TG - MX2-V2 Series - Analog Speed Reference Input

Modified on Tue, 4 Feb at 3:52 PM

Purpose

This guide provides a step-by-step procedure for connecting a variable resistor (potentiometer) to control the speed reference of an MX2-V2 inverter.

Explanation

Process for connecting a potentiometer to adjust the speed reference of an MX2-V2 inverter.

Supported devices

•3G3MX2-___-V2

Requirements

•3G3MX2-V2 inverter (or any inverter from the MX2 family)

•Potentiometer (recommended range: 1 to 2 K Ohms)

Procedure

Wiring the Potentiometer

1. To safely install the potentiometer, ensure that the inverter is powered off before making any connections to the control terminals. The potentiometer requires three connections:

•[FS] Terminal: Provides a built-in 10V reference voltage.

•[SC] Terminal: Acts as the analog ground.

•[FV] Terminal: Receives the signal input from the potentiometer.

Connect the three pins of the potentiometer to these terminals as follows:

The recommended potentiometer value is between 1 to 2 K Ohms.

2. Configuring the Inverter Parameters

Once the potentiometer is properly wired, power on the inverter. You’ll need to configure the inverter to accept the analog input from the potentiometer as the speed reference. To do this:

1.Press the Enter key on the inverter to navigate through the parameters.

2.Locate Group A: Standard Function Parameters.

3.Find Parameter A001. By default, this parameter is set to 02 (digital keypad operation).

4.Change the value of A001 to 01, which sets the inverter to use the control circuit terminal block (analog input) as the speed reference.