PNT-202 - Over Speed Trip

Used In Connection With The SPV-200 Solenoid Pneumatic Valve

When the present setpoint overspeed is reached, the PNT-202 trips the SPV-200 Solenoid Pneumatic Valve. The valve opens, latches, bleeds to the atmosphere and shuts down the engine if it is connected to the engine pneumatic control system.  The PNT-202 also effects shutdown when one of the pickup signals disappears or when an attempt is made to start up with only one operational pickup.

The second setpoint can trip the same valve or a separate valve. It can be field programmed as an underspeed setpoint, or as a second overspeed setpoint, or crank disconnect.  When set for underspeed, no inhibit is necessary on startup as this setpoint becomes enabled only when the speed exceeds the setpoint.

PNT-202 - Over Speed Trip