The communication wiring should connect the ‘SN’ and ‘SP’ terminals of the MX2 and the screw terminals of the CP1W-CIF11 RS422/485 communications option module, fitted in the right-hand slot of the CP1L PLC. The MX2 inverter will be controlled entirely by MODBUS commands over the RS485 serial communication link (to the CP1L PLC), so no I/O wiring is required. ![]() Typically, an HMI or other external user input device is needed for real application, but this tutorial does not cover such detail and only includes simplified programming for trial operation. Up to 31 inverters may be connected to a Modbus "master" (the CP1 in this example) using an unshielded, twisted-pair cable.Ī basic CX-Programmer project is provided and detailed for this tutorial. The PLC uses the CP1W-CIF11 serial option module to communicate with the MX2 inverter using the Modbus protocol for functions such as start/stop, speed control, status monitoring and error reset. The example provided below uses the CP1L-M30 PLC with a CP1W-CIF11 installed in the rightmost option board position (slot 2). This document contains the following sections: ![]() To learn more about a CP1 PLC and MX2 inverter drive control solution on a real pack stacking machine, click the link below. This example is intended for a new CP1/MX2 user and illustrates easy programming and configuration for simple inverter motion control of a new system. This document describes the procedure to configure and connect a CP1L-M30 PLC to an MX2 inverter drive for simple motion control.
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