The M3492S is a discrete +24VDC signal inverter designed for the ABB ACS 600 series drive. This drive add-on enables the sinking field inputs to the ACS 600 (FORWARD, REVERSE, STOP, and ACCEL/DECEL 2 ) to be inverted to logic 1 (>18VDC) sourcing inputs. Internal transient-suppression diodes permit the drivers to be used with inductive loads such as relays.