Linear Motor Table LT - IKO NIPPON THOMPSON America - #9

Table 6 Specifications of I/O connector (CN5)

A thrust is a force in the moving direction exerted by the moving coil as shown in figure (page 4) illustrating Prin­ciple of Operation. The thrust becomes the maximum when the table is at rest, and decreases as the table speed increases. The thrust required for acceleration or deceleration must be examined referring to the graphs of thrust characteristics on page 10 to 12.

A dynamic load mass is the maximum mass that can be placed on the table with required acceleration or decel­eration. When examining an operation pattern, the rela­tionship between the mass of load and acceleration/de­celeration must be considered because if the mass is larger, acceleration and deceleration have to be lower. The graphs showing the relationship between the dynamic load mass and acceleration on page 10 to 12 are given for the thrust of Linear Motor Table LT at a speed of 1000 mm/s. For example, the acceleration/deceleration under the load of 10kg is about 24m/s² in maximum in the case of LT150CG.

An effective thrust is the effective value of the thrust re­quired in a given operation pattern. When this value ex­ceeds the rated thrust of Linear Motor Table LT, the mo­tor may overheat or seize. Therefore, make sure that, in principle, the calculated effective thrust does not exceed the rated thrust. Also, note that the operation limit may depend on the operation environment, etc. In general, the effective thrust (Frms) is obtained as follows. (For a calculation example, see page 17.)

F P² X t a +( _F P - 2 X F l) ² X ₂ a + F l² X ₂c

•General circuit

where, Fp is the force required for acceleration/decelera­tion. Fl is the force due to running resistance consists of the friction of liner motion rolling guide incorporated in Linear Motor Table LT, the pulling resistance of electrical cord, etc.

Time

Time

1N=0.102kgf=0.2248lbs. 1mm=0.03937inch 16

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