Toshiba Tosvert VF-AS1 User Manual
Page 13

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