West Control Solutions Pro-16 - Manual (Page 72)

Special
functions
9499-040-93811 / 59537-1 Page 72 of 88 Pro-16
9.2 Boost function
The boost function causes temporary increase of the set-point, e.g. for removing "frozen"
material from clogged die nozzles with hot-runner control.
If configured (
r ConF/ LOGI/ booS), the boost function can be started via digital
input di1/2/3, with the function key on the instrument front panel or via the interface
(OPTION).
The set-point increase around boost set-point PArA /SEtP/SP.bo remains effective
as long as digital signal (di1/2 3, function key, interface) remains set. The maximum
permissible cycle time (boost time-out) is determined by parameter
PArA
/ SEtP/t.bo.
Unless reset after elapse of boost time I t.bo, the boost function is finished by the
controller.
g
The boost function also works with:
• start-up circuit:
PArA /SEtP/ SP.bo is added to W after elapse of start-up
holding time PArA /SEtP/ t.St.
• Gradient function: set-point W is increased by PArA /SEtP/ SP.bo with gradient PArA
/SEtP/ r.SP.