Solved
Could you give me a method to restrick vector's values?

I want "omega" to restrict 12.1rpm.
So I tried such as a upper picture.
But I got error. I can't understand why I got error.
could you help me?

I want "omega" to restrict 12.1rpm.
So I tried such as a upper picture.
But I got error. I can't understand why I got error.
could you help me?
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