Hi,
I am trying to simulate a model, where tank one is initialized with water level and then a valve is attached to it controlled by a signal. The water then flows through a pipe to a pump and is circulated back to tank. The model gets compiled, but when I try to simulate it with valve signal I get initialization errors. I have just started using modellica, any help would be truely appreciated. Attached is my model.

Thanks

Best regards,
Anki