Ceia THS/GMS21 - Reversing Belts (EM=R); Automatic Ejection with Alarm Synchronization (EM=F)

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FI002K0018v1100UK – THS/21 Instruction manual for installation, use and maintenance
INSTALLATION
114 ORIGINAL INSTRUCTIONS
3.9.3 Reversing belts (EM=R)
S: Metal Detector probe
N: Conveyor belt
PL: Pack length
DW: Detector width
Waveform Description
Metal alarm -
Conveyor belt Movement of the belt
ED = Ejection distance; BS = Transit speed set on BS parameter or, in presence of an encoder (KE>0), measured;
AT = Minimum activation time of the alarm relay; a = time linked to the acceleration and deceleration of the belt
3.9.4 Automatic ejection with alarm synchronization (EM=F)
S: Metal Detector probe
N: Conveyor belt
C: Contaminated pack
PL: Pack length
DW: Detector width
ED: Ejection distance
Waveform Description
Metal alarm Metal alarm
Alarm relay (ALARM) External alarm signalling
Ejection relay (EJECT)
and ejector activation
Ejection
Yellow lamp Alarm beacon operation
ED = Ejection distance; BS = Transit speed set on BS parameter or, in presence of an encoder (KE>0), measured;
ET = Ejection relay activation time; AT = Minimum activation time of the alarm relay
t1 = Alarm time, generally corresponding to the transit of the metal mass through the probe
In Conveyor Control Systems, or with encoder installed, the ejection cycle occurs only when the belt is moving.