small frequency drive control

[RTRDave]

Guys this is not my background here so keep me straight. I want to control a small 3gph pump. This is on a waste oil burner in my shop. I want to put an O2 sensor on the exhaust and then take that 0-1 volt signal back to a small frequ drive to run the pump faster if the mixture is lean or slower if the mixture is rich. I want to avoid a PLC and I want to do it a cheaply as possible. If it is a DC drive and motor I'll go that route.if you tell me I can find an AC drive that small....I'll do that.

In short......AC or DC.......How do I do this without a PLC?............Are there drives out there that will be directly compatable with the 0-1 volt generated by the O2 sensor? And what company and drives will be my best bet to look at?

Any "constructive" input will be appreciated

Thanks in advance for your help

RTRDave

 

[jraef]

You MUST have a drive that has PID or at least PI control built-in if you want to do this without a PLC or some other intellegent device. There are several out there that have this, but be aware that the cheapest ones usually do not. PI control will prevent the drive from "hunting" back and forth as your signal and output change on each other.

By the way, 3gph means nothing to most drive suppliers. You need to express your needs in HP (or kW) and available voltage.

"Venditori de oleum-vipera non vigere excordis populi"