Microshift provides the simple, safe and reliable means for bridge controlling vessels with fixes pitch propellers and reversing gearboxes. 
ENGINE SPEED CONTROL VIA 0-10v, 0-20mA or 0-1 AMP SIGNAL AND SWITCH VOLTAGE TO SOLENOID OPERATED CLUTCHES. 
 
Microshift is a proven control system module that provides sequential control and safety interlock for the engine speed and gearbox clutches. Module type AG6324/M provides a mechanical control interface for both the engine speed setting and clutch control. With this mechanical option, emergency manual control is provided via the levers on the outside of the unit. Vessels that require either the engine speed setting or the clutch control to be electric, are catered for by the AG6324/M2 unit. Up to 4 independent control stations can be connected with pre-programmed control station transfer options, which are switch selectable during commissioning. 
 
MICROSHIFT ACTUATOR - MECHANICAL DESIGN 
The mechanical motion to control engine speed and gearbox clutches is derived from a precision lead screw that is driven direct from a high quality stepper motor. This elegant solution avoids the need for reduction gearboxes and also allows the actuator to be back driven with the power off, thus providing a convenient emergency manual control facility which is a requirement of Surveying Societes. 
 
MICROSHIFT BRIDGE CONTROL LOGIC FEATURES FOR AG6324/M & AG6324/M2 SYSTEM SAFETY 
Engine start inhibit unless is “on” and clutch actuator is set to neutral 
Engine revs increased during clutch engagement 
Variable delay on opposite direction manoeuvres 
System self diagnostic 12 status LED’s 
Volt free output to operate ships alarm system 
 
SYSTEM SELECTION SWITCHES 
Direction of speed setting actuator 
Clutch engage speed boost time 
Direction for clutch setting actuator 
Clutch actuator travel 
Sequence for Station-In-Control transfer 
Opposite direction delay with clutch held engaged or set to neutral 
 
POTENTIOMETER SETTINGS 
Clutch engagement speed boost 
Speed setting actuator stroke 
Sets rate for engine speed increase 
Opposite direction manoeuvre delay ramp 
 
 
ADDITIONAL FEATURES AVAILABLE WITH THE AG6324/M2 UNIT (this card has all the features of the basic card and the following additional features) 
Current or voltage output for electronic governor control 
Switched output for solenoid operated clutches 
Voltage output to operate trolling valve logic, which is sequenced with gearbox clutches and engine speed control. 
Facility to inhibit opposite direction manoeuvres interlocked from propeller shaft speed switches 
 
 
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