1.4 Approvals and Certifications Illustration 1: Approvals and Certifications More approvals and certifications are available. Contact the local Danfoss office or partner. Drives of voltage T7 (525–690 V) are UL certified for only 525–600 V. Thermal memory retention requirement The drive complies with UL 61800-5-1 thermal memory retention requirements. For more information, refer to the Motor Thermal Protection section in the product-specific design guide.
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There is a risk for overvoltage. Isolation between components and critical parts could be insufficient, and may not comply with PELV requirements. Use external protective devices or galvanic isolation. For installations above 2000 m (6500 ft) altitude, contact Danfoss regarding PELV compliance.
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Operating Guide | VLT® Refrigeration Drive FC 103 N O T I C E OUTPUT CONTACTOR Danfoss does not recommend using an output contactor on 525-690 V drives that are connected to an IT mains network. Procedure 1. Strip a section of the outer cable insulation.
RS485 is a 2-wire bus interface compatible with multi-drop network topology. This interface contains the following features: • Either Danfoss FC or Modbus RTU communication protocol can be used. • Functions can be programmed remotely using the protocol software and RS485 connection or in parameter group 8-** Communications and Options.
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8.4.15 ALARM 15, Hardware Mismatch Cause A fitted option is not operational with the present control card hardware or software. Troubleshooting Record the value of the following parameters and contact Danfoss. • Parameter 15-40 FC Type. • Parameter 15-41 Power Section.
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Check that the option is properly installed. • Check for loose or missing wiring. It may be necessary to contact the Danfoss supplier or service department. Note the code number for further troubleshooting directions. Table 40: Internal Fault Codes Number Text The serial port cannot be initialized.
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8.4.47 ALARM 50, AMA Calibration Failed Troubleshooting • Contact the Danfoss supplier or service department. 8.4.48 ALARM 51, AMA Check Unom and Inom Cause The settings for motor voltage, motor current, and motor power are wrong.
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The control card and power card are incompatible. Troubleshooting • To check compatibility, contact the Danfoss supplier with the type code from the unit nameplate and the part numbers on the cards. 8.4.68 ALARM 71, PTC 1 Safe Stop Cause ®...
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(IE/IE3 border line). Lower efficiency motors add to the power loss in the drive. Applies for dimensioning of drive cooling. If the switching frequency is higher than the default setting, the power losses can increase. LCP and typical control card power consumptions are included. For power loss data according to EN 50598-2, refer to www.danfoss.com/ vltenergyefficiency.
(IE/IE3 border line). Lower efficiency motors add to the power loss in the drive. Applies for dimensioning of drive cooling. If the switching frequency is higher than the default setting, the power losses can increase. LCP and typical control card power consumptions are included. For power loss data according to EN 50598-2, refer to www.danfoss.com/ vltenergyefficiency.
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(IE/IE3 border line). Lower efficiency motors add to the power loss in the drive. Applies for dimensioning of drive cooling. If the switching frequency is higher than the default setting, the power losses can increase. LCP and typical control card power consumptions are included. For power loss data according to EN 50598-2, refer to www.danfoss.com/ vltenergyefficiency.
(IE/IE3 border line). Lower efficiency motors add to the power loss in the drive. Applies for dimensioning of drive cooling. If the switching frequency is higher than the default setting, the power losses can increase. LCP and typical control card power consumptions are included. For power loss data according to EN 50598-2, refer to www.danfoss.com/ vltenergyefficiency.
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Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed. All trademarks in this material are property of the respective companies.
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