176F1470
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The Danfoss 176F1470 PowerCard is part of the VLT PowerCards series and features a revised ST/HVAC/Aqua board variant. It includes two control ribbon connectors, a 3-pin Molex DC bus connector, and status relay contacts rated for 240 VAC at 2 A with a Form C relay type. The mounting locknut torques are 3 N·m for M10 and 2 N·m for M8, and the IGBT screw torque is 4 N·m.
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Product Description:
The 176F1470 PowerCard is a printed-circuit assembly produced by Danfoss for the VLT PowerCards series, functioning as the power stage inside VLT drives where it distributes DC-link energy to the IGBT modules and interfaces with the control card. Within industrial automation this board restores or upgrades variable-frequency drives used on pumps, fans, and general HVAC machinery, returning the inverter to reliable motor-control service.
The electronics on this board follow the ST/HVAC/Aqua Revised variant, meaning component layouts are optimised for standard ventilation, pumping, and water-treatment duty cycles. Power from the DC link enters through a 3-Pin Molex connector, while cooling-fan power is routed by the dedicated MK7 header to simplify field replacement. Two control channels are bridged to the logic section through 2 control ribbon connectors that carry gating and feedback signals. For status signalling, a Form C relay is fitted and its contacts are rated at 240 VAC, 2 A, providing isolated indication of drive health to external monitoring circuits.
Mechanical retention and thermal coupling rely on Torx fasteners: the heatsink bracket uses a T28 bit, whereas the control card is secured with a T20 driver, allowing technicians to match tools precisely. The insulated-gate modules must be tightened to their base with a torque of 4 N·m to ensure uniform pressure and proper heat transfer, and the M10 mounting locknuts are specified at 3 N·m to avoid PCB strain. Additional values—3 N·m for bus screws and 2 N·m for M8 locknuts—define the remaining clamping points, completing the torque map required during installation.
Wake Industrial can arrange same-day shipping for urgent maintenance tasks, and quotations remain valid for 30 days to aid project planning. Operators may also use the free chat tool for general questions regarding type codes or relay configurations.
Frequently Asked Questions about 176F1470:
Q: What is the board variant of the Danfoss 176F1470 PowerCard?
A: This board variant is labeled as ST/HVAC/Aqua Revised, designed for compatibility with specific VLT applications.
Q: What type of DC bus connector is used on the 176F1470 PowerCard?
A: The 176F1470 PowerCard uses a 3-pin Molex connector for the DC bus connection.
Q: What is the contact rating of the status relay on the 176F1470 PowerCard?
A: The status relay on the 176F1470 PowerCard is rated for 240 VAC at 2 A.
Q: What bracket Torx size is required for installing the 176F1470 PowerCard?
A: The specified bracket Torx size for this model is T28, ensuring proper assembly and maintenance compatibility.
Q: How many control ribbon connectors are on the 176F1470 PowerCard?
A: There are two control ribbon connectors provided on the 176F1470 PowerCard.
