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Modbus Communication Guide between INVT HMI and GD35-1R5G-4H1 VFD
When designer wants to directly input a specific parameter without need to change the PLC program structure, and this parameter is displayed on VFD, we will set up Modbus communication between HMI display screen, specifically using INVT’s VT designer software, and GD35-1R5G-4H1 VFD. Step 1: Choose the Modbus communication mode for VFD by configuring the ... Read moreQ&A
Why doesn’t motor start when I press the RUN button on VFD?
There are two scenarios: both VFD and motor are not running, and VFD is running but motor is not running. In the first case: you need to make sure that VFD has power supplied to it. When VFD is in the running state, the RUN status indicator light will illuminate. If you press RUN button ... Read moreQ&A
Is it possible to use a VFD to replace a Servo Drive for controlling a Servo motor?
The development of modern industry has led to the increasing use of servos in various machinery systems. In many cases, servo drives may fail while the servo motors are still functioning properly, and it may not be possible to purchase a replacement drive (due to discontinued product lines or long delivery times). Replacing the entire ... Read moreQ&A
Guide on Creating and Modifying Passwords on the HMI Interface
In a factory system, some systems require settings within a single interface page, while others may need multiple interface pages. The more complex the system, the greater the number of interfaces, and especially within those interfaces, there may be a lot of data to display and configure. Additionally, not all parameters can always be made ... Read moreQ&A
Why does the circuit breaker trip when power is supplied?
The circuit breaker may trip when power is supplied due to: The circuit breaker has a current rating that is too low: Short circuit between phases of the power supply or a ground fault in the power supply. The rectifier bridge is damaged, causing a short circuit between phases. Power supply cables are in contact. ... Read moreQ&A
Guide on how to write a Macro program
MACRO can be understood as a support program that includes control command structures and can function like a simple computer program when activated. The advantage of Macros is that they can easily represent the operating methods of an object, such as changing data, operating conditions, and sequences of operations using familiar programming commands for any ... Read moreQ&A
What are the benefits of using a VFD in motor control?
A VFD, often thought of as an automation device, functions like a versatile tool for controlling motor speed smoothly and efficiently. It is considered the most advanced non-contact modern motor speed control device in the world, equipped with outstanding features that satisfy all users. A VFD, or semiconductor drive, is a means of connecting the ... Read moreQ&A
Comparing VFDs and Soft Starters: Features and Applications
Electric motors often require a substantial amount of energy to start and quickly reach their maximum speed. Both soft starters and VFDs can be used to reduce inrush current and limit torque to protect mechanical equipment, prevent grid voltage drops, and extend the lifespan of motors when dealing with high-power motors or continuous start-stop applications. ... Read moreQ&A
Guide on Establishing Communication Between HMI-PLC and PLC-INVT VFD
GUIDE FOR ESTABLISHING COMMUNICATION BETWEEN HMI – PLC AND BETWEEN PLC – INVT VFD Note: Use Port 0 of the PLC for communication with the HMI and Port 1 of the PLC for communication with the INVT VFD using Modbus RTU protocol. Step 1: Create a Simple PLC Program to Control the VFD Start/Stop and ... Read moreQ&A
What is PLC Programming?
Users can program PLCs to execute a series of events. These events are triggered by stimulating agents (inputs) acting on the PLC or through time-based or counted events. PLCs are used to replace relay circuits in practice. PLCs operate by scanning the states of inputs and outputs. When there is a change in the input, ... Read moreQ&A
