For the I12T11, if the inputs appear not to be working, check that the inputs are set as the fixed assignment. The Compax3 ServoManager software's default is free. If this changed to fixed assignment, the inputs are set as the Quit (I0), Start (I1), No Stop (I2), etc.
Step 12 of 16 of the Drive Configuration has the Device I/O assignment that can be changed to Fixed Assignment. This defines the I0 as the Quit input (positive edge) and will acknowledge faults.
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