You can see how MACD works on main price chart.

Equivalency #1:

MACD oscillator: MACD line crosses the Signal line.

MACD_CW: Indicator Red line crosses the price bar.

Example in Fig.: Red vertical lines.

Equivalency #2:

MACD oscillator: MACD line crosses Zero.

MACD_CW: Indicator Silver line crosses the price bar.

Example in Fig.: Silver vertical lines.

Equivalency #3:

MACD oscillator: Signal line crosses Zero.

MACD_CW: Indicator Red line crosses Indicator Silver line.

Example in Fig.: Blue vertical lines.