Place butter, celery, onion and garlic into the instant pot. Press the saute option and saute the items until celery is tender and onion is translucent.
Add spices and mix well.
Add beans, broth and water and mix well.
Close the instant pot and quick release pressure valve. Set the pot to manual, high pressure for 30 minutes. Once the cooking cycle is done, let the soup sit for 10 minutes. Release pressure.
Serve black bean soup with fresh cilantro as-is or carefully use an immersion blender to puree the beans before serving with cilantro.