Graco 234129, Инструкция по эксплуатации

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PrecisionFlo LT Module Overview
309738L 11
PrecisionFlo LT Module Overview
The block diagram in F
IG
. 1 shows an example of the
PrecisionFlo LT module, robot I/O signals, and wire
numbers.
The fluid metering assembly contains the components
that control and monitor fluid dispensing. It can be
attached to an automation arm or mounted on a pedes-
tal.
The control assembly sends continuous voltage signals
to the PrecisionFlo LT fluid assembly regulator to control
fluid pressure and the opening and closing of the dis-
pense valve.
The control assembly receives input from the automa-
tion controller. The control assembly uses these inputs
to determine the signals it should send to the fluid
metering assembly.
The PrecisionFlo LT fluid regulator is electrically con-
trolled by the PrecisionFlo LT module, and consistent
material flow is assured by a closed-loop pressure or
closed-loop flow control design. The module responds
to automation-supplied signals to provide an accurate
and consistent output flow based on a comparison of
actual to desired flow rates. The pneumatic regulator
uses air pressure to control fluid pressure and to pro-
vide fast response to electronic commands and ensure
a precisely controlled, continuous flow of material.
F
IG
. 1
"
"
Automation Controller
Job Complete (3310)
Dispense (3290)
Flow Command (3150)
Fault Present (2710)
Dispenser Ready (2680)
Min Volume Dispensed (2770)
In Cycle (2740)
Flow Rate (3210)
Gun On
V/P
Flow Meter
Outlet Pressure
PrecisionFlo LT
Fluid Metering Assembly
PrecisionFlo LT
Control Assembly
D