Bimba PCS Rod Lock User Manual
Page 7
Employing a Rod Lock with a PCS System
in a Linear Motion Control System
Programming Requirements for Using the Rod Lock with a PCS Control
The PCS control has a digital (@Position) signal to indicate when the cylinder its at its
commanded position (actually within +/- the deadband setting of its commanded position). If the
rod is in motion and is about to overshoot the target, one could inadvertently engage the Rod
Clamp, causing it to act as a dynamic brake. It is therefore necessary to monitor the @Position
signal before engaging the Rod Lock to be certain that the payload is within the deadband zone
AND th
t
i
t bl
O
thi h
d th 3
l
h
ld b d
i
d ll
AND the system is stable. Once this has occurred the 3-way valve should be de-energized allow
the Rod Lock to engage. Then the two 4-way valves should be de-energized to divert full-line
pressure to both sides of the PFC piston.