KJ3222X1-BA1 CE4003S2B3 Control module

that the controller works with one > m command at a time. As a consequence, one function may be masked by another. For example, if the function >100000 is followed by >5000, and the distance for deceleration is not sufficient, the second condition will not be met. The controller will attempt to lower the speed to 5000, but will reach that at a different point.

To illustrate the ability to interrogate the motion status consider the first motion segment of our example, #LMOVE, where the A axis moves toward the point A=5000. Suppose that when A=3000, the controller is interrogated using the command ‘MG _AV’. The returned value will be 3000. The value of _CS, _VPA and _VPB will be zero.

Changing Feedrate

The command VR n allows the feedrate, VS, to be scaled between 0 and 10 with a resolution of .0001. This command takes effect immediately and causes VS to be scaled. VR also applies when the vector speed is specified with the ‘<’ operator. This is a useful feature for feedrate override. VR does not ratio the accelerations. For example, VR .5 results in the specification VS 2000 to be divided in half.

Linear Interpolation Motion 

In this example, the AB system is required to perform a 90° turn. In order to slow the speed around the corner, we use the AV 4000 trippoint, which slows the speed to 1000 count/s. Once the motors reach the corner, the speed is increased back to 4000 cts / s.

The command VM m,n,p where ‘m’ and ‘n’ are the coordinated pair and p is the tangent axis. NOTE: the commas which separate m,n and p are not necessary. For example, VM ABC selects the AB axes for coordinated motion and the C-axis as the tangent.

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