On 9/22/2014 10:10 PM, RJ Kanary wrote:
Since this is an E-16 there is no longer a Field
Reversing relay. The only relay in the Field circuit on these is the
Field Weakening relay. With the Armature reversing contactors, the Field
circuit became much simpler.
If it's an E20 type system it is a lot simpler: Card4 has a bad diode. Either replace or get a new card 4 from one of the vendors.
C