I am trying to use the controller board from a Panasonic inverter microwave as a timer but am having no luck getting the relay output to work properly.
The controller board has a 3 wire connector going to the inverter board. I have been able to determine that one pin outputs 1 Htz pulses (appears it would interface to
5v logic). Another pin appears to be an input but I can't figure out what it wants. With nothing connected to any of the three pins the relay shuts off after 3 seconds regardless of the initial time requested. If I jumper the input pin to the center (common?) pin of the connector it will run for 23 seconds before it aborts. Jumper directly from output to input aborts after 3 seconds.
As a simple count down timer with no relay it functions normally. Clearly the inverter board is supposed to send some kind of 'OK' signal to the controller board as a fail safe mechanism. I have not found a schematic online.
Has anyone gotten one of these controllers to work as a power timer?
thanks, kw
----== Posted via Pronews.Com - Unlimited-Unrestricted-Secure Usenet News==----
formatting link
The #1 Newsgroup Service in the World! >100,000 Newsgroups---= - Total Privacy via Encryption =---