What causes Read / Write fault of control board EEPROM in hpmont Controller?
- JJonathan GonzalezSep 23, 2025
A read/write fault of the control board EEPROM in the hpmont Controller signifies a memory circuit fault of the control board EEPROM.

What causes Read / Write fault of control board EEPROM in hpmont Controller?
A read/write fault of the control board EEPROM in the hpmont Controller signifies a memory circuit fault of the control board EEPROM.
What to do if hpmont HD3L Controller shows 'Acc overcurrent'?
If the hpmont Controller displays an 'Acc overcurrent' error, it could be due to an improper connection between the controller and motor, incorrect motor parameters, an undersized controller, or a too-short Acc/Dec time. Ensure the controller and motor are properly connected, verify the motor parameters, select a controller with a higher rating if necessary, and adjust the Acc/Dec time.
What causes hpmont Controller overload and how to fix it?
Controller overload in your hpmont device can occur if the Acc time is too short, the V/f curve or torque boost settings are incorrect, the mains supply voltage is too low, or the motor load is too high. Try adjusting the Acc time and V/f curve or torque boost settings. Also, check the mains supply voltage and consider using a controller with a proper power rating.
Why does hpmont HD3L Controller show 'Motor overload'?
The hpmont Controller may indicate a motor overload because of an improper V/f curve setting, low mains supply voltage, an incorrectly set motor overload protection factor, or a locked-rotor/overloaded motor. Adjust the V/f curve, check the power input, properly set the overload protection factor of the motor, and inspect the load and mechanical transmission devices.
What to do if hpmont Controller shows 'Acc over voltage'?
If the hpmont Controller is showing an 'Acc over voltage' error, the input voltage might be too high, the deceleration time might be too short, or the wiring is improper. Check the power input, set a proper value for Dec time, and verify the wiring.
What to do if hpmont Controller shows 'Fault of external equipment'?
If the hpmont Controller indicates a 'Fault of external equipment', the fault terminal of external equipment operates. Check external equipment.
What causes parameter auto-tuning fault on hpmont Controller?
A parameter auto-tuning fault on the hpmont Controller indicates that the parameter auto-tuning has timed out. Check the motor connection and input correct nameplates parameters.
What causes soft start contactor failed in hpmont Controller?
A soft start contactor failure in the hpmont Controller can result from a contactor fault or a control circuit fault. Replace the contactor.
What causes motor overheat in hpmont HD3L Controller?
Motor overheat with the hpmont Controller can be due to the motor overheating, incorrect connection of the motor overheat terminal, or incorrect motor parameter settings. Reduce the load, increase the Acc / Dec time, repair or replace the motor, detect whether the overheat detection input signal is correct and set the motor parameter according to the nameplate.
How to fix faulty setting of parameters on hpmont HD3L Controller?
Faulty parameter settings on the hpmont Controller can result from a significant difference in power rating between the motor and controller, or from incorrect motor parameter settings. Select a controller with a suitable power rating and set the correct value of motor parameters.
| Brand | hpmont |
|---|---|
| Model | HD3L Series |
| Category | Controller |
| Language | English |
Defines "Danger", "Warning", and "Note" for safety hazard and product operation.
Discusses motor characteristics compared to industrial frequency and thermal protection.
Details about HD3L, including output side, contactors, voltage, and lightning surge protection.
Explains derating of output current based on altitude and provides a derating curve.
Details the model naming convention and its components.
Explains the information provided on the HD3L product nameplate.
Lists rated values for different HD3L models, including capacity, input/output current, and size.
Provides detailed electrical, performance, and protection specifications for the HD3L.
Illustrates and identifies the main components and connection terminals of the HD3L.
Lists essential safety precautions for installing the HD3L controller.
Specifies environmental and physical requirements for the installation location.
Details the recommended mounting direction and clearance for heat dissipation.
Provides dimensional data and weight for different HD3L sizes.
Instructions on how to install and remove the HD3L keypad.
Step-by-step guide for removing the upper and lower plastic covers of the HD3L.
Lists critical safety precautions for electrical wiring and connections.
Guidance on selecting appropriate wiring specifications for accessories.
Covers the main power input and motor output connections.
Illustrates the wiring diagram for connecting power supply and motor.
Highlights safety considerations for control and I/O circuits.
Details the functions and connections of the control board terminals.
Describes the functions and connections of the I/O board terminals.
Information on Modbus communication terminal and RJ45 usage.
Explains jumper settings for signal selection and configuration.
Provides guidance on connecting digital input and output signals.
Details how to correctly install the controller to meet EMC requirements.
Specifies wiring practices to avoid interference and ensure signal integrity.
Addresses considerations for motor cable length and carrier frequency.
Explains proper grounding methods for safety and EMC compliance.
Describes the function and common mistakes in using EMI filters.
Methods to reduce conducted, radiated, and RF interference.
Information on AC input, DC, and AC output reactors.
Introduces operation modes and control modes of the HD3L.
Defines how HD3L receives run and speed commands.
Explains the two control modes: V/f and SVC.
Describes various status indicators and conditions of the controller.
Details different running modes like auto-tuning, inspection, and battery-driven.
Overview of the HD3L keypad layout and key functions.
Explains how the keypad displays status during stop, run, edit, and alarm conditions.
Illustrates common keypad operations like parameter setting and password management.
Provides a checklist and procedure for initial power-up.
Introduces status display parameters for the controller.
Details parameters showing controller series, software versions, and status.
Parameters related to drive status, including speed, frequency, voltage, and current.
Parameters for displaying analogue input and output values.
Parameters showing heatsink temperature, terminal status, and fault information.
Introduces general parameter groups for configuration.
Covers fundamental parameters like motor type, control mode, and operating mode.
Parameters for user password, menu mode, and initialization functions.
Parameters controlling the start and stop sequences, including delays and ramp times.
Parameters for acceleration and deceleration S-curve adjustments for ride comfort.
Defines analogue input characteristic curves for speed and weighing.
Parameters for setting multi-speed, inspection, and battery-driven running speeds.
Parameters for pre-torque selection and digital weighing signal settings.
Parameters for asynchronous motor characteristics and auto-tuning.
Parameters for tuning the speed-loop in vector control mode.
Configuration for digital input and output terminals.
Configuration for analogue input and output terminals, including bias and gain.
Parameters for serial communication settings like data format and baud rate.
Parameters for controlling the LCD keypad display language and contrast.
Parameters related to fan control, brake unit, and speed settings.
Parameters for motor overheat, voltage loss, and fault auto-reset settings.
Parameters related to PWM carrier frequency and overmodulation.
Parameters reserved for factory commissioning before delivery.
Steps for basic commissioning of the elevator system with HD3L.
Recommends analyzing application requirements before designing wiring.
Guides on setting essential parameters for elevator control.
Procedure for performing motor parameter auto-tuning.
Steps for conducting inspection running after auto-tuning.
Adjustments for shake-free start and stop, and leveling precision.
How HD3L receives and processes digital commands for MS control.
How HD3L processes analogue speed and direction commands.
Procedure for enabling battery-driven run mode during power outages.
Lists common faults, their reasons, and corresponding counter-measures.
Provides guidelines for daily and periodic maintenance to ensure longevity.
Details the keypad mounting base and extension cable accessories.
Table listing AC and DC reactor models and their parameters.
Recommendations for selecting braking resistors based on motor power.
Reference to the user manual for the Power Regenerative Unit.
Lists parameters for displaying controller status and running information.
Details parameters related to drive status like speed, frequency, and current.
Parameters for displaying analogue input and output signal values.
Parameters showing heatsink temperature, terminal status, and MODBUS status.
Fundamental parameters for motor type, control mode, and operating mode.
Parameters for user password, menu mode, and function initialization.
Parameters for controlling start/stop delays, ramp times, and zero-speed retention.
Parameters for adjusting acceleration, deceleration, and jerk for ride comfort.
Settings for analogue input characteristic curves.
Parameters for multi-speed, inspection, and battery-driven running speeds.
Parameters for pre-torque selection and digital weighing signal inputs.
Parameters for asynchronous motor characteristics and auto-tuning.
Parameters for tuning the speed-loop in vector control mode.
Configuration settings for digital input and output terminals.
Configuration settings for analogue input and output terminals.
Parameters for serial communication like data format and baud rate.
Parameters for LCD keypad display language and contrast.
Parameters for fan control, brake unit, and speed signal delay.
Parameters for motor overheat, voltage loss, and fault auto-reset settings.
Parameters related to PWM carrier frequency and overmodulation.