So I'm really newbie in VFD and automation stuff. That being said, I do have an understanding of electrical devices in general. Now my question: What are the reasons ppl are using contactor for VFD on the line side instead of something like DPST Circuit Breaker?
My initial assumption is that they can turn it on with just a simple button that will close the relay on the AC line. The contactor would also allow the possibility of logic control. That being said, I am not sure if that is the whole picture of the implementation of the contactor on the VFD line side. Would you be able to tell me other reasons for doing so, and if my initial assumption is wrong.
P/s: Are there also any safety-related reasons? I couldn't really think of one on top of my head.
My initial assumption is that they can turn it on with just a simple button that will close the relay on the AC line. The contactor would also allow the possibility of logic control. That being said, I am not sure if that is the whole picture of the implementation of the contactor on the VFD line side. Would you be able to tell me other reasons for doing so, and if my initial assumption is wrong.
P/s: Are there also any safety-related reasons? I couldn't really think of one on top of my head.