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Toshiba TOSVERT VF-S15 Instruction Manual

Functions for lift application.
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E6581871①
TOSVERT VF-S15
Functions for lift application Instruction Manual

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   Summary of Contents for Toshiba TOSVERT VF-S15

  • Page 1

    E6581871① TOSVERT VF-S15 Functions for lift application Instruction Manual...

  • Page 2: Table Of Contents

    E6581871 - Contents - 1. Introduction ....................2 2. Functions ..................... 2 3. Light –load high-speed operation function ..........3 3.1 Related parameters......................3 3.2 Mode description......................4 3.2.1 Automatic setting mode of high-speed operation speed (f328=1, 2) ....6 3.2.2 Fixed setting mode of high-speed operation speed (f328=3, 4) .......

  • Page 3: Introduction

    E6581871 1. Introduction TOSVERT VF-S15 has effective functions for lift application. This instruction manual explains the light-load high-speed operation function and the brake sequence function of VF-S15 for crane and hoists applications. <Note> This instruction manual mentions factory specific coefficient parameters.

  • Page 4: Light -load High-speed Operation Function

    E6581871 3. Light –load high-speed operation function 3.1 Related parameters Minimum Commu setting unit Title nication Function Adjustment range Default setting (Panel/ Communication) Offset of light load measurement f327 0327 0-2000 (%) 1000 torque 0:Disabled 1: High-speed operation speed set automatically (Power running at F command: Increase) 2: High-speed operation speed set automatically Light-load high-speed operation...

  • Page 5: Mode Description

    E6581871 3.2 Mode description The light-load high-speed operation includes the modes below: Each mode can be set by the light-load high-speed operation selection (f328). Title/function Default setting Action 0: Disabled Light-load high-speed operation disabled. 1:High-speed operation speed set automatically When inverter judges to be light-load, f328 (Power running at F command: Increase) the high-speed operation frequency...

  • Page 6

    E6581871 2) f328 (Light-load high-speed operation selection) setting is not 0 Light load output (Function No. 106/107) ON: The inverter judges that the light-load high-speed operation is possible during light-load judgment time, and heavy-load is not detected during light-load high-speed operation. When HSLL (Light-load high-speed operation prohibitive signal) is ON before light-load high-speed operation, light-load output is not ON while HSLL is ON.

  • Page 7: Automatic Setting Mode Of High-speed Operation Speed (f328=1, 2)

    E6581871 3.2.1 Automatic setting mode of high-speed operation speed (f328=1, 2) The diagram on the next page (Fig.1) is the timing chart when the automatic setting mode of high-speed operation speed (f328=1) is applied to lift application. At the operation frequency of the light-load high-speed operation switching lower limit frequency (f331) or more (point A in the Fig.1), if a detected torque (*1) after reaching the set speed is the switching load torque during power running (f335 setting value) or less, the inverter judges that the load is light.

  • Page 8

    E6581871 《Example of operation》Light-load high-speed operation selection (f328=1: High-speed operation speed set automatically): F (Up) Light-load high-speed operation Operation frequency (Hz) High-speed operation frequency varies with load torque. f102 Light-load high-speed operation load detection time f333 Speed reach detection band Light-load high-speed operation load f102 waiting time f332...

  • Page 9: Fixed Setting Mode Of High-speed Operation Speed (f328=3, 4)

    E6581871 3.2.2 Fixed setting mode of high-speed operation speed (f328=3, 4) The diagram on the next page (Fig.2) is the timing chart when fixed setting mode of the high-speed operation speed (f328=3) is applied to lift application. At the operation frequency of the light-load high-speed operation switching lower limit frequency (f331) or more (point A in the Fig.2), if an average torque during the light-load high-speed operation load detection time (f333) after reaching the set speed and after a lapse of the light-load high-speed operation load detection waiting time (f332) is under the switching load torque during power running...

  • Page 10

    E6581871 《Example of operation》Light-load high-speed operation selection (f328=3: High-speed operation set with f330): F (Up) Light-load high-speed operation Automatic light-load high-speed operation frequency f330 f102 Light-load high-speed operation load detection time f333 Speed reach detection band Light-load high-speed operation f102 load waiting time f332 Speed reach detection band...

  • Page 11: How To Adjust Parameters

    E6581871 3.3 How to adjust parameters If the light-load high-speed operation is used, be sure to set the motor-related parameters (Motor constants). Refer to Section 6.25 of VF-S15 instruction manual (E6581611) to set motor-related parameters. In addition, for the high-speed operation fixed setting mode (f328=3, 4), learning function simplifies the adjustment of the light-load high-speed operation.

  • Page 12

    E6581871 Set the value of corresponding parameters after each operation is checked. (1)Setting of f337 (Heavy-load torque during constant power running) Calculate f337 by the torque value τ3. f337 = τ3 × ul/vl (2)Setting of f335 (Switching load torque during power running) Calculate f335 by f337 f335 = f337 - Max (τ3-τ1, 5%) (3)Setting of f336 (Heavy-load torque during power running)

  • Page 13: Fixed Setting Mode Of High-speed Operation Speed (f328=3, 4)

    E6581871 3.3.2 Fixed setting mode of high-speed operation speed (f328=3, 4) 《Adjustment method using the learning function for lift application》 When the light-load high-speed operation is carried out with normal operation of 60Hz, follow the procedure below: Ex.: f330=90Hz 1) Set the automatic light-load high-speed operation frequency (f330). 2) Set the light-load high-speed learning function (f329) to 1 (Forward run learning).

  • Page 14: Frequency Switching Acceleration/deceleration At Light Load (f339)

    E6581871 《Cautions》 • If the result of learning operation is as follows, the learning operation is completed when it stops without transition to the high-speed operation. Switching load torque during power running (f335) is 70% or more Switching load torque during regenerative braking (f338) is 70% or more •...

  • Page 15: Brake Sequence Functions

    E6581871 4. Brake sequence functions 4.1. Standard connection for lift application <SINK logic> Braking Resistor PC/- PA/+ No excitation MCCB operation brake R/L1 U/T1 S/L2 V/T2 Main Circuit T/L3 W/T3 Motor Control Forward run signal Circuit Reverse run signal Reset Preset speed 1 (LOW speed) Surge absorber...

  • Page 16: Parameter Adjustment Procedure For Brake Sequence Function

    E6581871 4.2 Parameter adjustment procedure for brake sequence function Set f460 and f462 following to the table mentioned in 4.3 prior to use brake sequence function, Set related parameters such as cmod, fmod. Set vector control parameters (motor constant value) by executing the auto-tuning functions without load.

  • Page 17: Setting Sample Of Related Parameters

    E6581871 4.3 Setting sample of related parameters Minimum setting Comm. Default Setting Title Functions Setting range value Notes Number value sample (Panel/Comm.) cmod Command mode selection 0:Terminal input enabled 0003 0 - 4 fmod Frequency setting mode selection 1 0 - 14 3:Setting dial 2 0004 Acceleration time 1...

  • Page 18

    E6581871 (*3) Select the vector control in case of using brake sequence functions (output terminal functions: 68, 69). Set au2 (Torque boost setting macro function) =2 (vector control + auto-tuning), or set motor constant parameters (f401 to f417) and pt (V/F control mode selection) =3 (vector control) (*4) f304 (Dynamic braking selection) =1 to4 (Enabled) setting will process automatically as same as f305 (Overvoltage limit operation) =1 (Disabled).

  • Page 19: Brake Sequence Function

    E6581871 4.4 Brake sequence function The brake sequence function is to ensure smooth operation with the motor by producing enough torque before the brake is released.  Starting procedure After the run command is ON, the motor produce the torque set with f343. The brake release request signal is put out through the brake output terminal at the same time the torque is generated.

  • Page 20

    E6581871  Small current detection The brake release request signal is not output during f325 (Brake releasing waiting time) setting time after the brake release (the torque command is issued) after the run command is When f326 (Brake releasing small current detection level) is set, the inverter trip as low-current operation fault (uc) if the output current is f326 or less after a lapse of f325 setting time.

  • Page 21: Parameters For Brake Sequence Functions

    E6581871 4.4.1 Parameters for brake sequence functions Default setting Title Functions Setting range Setting sample Notes value f325 Brake releasing waiting time 0.00-2.50 (s) 0.00 0.00 Brake releasing small current f326 0-100 (%) detection level f340 Creeping time 1 0.00 - 10.00 (s) 0.00 0:Disabled 1:Forward winding up...

  • Page 22

    E6581871 f344 : Lowering torque bias multiplier The torque bias value at brake release is set by f342 (Load portion torque input selection). When winding down, the torque bias value is multiplied by this parameter value. Usually, a necessary torque in winding down is decreased by squaring the mechanical efficiency.

  • Page 23: Execution Of "brake Time Learning

    Note 4: For the brake sequence functions, the pre-excitation time is automatically determined by the inverter from motor-related constants. When the VFS15S-2022PL-W is used in combination with a Toshiba 4P-2.2kW-60Hz-200V standard motor, the pre-excitation time is approximately 0.1 to 0.2 seconds.

  • Page 24: Brake Timing With Maximum Load

    E6581871 4.4.3 Brake timing with maximum load Confirm if there is any problem with brake timing with maximum load after completion of adjustment of brake timing at no-load (light load). Please confirm the following items; - Whether or not brake is released smoothly without load gap (shifts) at winding up or starting - With our without load gap (shifts) when the brake operates? - With or without load gap (shifts) when repeating start (run/stop)? - With or without unusual noise from the brake at the time of start and stop.

  • Page 25: Abnormal Phenomenon And The Measures

    E6581871 4.4.4 Abnormal phenomenon and the measures Abnormal phenomenon and the measures (adjustment item) according to load and operating condition Load Operating Abnormal phenomenon Countermeasure (adjustment item) condition condition 1) Set f345 (Brake release time) to short. 2) Lower the value of f344 Wind down after winding up a little (Lowering torque bias multiplier) by No-load...

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