SEW Eurodrive MOVITRAC 07B System
41 fault codes documented
Overcurrent
An immediate switch-off with inhibit occurs due to excessive current at the inverter output. This can indicate a short circuit, incorrect switching while the output stage is inhibited, an oversized motor for the inverter, or a faulty output stage.
Ground fault
An immediate switch-off with inhibit occurs due to a ground fault. This can be caused by a ground fault in the motor, the inverter itself, or the motor supply lead. It may also be a symptom of an overcurrent condition.
Brake chopper
An immediate switch-off with inhibit due to issues with the brake chopper. This can be caused by excessive regenerative power, an interrupted or short-circuited braking resistor circuit, an improperly high braking resistance, a defective brake chopper, or a ground fault.
Line phase failure
An immediate switch-off with inhibit, only for 3-phase inverters, indicating a missing phase in the line supply or an insufficient line voltage.
DC link overvoltage
An immediate switch-off with inhibit occurs when the DC link voltage is excessively high. This often results from too much regenerative power, issues with the braking resistor circuit (supply cable or resistance value), or a ground fault.
Speed monitoring
An immediate switch-off with inhibit occurs when the current controller operates at its set limit, indicating issues such as mechanical overload, line phase failure, motor phase failure, or exceeding the maximum speed in VFC operating modes. Parameter P501 is relevant for deceleration time.
Startup
An immediate switch-off with inhibit occurs if the inverter has not been properly started up or an unknown motor type has been selected, preventing correct operation.
IPOS-ILLOP
A stop with inhibit occurs during IPOS program execution. This indicates a wrong command, incorrect conditions, or an unsupported function within the inverter's IPOS environment, leading to a program execution error.
Vibration/warning
A display fault indicating a warning from the vibration sensor (DUV10A diagnostic unit). Operation is still possible, but attention should be paid to the source of vibration before it escalates to a fault (F101).
Vibration fault
A rapid stop occurs when the vibration sensor signals a critical fault, indicating severe vibrations in the system. This requires immediate action to prevent damage.
Oil aging/warning
A display fault indicating a warning from the oil aging sensor, suggesting that an oil change should be scheduled. This allows for proactive maintenance before oil quality degrades further.
Oil aging/fault
A display fault indicating a fault signal from the oil aging sensor, necessitating an immediate oil change for the gear unit. This signifies that the oil quality has degraded to a critical level.
Oil aging/overtemperature
A display fault indicating that the oil aging sensor has detected overtemperature conditions in the gear unit oil. This can lead to accelerated oil degradation and potential damage to the gear unit.
Oil aging/ready signal
A display fault indicating that the oil aging sensor is not ready for operation, possibly due to issues with its voltage supply or a defective sensor. This means the sensor cannot provide accurate monitoring data.
Brake wear
A display fault indicating that the brake lining is worn down. This reduces braking effectiveness and requires maintenance to ensure safety and functionality.
Overtemperature
A stop with inhibit indicates thermal overload of the inverter. If a braking resistor is integrated in the heat sink, this could exacerbate the issue by generating additional heat.
Ex-e protection
The maximum allowed duration for operating the motor below 5 Hz in Ex-e protection mode has been exceeded. This fault initiates an emergency stop to comply with safety regulations for explosion-protected motors, which have thermal limitations at low speeds.
System bus (SBus) error
Communication between the FSE24B fieldbus interface and the MOVITRAC® B inverter has been interrupted. This fault is signaled to the EtherCAT or fieldbus master, indicating a break in the SBus connection. MOVITRAC® B itself would register an F47 internal error for this condition.
Analog input wire break
A wire break has been detected at the AI1 analog input terminal. This fault indicates an open circuit in the signal path to analog input 1, preventing correct signal measurement. The response to this fault can be configured programmatically.
Error application module
A general error originating from an application module, indicating a problem in the drive's specialized control functions. This fault has several specific sub-errors that further define the nature of the issue, such as encoder problems or limit switch activations.
System error
An immediate switch-off with inhibit, indicating a fault in the inverter electronics, potentially due to EMC issues. This is a general system error for the range F17 to F24, pointing to an internal electronic malfunction.
EEPROM
A stop with inhibit, indicating an error during access to the EEPROM. This can often be resolved by restoring factory settings and parameters, suggesting a data corruption or access issue.
External terminal
This programmable fault is triggered by an external fault signal read via a configurable input terminal. The response can be configured (e.g., Immediate stop, Rapid stop) based on the specific application requirements.
TF/TH trip
Motor overtemperature detected by the TF sensor. This fault causes a stop without inhibiting the drive, meaning the "Ready" signal is maintained. This indicates the motor has exceeded its thermal limits and requires cooling.
IPOS index overflow
An internal stack overflow has occurred within the inverter's IPOS user program. This fault is typically caused by violations of programming principles in the user-defined control logic and results in an immediate switch-off with inhibit.
Ramp timeout
The drive has failed to reach the start/stop speed within the specified ramp time. This fault can occur during a controlled stop if the stop ramp time t13 is exceeded, or if the set stop ramp (P136 / P146) is too short. It causes an immediate switch-off with inhibit.
Ex-e protection operating mode
An invalid operating mode was selected for Ex-e protection, or the Ex-e motor was not correctly integrated into the system. This fault triggers an immediate switch-off with inhibit, indicating a potential safety or operational violation for explosion-protected motors.
Option missing
An option card is either incorrect, missing, or has incompatible settings for its setpoint source, control signal, or operating mode. This fault indicates a configuration mismatch or hardware absence, leading to an immediate switch-off with inhibit.
System watchdog
An error has occurred in the fundamental system software sequence, indicating a potential internal processing issue. This fault causes an immediate switch-off with inhibit, often related to environmental electrical interference.
System software
A general system error has been detected within the inverter's core software. This fault signifies a critical internal issue and results in an immediate switch-off with inhibit. It often points to electrical noise or hardware instability.
RS485 timeout
Communication over the RS485 interface between the inverter and a PC, or to the FSE24B module, has been interrupted. This fault does not lock the drive and clears automatically once communication is reestablished, indicating a transient or connection issue.
Unit utilization
The inverter's internal utilization (I × t value) has exceeded its safe operating limits, indicating a prolonged or excessive overload condition. This fault causes an immediate switch-off with inhibit to protect the inverter from damage.
System bus 1 timeout
A stop without inhibit occurs due to a communication fault via system bus 1. This can be related to the bus connection, parameter P808, the voltage supply of the FSE24B module, or EtherCAT communication issues with the connected FSE24B.
IPOS control word
A stop with inhibit occurs due to an internal system error, indicating a problem with the IPOS control word. This suggests an internal firmware or configuration issue within the IPOS logic.
RAM test
An immediate switch-off occurs due to an internal unit error, specifically a defective RAM. This is a hardware fault within the inverter's memory system.
Start condition
An immediate switch-off with inhibit occurs only in 'VFC hoist' operating mode. The motor could not be supplied with the correct amount of current during the pre-magnetizing time, possibly due to mismatched motor/inverter power or insufficient motor cable cross-section.
Open output
An immediate switch-off with inhibit occurs only in 'VFC hoist' operating mode. This indicates that two or all output phases are interrupted, or the rated motor power is too small relative to the inverter's rated power, preventing proper motor operation.
Motor protection
A stop with inhibit indicating that motor utilization is too high, often detected by IN-UL monitoring (P345/P346). This protects the motor from sustained overload conditions.
EEPROM checksum
An immediate switch-off with inhibit indicates a defective EEPROM. This is a critical hardware fault in the non-volatile memory that stores configuration data.
Copy error
An immediate switch-off with inhibit occurs if the parameter module is removed during a copying process or if the unit is switched off/on while copying. This indicates an interruption during data transfer to or from the parameter module.
CRC error flash
An immediate switch-off indicates an internal unit error, specifically a defective flash memory (CRC error). This is a severe hardware fault in the unit's permanent storage.