Application Case - Delta Electronics

Application Case
- 1 -
Industrial Automation BU, Delta Electronics, Inc.
Case Application of Delta’s PLC in Liquid Filler with Measuring and Weighing Functions
Issued by Solution Center Date August, 2010 Pages 2
Applicable to
DVP-SX2 series PLC, DVP02LC-SL load cell module, DOP-B series human machine interface, VFD
series AC motor drive
Key word Liquid filling, I/O, high efficiency
The Trend
Liquid fillers with weighing function have already been widely applied in the liquid filling industry. Most liquid
filling equipment measures or weighs to decide the volume of the liquid and either way has its pros and cons. Some
liquid fillers measure and weigh to obtain more flexible and accurate filling. The measuring type liquid filler is
applicable in the packaging of less condensed, thiner and small-volume drink, e.g. bottled mineral water, tea, coffee,
diluted juice, flavored milk, etc. while the weighing type liquid filler fits the packaging of more condensed, thicker and
large-volume products, e.g. jam, honey, yoghurt, peanut butter, ice-cream, butter, chocolate paste and so on.
The traditional artificial filling method is no longer suitable for the packaging of the products listed above since the
filling of these products has to take the filling efficiency, control of volume and hygiene into consideration. Therefore,
filling liquid food by automation equipment has become an inevitable trend.
DVP-SX2 for Liquid Filler
The entire liquid filling process requires a high-speed and highly efficient host controller to trigger and activate
every step of action. Delta’s new DVP-SX2 series PLC is equipped with bountiful command, strong functions, built-in
with max. 2 axes of 100kHz high-speed pulse output and many 100kHz high-speed counters. Its new left-side
high-speed extension port is extendable to the new DVP series left-side analog modules, e.g. DVP04AD-SL,
DVP04DA-SL and DVP02LC-SL. The new positioning and special motion control commands answer different motion
control demands. DVP-SX2 series PLC is built-in with 4 channels of 12-bit analog input and 2 channels of analog
output and is the best fit for machines or equipment requiring small number of control points.
Liquid Filling Process with Measuring & Weighing
With solid experiences and advanced technology, Delta IABU offers eminently efficient and reliable solutions and services and is your
most trustworthy partner!
COPYRIGHT © 2008 DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED.

Bottle In Positioning
Application Case
- 2 -
Measuring
Industrial Automation BU, Delta Electronics, Inc.
Filling Bottle Out
Weighing
The weighing process in the filling adopts Delta’s DVP02LC-SL load cell left-side extension module to weigh the
filled bottle. The 12-bit analog output in DVP-SX2 PLC is responsible for the bottle in and out process and VFD series
AC motor drive in charge of transporting empty bottles on the conveyer belt. The entire filling process can also be
realized by pneumatic cylinder, pushing the empty bottle to a certain position for filling and to the next stop for the
next process. The operation of the pneumatic cylinder relies on the I/O control from the PLC. DVP-SX2 series PLC is
extendable to max. 494 points, which is capable enough of handling the I/O control on most of the liquid fillers.
With solid experiences and advanced technology, Delta IABU offers eminently efficient and reliable solutions and services and is your
most trustworthy partner!
COPYRIGHT © 2008 DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED.