Thread: Hello everyone!
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Old 11-12-2007, 07:55 PM
ed_denu ed_denu is offline
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Default Re: Hello everyone!

You need to supply a little more information on how you are attempting to set this up. List the pid contact points you are using for the contactor and the settings for the pid. Also how you are wiring the contactor.

Here are a couple of things to look at also. Your contactor is a 120 vac model, so you cannot use the SSR connection points on the pid as these are DC only. The pid instructions should include a setting(usually called 'outy') which when changed(most likely to '1') allows for use of a 120 vac relay thru the J2 contacts.

You can trouble shoot many of these issues by using a multimeter to determine voltage at various points and settings. If you cannot get the contactor to enable power to the elements do this simple test. Set the target temperature of the pid to something greater than the ambient temperature. At this point the pid should energize the contactor to call for heat. Check the voltage at the contactor coil input tabs. You need to be reading 120 vac. If not, then the pid is not enabling the contactor so check the items I mentioned above. If you are seeing 120 vac input to the contactor coil, then check each leg of the contactor input and output. The elements need 240 vac to heat, they will not heat if only one 120 vac feed is present.

Last edited by ed_denu; 11-12-2007 at 08:29 PM.
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