Panasonic inverter microwave controller as timer
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==---- http://www.pronews.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= - Total Privacy via Encryption =--- |
Panasonic inverter microwave controller as timer
On Nov 24, 10:09*am, Ken Wright wrote:
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==----http://www.pronews.comThe #1 Newsgroup Service in the World! 100,000 Newsgroups ---= - Total Privacy via Encryption =--- The timer is looking for some saftey logic from the power supply I havent really looked at it but I can get you a schematic. Email me. |
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