3
FI002K0018v1530hUK – THS/21 Instruction manual for installation, use and maintenance
INSTALLAZIONE
116 ORIGINAL
INSTRUCTION
3.7.4.1 Sensor
positioning
Sensor configuration and positioning depend on the application.
This section provides some examples which are intended as a guide only.
Example of a system with piston or air blow ejector
Example of a system with a deviator
N
: Conveyor belt;
S
: Detection Probe;
CW
: Checkweigher;
E
: Ejection system;
B
: Reject bin;
#
Input
Description
Notes
AP
LOW PRESSURE
Check for compressed
air pressure
Indicates the low pressure status in the ejector pneumatic circuit.
CE
EJ. CONFIRMATION
Check for ejection
confirmation
With piston or air blow ejector, sensor positioned at the reject bin entry to
confirm the correct ejection of a contaminated product.
With retracting belt, deviator or valve ejector, limit switch sensor for
confirmation of correct activation of the ejector.
ECK
EJECTION CHECK
Check for complete
ejection of product
Sensor used to verify that during the ejection cycle any other prodyuct is
passing over the ejection area.
EPC
EJ. POSITION CHECK
Check for the correct
ejector position
With retracting belt or valve ejector, sensor used to confirm that the ejector is
correctly back to the starting position, after an ejection. Used together with
EJ.CONFIRMATION sensor (CE) also to constantly check the ejector
position.
ENC
ENCODER
Encoder
Incremental encoder for transport speed reading.
LA
BIN ABSENT
Check for bin
presence
Sensor used to check the reject bin presence, in applications where its
absence can cause problems to the production or to the operators safety.
LF
BIN FULL
Check for bin full
Indicates to the operator the need to empty the reject bin so as to avoid, that
contaminated products could not be correctly ejected.
PH
PHOTOCELL
Synchronization
photocell
Usable for the ejection timing and for the products count.
