4QD Service area Pro series controllers. It is possible to reduce this timing but any modifications should be done with extreme caution . Relays contacts switching while current is flowing cause an arc. Arcs quickly destroy relay contacts.
Arcs are a known cause of otherwise apparently random controller failures.
So decreasing the ramp rates excessively will compromise controller reliability. Furthermore, motors subjected to sudden reversal of direction and high currents can behave erratically. In particular, commutators can arc and furthr compromise reliability. It is for these reasons that we have not earlier released the following details of this modification. Modifying the controllers as described herein will compromise any guarantee .