Lenze i550 protec Drive
52 fault codes documented
CiA: Continuous over current (internal)
This fault indicates a continuous overcurrent condition within the inverter or on the motor side, or an overcurrent at the brake chopper. It can also occur if the DC bus relay has not been closed due to a malfunction. This fault immediately disables the inverter, causing the motor to coast.
Short circuit or earth leakage at the motor end
This fault occurs due to a short circuit or earth fault of the motor cable, or if the capacitive charging current of the motor cable is excessively high. The inverter immediately disables the drive, allowing the motor to coast.
Short circuit at the motor end
This fault indicates a short circuit specifically in the motor cable. When detected, the inverter immediately disables the drive, leading to the motor coasting without torque.
CiA: i²xt overload (thermal state)
This fault signifies a thermal overload of the motor, typically caused by an impermissible continuous current or by frequent or excessively long acceleration processes. The drive is disabled, and the motor will coast. This fault is configurable and requires a blocking time of 5 seconds before reset.
Fault - Device utilization (ixt) too high
This fault indicates that the inverter's device utilization (I²t) is excessively high, typically caused by frequent and/or prolonged acceleration processes. This condition is configurable and causes the inverter to disable immediately, requiring a 3-second blocking time before a reset.
Warning - Device utilization (ixt) too high
This warning indicates that the inverter's device utilization (I²t) is too high due to frequent and/or prolonged acceleration processes. This suggests the drive may be oversized or the application demands are high.
Clamp responded too often
This fault occurs when the maximum current of the axis (display in 0x2DDF:002) has been reached too frequently in succession. This indicates the system is hitting current limits repeatedly.
SL-PSM stall detection active
This trouble code signifies an overload of the motor under sensorless control for synchronous motors (SL-PSM). When active, the inverter immediately disables, and the motor will coast.
Maximum current reached
This information message indicates that the actual current (0x6078, P103.00) is equal to or higher than the configured maximum current (0x6073, P324.00). It suggests the motor is operating at its current limit.
Mains phase fault
This fault is triggered by a failure in one or more phases of the mains power supply. The inverter will immediately disable.
Network: user fault 2
This fault is triggered when the "Activate fault 2" function is activated via the NetWordIN1 data word 0x4008:001 (P590.01). The underlying cause of "user fault 2" needs to be identified and rectified before the error can be reset.
NetWordIN1 configuration incorrect
This error occurs when two bits of the NetWordIN1 data word 0x4008:001 (P590.01) are assigned to the same function. This indicates a conflict in the network control word configuration.
Device ID has been changed
This fault occurs when the device ID of the inverter has been manually changed. This requires specific steps to save the new ID and restart the inverter for the changes to take effect properly.
CU: load error ID tag
This fault indicates that the calibration data of the control unit (CU) is either incompatible or faulty. This prevents proper operation and immediately disables the inverter, causing the motor to coast. The error can only be reset by mains switching.
PU: load error ID tag
This fault indicates that the calibration data of the power unit (PU) is either incompatible or faulty. This leads to immediate inverter disablement and motor coasting, and requires a mains power cycle to reset.
Power unit unknown
This fault occurs when the installed power unit is not supported by the inverter's current software version. This immediately disables the inverter, leading to motor coasting, and the error can only be reset by mains switching.
EPM data: PU size incompatible
This fault indicates that the parameter settings stored in the memory module (EPM) are incompatible with the currently installed inverter. The incompatible data is loaded into RAM but will not function correctly.
EPM data: new PU size detected
This fault indicates that the parameter settings in the memory module originate from an inverter with different hardware, for example, a different power rating. The data is loaded into RAM without modification, and while compatible, requires user acceptance.
Invalid parameter changeover configuration
This warning indicates that one or more parameters configured for the "Parameter change-over" function are no longer valid or usable. Consequently, the parameter change-over function is deactivated.
EPM data: unknown parameter found
The memory module (EPM) contains parameter settings that are not recognized by the current inverter software. This can happen after firmware updates or compatibility changes.
Parameter changes lost
This fault occurs when a voltage failure happens before recently changed parameter settings could be saved. All unsaved parameter changes are lost.
Network: timeout explicit message
This warning indicates that no "explicit message" was received within the parameterized timeout period set by the scanner, or the connection to the scanner has been interrupted. This points to an issue with explicit network communication or its physical connection.
User-defined fault 1
This fault indicates that the 'Activate fault 1' function has been triggered within the flexible I/O configuration. The activation specifically occurred via the input trigger selected in parameter 0x2631:043 (P400.43). This fault type typically results in the motor being brought to a standstill.
User-defined fault 2
This fault indicates that the 'Activate fault 2' function has been triggered within the flexible I/O configuration. The activation specifically occurred via the input trigger selected in parameter 0x2631:044 (P400.44). This fault type typically results in the motor being brought to a standstill.
Warning invert rotation
This warning occurs when a negative setpoint is selected with an active limitation of rotation (parameter 0x283A (P304.00)), or if the 'Reverse rotational direction' function (parameter 0x2631:013 (P400.13)) is requested while rotation limitation (parameter 0x283A (P304.00)) is active. The motor will be brought to a standstill because reversal of the rotating direction is not permissible under these conditions.
Maximum allowed troubles exceeded
The number of permitted restart attempts after a fault, configured in parameter 0x2839:003 (P760.03), has been exceeded. This indicates that faults have occurred too frequently and could not be reset automatically. The motor will remain at a standstill, and no automatic restart will be executed.
User-defined fault (LECOM)
This fault indicates that a user-defined 'Activate fault' function has been triggered specifically through the LECOM control word. The activation signal was detected on bit 10 of LECOM control word 0x400B:002 (P592.02). This fault type typically results in the motor being brought to a standstill.
Network: user fault 1
This fault indicates that the 'Activate fault 1' function has been triggered via the NetWordIN1 data word. The activation signal was detected within the NetWordIN1 data word 0x4008:001 (P590.01). This fault type typically results in the motor being brought to a standstill.
Assertion level monitoring (Low/High)
This fault indicates that the last setting of the connection level differs from the saved setting. This inconsistency can lead to improper device operation.
Fault - Analog input 1
The monitoring function for analog input 1 has been triggered, as configured via parameters 0x2636:008 (P430.08) and 0x2636:009 (P430.09). This indicates an issue with the signal connected to analog input 1, potentially an out-of-range or missing signal.
Analog input 2 fault
The monitoring function for analog input 2 has been triggered, as configured via parameters 0x2637:008 (P431.08) and 0x2637:009 (P431.09). This indicates an issue with the signal connected to analog input 2, potentially an out-of-range or missing signal.
HTL input fault
The monitoring of the input signal configured for the HTL input has been triggered. This indicates a problem with the High-Threshold Logic input signal, potentially an unexpected pulse count or signal level.
Analog output 1 fault
An open circuit or short circuit condition has been detected at analog output 1. This could prevent proper signal transmission to connected devices.
Analog output 2 fault
An open circuit or short circuit condition has been detected at analog output 2. This could prevent proper signal transmission to connected devices.
Fault - Pole position identification
This fault indicates that too many deviations occurred during the pole position identification process, or the rated motor current is too high or too low compared to the inverter. This can result in incorrect motor control and potential damage. The configurable setting is 0x2C60.
Data not compl. saved before powerdown
Saving of the current parameter settings was unexpectedly interrupted by a power disconnection, resulting in an incomplete save operation. The drive may have loaded an older parameter set from backup.
Memory module: invalid OEM data
The OEM memory area of the memory module contains invalid parameter settings or is empty. This indicates a potential issue with the OEM-specific configuration data.
Memory module: wrong type
The connected memory module is not compatible with or supported by the inverter hardware. This prevents the inverter from operating with the module.
EPM firmware version incompatible
The parameter settings stored on the memory module (EPM) are not compatible with the current firmware version of the inverter. This incompatibility prevents the drive from using the stored settings directly.
EPM data: firmware type incompatible
The parameter settings saved in the memory module are incompatible with the firmware type of the inverter, for example, using an application-specific IO module's memory in a standard IO inverter. This prevents proper operation.
EPM data: new firmware type detected
The parameter settings stored in the memory module do not precisely match the current inverter hardware configuration, even though they were loaded into RAM as compatible. User acceptance of these settings is required.
Motor overspeed
The motor speed has exceeded the error threshold for overspeed, which is defined in parameter 0x2D44:001 (P350.01). This can indicate a loss of control, potential mechanical damage, or an incorrect speed limit setting. The error can only be reset after a 1-second blocking time.
Motor phase missing
A failure of several motor phases has been detected. This indicates an open circuit in the motor power cabling or motor windings, leading to imbalanced operation or a complete stop. The error can only be reset after a 2-second blocking time.
Motor phase failure phase U
A failure specifically of motor phase U has been detected. This indicates an open circuit in the wiring for phase U between the inverter and the motor, or an issue within the motor's U-phase winding. The error can only be reset after a 2-second blocking time.
Motor phase failure phase V
A failure specifically of motor phase V has been detected. This indicates an open circuit in the wiring for phase V between the inverter and the motor, or an issue within the motor's V-phase winding. The error can only be reset after a 2-second blocking time.
Motor phase failure phase W
A failure specifically of motor phase W has been detected. This indicates an open circuit in the wiring for phase W between the inverter and the motor, or an issue within the motor's W-phase winding. The error can only be reset after a 2-second blocking time.
Motor parameter identification fault
An error occurred during the automatic identification process of the connected motor. This indicates a mismatch between the drive's expectation and the motor's actual electrical characteristics or a problem with motor wiring. This could lead to incorrect motor operation or damage.
FMF Error
This fault indicates a general configuration or runtime error within the FMF (Function Module Framework) system. Further diagnostics are required to pinpoint the exact cause of the issue within the module's operation.
Cascading overload
This warning occurs in a pump or fan cascade function when the maximum frequency, set in 0x2916 (P211.00), has been reached and no additional free pump is available to share the load. This indicates the system is running at its capacity limits or beyond.
Warning - Brake resistor overload
The calculated thermal load of the brake resistor has reached the warning threshold defined by parameter 0x2550:008 (P707.08), indicating excessive regenerative energy. The warning resets when the thermal load drops 20% below this threshold.
Automatic start disabled
This fault occurs at mains connection if a run command is already present, but the automatic start at power-up feature is configured as "Off [0]" in parameter 0x2838:002 (P203.02). The drive will not start automatically under these conditions.
Load loss detected
During motor operation, if the motor load current falls below the threshold defined in parameter 0x4006:001 (P710.01) for the duration specified in parameter 0x4006:002 (P710.02), load loss protection is triggered. This indicates an unexpected drop in mechanical load.