User Manual Q&AAnswer
Jan 30, 2025 - 02:09 AM
The LIFT/FLOAT/GND switch on the ADDAC711 Balanced Inputs module allows you to choose between lift, ground, or floating ground. Here's a breakdown of each setting and when it might be best to use them:
1. LIFT position (left): In this position, the module circuit is "lifted" to ground through a 100R resistor and a 10nF capacitor. This setting provides some isolation between the inputs and outputs, helping to prevent ground loop induced hum. It can be a good option when you suspect a ground loop issue and want to break the ground connection between your modular system and external hardware.
2. FLOAT position (middle): When the switch is in the FLOAT position, ground will not be shared between the inputs and outputs. This setting provides the highest level of isolation, completely separating the grounds of the ins and outs. It can be useful when you want to eliminate any potential interference or ground loop issues completely.
3. GND position (right): In the GND position, ground is shared between the inputs and outputs, and no isolation is used. This setting can be suitable when you don't have any ground loop issues or interference and want to maintain a direct ground connection between your modular system and external hardware.
It's important to note that the best setting for the LIFT/FLOAT/GND switch may vary depending on your specific setup and the presence of ground loop issues or interference. We recommend experimenting with different settings to find the one that works best for your particular situation.
For further assistance or any additional questions, you can contact ADDAC System at addac@addacsystem.com.
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