SEW Eurodrive [PDF] MOVIMOT® MM..D with AC Motor DT/DV / Operating Instruc
23 fault codes documented
Overcurrent in Output Stage
This fault indicates an excessive current flow detected in the inverter's output stage, leading to a motor stop. This typically signals a short circuit condition on the inverter's output or within the motor winding, which can damage the inverter's power components.
Mains Phase Failure
This fault indicates a missing phase in the supply system, which can only be detected when the drive is under load. Operating the drive with a missing phase can lead to motor damage due to unbalanced currents and overheating.
DC Link Voltage Too High
This fault occurs when the DC link voltage exceeds its permissible upper limit, often due to regeneration from the motor during deceleration. High DC link voltage can damage the inverter's internal components.
Speed Monitoring Fault
This fault indicates that the internal speed monitoring function has detected a condition where the actual speed deviates significantly from the commanded speed, typically due to excessive load. This fault occurs only when DIP switch S2/4 is set to 'ON', and can cause the motor to stall or operate outside its designed parameters.
Thermal Overload of Output Stage / Internal Unit Error
This fault indicates that the temperature of the inverter's output stage has exceeded its permissible limit, or a general internal unit error has occurred. Persistent thermal overload can lead to premature failure of the inverter's power electronics.
CPU Fault
This fault indicates an internal error within the Central Processing Unit (CPU) of the MOVIMOT inverter. Such errors can lead to unpredictable drive behavior or complete shutdown, and often require expert intervention if persistent.
CPU Fault
This fault indicates an internal error within the Central Processing Unit (CPU) of the MOVIMOT inverter. Such errors can lead to unpredictable drive behavior or complete shutdown, and often require expert intervention if persistent.
CPU Fault
This fault indicates an internal error within the Central Processing Unit (CPU) of the MOVIMOT inverter. Such errors can lead to unpredictable drive behavior or complete shutdown, and often require expert intervention if persistent.
CPU Fault
This fault indicates an internal error within the Central Processing Unit (CPU) of the MOVIMOT inverter. Such errors can lead to unpredictable drive behavior or complete shutdown, and often require expert intervention if persistent.
CPU Fault
This fault indicates an internal error within the Central Processing Unit (CPU) of the MOVIMOT inverter. Such errors can lead to unpredictable drive behavior or complete shutdown, and often require expert intervention if persistent.
CPU Fault
This fault indicates an internal error within the Central Processing Unit (CPU) of the MOVIMOT inverter. Such errors can lead to unpredictable drive behavior or complete shutdown, and often require expert intervention if persistent.
CPU Fault
This fault indicates an internal error within the Central Processing Unit (CPU) of the MOVIMOT inverter. Such errors can lead to unpredictable drive behavior or complete shutdown, and often require expert intervention if persistent.
CPU Fault
This fault indicates an internal error within the Central Processing Unit (CPU) of the MOVIMOT inverter. Such errors can lead to unpredictable drive behavior or complete shutdown, and often require expert intervention if persistent.
EEPROM Error
This fault indicates an issue encountered during an access attempt to the internal EEPROM (Electrically Erasable Programmable Read-Only Memory) of the MOVIMOT unit. An EEPROM error can result in lost or corrupted configuration data, preventing proper drive operation.
CPU Fault
This fault indicates an internal error within the Central Processing Unit (CPU) of the MOVIMOT inverter. Such errors can lead to unpredictable drive behavior or complete shutdown, and often require expert intervention if persistent.
Cyclical Communication Timeout
This fault indicates a timeout during cyclical communication via the RS-485 interface, causing the drive to decelerate and stop along the set ramp. A communication timeout means the MOVIMOT unit is not receiving expected data from the RS-485 master within the configured interval (e.g., 1 second).
Current Limit Exceeded
This error is generated if the drive operates at its adjustable current limit for longer than 500 ms, occurring when additional function 2 (adjustable current limitation) is active and the operating frequency is above 15 Hz. Prolonged operation at current limit can indicate an overloaded condition.
Start Condition Error
This fault occurs when the motor cannot be supplied with the correct amount of current during the pre-magnetizing time, particularly in hoist applications. This indicates an impedance mismatch or inadequate current capacity, preventing proper motor startup.
Output Phases Interrupted
This fault indicates that two or all output phases between the MOVIMOT inverter and the motor are interrupted or open. This prevents current delivery to the motor windings, leading to motor non-operation and potential inverter damage if operated under such conditions.
Thermal Overload of Motor
This fault indicates that the motor has experienced a thermal overload, meaning its operating temperature has exceeded safe limits. This can occur due to excessive load, inadequate cooling, or incorrect motor protection settings, posing a risk of motor winding damage.
Thermal Overload of Brake Coil / Defective Brake
This fault indicates a thermal overload of the brake coil or a defect within the brake itself, including incorrect connection. Overtemperature can lead to reduced braking force, premature wear, or complete failure of the brake mechanism.
Incorrect Motor/Inverter Assignment
This fault indicates that the parameters configured for the motor do not correctly match the assigned inverter power, or vice versa. This mismatch can lead to improper motor control, reduced performance, or damage to both motor and inverter.
EEPROM Checksum Error
This fault signifies an error in the checksum calculation for data stored in the EEPROM, indicating that the EEPROM itself is likely defective. This can lead to corrupted configuration data and prevent the unit from functioning correctly.