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Toshiba RS485, VF-AS1 Series Commands and monitoring from the computer, Pi Off, BIT15 BIT0

Models: RS485 VF-AS1 Series

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8. Commands and monitoring from the computer

Across the network, instructions (commands and frequency) can be sent to each inverter and the operating status of each inverter can be monitored.

8.1. Communication commands (commands from the computer)

„Communication command (Communication number: FA00, FA04)

Commands can be executed on inverter frequencies and operation stop through communication. The VF-AS1 series can enable command and frequency settings through communication irrespec- tive of settings of the command mode selection () and frequency setting mode selection 1 (). However, if “48 (49): Forced switching from communication to local,” “56 (57): Forced continuous operation,” or “58 (59): Specified speed operationj” is set by input terminal function se- lection ( to ), a change to a command other than communication and to a frequency command is feasible through a contact on the terminal board.

Once the communication command (FA00, FA04) is set to enable communication command priority and frequency priority, both priorities will be enabled unless OFF is set, power is turned off or is re- set, or factory default setting () is selected. Emergency stop is always enabled even though communication command priority is not set.

Table 1 Data construction of communication commands (communication number: FA00, FA04)

bit

Specifications

 

 

 

 

 

 

0

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

Remarks

 

0

Preset

speed

operation

Preset

 

speed

operation

 

is

disabled

or

preset

 

 

 

 

 

 

 

 

frequencies 1

 

 

speed

operation

frequencies

(1-15) are set

by

 

 

 

 

 

 

 

1

Preset

speed

operation

specifying bits for preset speed operation frequen-

 

 

 

 

 

 

 

 

frequencies 2

 

 

cies 1-4.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

Preset

speed

operation

(0000: Preset speed operation OFF,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

frequencies 3

 

 

001-1111: Setting of preset speed operation

 

 

 

 

 

 

 

3

Preset

speed

operation

frequencies (1-15))

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

frequencies 4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

Motor selection (1 or 2)

 

 

 

Motor 1

 

 

 

 

 

 

 

Motor2

 

 

 

 

THR1 : 

 

 

(THR 2 selection)

 

 

 

 

(THR 1)

 

 

 

 

 

 

 

(THR2)

 

 

 

 

THR2 : 

 

5

PI control

 

 

 

Normal operation

 

 

 

 

 

PI OFF

 

 

 

 

 

 

 

 

 

 

 

6

Acceleration/deceleration

 

 

Accelera-

 

 

 

 

 

 

Accelera-

 

 

 

 

AD1 : , 

 

 

pattern selection (1 or 2)

tion/deceleration pattern

tion/deceleration pattern

AD2 : , 

 

 

(AD2 selection)

 

 

 

 

 

1 (AD1)

 

 

 

 

 

 

2 (AD2)

 

 

 

 

 

 

 

 

 

 

 

7

DC braking

 

 

 

 

 

 

OFF

 

 

 

 

 

Forced DC braking

 

 

 

 

 

 

 

8

Jog run

 

 

 

 

 

 

 

OFF

 

 

 

 

 

 

 

 

Jog run

 

 

 

 

 

 

 

 

 

 

 

9

Forward/reverse

run se-

 

Forward run

 

 

 

Reverse run

 

 

 

 

 

 

 

 

 

 

lection

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

Run/stop

 

 

 

 

 

 

Stop

 

 

 

 

 

 

 

 

Run

 

 

 

 

 

 

 

 

 

 

 

11

Coast stop command

 

 

 

Standby

 

 

 

 

 

Coast stop

 

 

 

 

 

 

 

 

 

12

Emergency stop

 

 

 

 

 

OFF

 

 

 

 

 

Emergency stop

 

 

Always enabled, “E” trip

 

13

Fault reset

 

 

 

 

 

 

OFF

 

 

 

 

 

 

 

 

Reset

 

 

 

 

No data is returned from the inverter.

 

14

Frequency

priority

selec-

 

 

 

OFF

 

 

 

 

 

 

 

Enabled

 

 

 

 

Enabled regardless of the set-

 

 

tion

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ting of 

 

15

Command

priority

selec-

 

 

 

OFF

 

 

 

 

 

 

 

Enabled

 

 

 

 

Enabled regardless of the set-

 

 

tion

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ting of 

 

 

 

 

Note: The acceleration/deceleration change command OR with Bit 8 and 9 of Communication num-

 

 

 

ber FA20 and FA22.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ex.: Forward run command used in two-wire RS485 communication (PFA008400) CR

 

 

 

 

1 is specified for bit 15 (communication command: enabled) and bit 10 (operation command).

 

 

 

 

FA00:

 

BIT15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BIT0

 

 

 

 

 

1

 

0

 

0

0

 

0

1

 

0

0

 

0

 

0

 

0

 

0

 

0

0

 

0

0

 

 

 

 

 

 

 

 

 

 

 

 

8

 

 

 

 

 

4

 

 

 

 

0

 

 

 

 

 

 

 

0

 

 

 

 

Ex.: Reverse run command used in two-wire RS485 communication (PFA008600) CR, (PFA00C600) CR 8600H : To disable frequency instructions from the computer

C600H : To enable also frequency instructions from the computer

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Toshiba RS485 Commands and monitoring from the computer, Communication commands commands from the computer, Pi Off
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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.