Kone Frequency Inverter

This error indicates that the door lock safety circuit is active during lift operation, suggesting a loss of the lock signal even though the safety circuit itself is present. This condition typically triggers an emergency stop of the lift, prioritizing passenger safety.

This error occurs when both the Up and Down Limit switches are activated simultaneously while the car is not at the top floor during normal service, or when the Up Limit switch activates incorrectly during an upward travel. This indicates a conflict in position detection or a faulty limit switch component.

This error occurs when both the Up and Down Limit switches are activated simultaneously while the car is not at the lowest floor during normal service, or when the Down Limit switch activates incorrectly during a downward travel. This indicates a conflict in position detection or a faulty limit switch component.

This error is recorded if the door fails to open fully within 15 seconds, despite the door-opening signal being continuously present. It triggers after three continuous occurrences. It can also be registered if the landing door lock is bridged when the lift is in the door zone with door-lock signals and a door-open limit signal (for 1.5 s) but without a car door lock signal (valid only with high-voltage input of separate door).

This error is recorded if the door fails to close properly within 15 seconds, despite the door-closing signal being continuously present. It triggers after eight continuous occurrences. It also occurs if the door-close limit signal disagrees with the door-lock position for 4 continuous seconds (excluding cases of missing door-lock signals), indicating an overtime condition in door closing.

This error indicates interference or a complete break in the CANBUS communication link. The error is recorded if communication with the car control PCB SM-02 fails incessantly for 4 seconds, pointing to a severe communication issue within the elevator's network.

This error indicates a specific issue with the inverter, manifested as an error signal appearing at input Port X11 of the master control PCB. This error is recorded if the inverter fault signal persists for 10 seconds while the master control PCB is determined to be operating correctly.

This error signifies a critical failure within the power module of the inverter/drive system, which is responsible for power conversion to the motor. This could be caused by component degradation, electrical overstress, or thermal issues, leading to an inability of the drive to supply power.

This error indicates that one or more output phases to the motor are either missing entirely or exhibit a significant imbalance, suggesting an issue with the drive's output stage or the motor connection wiring.

This critical error indicates that the current drawn by the motor has exceeded a predefined maximum limit, protecting both the drive and motor from damage. It is often triggered by short circuits, sudden heavy loads, or excessively rapid acceleration.

This error indicates a problem with the motor encoder, which is responsible for providing accurate speed and position feedback to the drive. A faulty encoder can lead to incorrect speed control, system instability, or the drive's inability to operate effectively.

This fault indicates various issues with the positioning or activation of the deceleration switches for downward travel. It covers scenarios such as switches being positioned too low or too high relative to self-learning positions, failure to activate, or incorrect configuration of one-step versus two-step switches as defined by parameter F182.

This error occurs when the speed feedback signal from the encoder indicates a reverse direction of travel, but the drive is commanding forward travel (or vice versa). This conflict strongly suggests an encoder wiring error, incorrect encoder mounting, or a faulty feedback device.

This error indicates that the drive is receiving speed feedback signals from the motor, but there is no active command or 'directory' (run or direction command) for the motor to operate. This condition could signify unintended motor motion or a faulty control input causing spurious feedback.

This error indicates that the motor phases are connected in a way that causes the motor to rotate in the opposite direction than commanded, or the drive detects an incorrect phase sequence. This is typically a wiring issue between the drive and the motor.

This error indicates that the motor speed has exceeded a safe limit while traveling in the intended 'riding' or forward direction. This is a critical safety fault, often triggered by a loss of speed control, an external force causing acceleration, or an incorrect over-speed threshold.

This error indicates that the motor speed has exceeded a safe limit while traveling in the reverse direction of the intended 'riding' or forward direction. This is a critical safety fault, often triggered by unintended reverse motion or a severe control issue.

This error indicates a disconnection or a break in the R+ and R- lines, which are typically used for a specific control, communication, or safety circuit within the system. Loss of signal on these lines can disrupt critical functions or safety interlocks.

This error indicates a malfunction or complete breakdown in the Digital Signal Processor (DSP) within the drive's control unit. The DSP is essential for executing control algorithms and managing all drive operations, therefore its failure will render the drive inoperable.

This fault occurs when the leveling switch fails to function during elevator travel, excluding inspection service, beyond the delay period set by parameter F62. It signifies that the lift has moved outside the leveling zone for an extended duration without corrective action.

This fault is triggered when an overheat input signal is detected on terminal X25, indicating that the motor has exceeded its safe operating temperature. This is typically activated by a thermal sensor integrated within the motor's windings or casing.

This error indicates that slippage due to reversed motor rotation has occurred for more than 0.5 seconds. Specifically, it is recorded if speed feedback from Port A and B on the master control PCB shows values less than -150 mm during upward travel or greater than 150 mm during downward travel, signifying movement in the unintended direction.

This fault is recorded if the actual speed feedback exceeds the permitted speed for 0.1 seconds. The permitted speed is calculated as (0.25 m/s + Reference Speed) for reference speeds under 1.0 m/s, or (1.25 x Reference Speed) for reference speeds over 1.0 m/s, with a maximum limit of 1.08 x Rated Speed. It also triggers if speed feedback exceeds 0.8m/s² deceleration at terminal landings for 0.1s.

This fault is recorded if the speed feedback falls below the permitted speed threshold for 0.5 seconds. The permitted speed is calculated as (Reference Speed - 0.25m/s) for reference speeds under 1.0 m/s, or (0.5 x Reference Speed) for reference speeds over 1.0 m/s.

This error occurs when the lift fails to receive any leveling signal within the specified time limit defined by parameter F62. The default time limit is 32 seconds, with a configurable range between 20 and 45 seconds according to GB7588-2003. A prolonged absence of leveling signals indicates a failure in position detection during car movement, potentially due to slippage.

This error occurs when the up-leveling switch fails to operate after the lift has initiated deceleration for stopping, or if the switch's activation or deactivation falls outside the specified maximum effective or ineffective protection distances. These distances are calculated based on leveling vane length and floor distances.

This error occurs when the down-leveling switch fails to operate, or if the switch's activation or deactivation falls outside the specified maximum effective or ineffective protection distances. These distances are calculated based on leveling vane length and floor distances.

This error indicates that the cooling system responsible for the power module has detected an over-temperature condition. This protective measure will typically lead to a thermal shutdown of the drive to prevent damage to the sensitive power components from excessive heat.

This fault indicates that the critical safety circuit of the lift has been interrupted or opened while the lift was in service. This is a protective measure to immediately halt lift operation when a safety condition is violated.

This fault presents in two scenarios: either the KMC contactor's output from the master control PCB is off, but an input signal indicates the contactor is closed (stuck-up), or the KMC output is on, but no input signal is detected, implying a failure to close. This indicates a discrepancy between the commanded state and the actual status of the KMC contactor.

This fault signifies that the brake contactor (KMB) is reporting a closed contact status via its detecting terminals (including the two rear detecting terminals), despite there being no output from the KMB relay on the master control PCB. This indicates the KMB contactor's contacts are stuck in the closed position when they should be open.

This error signifies a fault within the regenerative braking unit or its associated braking resistors. This system is crucial for dissipating excess energy generated by the motor during deceleration, and a breakdown can cause DC bus overvoltage.

This error indicates that a protective fuse within the drive or its associated power circuit has blown. A blown fuse typically points to an overcurrent condition or a short circuit occurring either upstream or downstream of the fuse.

This error indicates that the motor torque has exceeded a predefined maximum limit set in the drive. This typically occurs when the mechanical load on the motor is too high, or acceleration/deceleration ramps are configured too aggressively, demanding excessive torque.

This error indicates a significant difference between the commanded speed and the actual motor speed, exceeding an allowed tolerance. This suggests a problem with the drive's speed control, speed feedback mechanism, or a mechanical issue affecting motor speed.

This error indicates that the DC bus voltage within the drive has exceeded its maximum permissible limit. This condition is commonly caused by regenerative energy from the motor during deceleration, excessive input voltage, or a malfunction of the braking unit.

This error indicates that the DC bus voltage within the drive has dropped below its minimum permissible limit. This typically occurs due to an insufficient or unstable input power supply, or a sudden voltage sag in the AC mains.