130B1168 Danfoss
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The Danfoss 130B1168 is part of the VLT Control Cards series and offers 2 analog inputs, 6 digital inputs, 2 digital outputs, and 2 relay outputs. This control card provides a 10 V reference output, 200 mA 24 V output current, and includes an RS-485 interface along with a USB 1.1 Full-Speed port.
Internal Product Review
The 130B1168 VLT Control Card from Danfoss features two analog inputs with 10-bit resolution and six digital inputs for extensive signal handling. This model offers three option slots and an RS-485 interface, ensuring flexible system integration. The control card stands out for its versatile input/output capacity and reliable communication options.
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Product Description:
The 130B1168 control card is manufactured by Danfoss and belongs to the VLT Control Cards series. Installed in a VLT drive, it expands the drive’s built-in I/O so the inverter can exchange process signals with field devices and higher-level supervisory systems. Within an automation cell, the board provides stable references, acquires analog feedback, and passes discrete control states to the drive, allowing the host inverter to regulate speed or torque based on real-time machine conditions.
A buffered reference pin supplies 10 V, letting external potentiometers or transmitters receive a stable scaling voltage for the drive’s analog channels. The card also supplies auxiliary power at 24 V with up to 200 mA, which is sufficient for proximity switches or small loop transmitters. Two differential converters accept process signals with a resolution of 10 bits, providing 1,024 discrete counts for setpoint accuracy. With 2 analog inputs available, both speed and pressure feedback can connect directly to the drive. Discrete control is handled by 6 digital inputs, which accept PNP or NPN logic for start, stop, and preset selection. The card occupies one of 3 option slots in the drive backplane, leaving room for additional communication or feedback modules.
Output signaling is handled by 2 digital outputs that can drive status lamps or interlock circuits at field voltage, while 2 relay outputs with changeover contacts are suitable for contactors or alarm horns. Communication with legacy monitoring systems is available through the RS-485 interface, and a USB 1.1 full-speed port supports quick parameter cloning during system setup. One analog output provides a retransmitted process variable for external recorders. Because the card does not include Safe Stop, any emergency stop function must be implemented through an external safety chain.
