Use for Rotary Motion

Using the module

For , the user will indicate the number of pulses in a .

The cams can be declared for all the values of a cycle.
The activity zone of an output can be programmed between two cycles.

the position reading on the machine origin (cam reference) can be done with a value other than "0":

Each time the machine is started up,
On each machine cycle for drives with slip,
With an absolute encoder, the module can correct the offset on the machine 0. It can also apply an angle of deviation in relation to this same machine 0.

Module functions allow the following to be read:

The number of counter pulses in a cycle,

The axis slip (value of the angle before recalibration),

The angle that parts arrive at, or their dimensions.

The parts counter function can be programmed to indicate the number of presses performed.

Anticipation

For high-speed machines, it is possible to correct the following very precisely: the actuator ascent time and the internal module processing time, if required.

A fine resolution and a large number of pulses per cycle, ensure precise anticipation. For example: if the user wishes to anticipate the command of an actuator by 1ms, the encoder must be able to provide more than 5 pulses in that time.

NOTE: speed variation must be negligible in a period corresponding to the largest anticipation value requested.

Rotating movement

This is a typical movement for mechanical presses and punching machines. The axis describes a complete cycle to carry out all the operations on a part. The direction of rotation is constant.

The "reading format" is type 1. The arrival of parts is synchronized by the machine (Machine Synchro).

Recalibration

This is the module function which is used to adjust the axis in relation to the machine zero or to synchronize the axis in relation to the arrival of a part.

Recalibration forces the position reading to a value which is predefined by the "recalibration value" parameter (included in the pulse field of the cycle).

The module allows recalibration to be carried out systematically for each cycle or for only one cycle. This recalibration is always conditioned to the IREC input.

Capture

A module function that is used to sample the position value of the axis on detection of a precise event (input Icapt0 and/or Icapt1). The capture has no impact on the values of the axis nor on the cam processor.

The implementation of this function allows the application to manage the process better, for example: in monitoring the number of pulses sent by the encoder, the size of the parts, the axis slip, the angle of arrival of the parts.

Anticipation

Cam processor function that is used to compensate for the delay caused by the machine’s actuators.

The anticipation value is applied to all changes of track status. It is specified by the "anticipation factor" defined in the recipe parameters (value between 0 and 32 767 x 50 micro seconds).