Amtech Axpert-Eazy AMT-018-4

Questions and Answers

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kleonardSep 5, 2025
What causes Output Current Unbalance in Amtech Axpert-Eazy AMT-018-4?
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  brighttravisSep 5, 2025
  Output Current Unbalance in Amtech DC Drives can stem from various factors. Ensure that the parameters are set properly. Abnormal setting of V/F, Torque Boost, Acceleration time and Speed search function related parameters and current limit may result in output current unbalance. Increase the acceleration time (A201 / A203). If fault occurs during deceleration, increase the deceleration time (A202 / A204). Abnormal setting of DC braking parameters can result in unbalance current fault during deceleration. Reduce the dc braking start frequency (A306) and dc braking time (A308) settings if used.
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Amanda ThompsonNov 19, 2025
What to do if Amtech DC Drives show an Over Current Fault?
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  Blake GonzalezNov 20, 2025
  If your Amtech DC Drive displays an Over Current Fault, several issues could be the cause. First, the power module(s) in the main circuit might be damaged, so switch off the power supply and check them. Second, there may be a loose or improper connection of the current sensor cable, or a short in the cable. In this case, switch off the power supply, remove the cable, and inspect it for proper crimping on both sides. Reinsert the cable securely. If the issue persists, replace the cable. Third, the current sensor itself may have failed, so switch off the power supply, remove the current sensor, and check. If no fault is observed, replace the damaged current sensor. Fourth, the fault may originate from the Driver Board. Switch off the power supply and remove the FRC (in case of wire interface...
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campbellashleySep 18, 2025
What to do if Amtech Axpert-Eazy AMT-018-4 DC Drives show an EEPROM Fault?
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  Nicole TownsendSep 18, 2025
  If your Amtech DC Drive is showing an EEPROM Fault, it means the data received from the EEPROM is incorrect or out of range. On fault reset, default values will be stored in the EEPROM. If the fault occurs again after power recycling, replace PCA-2014A.
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Kevin MorenoSep 16, 2025
How to troubleshoot Auto Tuning Fault in Amtech DC Drives?
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  Holly JohnsonSep 16, 2025
  If you encounter an Auto Tuning Fault in your Amtech DC Drive, it means the auto-tuning process has failed. The motor parameter setting value may be incorrect, so set the correct motor parameter. Ensure that the motor is directly connected to the inverter, removing any additional components like output chokes during auto-tuning.
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Joseph FergusonSep 14, 2025
What to do if Amtech Axpert-Eazy AMT-018-4 DC Drives show an External Fault?
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  Kenneth WhiteSep 14, 2025
  If your Amtech DC Drive displays an External Fault, the signal for the external fault is present at the PSI. Check and correct it. If the signal is not present, remove the selection of the external fault with the help of Mode-C parameters. There may be a problem in PCA-2014A, so remove the control board PCA-2014A.
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Amanda GriffinSep 12, 2025
What does Reference Missing mean on Amtech Axpert-Eazy AMT-018-4?
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  Ashley OlsenSep 12, 2025
  If your Amtech DC Drive shows Reference Missing, the analog current input reference (4-20 mA) to the unit is below 3 mA. Check the voltage level at FSI terminal of PCA-2014A.
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Alicia HillSep 12, 2025
What causes Under Current Fault in Amtech DC Drives?
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  Haley KimSep 12, 2025
  An Under Current Fault in Amtech DC Drives may occur if the Under Current Limit B304 is set too low. Disable the feature by setting 0% in B304.
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Kelly VargasSep 9, 2025
What to do if my Amtech Axpert-Eazy AMT-018-4 DC Drives have Charging Fault?
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  Sonya FreemanSep 9, 2025
  If your Amtech DC Drive displays a Charging Fault, the DC bus voltage didn’t reach the predefined voltage level within 5 seconds after power up. The soft charge resistor may be open. One or more phases may have failed. DC bus voltage feedback may be missing. Ensure proper connection of DC bus voltage feedback at J9.
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howardjillSep 7, 2025
What to do if Amtech Axpert-Eazy AMT-018-4 show an Output Phase Loss?
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  Joseph BowersSep 7, 2025
  If your Amtech DC Drive indicates an Output Phase Loss, it could be due to a single phasing of the motor, so disconnect and check the motor. It can also happen if one or more output cables are open or loosely connected, so check the output connections and correct it.
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Amy ScottAug 22, 2025
What causes Amtech Axpert-Eazy AMT-018-4 to have an Over Voltage Fault?
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  megangrayAug 22, 2025
  An Over Voltage Fault in Amtech DC Drives can occur if the power supply voltage rises above specified limits (785 VDC for 400 V series, 965 VDC for 500 V series, or 1160 VDC for 600 V series). Reduce the voltage to stay within the correct range. It can also happen if the speed is fluctuating.

Summary

Instruction Manual: Axpert-Eazy Series

Important Notices Before Operation

Read this manual thoroughly before use and store it safely. Ensure it's delivered to the final user.

Preface: Precautions For Safety

Chapter 2: Installation and Wiring

Provides information on properly installing and wiring the AC Drive, including environmental considerations.

Chapter 3: Digital Operation Panel (LCD Keypad Module)

Explains the configuration and function of the 8-key Digital Operation Panel.

Chapter 4: Test Operation and Adjustment

Guides through the process of testing and adjusting the AC Drive's operation.

Chapter 5: Control Input;Output Terminals

Details the functions of various input and output terminals on the PCA-2014A control unit.

Chapter 6: Parameter Settings and Functions

Covers parameter settings and functions, organized into modes like Monitor, V/f, Vector, etc.

Chapter 8: Maintenance, Inspection, and Part Replacement

Outlines procedures for maintaining, inspecting, and replacing parts of the AC Drive.

Chapter 10: Encoder Specifications

Chapter 11: Serial Communication Set Up

Details how to set up serial communication for controlling the drive via host computer.

Chapter 13: CE Marking and EMC Compliance

Preface: Important Information

Critical Warnings for Safe Operation

Highlights high voltage hazards, proper handling, and potential damage if warnings are not followed.

Safety Precautions and Qualified Personnel

Chapter 2: Installation and Wiring Guidelines

Installation Environment Requirements

Specifies acceptable ambient conditions and places to avoid for AC Drive installation.

Precautions for Power Supply and Motor Wiring

Precautions for Control Signals Wiring

Chapter 3: Digital Operation Panel and Key Functions

Drive Status Display on Operation Panel

Chapter 4: Test Operation and Adjustment Procedures

Preparation Before Turning Power ON

Lists essential checks and preparations before applying power to the AC Drive.

Motor Constant Initialization in Mode-B

Explains how to input motor rating parameters for initialization in Mode-B.

Automatic Tuning and Adjustment Process

Details the automatic tuning process to measure and adjust motor parameters for optimal performance.

Chapter 5: Control Input and Output Terminals

Programmable Sequence Input (PSI) Wiring

Programmable Analog Input (PAI) Wiring

Programmable Analog Output (PAO) Wiring

Programmable Sequence Output (Open Collector) Wiring

Programmable Sequence Output (Relay) Wiring

Chapter 6: Parameter Settings and Functions

Mode-M: Monitor Parameters Overview

Lists and describes monitor parameters for displaying operating information and status.

Mode-A: Frequency Setting Parameters

Details parameters related to frequency settings, including local, minimum, maximum, and jog frequencies.

Acceleration and Deceleration Time Parameters

Covers parameters for acceleration and deceleration times, including S-curve selection.

Start;Stop Selection and DC Braking Parameters

Explains parameters for start control, stop modes, and DC braking functions.

V;F Characteristics Parameters

Details parameters for setting V/f curves, base frequency, base voltage, and V/F points.

Torque Boost Parameters

Display Parameter Selection for Normal Screen

Frequency Reference Math Operations Parameters

Motor Constant Parameters for Tuning

Details parameters related to motor constants, essential for automatic tuning.

Protection Parameters for Safe Operation

Outlines parameters for stall current limit, overload, and other protection settings.

Limiting Parameter Settings

Covers parameters for adjustable over current, acceleration current, and under current limits.

Mode-P: In-Built PLC Functions

Chapter 7: Electronics Circuit Boards Overview

Main Control Board (PCA-2014 A) Description

Details the main control board's functions, processor, and connections.

Display Board (PCA-2012) Description

Explains the display board's features, microcontroller, and communication protocol.

Power Supply Unit Details

Describes the power supply units used for different series and their output specifications.

IGBT Gate Driver Boards Function

Chapter 8: Maintenance, Inspection, and Part Replacement

Routine Inspection Items

Details daily inspections required for the AC DRIVE, covering environmental and operational checks.

Daily Inspection Checklist

Periodic Inspection Checklist

Chapter 10: Encoder Specifications and Wiring

Applicable Encoder Specifications

Encoder Wiring Example

Chapter 11: Serial Communication Setup

Serial Communication Connection Methods

Host Computer to Axpert-Eazy Connection (1-to-1)

Host Computer to Axpert-Eazy Connection (1-to-Many)

Serial Communication Specifications

Lists communication parameters like baud rate, parity, and protocol.

Introduction to Modbus Protocol

Parameter Description: Fault Codes & Status

Fault History Parameters (Mode-M, Group-4)

Details fault codes, their types, and associated parameter values at the time of occurrence.

Fault Code Details and Bit Level Information

Provides detailed information on fault codes and their status bit meanings.

Control Word for System Configuration

Chapter 12: UL and cUL Compliance Instructions

UL Main Circuit Wiring Recommendations

UL Certified Fuse Selection and Short Circuit Ratings

Lists UL certified fuse types, ratings, and short circuit current capacities for different models.

Chapter 13: CE Marking and EMC Compliance

EMC Directive Installation Environments

Input Filter Connections and Safety

Wiring and Earthing for EMC Compliance

Details cable selection, routing, shielding, and earthing practices for optimal EMC performance.

Installation in a Metal Cabinet for EMC

Control Functions Overview

Operation Specifications Summary

Programmable Analog Output Options

In-built PID Controller

Display Unit and Keypad Features

Protective Specifications and Faults

Lists various protective functions and fault conditions handled by the drive.

Smooth Operation Features

Fault History Logging

Appendix B: Fault Codes and Descriptions

Appendix C: Troubleshooting Guidelines

Jumper Position Settings for Configuration

Fault Name and Causes;Countermeasures

Lists common faults, their potential causes, and recommended countermeasures.