7-8 Functions Related to
Protection, Warning and Various Output
Signals............................................................................................................ 7-82
7-8-1 Current Limit/Overload Prevention Control/Overload Warning...................... 7-82
7-8-2 Anti-regenerative Control Function................................................................ 7-85
7-8-3 Instantaneous Overcurrent Limitation ........................................................... 7-87
7-8-4 External Trip (EXT)........................................................................................ 7-87
7-8-5 Thermistor Trip Function ............................................................................... 7-88
7-8-6 Frequency Arrival Signal (FAR1 to 3, FDT1 to 4, FAR1FDT1)...................... 7-89
7-8-7 Power ON Time Over/RUN Time (ONT/RNT) ............................................... 7-92
7-8-8 Maintenance monitor..................................................................................... 7-93
7-8-9 Logic Operation Output Signal (LOG1 to LOG3)........................................... 7-94
7-8-10 Capacitor Life Warning Signal (WAC) ........................................................... 7-96
7-8-11 Braking Transistor Broken (DBAL) ................................................................ 7-98
7-8-12 Cooling FAN Control Method Selection......................................................... 7-99
7-8-13 Cooling Fan Life Warning Signal (WAF)........................................................ 7-99
7-8-14 Lifetime Alarm (LIFE) .................................................................................. 7-100
7-8-15 Communications Disconnection Detection Signal (NDc) ............................ 7-101
7-8-16 Starting Contact Signal (FR) ....................................................................... 7-101
7-8-17 Cooling Fin Overheat Warning (OHF) ......................................................... 7-102
7-8-18 Low Current Signal (LOC) ........................................................................... 7-102
7-8-19 Window Comparator/Disconnection Detection (AI1Dc/AIIDc/AIVDc).......... 7-103
7-8-20 Frequency Reference Selection Status Signal (FREF) ............................... 7-105
7-8-21 RUN Command Status Signal (REF) .......................................................... 7-105
7-8-22 2nd control under selection signal (SETM, SWM1)..................................... 7-105
7-8-23 Inverter Output Limiting (IOL, IOL2) ............................................................ 7-106
7-8-24 Low-To-Moderate Voltage Detection (U-EDC) ............................................ 7-106
7-8-25 AX Terminal Function (AX) .......................................................................... 7-107
7-8-26 Light Alarm Selection .................................................................................. 7-108
7-8-27 Input Phase Loss Protection / Output Phase Loss Protection......................7-111
7-8-28 Clearing of Integrated Power (KHC).............................................................7-112
7-9 Other Operation Functions........................................................................ 7-113
7-9-1 Carrier Frequency ........................................................................................7-113
7-9-2 Automatic Carrier Frequency Reduction ......................................................7-114
7-9-3 Starting Frequency and Stop Frequency......................................................7-114
7-9-4 Zero Speed Control ......................................................................................7-115
7-9-5 Frequency Jump Function............................................................................7-116
7-9-6 RUN Direction Limit Selection ......................................................................7-117
7-9-7 Permission of RUN Command .....................................................................7-117
7-9-8 Frequency Calculation Function...................................................................7-118
7-9-9 Frequency Addition Function........................................................................7-118
7-9-10 UP/DOWN control ........................................................................................7-119
7-9-11 AVR (Automatic Voltage Regulator) Function ............................................. 7-121
7-9-12 Overexcitation Control during Deceleration................................................. 7-122
7-9-13 PID Function................................................................................................ 7-123
7-9-14 Automatic Energy-saving Operation Function............................................. 7-141
7-9-15 Commercial Switching (CS) ........................................................................ 7-141
7-9-16 Output current fluctuation damping ............................................................. 7-144
7-9-17 Pulse Train Frequency Input ....................................................................... 7-145
7-9-18 LAD Cancel Function .................................................................................. 7-148
7-9-19 Servo Lock Function.................................................................................... 7-148
7-9-20 Droop Control .............................................................................................. 7-149
7-9-21 Magnetic Flux Level at Light Load............................................................... 7-150
7-9-22 Pre-excitation .............................................................................................. 7-151
7-9-23 Forced Stop................................................................................................. 7-152
7-9-24 Overload Stop Function............................................................................... 7-153
7-9-25 Battery Operation Enable Command (BATRY) ........................................... 7-155
7-9-26 Universal Terminal....................................................................................... 7-155
7-9-27 Protection/Maintenance Mode Selection Function ...................................... 7-157
7 Other Functions
7-2
M1 Series Standard Type User's Manual (I669)