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Lenze i55AE155F - User Manual

Lenze i55AE155F
702 pages
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Inverter
Inverter i550 Cabinet 0.25 ... 90 kW
Commissioning | EN

Table of Contents

Questions and Answers

  • T
    tristan09Aug 17, 2025
    How to fix continuous overcurrent inside Lenze i55AE155F?
    • A
      Alejandro ClarkeAug 17, 2025
      To resolve continuous overcurrent inside the Lenze Inverter: * Check the motor and wiring for any short circuits. * Inspect the brake resistor and its wiring. * Verify the motor circuit connection (delta or star). * Confirm the correct setting of the motor data.
  • C
    Christopher ClaytonAug 19, 2025
    What to do if there is DC bus overvoltage in Lenze i55AE155F?
    • K
      Kelli BeckerAug 20, 2025
      If you're experiencing DC bus overvoltage in your Lenze Inverter, take these steps: * Reduce the dynamic performance of the load profile. * Check the mains voltage. * Verify the settings for the brake energy management. * Connect a brake resistor to the power unit and activate the integrated brake chopper by setting P706.01 to 0.
  • J
    jimenezbrendaAug 22, 2025
    Why does Lenze i55AE155F Inverter show a mains phase fault?
    • A
      Angela MontgomeryAug 22, 2025
      A mains phase fault in your Lenze Inverter can be caused by issues with the power supply. Check the mains connection wiring and inspect the fuses to ensure they are working correctly.
  • S
    Shaun MannAug 25, 2025
    How to troubleshoot overtemperature fault in Lenze i55AE155F Inverter?
    • P
      Philip EwingAug 26, 2025
      To troubleshoot an overtemperature fault in your Lenze Inverter: * Check the mains voltage. * Ensure sufficient cooling by monitoring the heatsink temperature (P117.01). * Clean the fan and ventilation slots or replace the fan if needed. * Reduce the switching frequency (P305.00).
  • S
    Shelby PachecoAug 28, 2025
    What causes high device utilization on Lenze Inverter?
    • L
      Lindsay MclaughlinAug 28, 2025
      High device utilization (Ixt) on your Lenze Inverter can occur due to several reasons. Check the drive dimensions. Reduce the maximum overload current of the inverter (P324.00). If you have high mass inertias, reduce the maximum overload current of the inverter (P324.00) to 150 %.
  • V
    valdezcharlesAug 30, 2025
    How to fix short circuit on motor side of Lenze i55AE155F Inverter?
    • V
      Vernon HerreraAug 30, 2025
      To address a short circuit or earth leakage on the motor side of your Lenze Inverter: * Inspect the motor cable. * Consider the length of the motor cable. * Use a shorter or lower-capacitance motor cable.
  • S
    Samantha SmithSep 2, 2025
    What to do if Lenze i55AE155F shows i²*t overload?
    • W
      Wendy DoughertySep 2, 2025
      If your Lenze Inverter is showing an i²*t overload (thermal state), consider the following: * Verify the drive dimensions. * Check the machine/driven mechanics for excessive load. * Confirm the correct setting of the motor data. * Reduce values for slip compensation (P315.01, P315.02) and oscillation damping (P318.01, P318.02).
  • A
    Alex MathewsSep 4, 2025
    Why is my Lenze i55AE155F motor overheating?
    • A
      Anthony HillSep 5, 2025
      If your Lenze Inverter motor is overheating: * Check the drive dimensions. * Check the motor thermal sensor and wiring (terminals X109/T1 and X109/T2).
  • B
    Brian GutierrezSep 7, 2025
    How to resolve DC bus undervoltage in Lenze i55AE155F Inverter?
    • S
      Stacey PowersSep 7, 2025
      To resolve DC bus undervoltage in your Lenze Inverter: * Check the mains voltage. * Check the fuses. * Check the DC bus voltage (P105.00). * Check the mains settings.
  • P
    Paul KennedySep 12, 2025
    What does '24 V supply critical' mean on Lenze i55AE155F Inverter?
    • D
      dharperSep 12, 2025
      If your Lenze Inverter displays '24 V supply critical': * Check the optional external 24 V voltage supply (terminal X3/24E), if connected. * Check the mains voltage.

Summary

General Information

Read First, Then Start

Provides essential starting guidance and safety instructions before proceeding with installation and commissioning.

Safety Instructions

Basic Safety Measures

Outlines fundamental safety precautions to prevent severe personal injury and material damage.

Electrical Installation

Connection of the Safety Module

Describes the connection of the safety module, including critical warnings about automatic restart.

Commissioning

Important Notes

Provides critical warnings about incorrect wiring and settings during commissioning, emphasizing safety checks.

Save Parameter Settings in the Memory Module

Details how to save parameter settings using the keypad or the EASY Starter software for mains failure protection.

Diagnostics and Fault Elimination

LED Status Display

Explains the meaning of "RDY" and "ERR" LEDs on the inverter for quick information on operating states.

Error Handling

Discusses how the inverter detects errors, protects components, and handles operating errors, warnings, and faults.

Data Handling

Describes inverter behavior when memory module data does not match hardware or firmware, covering automatic and manual loading/saving.

Basic Setting

Mains Voltage

Explains how the rated mains voltage impacts the inverter's operating range and provides a table of settings.

Starting;Stopping Performance

Covers starting performance options like DC braking or flying restart circuit, and stopping performance methods like coasting or quick stop.

Quick Stop

Describes the "quick stop" function as an alternative stop method for faster motor stopping, including its triggers and parameters.

Motor Control

Motor Data

Explains how to set motor data manually, covering parameters like pole pairs, rated speed, frequency, power, and current.

Motor Control Selection

Details the different modes for closed-loop/open-loop motor control supported by the inverter.

Optimisation of Motor Control

Covers functions for further optimizing drive behavior, including V/f voltage boost, skip frequencies, and oscillation damping.

Optimisation of the Control Loops

Covers options for improving total system power by selecting motors, tuning controllers, and performing automatic identification/calibration.

Motor Protection

Covers various monitoring functions to protect the device or motor from destruction or overload.

Configuring the Network

General Network Settings

Covers activating network control, network control words, status words, and data mapping for network registers.

Configuring the Process Controller

Basic Process Controller Settings

Details basic settings for PID control, including activating PID, configuring analog inputs, and selecting setpoint sources.

Additional Functions

Device Commands

Covers device commands for calling organizational functions like saving, loading, and resetting parameter settings.

DC Braking

Details the DC braking function, which generates braking torque by injecting DC current into the motor.

Access Protection

Covers write access protection for inverter parameters via keypad and EASY Starter, restricting parameterization.

Mains Failure Control

Explains the function that decelerates the motor during power failure using rotational energy to maintain DC-bus voltage.

Safety Functions

Safe Torque Off (STO)

Explains the STO function for safely switching off the drive immediately and its operating principle.

Flexible I;O Configuration

Control Source Change-over

Details how to configure the start, stop, and reversal commands flexibly via digital inputs, keypad, or network.

Start; Stop Motor

Covers configuration of triggers for basic motor functions like enable, run, quick stop, and reverse.

Setpoint Change-over

Explains how to change setpoint sources during operation using functions like analog inputs, keypad, network, presets, and MOP.

Reset Error

Explains how to reset an active error by using the "Reset Fault" function or cancelling the start command.

Lenze i55AE155F Specifications

General IconGeneral
BrandLenze
Modeli55AE155F
CategoryInverter
LanguageEnglish

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