Wulftec / M.J. Maillis Group
Page 24 of 36
Version 1.7.1 /November 2014
Setting Wrap Parameters (cont’d)
Photoeye Response Delay Time
Since most pallet loads are square or rectangular, as opposed to round, there must be a delay time
setting in order to remain "
ON
" as the arm turns around the load and reflects the
diffuse photoeye
's
signal away from its own receiver. The delay is set in the PLC program and can be changed via the
touch screen.
Automatic Height Sensing
All Wulftec automatic machines are equipped with a
photoeye sensor
, for load height sensing. This
allows for variations in load height, while maintaining the predetermined "overwrap" setting. All
machines are equipped with manual override (limit switches).
NOTE:
When using a 30” carriage with a 20” film on the machine, the
autoheight photoeye will not work on small load higher than 20” and smaller
than 33”.
NOTE:
The upper limit stop controls the overwrap of the pallet when the
photoeye mounted on the carriage is not in use.
Setting the Limit Stop
Lower:
Loosen the lower limit stop.
Slide stop block into desired position.
Tighten securely.
Upper:
Loosen the upper stop limit.
Slide the stop block into desired position.
Tighten securely.
NOTE:
The bottom limit switch block should be adjusted according to the
downward speed of the carriage so that it does not over travel. At each end of the
limit stop adjustment rail are over travel security stops that are fixed in position.
Under no circumstances are these to be removed, as serious machine damage
and/or personal injury may result
.
