Schneider Electric Altivar 32

A fault indicating that the brake release current was not reached, or the brake engage frequency threshold was not set while brake control was assigned. This points to an issue within the motor's braking system or its configuration, potentially preventing the brake from operating correctly.

This fault indicates that the current configuration loaded into the drive is inconsistent, possibly due to the addition or removal of an option card without proper configuration updates. An inconsistent configuration can lead to unpredictable drive behavior, prevents proper operation, or can cause other faults. This needs to be resolved before the drive can function reliably.

This fault indicates that the configuration loaded into the drive via the serial link (e.g., Modbus, USB) is inconsistent or invalid. This can occur if a configuration file from a different drive model or an corrupted file is loaded. If an invalid configuration is used, the drive will not operate correctly, potentially leading to system instability, unexpected movements, or damage to connected equipment.

This fault indicates a communication error detected on the installed communication option card (e.g., CANopen, DeviceNet, Profibus). The specific fault code values often depend on the particular network card and its configuration. The fault code remains saved even if the cause temporarily disappears and only resets after a power cycle. Persistent communication faults will prevent proper network control of the drive, leading to system shutdown or loss of automation.

This fault indicates a detected communication error on the CANopen communication card. This can be caused by wiring issues, incorrect CANopen node settings, or problems with the CANopen master device. Without resolving this, the drive will lose its CANopen network control capabilities, halting automated operation and remote diagnostics.

A fault related to the capacitor precharge circuit, either due to a control issue with the precharge relay or a damaged precharge resistor. This fault prevents the drive from powering up correctly, indicating a critical internal hardware failure.

An internal EEPROM memory fault has occurred within the drive. This indicates a potential issue with the drive's non-volatile memory, which stores configuration and operating data, possibly leading to data corruption or loss.

This fault is triggered by an external condition or device connected to a logic input configured for external fault detection. This input is typically connected to a safety circuit, thermal switch, or another protective device. If the external fault condition persists, the drive will remain in a fault state, preventing operation until the external issue is cleared, ensuring machine and personnel safety.

An internal fault has occurred due to an unknown rating. This suggests a fundamental internal issue within the drive's control or power section, making the drive unable to determine its operational parameters correctly.

An internal fault indicating that the Human Machine Interface (HMI) card is either not recognized, incompatible, or its display is absent. This prevents local operator interaction and monitoring, hindering diagnostics and control.

An internal EEPROM memory fault has been detected within the drive. This indicates an issue with the non-volatile memory storing critical configuration and operational data, which could lead to data corruption or incorrect drive behavior.

An internal fault related to the Industrial EEPROM memory has been detected. This suggests a problem with a critical memory component responsible for storing firmware or essential drive parameters, affecting the drive's core functionality.

This fault indicates a loss of the 4-20 mA current signal, which is typically used for speed reference, feedback, or other control inputs. This can be due to a broken wire, sensor failure, or a disconnected control device. Without a valid 4-20 mA signal, the drive may operate erratically, stop, or use a fallback value, leading to loss of critical control or incorrect motor speed.

This fault indicates a DC bus overvoltage condition, most commonly caused by the motor regenerating energy back to the drive, such as during rapid deceleration or when driving an inertial load. If the regenerated energy cannot be dissipated, it can cause the DC bus voltage to rise above safe limits. Persistent overvoltage can stress and damage the drive's power stage components (e.g., IGBTs).

An overcurrent condition has been detected, which can be caused by incorrect drive parameters, excessively high inertia or load, or a mechanical locking of the motor. This fault protects both the motor and drive from damage due to excessive current draw.

This fault signifies that the drive's internal temperature has exceeded its safe operating limits, indicating insufficient cooling, a blocked heatsink, or an excessive load condition. Continuous operation in an overheated state will lead to accelerated wear and potential failure of drive components (e.g., capacitors, power semiconductors). Prolonged overheating can result in complete drive breakdown.

This fault is triggered by an excessive motor current or an incorrect [Cold stator resist.] (rSC) parameter value. If the motor is continuously overloaded or the thermal protection settings are wrong, it can lead to motor damage due to overheating. Prompt resolution is crucial to prevent premature motor failure.

This fault indicates a loss of one or more phases at the drive output, often due to an open output contactor, a disconnected motor, or a motor with insufficient power. It can also be triggered by instantaneous instability in the motor current. If not addressed, the motor will operate inefficiently or fail to run, potentially leading to motor winding damage due to unbalanced currents.

This fault occurs when the incoming line voltage supplied to the drive is too high or the line supply is disturbed by transient spikes. Persistent overvoltage conditions can stress and damage the drive's internal power components, reducing its lifespan. Immediate action is required to protect the drive.

This fault signifies that the drive is incorrectly supplied, has a blown fuse on one phase, or is a three-phase ATV312 unit mistakenly used on a single-phase line supply. It can also be caused by an unbalanced load and typically only operates when the drive is under load. Unresolved input phase loss can lead to drive component stress, rectifier failure, and prevents proper operation.

A short-circuit or grounding fault has occurred at the drive output, or significant ground leakage current is detected (especially with multiple motors). This indicates a severe electrical fault in the motor or its cabling, risking immediate damage to the drive and motor.

This fault indicates an interruption in communication on the Modbus bus or a disconnected remote display terminal when [HMI command] (LCC) is enabled. If communication is not restored, remote control and monitoring capabilities will be lost, potentially leading to operational delays or safety issues if critical information cannot be exchanged with the control system.

The motor has exceeded its programmed maximum speed or the drive has detected an unstable speed condition, possibly due to a driving load that forces the motor beyond its setpoint. This can lead to mechanical damage or loss of control.

An auto-tuning process has failed, likely due to using a special motor, a motor whose power is unsuitable for the drive, or the motor not being properly connected during the auto-tuning sequence. This prevents the drive from accurately characterizing the motor.

This fault indicates an insufficient incoming line supply voltage, a transient voltage dip, or a potential issue with the drive's internal precharge resistor. If the voltage drops below the drive's operational threshold, it will be unable to operate reliably or at all, causing unexpected shutdowns and potential component stress. Sustained undervoltage can prevent motor start-up or lead to erratic performance.