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MOTOROLA MVME2603-1161 Channel isolation card

To prevent unexpected starting of machines or parts of machines, power should be removed and dissipated. If this is not practical (e.g. frequent, short work in danger zone), other measures must be taken:

• Measures to prevent random start commands.

• Measures to prevent that random start commands cause unexpected starting.

• Measures to automatically stop dangerous parts of the machine before a dangerous situation can be caused by unexpected starting.

G761 SERIES SERVOVALVES

The G761 Series flow control servovalves are throttle valves for 3- and preferably 4-way applications.They are a high performance, two-stage design that covers the range of rated flows from 1 to 16.5 gpm at 1000 psi valve drop.The output stage is a closed center, four-way, sliding spool.The pilot stage is a symmetrical doublenozzle and flapper, driven by a double air gap, dry torque motor. Mechanical feedback of the spool position is provided by a cantilever spring.The valve design is simple and rugged for dependable, long life operation. These valves are suitable for electrohydraulic position, speed, pressure or force control systems with high dynamic response requirements.