Renishaw RCU10, Installation And User Manual, Page: 38 / 202

System design 2-15
Figure 2.10 – Simple mode axis referencing sequence with non-laser encoder input
and Seek reference and Reset inputs to RCU10 tied to 0 V
Axis referencing with ‘Seek reference' and ‘Reset’ provided by the motion controller
In applications where it is not possible to locate the reference position outside the working
zone, the ‘Seek Reference’ line can be used to enable a reference cycle. In this mode of
operation, taking the ‘Seek Reference’ line low enables the reference mark input line into
the RCU10. At all other times (i.e with ‘Seek Reference’ high) the reference mark request
is ignored.
Figures 2.11 and 2.12 show the axis referencing sequence for laser and non-laser
encoders respectively with when both ‘Seek Reference’ and ‘Reset’ signals are provided
by the machine controller.
Note that following a power-up of the compensation system, it is recommended that a
‘Reset’ be applied as shown in Figures 2.11 and 2.12.