E6581315

Host computer

 

 

 

 

 

 

Block 2

 

 

 

 

Block 1

 

 

 

 

 

 

 

Inverter No.20 Inverter No.21 Inverter No.29

 

Inverter No. 10 Inverter No.11

Inverter No.19

 

 

VF-AS1

VF-AS1

VF-AS1

VF-AS1

VF-AS1

VF-AS1

*1

*1: Error signal I/F

In broadcast communication, only the representative inverter in each block returns data to the host computer. However, you can make the representative inverter in each block report the occurrence of a problem in the block. To do so, follow these steps.

Set the timer function so that, if a time-out occurs, the inverter will trip (Ex.: = (sec)), set the output terminal selection parameter (FL) so that trip information will be output through the output terminal (=), and set the input terminal selection parameter (F) of the representative in- verter in each block to “external input trip (emergency stop)” (=). Then, connect the input terminal (F, CC) of the representative inverter to the FL terminal (FLA, FLC) of each of the other in- verters in the same block (FLA-F, FLC-CC). In this setting, if an inverter trips, the representative in- verter will come to an emergency stop, and as a result it will report the occurrence of a problem in its block to the computer. (If the representative inverter returns a lowercase letter in response to a command from the computer, the computer will judge that a problem has arisen in an inverter.) To examine details on the problem that has arisen, the host computer accesses each individual inverter, specifying its communication number. To make the computer issue a command to all inverters in block 1 or block 2 shown in the figure above, specify “1*” or “2*”, respectively. In this system, inverter No. 10 will return data to the computer if a problem arises in block 1, or inverter No. 20 if a problem arises in block 2. For overall broadcast communication, specify “**”, in which case the inverter with the communication number “00” will return data to the computer.

In this example, if you want the computer to maintain communication without bringing an represen- tative inverter to an emergency stop, set its input terminal selection parameter to “disabled (=) but not to “external input trip (emergency stop).” This setting causes the host computer to check the setting of the input terminal information parameter (Communication No.=DF06, bit 0) of the representative inverter, and as a result enables the computer to detect the occurrence of a problem.

CAUTION:

Data from inverters will be deformed if inverters of the same number are connected on the network. Never assign same single numbers to inverters on the network.

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Toshiba VF-AS1 Series, RS485 instruction manual
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RS485, VF-AS1 Series specifications

The Toshiba VF-AS1 Series represents a significant advancement in the realm of variable frequency drives (VFDs), designed for various industrial applications that demand precision, efficiency, and reliability. With support for RS485 communication, the VF-AS1 Series fosters seamless integration into complex automation systems, making it the perfect choice for modern manufacturing environments.

One of the standout features of the Toshiba VF-AS1 Series is its versatile communication capabilities. The built-in RS485 port allows for easy connectivity with a range of devices, including PLCs (Programmable Logic Controllers) and HMIs (Human-Machine Interfaces). This ensures real-time monitoring and control of motor functions, enhancing operational efficiency and data analysis.

The VF-AS1 Series is engineered with advanced control technologies that provide exceptional motor performance. It incorporates vector control algorithms that optimize torque and speed regulation for both standard and permanent magnet motors. This results in precise motor control across a wide range of speeds and load conditions, ensuring optimum performance and energy savings.

Another noteworthy characteristic is its user-friendly interface. The VF-AS1 features a clear LCD display that allows for easy navigation and configuration. This intuitive design minimizes the learning curve for operators and technicians, facilitating quick setup and adjustments. Additionally, the series supports various programming options, catering to both novice users and experienced professionals.

Energy efficiency is a key priority in the design of the VF-AS1 Series. The drives are equipped with energy-saving features that help reduce overall power consumption and operational costs. With built-in sleep modes and dynamic energy feedback, these drives optimize energy usage based on demand, making them suitable for both constant and variable load applications.

In terms of safety and protection, the VF-AS1 Series incorporates various built-in safeguards, including overvoltage, undervoltage, and overcurrent protection. This comprehensive approach to safety not only protects the drive itself but also ensures the longevity of connected equipment.

Overall, the Toshiba VF-AS1 Series, with its robust feature set, advanced technologies, and focus on energy efficiency, proves to be a reliable choice for a wide range of industrial applications. Its integration of RS485 communication allows for enhanced connectivity and control, making it an excellent solution for modern automation needs.
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