ABB ACS880 Primary Firmware

The encoder has detected an internal error related to its position counter. This indicates a problem with the encoder's ability to accurately track position, which can lead to inaccurate motor control or positioning if unresolved.

The encoder has detected an unspecified internal error. This signifies a general malfunction within the encoder hardware or firmware, compromising its functionality. Without resolution, motor control and feedback will be unreliable.

The drive trips on this fault when an earth fault or significant current unbalance is detected in the motor or motor cable. This indicates a severe insulation breakdown or a direct short to ground, posing a risk of equipment damage, electric shock, or fire.

The drive trips when a motor phase loss is detected. This indicates an interruption in one or more phases supplying power to the motor, which can cause motor overheating, damage, or inefficient operation if not addressed.

A main cooling fan fault has been detected in the inverter unit. This indicates a failure in the drive's primary cooling system. While other fans may compensate and switching frequency might be reduced, prolonged operation with a main fan fault risks overheating and damage to the drive.

An auxiliary fan fault has been detected; the auxiliary fan is not running. This compromises secondary cooling. The drive trips after a 2-minute suppression period during power-up, during which it only issues a warning. Continued operation without auxiliary cooling can lead to overheating.

A reference source is simultaneously connected to multiple parameters with different units, causing a configuration conflict. This inconsistency prevents correct signal processing and can lead to incorrect drive operation. Refer to warning A6DA for detailed information.

Communication has been lost on the embedded fieldbus (EFB). This means the drive is no longer receiving or sending data to the fieldbus master, leading to loss of control or monitoring via the fieldbus. Critical control functions may be disrupted.

The embedded fieldbus (EFB) configuration file could not be read by the drive. This prevents the EFB protocol from initializing correctly. The fieldbus communication will not function, and the drive cannot be controlled via EFB.

The embedded fieldbus (EFB) parameter settings are inconsistent or not compatible with the selected protocol. This prevents the EFB from operating correctly, leading to communication failure. Reviewing and correcting parameter settings is crucial.

The embedded fieldbus (EFB) protocol firmware could not be loaded, or there's a version mismatch between the EFB protocol firmware and the drive firmware. This means the EFB functionality is completely disabled. The drive cannot communicate via EFB.

An internal fault indicating an overflow in the text data buffer. This is an internal software or memory issue within the drive. If persistent, it suggests a deeper problem that could affect drive stability and operation.

An internal fault indicating an overflow in a 32-bit text table. This is an internal software or memory issue within the drive. If persistent, it suggests a deeper problem that could affect drive stability and operation.

An internal fault indicating an overflow in a 64-bit text table. This is an internal software or memory issue within the drive. If persistent, it suggests a deeper problem that could affect drive stability and operation.

An internal fault indicating an overflow related to text files. This is an internal software or memory issue within the drive. If persistent, it suggests a deeper problem that could affect drive stability and operation.

Communication between the drive and an option module has been lost. This means the functionality provided by that specific option module is unavailable. The drive may continue to operate but without the features of the affected module.

The control panel (or PC tool) has stopped communicating with the drive. This prevents operator interaction and monitoring through the panel. If communication is not restored, local control and diagnostics are unavailable. The auxiliary code specifies the I/O port affected.

The drive trips on this fault when communication to an I/O extension module fails. This is a critical communication failure that will halt drive operation, preventing proper control, command execution, and potentially causing significant process downtime.

An attempt was made to use a saved control panel reference in multiple control modes simultaneously, which is not permitted. The control panel reference can only be saved for one reference type at a time. This prevents correct reference assignment.

The motor has not stopped within the maximum allowed time after an emergency stop command (Off1 or Off3 mode) was issued. This indicates a failure in the emergency braking sequence, which could lead to unsafe operation if the system cannot stop as expected. The drive trips and coasts to a stop.

The supply unit (LSU) did not become ready (e.g., main contactor/breaker closing) within the expected timeframe. This indicates a problem with the LSU's pre-charging or readiness sequence. The drive cannot operate without a ready supply unit.

The selected signal has fallen below the user underload curve, indicating an underload condition. This often means the motor is running without sufficient mechanical load or there's a problem with the process being controlled. Sustained underload can waste energy or indicate a process issue.

The selected signal has exceeded the user overload curve, indicating an overload condition. This often means the motor is under too much mechanical stress or there's a problem with the process being controlled. Sustained overload can lead to motor damage or premature wear.

An analog input signal is outside the limits specified for that input (under minimum or above maximum). This indicates a problem with the sensor, wiring, or the signal source itself. Incorrect analog input can lead to incorrect process control or drive operation.

A fault generated by the signal supervision 1 function, indicating that a monitored signal has violated its defined limits or conditions. This signifies an abnormal condition in a specific process signal that the drive is supervising. Unresolved, it can lead to incorrect operation or safety issues.

A fault generated by the signal supervision 2 function, indicating that a monitored signal has violated its defined limits or conditions. This signifies an abnormal condition in a specific process signal that the drive is supervising. Unresolved, it can lead to incorrect operation or safety issues.

A fault generated by the signal supervision 3 function, indicating that a monitored signal has violated its defined limits or conditions. This signifies an abnormal condition in a specific process signal that the drive is supervising. Unresolved, it can lead to incorrect operation or safety issues.

A fault has occurred in an external device connected to the drive's external event input 1. This general fault indicates a critical issue with peripheral equipment that the drive is monitoring and requires immediate attention. The drive will trip to protect itself or the process.

A fault has occurred in an external device connected to the drive's external event input 2. This general fault indicates a critical issue with peripheral equipment that the drive is monitoring and requires immediate attention. The drive will trip to protect itself or the process.

The drive generates a warning when an earth fault or current unbalance is detected in the motor or motor cable. This indicates a potential insulation degradation or leakage current to ground, which requires investigation to prevent a full fault trip or safety hazard.

A main cooling fan fault has been detected in the inverter unit. This indicates a failure in the drive's primary cooling system. While other fans may compensate and switching frequency might be reduced, prolonged operation with a main fan fault risks overheating and damage to the drive. The drive generates a warning and attempts to continue operation.

An auxiliary fan fault has been detected; the auxiliary fan is not running. This compromises secondary cooling. During power-up, the drive only generates this warning for two minutes before potentially tripping if the fault persists. Continued operation without auxiliary cooling can lead to overheating.

No feedback has been received from the external motor fan. This indicates that the fan may not be operating, leading to potential motor overheating if cooling is insufficient. The drive may continue operation, but motor thermal protection could eventually trip it.

An error in temperature measurement from a KTY or PTC sensor connected to encoder interface FEN-xx has occurred. This could be due to incorrect parameter settings or using an unsupported sensor type (e.g., KTY on FEN-01). Inaccurate temperature feedback risks motor overheating or improper thermal protection.

The motor current is too high, indicating an overload condition on the motor. This can lead to motor overheating, winding damage, and reduced motor lifespan if sustained. The drive will eventually trip to protect the motor.

The brake resistor is either broken or not connected. This means the drive cannot dissipate regenerative energy, which can lead to overvoltage faults when decelerating or braking. The drive's ability to stop or manage energy is compromised.

The brake resistor temperature has exceeded the warning limit defined by parameter 43.12. This indicates the resistor is overheating, potentially due to excessive braking duty or improper dimensioning. Continued operation risks damage to the resistor or associated components.

One or more of the brake resistor data settings (parameters 43.08 … 43.10) are incorrect or missing. This prevents the drive from correctly calculating brake resistor operation and protection. Incorrect data can lead to improper braking or resistor damage.

The speed feedback configuration has changed or is inconsistent. The auxiliary code provides details on the specific encoder interface module and encoder affected, and the nature of the problem. This can lead to incorrect speed control or motor operation.

The drive generates a warning when communication to an I/O extension module fails. This indicates a disruption in the control signal flow between the drive and its peripheral I/O, potentially affecting system operation and control accuracy.

The control panel (or connected PC tool) has lost communication with the drive. This prevents operator interaction and monitoring through the panel. If communication is not restored, local control and diagnostics are unavailable.

This warning is generated by an on-time timer or a value counter, likely indicating a scheduled maintenance alert for the motor bearings. It signals that a predefined operating threshold has been met, suggesting a need for inspection or service. Ignoring this could lead to bearing failure and motor damage.

This warning is triggered by an edge counter, implying a monitoring function for an output relay has reached a programmed limit or detected an unexpected edge transition. It likely indicates an issue with the relay's operation or a need for inspection. Unresolved, this could affect controlled equipment.

Warning generated by on-time timer 1, indicating that a predefined operational time limit has been reached or exceeded. This often serves as a maintenance reminder or an alert for extended operation. Failure to address could lead to component wear or overdue service.

Warning generated by on-time timer 2, indicating that a predefined operational time limit has been reached or exceeded. This often serves as a maintenance reminder or an alert for extended operation. Failure to address could lead to component wear or overdue service.

Warning generated by edge counter 1, indicating that a specific number of events (edges) has been detected or a threshold has been crossed. This is typically used for monitoring operations, component life, or sequence integrity. Ignoring this could lead to unexpected behavior or component failure if a limit is exceeded.

Warning generated by edge counter 2, indicating that a specific number of events (edges) has been detected or a threshold has been crossed. This is typically used for monitoring operations, component life, or sequence integrity. Ignoring this could lead to unexpected behavior or component failure if a limit is exceeded.

Warning generated by value counter 1, indicating a predefined count threshold has been reached for a monitored value. This is often used for tracking production cycles, material usage, or other process-related counts. Overlooking this could lead to process deviations or component wear.

Warning generated by value counter 2, indicating a predefined count threshold has been reached for a monitored value. This is often used for tracking production cycles, material usage, or other process-related counts. Overlooking this could lead to process deviations or component wear.

A fault has occurred in an external device connected to the drive's external event input 1. This general warning indicates an issue with peripheral equipment that the drive is monitoring. The drive continues to operate, but the external device needs attention.

A fault has occurred in an external device connected to the drive's external event input 2. This general warning indicates an issue with peripheral equipment that the drive is monitoring. The drive continues to operate, but the external device needs attention.

A fault has occurred in an external device connected to the drive's external event input 3. This general warning indicates an issue with peripheral equipment that the drive is monitoring. The drive continues to operate, but the external device needs attention.

A fault has occurred in an external device connected to the drive's external event input 4. This general warning indicates an issue with peripheral equipment that the drive is monitoring. The drive continues to operate, but the external device needs attention.

A fault has occurred in an external device connected to the drive's external event input 5. This general warning indicates an issue with peripheral equipment that the drive is monitoring. The drive continues to operate, but the external device needs attention.

The supply unit generates a warning when an earth fault or current unbalance is detected. This indicates a potential insulation issue within the supply unit's power circuit or its input cabling, requiring attention to prevent a full fault trip or damage.

DDCS (fiber optic) communication between converters (e.g., inverter unit and supply unit) has been lost. The inverter unit will continue operating based on the last received status, but synchronized operation and full diagnostics are compromised. Loss of communication can lead to system instability or incorrect power flow.

The supply unit (or another converter) has generated a warning. The auxiliary code specifies the original warning code from the supply unit's control program. This indicates a problem on the line-side of the system, which could affect the entire drive operation.

The drive is entering sleep mode as part of its process PID control function. This is an informative warning, indicating normal operation when conditions allow for energy saving. It does not signify a fault requiring intervention.

The speed controller autotune routine did not complete successfully. The auxiliary code provides details, such as the drive being stopped prematurely. This means the speed controller may not be optimally tuned, leading to suboptimal motor performance.