E6581442
iii
6.23
Increasing the motor output torque further in low speed range ···································································· F-42
6.24 Torque
control ·············································································································································· F-43
6.24.1 Torque
command ·································································································································· F-43
6.24.2
Speed limits in torque control mode ······································································································ F-43
6.24.3
Selection of tension torque bias input and load sharing gain input ······················································· F-44
6.25 Torque
limit··················································································································································· F-45
6.25.1
Torque limit switching···························································································································· F-45
6.25.2
Torque limit mode selection at acceleration/deceleration······································································ F-47
6.26 Stall
prevention
function ······························································································································· F-49
6.26.1
Power running stall continuous trip detection time ················································································ F-49
6.26.2 Regenerative
braking
stall prevention mode selection·········································································· F-49
6.26.3
Stall prevention control switching ·········································································································· F-49
6.27
Current and speed control adjustment ······································································································· F-50
6.27.1
Current and speed control gain············································································································· F-50
6.27.2
Prevention of motor current oscillation at light load ·············································································· F-50
6.27.3
Max output voltage modulation rate ······································································································ F-50
6.28
Fine adjustment of frequency setting signal ································································································· F-51
6.29
Operating a synchronous motor··················································································································· F-51
6.30 Acceleration/deceleration
2·························································································································· F-52
6.30.1
Setting acceleration/deceleration patterns and switching acceleration/deceleration
patterns 1, 2, 3 and 4 ···························································································································· F-52
6.31 Pattern
operation·········································································································································· F-55
6.32 Preset
speed mode ······································································································································ F-57
6.33 Protection
functions······································································································································ F-58
6.33.1
Setting of stall prevention level ············································································································· F-58
6.33.2
Inverter trip record retention·················································································································· F-58
6.33.3 Emergency
stop ···································································································································· F-59
6.33.4
Output phase failure detection ·············································································································· F-60
6.33.5
OL reduction starting frequency ············································································································ F-61
6.33.6
Motor 150%-overload time limit ············································································································ F-61
6.33.7
Input phase failure detections ··············································································································· F-61
6.33.8
Control mode for low current················································································································· F-61
6.33.9
Detection of output short circuit ············································································································ F-62
6.33.10 Overtorque
trip ······································································································································ F-62
6.33.11
Cooling fan control selection················································································································· F-63
6.33.12 Cumulative
operation time alarm setting······························································································· F-64
6.33.13 Abnormal
speed
detection ···················································································································· F-64
6.33.14
Overvoltage limit operation ··················································································································· F-65
6.33.15 Undervoltage trip··································································································································· F-65
6.33.16
Regenerative power ride-through control level ····························································································
F-65
6.33.17
Braking answer waiting time ················································································································· F-65
6.33.18
VI/II analog input wire breakage detection level···················································································· F-66
6.33.19
Guide to time of replacement················································································································ F-66
6.33.20
Rush current suppression relay activation time ···················································································· F-66
6.33.21 Motor
thermal
protection ······················································································································· F-67
6.33.22
Braking resistance overload curve ········································································································ F-67
6.33.23
Selection of a restart condition for the motor stopped with a mechanical brake ···································
F-67
6.33.24
Protection against a failure of the control power backup device (optional CPS002Z) ···························
F-68
6.34 Override ······················································································································································· F-69
6.35 Adjustment parameters ································································································································ F-71
6.35.1
Pulse train output for meters················································································································· F-71
6.35.2
Setting of optional meter outputs ·········································································································· F-72
6.35.3
Calibration of analog outputs ················································································································ F-72
6.36
Operation panel parameter ·························································································································· F-73
6.36.1
Prohibition of key operations and parameter settings ··········································································· F-73
6.36.2
Displaying the rotational speed of the motor or the line speed ····························································· F-74
6.36.3
Changing the steps in which the value displayed changes ··································································· F-75
6.36.4
Changing the standard monitor display································································································· F-76
