I570-E2-01) if you are unfamiliar with the operation of the front panel keypad. Please refer to section 2-5 of the MX2 User’s Manual (Cat. Therefore, no other parameters need to be changed from the defaults, as they already match these settings. Please be sure to cycle the power to the inverter after changing these parameters in order for the new settings to take effect. The sample CX-Programmer project uses Modbus settings of 9,600bps (baud rate), 8 data bits, 1 stop bit and no parity, and also assumes that the MX2 has a node number (network address) of 1. Connect the MX2 terminal labeled 'SP' to the CP1W-CIF11 terminal labeled 'RDA+'.īy default, the MX2 is set to accept speed reference and run command signals from the built-in front panel keypad and external digital input signals. In order for the MX2 to be controlled entirely over Modbus, the following parameters (A0001 and A0002 in bold, below) must be changed. Connect the MX2 terminal labeled 'SN' to the CP1W-CIF11 terminal labeled 'RDA-'.Ĥ. Set the DIP switches on the rear of the CP1W-CIF11 unit according to the diagram below.ģ. This switch is labeled as MD SW1 and its location is shown below.Ģ. Set the DIP switch to ON (to the right) for the MX2 termination resistor. Use the following steps to connect the CP1W-CIF11 to the MX2 inverter.ġ.

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.

Mx2 cp1 e omron modbus