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6.23 Increasing the motor output torque further in low speed range···································································· F-38
6.24 Torque control·············································································································································· F-39
6.24.1 Torque command·································································································································· F-39
6.24.2 Speed limits in torque control mode······································································································ F-39
6.24.3 Torque bias and load sharing gain········································································································ F-39
6.25 Torque limit··················································································································································· F-41
6.25.1 Torque limit switching···························································································································· F-41
6.25.2 Torque limit mode selection at acceleration/deceleration······································································ F-43
6.26 Stall prevention function······························································································································· F-45
6.26.1 Power running stall continuous trip detection time················································································ F-45
6.26.2 Regenerative braking stall prevention mode selection·········································································· F-45
6.27 Current and speed control adjustment········································································································· F-45
6.27.1 Current and speed control gain············································································································· F-45
6.27.2 Prevention of motor current oscillation at light load··············································································· 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-58
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
6.33.23 Selection of a restart condition for the motor stopped with a mechanical brake ··································· F-63
6.33.24 Protection against a failure of the control power backup device (optional CPS002Z)··························· F-63
6.34 Override······················································································································································· F-65
6.35 Adjustment parameters································································································································ F-67
6.35.1 Pulse train output for meters················································································································· F-67
6.35.2 Setting of optional meter outputs·········································································································· F-68
6.35.3 Calibration of analog outputs················································································································ F-68
6.36 Operation panel parameter ·························································································································· F-69
6.36.1 Prohibition of key operations and parameter settings··········································································· F-69
6.36.2 Displaying the rotational speed of the motor or the line speed ····························································· F-70
6.36.3 Changing the steps in which the value displayed changes··································································· F-71
6.36.4 Changing the standard monitor display································································································· F-72
6.36.5 Canceling the operation command······································································································· F-72
6.36.6 Selection of operation panel stop pattern······························································································ F-72