7747 A/C enable

Matt S. Bower m.s.bower at cummins.com
Wed Aug 4 17:41:50 GMT 1999


If you reread the post he said that the drive grounded the relay in both
cases so the driver is the same.  The difference is he wants to invert
the driver control logic so that it works.  One probably used A/C on was
normally open contacts of the relay so that driver was on and the other
one used normally closed contacts on the relay so that the driver was on
to shut the A/C off.  So the question is were can a person change the
logic on the A/C driver bit.



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