This is where you determine the number of pulses per Unit. This can be helpful to fix cases where the output wiring is reversed. Switch reverses the tasks of the PTO outputs that are assigned to the channel in modes Pulse + Direction or CW/CCW. The tables in the previous section give all possible combinations and output assignments, based on model. Those not available are disabled.Ī Channel comprises the inputs used to carry out the PTO function, and determines their function In this function you select a Vision model, which determines the available Channels and Modes. These are located on the Ladder toolbar, under the Utils menu. The following table shows all of the possible PTO mode combinations for this model. It is the user's responsibility to implement those safeguards required by his system, such as override and/or emergency stop mechanism. These functions are based on programming logic, and therefore do not have the safeguards generally provided by electro-mechanical controls. When an Output is not being used in a channel, it may be used as a general-purpose output (not high-speed) The following tables show the possible combinations, according to Vision model. The number of channels, the possible modes, and the outputs used to implement them vary from model to model.
Uses 2 high-speed outputs, one for clockwise, the other for counter-clockwiseĪ Channel comprises the outputs that are required to implement a Mode.
Uses 2 high-speed outputs, one for the pulse, and the second to control direction Note that the PTO control functions are open-loop, and do not rely on positional feedback. In this way you can, for example, build speed profiles that are appropriate for stepper motors. You can implement motor control by controlling the high-speed outputs of certain Vision controllers, and the EXF-RC15 Remote I/O, using PTO functions, controlling up to three independent axes. PTO Functions: Simple Motion Control PTO Functions: Simple Motion Control