Cut Sheet

Volume 8—Sensing Solutions CA08100010E—November 2012 www.eaton.com V8-T6-15
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6.2
Conveyor Sensor Systems
200 Series Zero Pressure Accumulation
Product Overview
Fast, Low Cost Installation
and Retrofit
The unique 200 Series
reduces installation costs by
eliminating measuring, wire
stripping and attachment of
custom connectors. The main
buss cable has connectors
pre-installed at points to
match your conveyor zone
length. Zone length can be
from 18 to 60 inches in 6 inch
increments. Custom wiring
harnesses are supplied for an
exact fit-between the main
buss cable, the solenoid, and
the sensor to eliminate
unsightly cable loops that
might otherwise be snagged
and damaged.
High Reliability
200 Series sensors operate in
the polarized reflex sensing
mode. Polarized sensors
eliminate detection errors
caused by shiny targets. The
sensor’s 10 ft maximum
range provides high sensing
reliability when used at
common conveyor widths.
Choose a Sensor to Meet
Your Specific Needs
To provide an ideal solution
for a wide variety of zero-
pressure accumulation needs,
200 Series sensors are
available in two different
embedded logic modes:
●
The Basic Logic Series
offers high-throughput
smart Zero Pressure
Accumulation control. This
logic results in singulation
and Zero Pressure
Accumulation. Each sensor
checks the status of the
downstream zone and
each zone always runs
except when both the
current and downstream
zones are full. Models are
available in either Zone Full
Delay Timer or Zone Empty
Timer configurations
●
The Progressive Logic
Series offers even higher
throughput than the Basic
Logic. This logic does not
singulate product, but does
result in Zero Pressure
Accumulation. Each zone
always runs until all of the
zones downstream are full,
allowing maximum
efficiency. Models are
available in either Zone Full
Delay Timer or Zone Empty
Timer configurations
Sensor
The 200 Series sensor has
been specially designed with
upstream communication
abilities and internal logic to
implement true zero pressure
accumulation control.
When combined with the
components below, a
complete ZPA conveyor
control system can be literally
snapped into place on your
conveyor. Two versions are
available depending upon the
control you require: Basic
Logic and Progressive Logic
(described on this page).
Sensor with Additional
Time Delay
These 200 Series sensors are
the same as standard units in
all respects, with the
exception of additional time
delay circuitry designed to
afford you enhanced zero
pressure accumulation
control. Versions with a
“Gap Timer” offer you an
adjustable delay to insert
additional gaps between
adjacent products as they
move down the conveyor
(beyond those gaps normally
present due to the operation
of the built-in true zero
pressure accumulation
logic). Versions with a
“Compression Timer” offer
you an adjustable delay to
compress packages together
during the accumulation
process.
Sensor Harness
The sensor harness connects
the sensor to the buss
harness and solenoid
1
. This
is the only custom part of the
system—the length is
optimized for an exact fit on
your conveyor to eliminate
cable loops that could
otherwise be damaged.
Buss Harness
The buss harness distributes
power, slug release signals
and provides communications
links. Made from flat ribbon
cable, it is available in 10, 50
and 100 ft lengths and is
connectorized at intervals to
match your zone length (18 to
60 inches in 6 inch
increments).
It’s So Easy to Get Started, All
That’s Needed Is:
●
Your conveyor zone
length(s)
●
Preferred ZPA algorithm
●
Sensor harness cable
lengths:
●
Distance from sensor to
power buss harness
●
Distance from sensor to
solenoid
●
Solenoid valve
manufacturer and model
number
Note
1
A customer-supplied solenoid/valve is
required at each zone to control the
conveyor pneumatics. Eaton
recommends a solenoid below 1.8
Watts.