The PLC control the fountain detail - the classic examples

PLC fountain control case A, clear system control requirements

system requirements with two buttons to control the nozzle work (A, B, C three groups Through the control of three groups of sprinkler pump motor to realize) Three groups of nozzle are arranged as shown in the figure below.

system control requirements specific as follows:

after press the start button, A set of spray nozzle to stop after 5 s, then B and C group of sprinkler spray at the same time, 5 s, group B nozzle to spray nozzle stop, group C 5 s to stop, and then A, B group of spray nozzle 7 s, group C nozzle in the 7 s stop within 2 s before, within 5 s after water spray, then A, B, C three groups of nozzle at the same time to stop 3 s, repeat the process in the future. Press the stop button, three groups of nozzle water stop at the same time. Below work for A, B, C three groups of nozzle sequence diagram.

fountain control input/output devices used by PLC controller and the corresponding terminal see table:

input device terminal function explain output devices corresponding to the corresponding PLC PLC SB1Q0 terminal function. KM1 coil Q0 0 start control. 0 SB2Q0 drive motor group A work. 1 stop control KM2 coil Q0. 1 KM3 Q0 coil drive motor group B work. 2 drive motor work group C

3, draw the fountain control circuit diagram

control diagram and four, write PLC control program

start STEP 7 Micro/WIN programming software, the ladder diagram program of meet the control requirements, write complete ladder diagram as shown in the figure below.

ladder diagram below

contrast control circuit to illustrate the working principle of ladder diagram:

1) Starting control

2) Stop control

The use and installation of plc manufacturers is compared with most other systems for managing the programmable control systems effectively and no doubt plc manufacturers have won the race so many times.
So, get ready to dazzle the world with a wide range of plc controller price plc manufacturers! Buy one today!! Visit Shenzhen Coolmay Technology Co., Ltd. at Coolmay PLC.
Shenzhen Coolmay Technology Co., Ltd. offer various lines of products in line with international standards along with professionals who can offer suitable solutions pertaining to the existing problem in programmable control systems plc manufacturers.
Being focused on the goals of plc manufacturers, our team, and most importantly, ourselves is critical to long-term success.