{HEAD ~ The motor drive fail operating mode} is {TAIL ~ a mode} where the motor drive 105, or a portion thereof, fails 
is
{ HEAD ~ The motor drive fail operating mode } is { TAIL ~ a mode } where the motor drive 105 , or a portion thereof , fails
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH