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Toshiba Tosvert VF-AS1 User Manual

Page 13

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E6581301

iii

6.23

Increasing the motor output torque further in low speed range

F-39

6.24

Torque control

F-40

6.24.1

Torque command

F-40

6.24.2

Speed limits in torque control mode

F-40

6.24.3

Torque bias and load sharing gain

F-40

6.25

Torque limit

F-42

6.25.1

Torque limit switching

F-42

6.25.2

Torque limit mode selection at acceleration/deceleration

F-44

6.26

Stall prevention function

F-46

6.26.1

Power running stall continuous trip detection time

F-46

6.26.2

Regenerative braking stall prevention mode selection

F-46

6.27

Current and speed control gain

F-46

6.28

Fine adjustment of frequency setting signal

F-47

6.29

Operating a synchronous motor

F-47

6.30

Acceleration/deceleration 2

F-48

6.30.1

Setting acceleration/deceleration patterns and switching acceleration/deceleration
patterns 1, 2, 3 and 4

F-48

6.31

Pattern operation

F-51

6.32

Preset speed mode

F-53

6.33

Protection functions

F-54

6.33.1

Setting of stall prevention level

F-54

6.33.2

Inverter trip record retention

F-54

6.33.3

Emergency stop

F-55

6.33.4

Output phase failure detection

F-56

6.33.5

OL reduction starting frequency

F-56

6.33.6

Motor 150%-overload time limit

F-56

6.33.7

Input phase failure detections

F-56

6.33.8

Control mode for low current

F-57

6.33.9

Detection of output short circuit

F-57

6.33.10

Overtorque trip

F-58

6.33.11

Cooling fan control selection

F-59

6.33.12

Cumulative operation time alarm setting

F-59

6.33.13

Abnormal speed detection

F-60

6.33.14

Overvoltage limit operation

F-60

6.33.15

Undervoltage trip

F-60

6.33.16

Regenerative power ride-through control level

F-61

6.33.17

Braking answer waiting time

F-61

6.33.18

VI/II analog input wire breakage detection level

F-61

6.33.19

Guide to time of replacement

F-62

6.33.20

Rush current suppression relay activation time

F-62

6.33.21

Motor thermal protection

F-62

6.33.22

Braking resistance overload curve

F-62

6.34

Override

F-63

6.35

Adjustment parameters

F-65

6.35.1

Pulse train output for meters

F-65

6.35.2

Setting of optional meter outputs

F-66

6.35.3

Calibration of analog outputs

F-66

6.36

Operation panel parameter

F-66

6.36.1

Prohibition of key operations and parameter settings

F-67

6.36.2

Displaying the rotational speed of the motor or the line speed

F-68

6.36.3

Changing the steps in which the value displayed changes

F-69

6.36.4

Changing the standard monitor display

F-70

6.36.5

Canceling the operation command

F-70

6.36.6

Selection of operation panel stop pattern

F-70

6.36.7

Setting of a torque command in panel operation mode

F-70

6.36.8

Torque-related parameters for panel operation

F-71

6.37

Tracing functions

F-71

6.38

Communication function

F-75