TOSHIBA TOSBERT VF-AS3 series

Grounding Wiring: The grounding wire must be connected to the [PE] terminal, with specifications not lower than the input/output wire, using a separate grounding method. It is prohibited to share the grounding terminal with the chassis screws or other equipment. The grounding resistance must comply with local electrical standards

Braking resistor wiring: It can only be connected to the [PA/+] and [PB] terminals, and is strictly prohibited from being connected between [PA/+] and [PC/-] to avoid short circuits and fires

Control wire wiring: Shielded wire (cross-sectional area ≥ 0.75mm ²) should be used for the control wire, which should be wired separately from the power wire (spacing ≥ 10cm) to avoid electromagnetic interference; The tightening torque of the terminal screw should comply with the specifications (control terminal about 1.2N · m)

3. Peripheral device configuration

Must be configured:

Short circuit protection device: Molded case circuit breaker (MCCB) or earth leakage circuit breaker (ELCB), installed on the input side of the inverter

Emergency stop device: It needs to be linked with the system and can be stopped by cutting off the power or controlling the signal

Recommended configuration:

Thermal relay (THR): When multiple motors share one inverter, each motor needs to be configured separately

Input reactor: suppresses harmonic interference and improves power factor on the power supply side

Surge absorber: The magnetic contactor (MC) coil side needs to be installed to avoid damage to components caused by surge voltage

Parameter Setting and Operation Guide

（1） Core parameter configuration

1. Basic parameters

Multiple Rating Selection (AUL): The default setting is 600V (575V) HD mode, which can be used to switch voltage levels and rated modes (such as 14=500V ND, 17=690V HD)

Command Selection (CMOd): Terminal control, panel control, Ethernet control, RS485 control, etc. can be selected

Frequency Command Selection (FMOd): Analog input, panel touch wheel, communication command, pulse input, etc. can be selected

Acceleration/deceleration time (ACC/DEC): default 10.0 seconds, adjustable according to load characteristics to avoid start/stop impact

2. Protect parameters

Motor overload protection current (tHrA): set according to the rated current of the motor, with a default value of random capacity variation

Stall prevention level (F601/F185): The default value should be higher than the motor no-load current to avoid frequent triggering of stall protection

Overheating protection: Built in temperature sensor, detects the internal temperature of the inverter, automatically reduces capacity or shuts down when overheating occurs

3. Regional adaptation parameters

Regional settings: Supports parameter presets for 5 regions including Japan, North America, Asia, Europe, and China, covering adaptation values such as frequency and voltage

Basic frequency voltage (vLv/F171, etc.): Different voltage levels correspond to different preset values (e.g. 500V class is 500V, 690V class is 690V)

（2） Operation panel usage

Display function: LCD/LED display screen can display output frequency, current, voltage, torque, fault codes, parameter values, etc., supporting multilingual switching

Monitoring function: It can monitor more than 20 operating parameters in real time, including cumulative operating time, motor overload coefficient, and fault history (including recent multiple fault records)

Parameter operation: supports parameter upload/download, user default parameter saving, parameter reset to factory settings, and can be locked with a password to prevent accidental operation

Applicable scenarios and application value

（1） Core applicable scenarios

Constant torque load scenarios: conveyors, cranes, mixers, compressors, machine tools, etc., adapted to HD rated mode

Variable torque load scenarios: centrifugal fans, centrifugal pumps, blowers, etc., adapted to ND rated mode, with significant energy-saving effects

Precise control scenario: equipment that requires stable speed and precise torque control (such as precision machine tools and packaging machinery)

Distributed control scenario: supports multi protocol communication, can be connected to factory MES system and SCADA system, suitable for automated production lines

（2） Core application value

Strong adaptability: wide voltage and power coverage, dual rated mode switching, compatible with multiple motor types, meeting the needs of different industrial scenarios

Precise control: high frequency accuracy and resolution, multiple control modes to choose from, ensuring equipment stability and product quality

Safe and reliable: With comprehensive safety protection functions and STO safety design, it reduces equipment failures and personnel safety risks

Convenient operation and maintenance: rich monitoring functions, fault recording, and parameter locking, simplifying debugging and maintenance processes

Energy saving and efficient: Reduce load idle losses through precise speed regulation, especially suitable for fan and pump loads, with an energy-saving rate of up to 20%~50%

Precautions and usage restrictions

Power compatibility: cannot be connected to the corner grounding system power supply, the IT system power supply needs to disconnect the grounding capacitor; The power supply voltage must strictly match the rated voltage of the model