FI002K0018v1530hUK – THS/21 Instruction manual for installation, use and maintenance
3
INSTALLAZIONE
ORIGINAL
INSTRUCTION 131
3.9.9.6 Automatic ejection for high-speed applications (EM=FS)
EM
Typical product
Throughput
Ejector Type
Ejection
Notes
FS
Packed product, light
Very high
throughput
Air jet
Contaminated product
automatically ejected
Synchronization
photocell required at
the exit from the Probe
Single-line, poorly spaced
product
The use of this ejection mode is indicated with products close to each other and passing through at high speed, so as the
ejection mode S does not grant the correct ejection of consecutive packs.
Operation with ejection activation for the automatic set-aside of the material contained in an area
that include the contamination; the area is accurately rejected through the synchronization photocell.
In CEIA Integrated Systems fitted with an ejector, this mode determines the automatic ejection and
removal of the contaminated material in the reject bin.
Programming menu
Remote
parameter
Description
Setting
Ejection
> Ejection mode
EM
Automatic removal of contaminated material
with synchronization on the removing area
FS
Ejection
> Ej. distance
ED
Distance of ejector from the centre of the Probe
0 - 6000 mm
Ejection
> Pack length
PLEN
Nominal length of pack
20 - 250 mm
Ejection
> Eject.sync.start
ES
Synchronizing zone for the start of ejection
0 - 250 mm
Ejection
> Eject.sync.end
EE
Synchronizing zone for the end of ejection
0 - 250 mm
Generic example
S: Metal Detector Probe
N: Conveyor belt
A: Air jet ejector
F1: Synchronization
photocell
F2: Ejection check sensor
PL: Pack length
DW: Detector width
ED: Ejection distance
PD: Photocell distance
ECPD: Photocell distance
In high speed applications, the ejection activation time is not negligible with respect to the ejection delay, so it is possible
to anticipate the activation and the deactivation through the parameters
ERT
and
ERF
respectively.
