Phase knob: Adjust the start point of the LFO from zero to later in the cycle (when Trigger is on). The available range is 0.00% to 100.00%.
Rate knob: Set the LFO rate or frequency. When Sync is off, rate is adjustable from 0 Hz to 220 Hz. With Sync on, rate is set in beats and sub-beats.
Sync button: Turn on to synchronize the LFO Rate, Attack, and Decay controls with the project tempo. Turn off to freely set the LFO speed, attack and decay times.
Waveform window: Shows real-time changes to the LFO waveform.
Download the guides:
Logic Pro User Guide: PDF