Toshiba VF-A7 VFD
Hi everyone,
The Toshiba A7 VFD is a high-performance, versatile drive designed for industrial applications. It offers advanced control methods, including sinusoidal PWM control, to ensure smooth and efficient operation of your motors.
Key Features:
Control Method: Sinusoidal PWM control for precise motor control.
Output Voltage Adjustment: Main circuit voltage feedback control with automatic regulation.
Output Frequency Range: 0.01 to 400Hz, with default settings of 0.01 to 80Hz. The maximum frequency is adjustable from 30 to 400Hz.
Frequency Setting Resolution: High resolution of 0.01Hz for panel input and 0.015Hz for analog input.
Frequency Precision: +/-0.2% for analog input and +/-0.01% for digital input.
Voltage/Frequency Characteristic: Offers constant V/f, variable torque, automatic torque boost, vector control, and automatic energy-saving control.
Frequency Setting Signal: Compatible with various input signals including potentiometer, 0 to 10Vdc, and 4 to 20mAdc.
PID Control: Includes adjustments for proportional gain, integral time, and anti-hunting gain.
Torque Control: Voltage control reference from DC0 to +/-10V.
Acceleration/Deceleration Time: Adjustable from 0.01 to 6000 seconds with automatic function and S-pattern options.
DC Injection Braking: Includes adjustments for start frequency, braking current, and braking time.
Forward/Reverse Run: Easily switchable with terminal board inputs.
Preset-Speed Operation: Up to 15-speed presets possible with open/close combinations.
Protective Functions: Comprehensive protection including stall prevention, current limit, over-current, over-voltage, and thermal overload protection.
Cooling Fan ON/OFF: Automatically stops the fan when not necessary to extend its lifetime.
Regenerative Power Ride-Through Control: Continues operation during momentary power failures using regenerative energy from the motor.
Simple Pattern Run: Up to 32 patterns in 4 groups for flexible operation control.
High-Speed Run at Low-Load: Increases motor speed to improve operation efficiency when the load is low.
Drooping Function: Prevents overload on a single inverter when multiple inverters are used to drive the same load.
Service Environment:
Indoor use, altitude up to 1000m, and ambient temperature range of -10 to +50°C.
Vibration resistance up to 5.9m/s² according to JIS C0911.
Communication Functions:
Equipped with RS485 as standard, with options for RS232C, TOSLINE-F10M, and TOSLINE-S20.
Input/Output Terminal Logic Switching:
A-contact/B-contact switchable, with sink/source switching for control terminals.
Monitoring and Display Functions:
4-digit 7-segment LED display for easy monitoring of operation frequency, output current, DC voltage, and more.
Edit function for easy detection of parameter changes.
The Toshiba A7 VFD is designed to meet the demands of various industrial applications, providing reliable and efficient control of your motors.
+ Toshiba VF-A7 add Casette (pdf)
+ Toshiba VF-A7 Board option (pdf)
+ Toshiba VF-A7 Commercial Power Supply Backup (pdf)
+ Toshiba VF-A7 Communication (pdf)
+ Toshiba VF-A7 CE Marking (pdf)
+ Toshiba VF-A7 Control Power supply (pdf)
+ Toshiba VF-A7 Expansion Tp card (pdf)
+ Toshiba VF-A7 Explanation current control (pdf)
+ Toshiba VF-A7 Explanation exciting starting rate (pdf)
+ Toshiba VF-A7 Explanation exciting strengthening coefficient (pdf)
+ Toshiba VF-A7 Explanation fine tuning for analog input (pdf)
+ Toshiba VF-A7 Explanation of functions for lift (pdf)
+ Toshiba VF-A7 Parameter list (pdf)
+ Toshiba VF-A7 User Manual (pdf)
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+ Toshiba VFD-A7 User manual >
+ VF-A7 Fault codes 1 >>
+ VF-A7 Fault codes 2 >>
+ VF-A7 Fault codes 3 >>
+ VF-A7 Fault codes 4 >>
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