Omron MX2 Inverter

This warning indicates that the parameter set for the frequency upper limit (A061) is configured to a value higher than the inverter's maximum allowed frequency (A004). This inconsistent setting may lead to unexpected operational limits or prevent the drive from reaching its full potential.

This warning indicates that the parameter set for the frequency lower limit (A062) is configured to a value higher than the inverter's maximum allowed frequency (A004). This inconsistent setting creates a logical conflict in the drive's operational range.

This warning occurs if the frequency set for Multi-step speed reference 0 (A020) or the current output frequency (F001) is greater than the inverter's maximum allowed frequency (A004). This can cause the inverter to operate outside its designed limits or result in an unintended operational range.

This warning occurs if the frequency set for Multi-step speed reference 0 (A020) or the output frequency setting (F001) is higher than the configured frequency upper limit (A061). This creates a logical conflict in the drive's speed constraints, as a programmed speed is above the allowed maximum.

This warning indicates that the frequency lower limit (A062) is set higher than the Multi-step speed reference 0 (A020) or the output frequency setting (F001). This creates a logical inconsistency where the minimum allowed frequency is greater than a programmed speed reference, potentially limiting operation.

This warning occurs when the inverter's starting frequency (b082) is set higher than the defined frequency upper limit (A061). This configuration is contradictory and may prevent the inverter from starting or operating as intended within its defined frequency limits.

This warning indicates that the inverter's starting frequency (b082) is set higher than the defined frequency lower limit (A062). While less critical than exceeding the upper limit, this can lead to unexpected motor behavior if the drive attempts to start below its commanded minimum frequency.

This warning indicates that the inverter's starting frequency (b082) is set higher than the Multi-step speed reference 0 (A020) or the output frequency setting (F001). This creates a logical conflict for initial motor speed settings, potentially causing the drive to jump to a higher speed than intended immediately after starting.

This warning occurs when the inverter's starting frequency (b082) is set higher than one or more of the defined multi-step speed references (A021-A035). This inconsistent parameter configuration may lead to unexpected speed behavior when switching between multi-step speeds, as the base speed is higher than a target speed.

This warning indicates that the inverter's starting frequency (b082) is set higher than the jogging frequency (A038). This inconsistency can cause an abrupt speed change when transitioning from a jog command or if jogging is initiated at startup, potentially leading to jerky motion or mechanical stress.

This warning indicates that Multi-step speed reference 0 (A020) or the output frequency (F001) is set to a value that falls within one of the defined 'jump frequencies' (A063/A065/A067) with its associated width (A064/A066/A068). Operating at such a speed can lead to mechanical resonance in the machine, causing vibration or instability.

This warning indicates that one or more of the multi-step speed references (A021-A035) are set to a value that conflicts with a defined jump frequency range (A063/A065/A067 ± A064/A066/A068). Operating at such a speed can cause mechanical resonance in the machine, potentially leading to damage or instability.

This warning occurs when the seventh point of the free setting V/f curve (b112), which also acts as the maximum frequency in this mode, is set higher than the frequency upper limit (A061). This creates an inconsistent operational boundary for V/f control, limiting the actual achievable frequency.

This warning indicates that the seventh point of the free setting V/f curve (b112) is set higher than the frequency lower limit (A062). This creates an inconsistent lower boundary for the V/f characteristic, potentially restricting the minimum V/f output.

This warning occurs when the seventh point of the free setting V/f curve (b112) is set higher than Multi-step speed reference 0 (A020) or the output frequency setting (F001). This creates a conflict where the V/f curve's maximum frequency is inconsistent with a programmed speed reference, potentially causing unintended speed limits.

For the second motor settings, this warning indicates that the frequency upper limit (A261) is set higher than the 2nd maximum frequency (A204). This inconsistent configuration for the alternative motor profile may prevent the second motor from operating at its intended maximum frequency.

For the second motor settings, this warning indicates that the frequency lower limit (A262) is set higher than the 2nd maximum frequency (A204). This creates an inconsistent lower boundary for the alternative motor profile, potentially restricting the minimum operating speed of the second motor.

For the second motor settings, this warning occurs if the Multi-step speed reference 0 (A220) or the output frequency (F001) is set higher than the 2nd maximum frequency (A204). This indicates an operational limit conflict for the alternative motor profile, potentially limiting the achievable speed of the second motor.

For the second motor settings, this warning occurs if the Multi-step speed reference 0 (A220) or output frequency setting (F001) is set higher than the 2nd frequency upper limit (A261). This creates a conflict in the speed constraints for the alternative motor profile, as a programmed speed is above the allowed maximum.

For the second motor settings, this warning indicates that the 2nd frequency lower limit (A262) is set higher than the 2nd Multi-step speed reference 0 (A220) or the output frequency setting (F001). This creates a logical inconsistency for the alternative motor profile's minimum speed, potentially restricting the operation of the second motor.

For the second motor settings, this warning occurs when the inverter's starting frequency (b082) is set higher than the 2nd frequency upper limit (A261). This inconsistent configuration may prevent the second motor from starting or operating as intended within its defined frequency limits.

For the second motor settings, this warning indicates that the inverter's starting frequency (b082) is set higher than the 2nd frequency lower limit (A262). This could lead to unexpected motor behavior if the second motor attempts to start below its commanded minimum frequency, potentially causing jerky motion.

For the second motor settings, this warning indicates that the inverter's starting frequency (b082) is set higher than the 2nd Multi-step speed reference 0 (A220) or the output frequency setting (F001). This creates a logical conflict for initial motor speed settings, potentially causing the drive to jump to a higher speed than intended immediately after starting the second motor.

For the second motor settings, this warning indicates that the 2nd Multi-step speed reference 0 (A220) or output frequency (F001) is set to a value that falls within one of the defined 'jump frequencies' (A063/A065/A067) with its associated width (A064/A066/A068). Operating at such a speed can lead to mechanical resonance or unstable operation for the second motor at that frequency.

For the second motor settings, this warning occurs when the seventh point of the free setting V/f curve (b112), which also acts as the maximum frequency in this mode, is set higher than the 2nd frequency upper limit (A261). This creates an inconsistent operational boundary for V/f control for the second motor, limiting the actual achievable frequency.

For the second motor settings, this warning indicates that the seventh point of the free setting V/f curve (b112) is set higher than the 2nd frequency lower limit (A262). This creates an inconsistent lower boundary for the V/f characteristic for the second motor, potentially restricting the minimum V/f output.

For the second motor settings, this warning occurs when the seventh point of the free setting V/f curve (b112) is set higher than the 2nd Multi-step speed reference 0 (A220) or the output frequency setting (F001). This creates a conflict where the V/f curve's maximum frequency is inconsistent with a programmed speed reference for the second motor, potentially causing unintended speed limits.

This fault indicates that the inverter detected an excessive current flow while the motor was operating at a constant speed. This can be caused by a short circuit in the motor output, a locked motor shaft, or a sudden heavy load on the motor, leading to inverter shutdown to prevent damage.

This fault occurs when the inverter detects an overcurrent condition during the motor's deceleration phase. This typically happens when the motor is regenerating energy back into the drive too rapidly or encounters a sudden mechanical jam during slowing down, leading to an inverter trip.

This fault signifies an excessive current draw by the motor during its acceleration phase. Common causes include a short circuit in the motor wiring, the motor being mechanically locked, an overly aggressive acceleration time setting for the load, or insufficient motor parameters in the drive.

This fault indicates an overcurrent condition that occurred under operating circumstances other than constant speed, acceleration, or deceleration. This general overcurrent trip mechanism acts as a catch-all for various abnormal current events, protecting the inverter from sustained high current levels.

This fault occurs when the inverter's electronic thermal protection detects that the motor is operating under an excessive load, causing it to overheat. The inverter calculates the motor's thermal state based on current and time, tripping to prevent motor damage from prolonged overload.

This fault indicates that the regenerative braking resistor has been overloaded, typically due to excessive or continuous energy dissipation from the motor. The inverter monitors the usage rate of the braking resistor (b090) and trips to prevent damage to the resistor and associated components.

This fault occurs when the DC bus voltage inside the inverter exceeds a predefined safe threshold. This usually happens during deceleration due to regenerative energy from the motor returning to the drive faster than it can be dissipated, or from an unstable input power supply.

This fault indicates a problem with the inverter's built-in EEPROM memory, often caused by electrical noise, power fluctuations, or excessive temperature. When this error occurs, the inverter trips and turns off its output to the motor to prevent further data corruption or erratic behavior.

This fault occurs when the DC bus voltage inside the inverter drops below a critical threshold, indicating a control circuit fault or an unstable input power supply. This condition can also generate excessive motor heat or cause low torque, leading to an inverter trip to protect the system.

This fault indicates a malfunction within the inverter's internal current detection system, which is crucial for accurate motor control and protection. When this error occurs, the inverter immediately shuts off its output to prevent uncontrolled operation or damage.

This critical fault indicates a malfunction within the inverter's central processing unit (CPU). A CPU error implies a severe internal hardware or software issue, rendering the inverter unable to perform its control functions and resulting in an immediate trip and shutdown of the motor output.

This fault is triggered by an external safety or protection device connected to an intelligent input terminal configured as 'EXT' (option code 12). It signifies that an external condition requires the inverter to stop its output immediately, acting as a general-purpose interrupt to the drive's operation.

This fault occurs when the Unattended Start Protection (USP) function is enabled and a Run command is present simultaneously with the application of power. It prevents the motor from unexpectedly starting upon power-up, requiring deliberate action to clear the fault and resume operation, enhancing safety.

This fault indicates a ground fault detection between the inverter's output terminals and earth ground, typically during power-up tests. The inverter's protection system detects current leakage paths, tripping to prevent electric shock and damage to the motor or inverter.

This fault is triggered when the inverter detects an excessive input voltage from the power supply, specifically during its idle (Stop) mode for a prolonged period (100 seconds). The inverter enters a fault state to protect its internal components from damage due to sustained high voltage.

This fault indicates that the inverter's internal temperature has exceeded its safe operating threshold. The thermal sensor within the inverter module detects overheating of the power devices (IGBTs), causing the inverter to trip and shut down its output to prevent damage.

This fault occurs when there is a communication failure between the two internal CPUs within the inverter. Such a failure prevents coordinated operation and leads to an inverter trip, indicating a critical internal control issue.

This fault indicates a problem with the inverter's main power circuit, where the power supply establishment is not properly recognized. This can be due to electrical noise, damage to main circuit elements, or issues with the DC bus voltage sensing.

This fault is triggered by an instantaneous overcurrent event in the IGBT (Insulated Gate Bipolar Transistor) output stage of the inverter. It signifies a rapid and severe current spike that could damage the IGBTs, causing the inverter to immediately shut off the output to protect these critical power devices, and preventing retry operations.

This fault is activated when an external thermistor, connected to the inverter's input terminals [5] and [L], detects that the motor temperature has exceeded a safe limit (typically above 3 kΩ ±10%). The inverter trips and turns off its output to prevent motor overheating and damage.

This fault occurs during brake control operation if the inverter fails to receive the braking confirmation signal within the specified time (b124) after a brake release, or if the output current doesn't reach the brake release current (b126) during the brake wait time (b121). It indicates a problem with the brake's operation or its feedback to the inverter.

This fault is triggered when the Safe Stop function is activated, indicating that a safety-related input (GS1/GS2) has been interrupted or commanded, initiating an immediate and safe shutdown of the motor output. The inverter explicitly signals this state to ensure safety compliance and prevent unintended motion.

This fault indicates an overload condition detected when the motor is operating at very low speeds. The inverter's protection mechanism trips to prevent motor damage that can occur when operating heavy loads at low frequencies, where cooling efficiency might be reduced and current demand is high.

This fault occurs when the communication between the inverter and its operator keypad (either integrated or external) fails. This interruption in communication prevents control and monitoring functions, causing the inverter to trip and display this error code.

This fault occurs when a Modbus communication timeout happens, typically when the inverter does not receive data within the period specified by the communication watchdog timer (C077). This often indicates a break in network communication or incorrect settings, causing the inverter to trip if 'trip' is selected as the error behavior (C076=00).

This fault indicates an issue with the Drive Programming logic stored in the inverter's memory. It can be triggered if the program data is corrupted or if the PRG (Drive Programming start) terminal is activated without a valid program having been successfully downloaded or stored.

This fault occurs when the Drive Programming logic contains subroutines, if-statements, or for-next loops that are nested more than eight layers deep. This exceeds the inverter's processing capability for program complexity, causing a trip to prevent runtime errors and ensure system stability.

This fault indicates that the inverter encountered a command within the Drive Programming logic that it could not execute. This could be due to a syntax error, an unsupported instruction, or a logical conflict within the program, leading to an inverter trip.

These faults are generic user-defined trip codes triggered by specific conditions programmed within the Drive Programming application (E50 corresponds to user trip 0, E51 to user trip 1, etc.). They allow technicians to implement custom safety or operational interlocks, causing the inverter to trip and display a user-defined error code when those conditions are met.

These faults indicate errors related to an installed option board (E60 corresponds to option error 0, E61 to option error 1, etc.). The specific meaning of the error depends on the type of option board connected to the inverter, and they are reserved for diagnosing issues with the functionality or communication of these optional modules.

This fault indicates that the encoder connected for feedback has been disconnected, has a wiring error, or is of an unsupported type (e.g., not line driver output). Without valid encoder feedback, the inverter cannot perform accurate speed or position control, leading to a shutdown to prevent erratic motor behavior.

This fault is triggered when the motor speed deviates excessively from the commanded speed, exceeding a set threshold (P027), often in applications with encoder feedback. This indicates a loss of control, where the motor is either running too fast or too slow relative to the commanded reference, causing an inverter trip to prevent instability.

This fault occurs in positioning applications when the current motor position exceeds the limits defined by the position range specification parameters (P072-P073). It indicates that the motor has moved beyond its allowed operational boundaries, causing the inverter to shut off its output to prevent mechanical damage.