Danfoss VLT AQUA Drive FC 202

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Questions and Answers:

B
Bobby VincentAug 26, 2025
What to do if Danfoss Media Converter shows DC under voltage warning?
- A
  Aaron BruceAug 26, 2025
  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.
D
Danielle RileyAug 27, 2025
What does Current limit warning mean on Danfoss Media Converter?
- V
  Valerie MannAug 27, 2025
  If the Danfoss Media Converter displays a current limit warning, it indicates that the current is higher than the value set in parameter 4-18 Current Limit. To solve this problem: * Ensure that motor data in parameters 1-20 to 1-25 are set correctly. * Possibly increase the current limit, but be sure that the system can operate safely at a higher limit.
A
Amanda BrownAug 27, 2025
How to fix a dark display on a Danfoss Controller?
- C
  Crystal LawrenceAug 27, 2025
  If the Danfoss Controller's display is dark or has no function, start by checking the input power source. Also, check for any missing or open fuses, or tripped circuit breakers, and follow the provided recommendations to resolve these issues. If the LCP isn't getting power, try replacing the faulty LCP or connection cable. Ensure there isn't a shortcut on the control voltage (terminal 12 or 50) or at the control terminals, and that the terminals are wired properly. Verify that you are using the correct LCP (LCP 101 (P/N 130B1124) or LCP 102 (P/N 130B1107)). Adjust the contrast by pressing [Status] + [?]/[?]. If the display (LCP) is defective, replace the faulty LCP or connection cable. For an internal voltage supply fault or a defective SMPS, contact your supplier.
R
Richard WeeksAug 27, 2025
Why is the motor running in the wrong direction on my Danfoss Controller?
- P
  pweeksAug 27, 2025
  If the Danfoss Controller's motor is running in the wrong direction, ensure the motor rotation limit is correctly programmed. Also, check if there's an active reversing signal and deactivate it.
R
Robert MoralesAug 28, 2025
Why is the display on my Danfoss Controller intermittent?
- M
  Mark HarrisonAug 28, 2025
  If the display on your Danfoss Controller is intermittent, it could be due to an overloaded power supply (SMPS) caused by improper control wiring or a fault within the frequency converter. If the display stays lit, check the wiring for shorts or incorrect connections. If the display continues to cut out, follow the procedure for a dark display.
V
Victoria RussellAug 28, 2025
How to increase maximum speed of Danfoss Controller motor?
- A
  Austin KimAug 28, 2025
  If the motor on your Danfoss Controller is not reaching maximum speed, ensure that the frequency limits are correctly programmed. Also, make sure that the reference input signal is scaled correctly by programming the appropriate settings.
G
Gregory RamseyAug 29, 2025
What causes mains current imbalance greater than 3% in Danfoss Controller?
- D
  delacruzdannyAug 29, 2025
  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.
D
dorothymendozaAug 29, 2025
What causes motor current imbalance greater than 3% in Danfoss Controller?
- K
  Katelyn McgrathAug 29, 2025
  If the motor current imbalance is greater than 3% in your Danfoss Controller, it could stem from an issue with the motor or its wiring. Check the motor and motor wiring. If the imbalance remains on the same output terminal, the problem lies within the frequency converters; in this case, contact the supplier.
B
Brittany ClarkAug 30, 2025
Why is the motor speed unstable on my Danfoss Controller?
- M
  Miranda WebsterAug 30, 2025
  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.
A
Amanda PhamAug 30, 2025
Why does the motor run rough on my Danfoss Controller?
- M
  Matthew BakerAug 31, 2025
  If the motor runs rough on your Danfoss Controller, check the motor settings in parameter groups 1-2* Motor Data, 1-3* Adv Motor Data, and 1-5* Load Indep. Setting. This may be due to over-magnetization.