The power supply operates in CV mode when the actual load current is **less than** the current setting (current limit). It automatically switches to CC mode when the load attempts to draw more current than the current setting.
Therefore, to switch from CV mode to CC mode, you can either:
1. Decrease the load resistance to increase the load current until it reaches your current setting.
2. Lower the power supply's current setting to a value below the current being drawn by the load.