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6.22 Setting motor constants ······························································································································· F-38
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
6.33.25 Ground fault detection selection ··········································································································· F-68
6.33.26 Disconnection detection of remote keypad ··························································································· F-69
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