Log In | Enterprise CRM | Corporate Email
The Application of NA200 in Vacuum Packaging Machines
Release date:
2020-04-07
The vacuum packaging machine is a type of mechanical equipment widely used in the packaging industry. Previously, most existing machines relied on relay-based control systems, which suffered from high failure rates, poor stability, and limited functionality. However, thanks to the NA200 series small PLCs—known for their exceptional reliability, cost-effectiveness, and ability to implement logic entirely through hardware—the company developed a dedicated PLC control system specifically for vacuum packaging machines. This innovative solution integrates multiple functions into one compact unit, significantly enhancing both performance and economic benefits.
Vacuum packaging machines are widely used mechanical equipment in the packaging industry. Previously, most of these machines relied on relay-based control systems, which suffered from high failure rates, poor stability, and limited functionality. However, thanks to the NA200 series of compact PLCs—known for their exceptional reliability, cost-effectiveness, and ability to implement logic entirely through hardware—the company developed a dedicated PLC control system specifically tailored for vacuum packaging machines. This innovative solution not only integrates multiple advanced features into a single unit but also delivers significant economic benefits, enhancing both product performance and reliability.
(Vacuum packaging machine images sourced from the internet)
Process requirements
The vacuum packaging machine features four functional settings: sealing, manual vacuum, automatic vacuum, and inflation. These four functions are switched using a rotary selector switch, which must instantly halt any ongoing process when changing modes. Additionally, the internal registers and output signals need to be reset before the new function can begin. The device also includes a foot pedal switch that controls the input signal for initiating the process.
The process description is as follows:
1. Automatic vacuum
2. Inflation Process
Inflation includes 2 options—Inflation 1 and Inflation 2—selected using a gear switch.
The inflation process consists of: vacuuming → inflating (with the timer set to control the inflation time) → sealing.
The inflation process consists of the following steps: vacuum → inflation (controlled by Timer 1, which sets the inflation duration) → vacuum → inflation (controlled by Timer 2, which sets the inflation duration) → sealing.
System Configuration
The NA200 series PLC serves as the control core of the vacuum packaging machine system, managing peripheral devices such as the vacuum pump, inflation pump, heating elements, and position detection switches.
The NA200 series PLC is configured as follows:
The NA200 series PLC is configured as follows:
| Input |
Definition |
Output |
Definition |
| %I0001 |
Nozzle front |
%Q0001 |
Vacuum pump operation |
| %I0002 |
After the nozzle |
%Q0002 |
Press bag, seal, and press down with the knife |
| %I0003 |
Manual vacuum |
%Q0003 |
Heated coagulation knife with downward pressure |
| %I0004 |
Automatic vacuum |
%Q0004 |
Suction nozzle movement |
| %I0005 |
Sealing the mouth |
%Q0005 |
Inflatable check valve operation |
| %I0006 |
Inflatable 1 |
%Q0006 |
Electric heating wire |
| %I0007 |
Inflatable 2 |
%Q0007 |
|
| %I0008 |
Foot pedal switch |
%Q0008 |
|
The electrical control system of the vacuum packaging machine is built around the NA200 series PLC, offering significant advantages over the previous PLC-based system. Most notably, it replaces multiple time relays with a simple human-machine interface, reducing the number of PLC I/O points required and eliminating the frequent failures associated with time relays. This improvement not only enhances the equipment's reliability but also delivers substantial economic benefits.
Applications in vacuum packaging machines demonstrate that the NA200 series PLC is a cost-effective, high-performance small programmable controller, particularly well-suited for the electrical control systems of compact machinery—mainly due to the following key advantages:
——Low prices help keep equipment costs well under control.
——Featuring simple human-machine functionality.
——Programming is simple, making it easy for electrical engineers to get started.
——Excellent online programming and monitoring capabilities, making it highly practical for on-site debugging.
Keywords:
The previous one
Related Products
Service hotline:+8618905163737
Company Headquarters: No. 15, Building B, Zone B, Phase I, Headquarters Economic Park, 69 Fengzhan Road, Yuhuatai District, Nanjing, Jiangsu, P.R. China
Production Center: No. 219 Qinghuiting West Road, Jiangning Economic Development Zone, Nanjing City, Jiangsu Province
Aoto Technology Co., Ltd.
