Kewei PLC Elevator Control Solution Integration
One. MDT-2000 elevator dedicated PLC elevator control program:
two. EC series PLC elevator control program:
three. EP series PLC elevator control program:
I. MDT-2000 elevator-specific PLC elevator control program
1 system block diagram:
The system consists of a serial elevator dedicated PLC, input and output interfaces, and drag sections (including frequency converters, rotary encoders, PG speed cards, brake units, braking resistors, motors, etc.). As shown in Figure 1:
Figure 1 Block diagram of elevator-specific PLC system
2. Features:
1 Set PLC reliability, openness and CANBUS communication function of elevator controller.
2 programming port protocol, ladder language compatible Mitsubishi PLC.
3 Provide standard version of elevator control software, users can carry out secondary development on this basis to protect their own technical secrets.
4 The price/performance ratio is relatively high, and the price is much more favorable than the computer controller.
3. Applicable conditions:
It is mainly used for high-floor or complex passenger elevator control. The elevator-dedicated PLC control has high precision, taking into account all possible situations, safety, reliability, and strong comfort, and can well complete the control requirements.
two. EC series PLC elevator control program:
1 system block diagram:
The system consists of EC series PLC, input and output interfaces and dragging parts (including frequency converters, rotary encoders, PG speed cards, braking units, braking resistors, motors, etc.). as shown in picture 2:
Figure 2 Block diagram of EC series PLC system
2. Features:
1 PLC has good performance, high reliability and easy maintenance.
2 It has CANBUS communication function, high communication speed and simple wiring.
3 programming port protocol, ladder language compatible Mitsubishi PLC.
4 Provide standard version of elevator control software, users can carry out secondary development on this basis to protect their own technical secrets.
3. Applicable conditions:
Mainly used for low-floor passenger elevator control and teach complex freight elevator control, that is, the characteristics of PLC high performance and stability, but also with a powerful CANBUS communication function, and with a character screen, troubleshooting is very convenient.
three. EP series PLC elevator control program:
1 system block diagram:
The system consists of the EP series PLC, input and output interfaces, and drag sections (including inverters, rotary encoders, PG speed cards, braking units, braking resistors, motors, etc.). As shown in Figure 3:
Fig. 3 Block diagram of EP series PLC system
2. Features:
1 Manufacturing, inspection follow the standard process, PLC's performance is good, high reliability, easy to maintain.
2 programming port protocol, ladder language compatible Mitsubishi PLC.
3 Provide standard version of elevator control software, users can carry out secondary development on this basis to protect their own technical secrets.
4 cost-effective.
5 The wiring is point-to-point direct connection.
3. Applicable conditions:
Mainly used for simple freight elevator control, can work long hours in harsh environments, high reliability, point-to-point direct wiring, the price is much more affordable than the imported PLC, can save costs.