Why is the motor speed unstable on my Danfoss Controller?
If the motor speed is unstable on your Danfoss Controller, check the settings in parameter group 1-6* Analog I/O mode. For closed loop operation, verify the settings in parameter group 20-0* Feedback.
What does Braking mean on Danfoss VLT AQUA Drive FC 202?
The 'Braking' indicator on Danfoss DC Drives signifies that the brake chopper is currently in operation, and the brake resistor is absorbing generative energy.
What causes mains current imbalance greater than 3% in Danfoss Controller?
If the mains current imbalance is greater than 3% on your Danfoss Controller, it could be due to a problem with the mains power supply. Check the mains power supply. Alternatively, the problem might be with the frequency converter itself. If the imbalance stays on the same input terminal, contact the supplier.
What to do if Danfoss Media Converter shows Earth (ground) fault alarm?
If the Danfoss Media Converter shows an Earth (ground) fault alarm, it means there's current flowing from the output phases to ground, either in the cable between the frequency converter and the motor, or within the motor itself. To fix this: * Remove power from the frequency converter. * Repair the ground fault. * Check for ground faults in the motor by measuring the resistance to ground of the motor cables and the motor with a megohmmeter. * Perform a current sensor test.
What does DC Hold mean on Danfoss DC Drives?
The 'DC Hold' message on your Danfoss DC Drives means that DC hold is selected in 1-80 Function at Stop and a stop command is active. The motor is held by a DC current set in 2-00 DC Hold/ Preheat Current.
Why is my Danfoss DC Drives motor not running?
If the motor is not running with Danfoss DC Drives, ensure the motor is connected and the service switch is properly closed. If using a 24 V DC option card, apply line power to run the unit. Check if the LCP Stop is active and, if so, press [Auto On] or [Hand On]. Apply a valid start signal and ensure the motor coast signal is not active by applying 24 V on terminal 27 or programming this terminal to No operation. Also, verify that the reference signal source is correctly programmed, checking the wiring and scaling of terminals.
What causes an intermittent display on Danfoss DC Drives?
If the display is intermittent on your Danfoss DC Drives, and the display stays lit, the problem is likely in the control wiring; check the wiring for shorts or incorrect connections. If the display continues to cut out, follow the procedure for a dark display.
What to do if Danfoss Media Converter shows External interlock warning?
If your Danfoss Media Converter shows an External interlock warning, it means the external interlock has been activated. To resume normal operation: * Apply 24 V DC to the terminal programmed for external interlock. * Reset the frequency converter via Serial communication, Digital I/O, or the [Reset] key.
What to do if Danfoss Media Converter shows DC under voltage warning?
If you're seeing a DC under voltage warning/alarm on your Danfoss Media Converter, it means the DC-link voltage has dropped below the undervoltage limit. The converter will then check for a connected 24 V DC back-up supply. If none is found, it will trip after a delay. To resolve this: * Check that the supply voltage matches the frequency converter voltage. * Perform an input voltage test. * Perform a soft charge circuit test.
How to fix DC overvoltage on Danfoss Media Converter?
If your Danfoss Media Converter displays a DC overvoltage warning or alarm, it signifies that the DC-link voltage has surpassed its limit, which will eventually cause the frequency converter to trip. Here's how to address it: * Connect a brake resistor. * Extend the ramp time. * Change the ramp type. * Activate the functions in parameter 2-10 Brake_Function. * Increase parameter 14-26 Trip Delay at Inverter_Fault.
Specifies requirements for personnel authorized to install, operate, and maintain the equipment.
Details critical safety warnings for operation, discharge time, high voltage, and electrical hazards.
Provides steps to identify drive enclosure size and installed options via type code.
Details the control compartment layout, door components, and Local Control Panel (LCP) functions.
Covers ambient conditions, gases, dust, and explosive atmospheres.
Highlights essential safety warnings for electrical installation procedures.
Covers best practices for EMC-compliant installation, including cable shielding and separation.
Details procedures for connecting motor, mains, ground cables, and filters.
Provides recommendations for fuse selection and ratings for IEC and UL installations.
Outlines procedures and checks before applying power, including safety warnings.
Covers parameter overview, navigation, programming examples, and system information entry.
Details procedures for testing motor rotation and encoder feedback.
Provides a recommended procedure for initial drive start-up.
Explains parameter overview, uploading/downloading, and restoring factory defaults.
Categorizes and explains various warning and alarm types, their causes, and indicators.
Offers solutions for common drive symptoms like display issues, motor problems, and power supply faults.
Details electrical specifications, power ratings, and cable requirements for all FC 202 models.
Specifies mains supply voltage, frequency, imbalance, and environment ratings.
Provides data on motor output voltage, frequency, torque characteristics, and ramp times.
Details types of fuses, disconnect switches, contactors, and MCCBs with part numbers.
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General