Via input CCTRL-N2-SET = HIGH the cam drive can be detached from the cam or moved to the cam. With manual positioning tool change, service or drive, for example, can be brought to the cam position and other near-drive control functions can be implemented.
Description
For the positioning to be performed a comparison of setpoint and actual value is conducted,e.g. cam set position and motor actual position. Calculation of a velocity profile is based on this angle difference. The maximum values can be set for clockwise and anti-clockwise operation, and for ramping up and down.
The function described can be implemented with function blocks RFGPH2 and RFGPH3, e.g. separately for x-axis and y-axis of the motion profile. To actuate these profile generators additional logic function blocks may have to be integrated. Reference is made to the current system manual for the servo cam.
Note:
CCTRL-PHI-SET2 must always be used as the actual value or else there will be direct feedback in the closed-loop control circuit (never use CCTRL-PHI-ACT).
