Why will the motor not brake on my Danfoss DC Drives?
If the motor won't brake with your Danfoss DC Drives, it could be due to incorrect settings in the brake parameters or ramp-down times that are too short. Check parameter group 2-0* DC Brake and 3-0* Reference Limits.
What to do if Danfoss VLT FC 103 DC Drives trip lock?
If a Danfoss DC drive experiences a trip lock, it means an alarm occurred, and the motor has stopped. To resolve this, first, identify and clear the cause of the alarm. Then, reset the drive by: pressing the [Reset] button, using remote control terminals, or via serial communication.
Why is the Danfoss Media Converter motor current imbalanced?
A motor current imbalance greater than 3% can be caused by a problem with the motor or motor wiring. If the imbalanced leg follows the wire, the problem is in the motor or motor wiring. Check the motor and motor wiring. If the imbalance leg stays on the same output terminal, it indicates a problem with the unit, and you should contact the supplier.
What to do if Danfoss DC Drives display over current?
If Danfoss DC Drives display an over current error, it means the inverter peak current limit (approximately 200% of the rated current) has been exceeded. Turn off the frequency converter and check if the motor shaft can be turned and if the motor size matches the frequency converter.
What to do if Danfoss DC Drives display AMA check Unom and Inom?
If Danfoss DC Drives display AMA check Unom and Inom, it means the setting of motor voltage, motor current, and motor power is presumably wrong. Check the settings.
What causes intermittent display on Danfoss Media Converter?
An intermittent display could be caused by an overloaded power supply (SMPS) due to improper control wiring or a fault within the adjustable frequency drive. If the display stays lit, check the control wiring for shorts or incorrect connections. If the display continues to cut out, follow the procedure for display dark.
Why is the motor not running on my Danfoss VLT FC 103 DC Drives?
If the motor is not running with your Danfoss DC Drives, ensure the service switch is not open and the motor connection is secure. If you have a 24 V DC option card, make sure mains power is applied to run the unit. If LCP Stop is active, press [Auto On] or [Hand On] (depending on the operation mode) to start the motor. Apply a valid start signal. Ensure the motor coast signal is not active by applying 24 V on terminal 27 or program this terminal to No operation. Also, verify the correct reference signal source is programmed and wired correctly.
What does DC under voltage mean in Danfoss DC Drives?
If Danfoss DC Drives show DC under voltage, it means if the intermediate circuit voltage (DC) drops below the “voltage warning low” limit, the frequency converter checks if 24 V backup supply is connected.
What to do if Danfoss DC Drives experience a mains failure?
If Danfoss DC Drives experience a mains failure, it means the supply voltage to the frequency converter is lost. Possible correction: check the fuses to the frequency converter.
Why is the Danfoss Controller mains current imbalance greater than 3%?
A mains current imbalance greater than 3% in your Danfoss Controller setup can stem from issues with the mains power supply. If the imbalanced leg follows the wire, it suggests a power problem, so check the mains power supply. Alternatively, the frequency converter itself might be faulty. If the imbalance leg remains on the same input terminal, it points to a problem with the unit, and you should contact the supplier.
General| Protection Class | IP20 |
|---|---|
| Series | VLT FC 103 |
| Input Voltage | 380-480 V |
| Communication Protocols | CANopen |
| Supply voltage | 380-480 V AC |
| Frequency | 50 Hz or 60 Hz |
| Enclosure | IP20 |
Explains the objective and intended audience of the manual for safe installation and commissioning.
Lists supplementary Danfoss documentation and resources for advanced functions and programming.
Lists type approvals and certifications applicable to Danfoss drives for compliance.
Provides instructions for the proper disposal of electrical components according to local regulations.
Defines the standard safety symbols used throughout the manual for hazard indication.
Specifies the required qualifications and knowledge for personnel handling the equipment safely.
Outlines critical safety precautions to prevent injury and equipment damage during operation.
Describes the purpose and design parameters of the enclosed drive for motor speed and torque control.
Explains the basic structure and components of the enclosed drive system, including enclosure types.
Details how to identify the specific drive model and its installed options using the type code on the nameplate.
Provides technical specifications for power ratings, weights, and physical dimensions of drive enclosures.
Covers the control compartment, its overview, door features, and the Local Control Panel (LCP).
Lists the components typically supplied with the enclosed drive and packaging check procedures.
Explains how drives are separated for shipment and the process for reassembly.
Discusses environmental factors affecting drive operation, including condensation and extreme temperatures.
Outlines key requirements for proper drive installation, including mounting, stability, and cable entry.
Details cooling requirements, clearances, and airflow rates for optimal drive performance and preventing overheating.
Covers safety precautions and procedures for safely lifting the heavy drive unit using appropriate equipment.
Guides on installing the enclosed drive, including creating cable entries and securing the cabinet.
Provides critical safety warnings and recommendations for all electrical installation procedures.
Outlines essential practices for ensuring electromagnetic compatibility during electrical installation.
Presents a basic wiring diagram for D9h and D10h drives, illustrating terminal connections.
Shows a basic wiring diagram for E5h and E6h drives, detailing terminal connections.
Explains how to connect various wiring harnesses based on the drive's split shipment configuration.
Covers wiring within the control compartment, including safety, terminals, and option cards.
Details procedures for connecting motor, mains, and ground cables, with important considerations.
Discusses considerations for selecting and installing upstream fuses for protection and includes recommended ratings.
Guides on setting the analog input signal type (voltage or current) using switches and parameters.
Provides a procedure for configuring RS485 serial communication, including wiring and parameter settings.
Directs users to further documentation for STO wiring and its function in safety control systems.
Provides a comprehensive checklist of items to verify before starting the drive and motor for safe operation.
Details the procedure for safely applying power to the drive after installation checks are completed.
Covers parameter overview, navigation, entering system information, and examples for drive programming.
Outlines procedures for testing motor rotation and encoder rotation before system start-up.
Recommends a procedure for initial drive start-up after all setup and programming are completed.
Discusses parameter setting overview, uploading/downloading, and restoring factory defaults.
Introduces common wiring configurations for various applications, referencing default parameter settings.
Shows wiring for AMA with T27 connected, including parameter settings and notes.
Provides wiring configurations for analog speed reference using voltage, current, and potentiometer inputs.
Details wiring configurations for analog feedback signals (current and voltage) using different methods.
Shows wiring for run/stop commands, including options with external interlocks and run permissive.
Illustrates wiring for start/stop commands, including safe torque off and pulse start/stop configurations.
Details wiring and parameter settings for RS485 serial communication network connections.
Explains how to wire for regeneration and the relevant parameters for controlling it.
Shows wiring for a relay setup using Smart Logic Control, including comparator and relay settings.
Explains how status messages are displayed on the LCP during drive operation, covering modes and reference sites.
Outlines normal maintenance requirements and procedures for ensuring drive longevity and preventing issues.
Categorizes and describes the types of warnings and alarms the drive can generate, with initial troubleshooting steps.
Provides a table of common symptoms, possible causes, tests, and solutions for diagnosing drive issues.
Provides detailed electrical data tables for various models and voltage ranges (380-480 V and 525-690 V AC).
Specifies the motor output voltage, frequency, and torque characteristics of the drive.
Outlines environmental operating conditions, including temperature, humidity, altitude, and EMC standards.
Provides specifications for motor and control cable lengths and cross-sections for optimal installation.
Details specifications for control card features, digital I/O, analog signals, and relay/pulse outputs.
Lists specifications for Passive Harmonic, Line Reactor, dU/dt, and Sine-wave filters.
Covers options for fuses, contactors, fusible disconnects, non-fusible disconnects, and MCCBs.
Provides exterior dimensions for D9h, D10h, E5h, and E6h enclosures with standard pedestals.
Illustrates enclosure airflow requirements and clearances for proper ventilation.
Lists recommended torque values for various fasteners to ensure correct electrical connections.
Explains the document's conventions for lists, text formatting, and cross-references.
Provides a glossary of abbreviations, acronyms, and symbols used throughout the manual.
Details parameter settings needed for drive options after a factory reset to ensure proper functionality.
Presents electrical power flow block diagrams for D9h/D10h and E5h/E6h enclosure configurations.
Lists power loss data for various input power options like contactors, disconnects, and MCCBs.
To Next Page