Manual

A. Technical appendix
A−8
Festo P.BE−SFC−DC−PB−S7−EN en 0604NH
Overview of parameters involved (see also appendix B.1.2)
Parameters involved Description PNU
Offset axis zero point 1010
Reference method (permitted: 7, 11, −18, −17) 1011
Reference travel speed 1012
Reference travel required 1014
Reference travel maximum torque 1015
Start SFC_DC_CONTROL  Start_Positioning_Task = positive edge
Reply message SFC_DC_CONTROL  Ack_Start = positive edge: Quit Start
SFC_DC_CONTROL  Drive_is_referenced = Drive is referenced
Prerequisites Device control via PLC/field bus (Drive_Control_FCT_HMI = 0)
Controller in status Drive enabled" (Drive_enabled = 1)
No command for jogging
Tab.A/4: Parameters involved in reference travel
Reference travel methods
hex dec. Description
07h 7 Search for reference switch in positive direction. The reference position lies
at the first index pulse in the negative direction; the reference switch sup
plies a 0−signal.
0Bh 11 Search for reference switch in negative direction. The reference position
lies at the first index pulse in the positive direction; the reference switch
supplies a 0−signal.
EFh −17 Search for negative stop. The point found is the reference position. As the
axis must not stand still at the stop, the offset axis zero point must be š 0.
EEh −18 Search for positive stop. The point found is the reference position. As the
axis must not stand still at the stop, the offset axis zero point must be š 0.
Tab.A/5: Overview of reference travel methods