SEW Eurodrive MCBSM

Immediate switch-off with inhibit. This fault occurs if an incorrect option card is used, the setpoint/control signal source or operating mode is not permitted for the option card, or a required option is entirely missing. This prevents proper system functionality and operation, necessitating a restart after correction.

Immediate switch-off with inhibit. This indicates a fault in the system software sequence, possibly due to electrical noise or an internal software malfunction. This can lead to unstable operation and requires attention to prevent recurrence.

Immediate switch-off with inhibit. This signifies a general system malfunction, likely a software-related issue or an internal processing error. Such faults can disrupt operations and may indicate a deeper internal problem.

Stop without inhibit due to an interruption in the connection between the inverter and the PC. This prevents remote monitoring or control via RS-485, leading to a loss of communication capability.

Immediate switch-off with inhibit because the unit utilization (Ixt value) has been exceeded. This indicates the inverter is being overloaded for an extended period, which can cause overheating and potential damage to the power stage if not addressed.

Immediate switch-off with inhibit due to an error during the inverter's initialization process. This suggests an internal fault preventing the unit from starting up correctly, indicating a fundamental problem with the inverter's internal state.

Stop without inhibit due to a fault during communication via the system bus. This indicates a loss of communication with other connected devices on the system bus, disrupting coordinated control and data exchange.

Stop with inhibit due to a system malfunction related to the IPOS control word. This suggests an issue with the internal IPOS program execution or its interaction with the inverter's control, potentially leading to incorrect or halted program logic.

Immediate disconnection indicating an internal unit fault, specifically defective RAM. This is a critical hardware failure within the inverter's control board, making the unit inoperable.

Immediate switch-off with inhibit, specifically in "VFC hoist" operating mode. The motor could not be supplied with the correct current during pre-magnetizing time, possibly due to rated motor power being too small for the inverter or undersized motor cables. This prevents proper motor startup and can stress the inverter.

Immediate switch-off with inhibit, specifically in "VFC hoist" operating mode. Two or all output phases to the motor are interrupted, or the rated motor power is too small for the inverter. This prevents proper motor operation and can cause severe damage to the inverter's output stage.

The motor's utilization is too high, causing a stop with inhibit. This indicates the motor is being overloaded, potentially leading to overheating, winding damage, or premature failure if the high load condition persists.

Immediate switch-off with inhibit due to a defective EEPROM. This is an internal hardware fault within the unit, indicating corrupted or unreadable configuration data storage. The inverter cannot operate reliably without valid EEPROM data.

Immediate switch-off with inhibit. This fault occurs if the parameter module is removed or the unit is switched off/on during a copying process. This leads to incomplete or corrupted data transfer, making the system configuration unreliable.

Immediate disconnection due to an internal unit fault, specifically a defective flash memory. This indicates a critical hardware failure where the inverter's operating firmware or critical data cannot be read correctly. The unit is inoperable.

A vibration sensor (DUV10A) is signaling a warning, indicating unusual vibration levels in the drive. The system can continue operation for now, but the underlying cause of vibrations needs to be determined and addressed to prevent escalation to a critical fault and potential equipment damage.

Rapid stop initiated because the vibration sensor signals a fault. This indicates significant and potentially damaging oscillations in the drive system, which can lead to mechanical failure, premature wear, or unsafe operating conditions if not immediately resolved.

The oil aging sensor is issuing a warning, indicating that the gear unit oil is beginning to degrade and reach the end of its service life. While operation can continue, an oil change is becoming necessary to prevent further degradation and potential damage to the gear unit.

The oil aging sensor signals a fault, indicating that the gear unit oil has degraded to a critical level. Continued operation with aged oil can lead to premature wear of gears and bearings, increased friction, and eventual gear unit failure.

The oil aging sensor signals an over-temperature condition in the gear unit oil. High oil temperatures accelerate degradation, reduce lubrication effectiveness, and can cause damage to the gear unit components and seals.

The oil aging sensor is not ready for operation, meaning it's unable to provide valid status information regarding oil condition. This could be due to a power supply issue or a malfunction within the sensor itself, leaving the system unprotected from oil-related issues.

The brake lining wear sensor indicates that the brake lining is worn down. Worn brake linings reduce braking effectiveness, increase stopping distances, and can lead to mechanical failure or unsafe conditions if not replaced promptly.

The duration of operation below 5 Hz has been exceeded, which is critical for "Ex-e protection" compliance in hazardous environments. Prolonged operation at low frequencies can lead to motor overheating in certain certified motors, potentially creating an ignition risk.

The AI1 analog input is detected as an open circuit, meaning there's no signal or connection present. This prevents proper control or feedback based on the analog input, leading to loss of control or incorrect operation if that input is active.

A communication timeout has occurred with the MOVI-PLC, leading to a rapid stop or warning. This indicates a loss of control or data exchange with the PLC, which can halt automated processes or cause unsafe operating conditions.

An overcurrent condition has occurred at the inverter's output, leading to an immediate switch-off with inhibit. Possible causes include a short circuit, inappropriate motor sizing, or switching the output stage while inhibited. This fault can damage the inverter's output stage if not resolved.

A ground fault has been detected in the motor, its supply lead, or within the MOVITRAC® B inverter itself, causing an immediate switch-off with inhibit. This is a critical safety and equipment protection issue. Unresolved ground faults can lead to severe damage or safety hazards.

This fault indicates an issue with the braking resistor circuit, such as excessive regenerative power, an interrupted or short-circuited braking resistor, or incorrect resistor value. It can also be triggered by a defective brake chopper or a ground fault in the circuit. Failure to address this can lead to DC link overvoltage or inadequate braking performance.

A phase failure in the 3-phase mains supply or an under-voltage condition has occurred, leading to an immediate switch-off with inhibit. This protects the inverter from operating with an unbalanced or insufficient power supply. Continuous operation under these conditions can stress and damage the inverter and motor.

The DC link voltage within the inverter has risen above safe operating limits, triggering an immediate shutdown with inhibit. This is typically caused by excessive regenerative energy from the motor during deceleration, an issue with the braking resistor, or a ground fault. Persistent overvoltage can damage the inverter's power stage.

The inverter's current controller is working at its set limit due to conditions like mechanical overload, phase failure in the mains or motor, or exceeding the maximum speed for VFC operating modes. This fault indicates the drive is struggling to maintain its commanded speed or torque. Unresolved, it can lead to motor and inverter overheating.

This fault indicates that the inverter has not been correctly started up or an unknown/incorrect motor type has been selected. Without proper initialization and motor parameterization, the inverter cannot operate the drive effectively or safely. It prevents the system from entering an operational state.

An IPOS program execution fault has occurred, caused by an incorrect command, invalid conditions during program run, or an attempt to use a function not implemented in the inverter. This can lead to unexpected program behavior and a halt of drive operation, impacting automation sequences.

The inverter has detected a thermal overload, indicating its internal temperature has exceeded safe operating limits. This is typically due to excessive load, insufficient cooling, or potentially an improperly installed braking resistor. Prolonged operation at high temperatures can severely reduce the lifespan of inverter components.

An internal system malfunction has occurred within the inverter electronics, potentially influenced by electromagnetic compatibility (EMC) issues. This fault causes an immediate switch-off and inhibits operation, signifying a critical internal hardware or software problem that requires expert attention.

An internal system malfunction has occurred within the inverter electronics, potentially influenced by electromagnetic compatibility (EMC) issues. This fault causes an immediate switch-off and inhibits operation, signifying a critical internal hardware or software problem that requires expert attention.

An internal system malfunction has occurred within the inverter electronics, potentially influenced by electromagnetic compatibility (EMC) issues. This fault causes an immediate switch-off and inhibits operation, signifying a critical internal hardware or software problem that requires expert attention.

An internal system malfunction has occurred within the inverter electronics, potentially influenced by electromagnetic compatibility (EMC) issues. This fault causes an immediate switch-off and inhibits operation, signifying a critical internal hardware or software problem that requires expert attention.

An internal system malfunction has occurred within the inverter electronics, potentially influenced by electromagnetic compatibility (EMC) issues. This fault causes an immediate switch-off and inhibits operation, signifying a critical internal hardware or software problem that requires expert attention.

An internal system malfunction has occurred within the inverter electronics, potentially influenced by electromagnetic compatibility (EMC) issues. This fault causes an immediate switch-off and inhibits operation, signifying a critical internal hardware or software problem that requires expert attention.

An internal system malfunction has occurred within the inverter electronics, potentially influenced by electromagnetic compatibility (EMC) issues. This fault causes an immediate switch-off and inhibits operation, signifying a critical internal hardware or software problem that requires expert attention.

An internal system malfunction has occurred within the inverter electronics, potentially influenced by electromagnetic compatibility (EMC) issues. This fault causes an immediate switch-off and inhibits operation, signifying a critical internal hardware or software problem that requires expert attention.

A fault occurred during access to the inverter's EEPROM, which is critical for storing configuration parameters. This can result in corrupted settings, loss of parameters, or an inability to save changes, making the inverter unreliable or inoperable. It may indicate a hardware issue with the EEPROM.

An external fault signal has been read in via a programmable input terminal. This indicates a problem or alarm originating from an external device or system connected to the inverter. The inverter's response to this signal is configurable, but it signals an issue outside its direct control.

The motor's TF/TH thermal sensor has tripped, indicating the motor is overheating, or there's an issue with the sensor connection. Possible causes include a disconnected, incorrectly wired sensor, or an interrupted connection between the MOVITRAC® B and the sensor. Continued operation with an overheated motor risks severe winding damage.

A violation of IPOS programming principles has caused an internal stack overflow within the inverter. This typically points to a logic error, an excessively complex program, or inefficient resource usage in the user's IPOS program. It can lead to unpredictable program execution or inverter crashes.

The drive has exceeded its set stop ramp time, meaning it took longer than programmed to decelerate and come to a stop. This fault triggers an immediate switch-off with inhibit, often due to insufficient ramp time settings relative to the load or braking capability. This can result in poor control and mechanical stress if not corrected.

An incorrect operating mode or parameter set has been selected for an Ex-e motor application, or the frequency points or current limits are improperly configured. This fault is crucial for maintaining safety with explosion-protected motors, preventing operation under non-compliant or potentially hazardous conditions.

The DC link voltage has exceeded its switch-off threshold, typically due to excessive regenerative power from the motor (e.g., during deceleration) when no braking resistor is connected or if deceleration ramps are too short. This can damage the inverter's power stage and other components if sustained.

The drive did not reach the start/stop speed within a specified time period, indicating that the set ramp is too short for the actual load or the drive system's capabilities. This can lead to uncontrolled stopping or startup, potentially causing mechanical stress or safety issues.