Lenze i550 protec Drive

52 fault codes documented

0x2250

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.

0x2320

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.

0x2340

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.

0x2350

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.

0x2382

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.

0x2383

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.

0x2387

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.

0x2388

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.

0x238A

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.

0x3120

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.

0x62A2

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.

0x62B1

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.

0x62B2

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.

0x63A1

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.

0x63A2

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.

0x63A3

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.

0x7693

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.

0x7694

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.

0x7695

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.

0x7696

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.

0x7697

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.

0x8112

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.

25217

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.

25218

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.

25232

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.

25233

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.

25248

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.

25249

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.

28800

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.

28801

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.

28802

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.

28803

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.

28833

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.

28834

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.

28961

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.

30340

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.

30345

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.

30346

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.

30352

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.

30353

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.

30354

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.

65286

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.

65289

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.

65290

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.

65291

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.

65292

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.

65305

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.

65311

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.

65317

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.

65334

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.

65335

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.

65336

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.