FI002K0018v1100UK – THS/21 Instruction manual for installation, use and maintenance
3
INSTALLATION
ORIGINAL INSTRUCTIONS 103
3.8.6 Encoder
Variable speed conveyor belts must be fitted with an encoder. In this case the delay in activating
the ejection step is calculated dynamically as a function of the speed measured. It is also possible
to control the speed of the conveyor belt continuously so that it is always between BL and BM.
Programming menu
Remote
parameter
Description Setting
Configuration(adv) > K encoder
KE
Pulses per encoder revolution
(PPR)
1000 pulses/rotation
max
Configuration(adv) > Diameter
DI
Diameter
10 - 250 mm
The diameter DI refers to the diameter of the encoder wheel or to the diameter of the drive roller to
which it is fixed, increased by twice the thickness of the belt.
Given the maximum speed of the line (Vmax in m/min), the encoder must be set for a number of
pulses per rotation (PPR) as defined by this formula:
max
180
V
DI
PPR
Enter the I/O Status > Measures menu and verify, using a tachymeter, that the speed measured
(Speed) corresponds to the current one.
3.8.7 Synchronization photocell
The Synchronization photocell must be programmed as described below:
Programming menu
Remote
parameter
Description Setting
Configuration(adv) > Position pcell
PH
Position of the photocell relative
to the probe
IN / OUT
Configuration(adv) > Dist. Pcell-MD
PD
Distance between the Metal
Detector and the photocell
0 - 2000 mm
F
S
N
PD
F
S
N
PD
Photocell installed at the entrance
Photocell installed at the exit from the probe
N: conveyor belt; S: electronics unit; F: photocell; PD: distance photocell- electronics unit
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