Description
PFEA113-65 3BSE028144R0065 Proportional Governor
PFEA113-65 3BSE028144R0065 system PLC communication adapter, the main role of the module is in the computer – PLC communication system as a sub-station to accept the computer sent to the PLC’s information or in the multi-PLC constitutes an n:n network as a network adapter, generally only as a prescribed protocols to receive the letter unit to use. In this paper, the authors analyze its structure on the basis of its use as a communication master to complete the frequency converter governor control signals sent.
The computer connection unit of the PFEA113-65 3BSE028144R0065 series proportional governor, which complies with the RS-422/RS-485 communication specification, is used to realize the connection of the computer to the network with multiple frequency converter governors. Through this unit can realize the operation control (such as start, stop, running frequency setting), parameter setting and status monitoring of frequency converter governor on the network, which is the network interface of frequency converter.
PFEA113-65 3BSE028144R0065 The power of the inverter is 7.5kw, 1.5kw and 15kw respectively, and the inverter adopts the analog control mode. Through the inverter on the motor pump to achieve soft start function. Figure 2 shows the wiring diagram of pid regulator and inverter. Inverter according to pid regulator output signal, timely adjustment of the output frequency, change the motor and pump speed, adjust the system water supply, so that the pressure in the water supply pipeline network stabilized at the set pressure value.