System Descriptions - Filtec FT-50 Installation And Setup Manual

CROSS BEAM LABEL DETECTORS

System Descriptions

Industrial Dynamics Company Ltd. Document 3003-0395
P/N 22353 Kit, Label Inspection, Cross Beam
32769 Kit, X-Beam, Head Mounted
P/N
The Cross Beam Label Detector, P/N 22353, (Figure
Head-Mounted Cross Beam Label Detector, P/N 32769, (Figure
2),
are optional accessories for the FT-50 system. The Cross
Beam Label Detector is mounted on the Kit, Mounting Bracket,
Inspection Station, P/N 22344. The Head Mounted Cross Beam
Label Detector is mounted on blocks bolted to the FT-50's
bottom. Both Label Detectors are operated by the FT-50. Both
Label Detectors check bottles that are transparent to infrared
radiation for the presence of body labels.
Each Label Detector uses two infrared photoelectric transmitters
and two infrared receivers, placed diagonally at 45° to the flow
of bottles on the conveyor. Each transmitter transmits across the
Production Conveyor to its receiver. When
transparent unlabeled bottle passes between
receiver, the transmitter's light beam refracts away from the
receiver, except during
straight through the bottle's centerline. If the bottle has a body
label, no infrared light reaches the receiver during this
centerline interval. Each transmitter-receiver
a
to Photo Amplifier
have two Photo Amplifiers; they are located either in the
Inspection Station Electronic Enclosure (Label Detector P/N
22353) or in the FT-50 (Label Detector P/N 32769). In the Label
Detector P/N 22353, the outputs from both Photo Amplifiers are
combined (logically OR'ed) onto a single FT-50 Sensor input
line. In the Label Detector P/N 32769, each Photo Amplifier
output is connected to
FT-50 compares the logic state of the Sensor input line (Label
Detector P/N 22353) or the logic state of each of the two Sensor
input lines (Label Detector P/N 32769) to an internal table to
determine if the bottle should be accepted or rejected.
Power (+20 VDC) and a Ground reference are supplied by the
FT-50 Main Terminal Block
the FT-50 to the Inspection Station Junction Box.
Both Label Detectors require that a High Resolution Encoder
(Assembly P/N 24997, Installation
Production Conveyor, be connected
Resolution Encoder is installed per Installation Drawing I-00425.
The Encoder enables the FT-50 to precisely track when each
bottle's centerline is passing through the cross beam measure-
a
brief interval when the beam is passing
Both Label Detectors each
(P/N 19140).
a
separate FT-50 Sensor input line. The
through the cable connecting
TB1,
Kit P/N
the FT-50. The High
to
and the
1),
a
liquid-filled
a
transmitter and its
pair
is connected
24444), driven by the
I