A fault, such as broken wiring, was detected specifically in the Phase-A connection of the external encoder. This issue directly impacts the encoder's ability to provide accurate positional feedback.

An error, such as broken wiring, was detected in the external encoder's phase-A connection. This indicates an issue with the electrical integrity of this specific phase connection, impacting encoder signal accuracy.

A fault, such as broken wiring, was detected specifically in the Phase-B connection of the external encoder. This issue directly impacts the encoder's ability to provide accurate positional feedback.

An error, such as broken wiring, was detected in the external encoder's phase-B connection. This points to a problem with the electrical integrity of this particular phase connection, affecting encoder signal quality.

An error such as broken wiring was detected in the external encoder phase-Z connection. This indicates a physical wiring issue with the external encoder's Z-phase signal, impacting its reference position detection.

Initialization of internal position data was not processed correctly in Semi-closed Control Mode and Absolute Value Mode. This implies a failure to correctly establish the encoder's initial position, affecting control accuracy.

Initialization of internal position data was not processed correctly in Fully-closed Control Mode and Absolute Value Mode. This is similar to the internal encoder error but specific to external encoders used in fully-closed loop systems.

An error was detected in the power module. This indicates a fundamental issue within the Servo Drive's power module, which could be due to external wiring problems or internal hardware failure.

An error was detected by the self-diagnosis of the safety function. This suggests a problem with the internal safety monitoring system of the device, which could be triggered by noise or a hardware malfunction.

A temperature monitoring circuit failure was detected on the main circuit. This indicates an inability to accurately monitor the temperature of the main circuit, which could lead to undetected overheating.

The rotation speed of the fan is 40% or less of the rating and the cooling performance decreases. This indicates a potential issue with the cooling system's efficiency, which can lead to overheating.

The regeneration processing was stopped to protect the Regeneration Resistor. This means the system halted regenerative braking to prevent damage to the resistor, potentially due to incorrect settings or overload conditions.

The main circuit power supply voltage (P-N voltage) exceeded the operation guarantee range. This indicates an unsafe voltage level in the main power circuit, which can damage components.

The encoder detected the temperature that exceeded the protection level of motor. This suggests the motor is operating under conditions that lead to excessive heat, risking damage to the motor windings and encoder.

The encoder detected a one-rotation counter error. This implies an issue with the encoder's ability to accurately count single rotations, affecting position feedback.

The encoder detected the overspeed. This means the motor rotated at a speed exceeding its operational limits, which can lead to mechanical stress or system instability.

The encoder detected a non-volatile memory error. This indicates a problem with data integrity or storage within the encoder's non-volatile memory, potentially impacting its configuration or calibration data.

The encoder detected a multi-rotation counter error. This fault points to an issue with the encoder's multi-rotation detection section, affecting the absolute positioning capability.

The main circuit power supply voltage fell below the operation guarantee range during Servo ON. This signifies that the Servo Drive did not receive adequate power, which can lead to unpredictable operation or shutdowns.

The current drawn by the motor has surpassed a predetermined protection threshold, indicating an excessive load or electrical anomaly within the motor or its wiring. This can cause damage to the motor or drive.

The current flowing to the motor exceeded the protection level, indicating an excessive load or electrical fault. This can result in damage to the motor or Servo Drive if not addressed promptly.

A loss of communication has been detected between the encoder and the Servo Drive. This indicates a physical or electrical interruption in the encoder feedback loop, which can prevent motor control.

A communication disconnection was detected between the encoder and the Servo Drive. This indicates a loss of signal, potentially due to cable issues, power problems, or encoder failure, leading to loss of position feedback.

The Servo Drive received illegal or corrupted data from the encoder multiple times, exceeding a specified error threshold. This suggests a problem with data integrity during communication, possibly due to electrical interference or power issues.

Illegal data was received from the encoder a specified number of times, indicating corrupted or invalid communication signals. This can be caused by noise, signal line issues, or insufficient power to the encoder, leading to inaccurate position data.

A hardware error was detected within the non-volatile memory, potentially indicating a component failure or corruption caused by severe electrical noise during data access. This can lead to loss of persistent data.

An error occurred in the non-volatile memory hardware, which stores critical system data. This can be a physical failure or a false detection caused by excessive noise during data reads, impacting stored parameters.

An integrity check failed for the control parameters stored in non-volatile memory, indicating potential corruption of essential configuration data. This can lead to incorrect system operation.

An error occurred in the control parameters stored in non-volatile memory. This typically signifies data corruption within the system's stored configuration, potentially due to electrical noise.

The object area data in non-volatile memory is corrupted. This signifies data integrity issues within the non-volatile memory of the device, which could affect configuration or operational parameters.

The absolute encoder's multi-rotation counter detected an error, indicating a discrepancy in its tracking of motor rotations. This can be caused by environmental factors or an internal encoder malfunction.

The absolute encoder detected an error in its multi-rotation counting function. This is often caused by temporary issues like vibration, impact, condensation, or an internal encoder failure, leading to incorrect absolute position.

The system detected a critical error, either through its self-diagnosis of hardware or due to a fatal software malfunction. This indicates a severe internal problem that could be triggered by noise or component failure.

A critical hardware error detected during self-diagnosis or a fatal software error has occurred within the system. This indicates a severe internal malfunction, possibly due to noise or a hardware defect, requiring immediate attention.

Corrupted data was detected in the non-volatile memory. This error typically occurs if power is interrupted or significant electrical noise is present during critical data saving operations, such as parameter storage or motor identity information.

An error was detected in data saved in the non-volatile memory. This can be caused by power interruptions or noise during the process of saving parameters, including safety or motor identity information, leading to corrupted settings.

The currently connected motor is incompatible with the Servo Drive, indicating an incorrect pairing. This mismatch prevents the Servo Drive from properly controlling the motor and can lead to operational issues or damage.

The connected motor and Servo Drive combination is incorrect or incompatible. This mismatch prevents proper operation and could lead to damage or inefficient performance of the motor system.

The system detected a mismatch between the configured number of sensors and the actual number of sensors physically connected. This discrepancy prevents correct system operation based on expected sensor inputs.

The number of connected sensors does not match the configured settings within the system. This error highlights a mismatch between the expected and actual sensor count for E3X-series Fiber Sensors.

The total number of sensors connected to the system exceeds the maximum allowable limit. This overload can cause system instability or prevent proper initialization.

The system has detected that more E3X-series Fiber Sensors are connected than the maximum allowed limit. This fault prevents proper operation due to an overload of sensor inputs.

During power-up, the system detected a reduction in the number of Distributed Sensor Units compared to the expected configuration. This typically means one or more distributed sensor units are no longer connected or operational.

The count of Distributed Sensor Units detected at power-up is lower than expected. This suggests a disconnection or failure of one or more Distributed Sensor Units within the E3NW-ECT system.

This fault indicates that the total number of connected sensors exceeds the E3NW-ECT system's maximum allowable limit. This is typically observed when the system's capacity for sensor inputs is exceeded.

The actual number of connected sensors does not match the configured settings within the E3NW-ECT system. This discrepancy prevents correct system operation and sensor identification.

The number of sensors connected to a specific Distributed Sensor Unit exceeds its maximum capacity. This overload can lead to communication failures or incorrect sensor readings for that unit.

More sensors are connected to a Distributed Sensor Unit than its specified maximum capacity. This overloading impacts the functionality and communication of the unit within the E3NW-ECT system.

An excessive number of dummy units are configured, which prevents real sensors from being assigned necessary logical unit numbers. This configuration error impacts the system's ability to properly recognize and utilize actual sensors.

Too many Dummy Units have been configured, preventing some actual sensors from being assigned logical unit numbers. This misconfiguration leads to operational issues for active sensors in the E3X-series system.

The PDO mapping for CNC instructions is incorrect. This means required Process Data Objects are not properly configured or the instruction is used with an incompatible device.

The CNC coordinate system specified for the Coord in-out variable in a CNC instruction does not exist. This indicates a programming or configuration error where a non-existent coordinate system is referenced.

The parameter specified for the Deceleration input variable to a CNC instruction is out of range. This occurs when an instruction input parameter exceeds its valid numerical limits.

IO-Link device configuration information was created. This is an informational event indicating that new configuration data for an IO-Link device has been successfully generated or stored.

The NX Unit detected that the I/O power supply was turned ON. This is an informational event confirming the successful detection of the I/O power supply status by the NX Unit.

A warning-level event occurred in the IO-Link device. This indicates a non-critical event or a condition that requires attention in the IO-Link device, often a precursor to a more severe fault.

An error code was reported by a slave device when a Slave Error Detected (77860000 hex) error occurred. This is a secondary error indicating that a more specific error originated from an EtherCAT slave.

This event provides internal information from the CNC Function Module. It is recorded to provide additional information for another event and is typically informational.

The velocity control command value for the servo drive is saturated. This occurs when the command exceeds the maximum velocity setting or the motor's actual motion cannot keep up with the command.