Instruction manual
III
4.2.42 PID control (Pr. 128 to Pr. 134) .....................................................................................................................130
4.2.43 Commercial power supply-inverter switch-over function (Pr. 135 to Pr. 139)...............................................137
4.2.44 Output current detection function (Pr. 150, Pr. 151)......................................................................................141
4.2.45 Zero current detection (Pr. 152, Pr. 153).......................................................................................................142
4.2.46 RT signal activated condition selection (Pr. 155)...........................................................................................143
4.2.47 Stall prevention function and current limit function (Pr. 156).........................................................................143
4.2.48 OL signal output timer (Pr. 157).....................................................................................................................145
4.2.49 User group selection (Pr. 160, Pr. 173 to Pr. 176).........................................................................................146
4.2.50 Watt-hour meter clear/actual operation hour meter clear (Pr. 170, Pr. 171) .................................................147
4.2.51 Input terminal function selection (Pr. 180 to Pr. 186) ....................................................................................147
4.2.52 Output terminal function selection (Pr. 190 to Pr. 195)..................................................................................150
4.2.53 User initial value setting (Pr. 199)..................................................................................................................152
4.2.54 Programmed operation function (Pr. 200 to Pr. 231).....................................................................................153
4.2.55 Cooling fan operation selection (Pr. 244) ......................................................................................................157
4.2.56 Stop selection (Pr. 250) .................................................................................................................................158
4.2.57 Output phase failure protection selection (Pr. 251) .......................................................................................159
4.2.58 Override bias/gain (Pr. 252, Pr. 253).............................................................................................................159
4.2.59 Power failure-time deceleration-to-stop function (Pr. 261 to Pr. 266)...........................................................160
4.2.60 Stop-on-contact, load torque high-speed frequency selection (Pr. 270)........................................................161
4.2.61 High-speed frequency control (Pr. 271 to Pr. 274) ........................................................................................162
4.2.62 Stop on contact (Pr. 275, Pr. 276) .................................................................................................................166
4.2.63 Brake sequence function (Pr. 278 to Pr. 285)................................................................................................169
4.2.64 Droop control (Pr. 286, Pr. 287).....................................................................................................................173
4.2.65 Meter (frequency meter) calibration (Pr. 900, Pr. 901) ..................................................................................174
4.2.66 Frequency setting voltage (current) bias and gain (Pr. 902 to Pr. 905).........................................................176
4.2.67 Buzzer control (Pr. 990).................................................................................................................................181
5 PROTECTIVE FUNCTIONS 182
5.1 Errors (Alarms) ......................................................................................................................................................182
5.1.1 Error (alarm) definitions ..................................................................................................................................182
5.1.2 To know the operating status at the occurrence of an alarm..........................................................................191
5.1.3 Correspondences between digital and actual characters...............................................................................191
5.1.4 Alarm code output ..........................................................................................................................................192
5.1.5 Resetting the inverter......................................................................................................................................192
5.2 Troubleshooting.....................................................................................................................................................193
5.2.1 Motor remains stopped...................................................................................................................................193
5.2.2 Motor rotates in opposite direction..................................................................................................................193
5.2.3 Speed greatly differs from the setting.............................................................................................................193
5.2.4 Acceleration/deceleration is not smooth.........................................................................................................193
5.2.5 Motor current is large......................................................................................................................................193
5.2.6 Speed does not increase................................................................................................................................194
5.2.7 Speed varies during operation........................................................................................................................194
5.2.8 Operation mode is not changed properly........................................................................................................194
5.2.9 Operation panel (FR-DU04) display is not provided.......................................................................................194
5.2.10 POWER lamp is not lit...................................................................................................................................194
5.2.11 Parameter write cannot be performed ...........................................................................................................194
5.3 Precautions for Maintenance and Inspection ........................................................................................................195
5.3.1 Precautions for maintenance and inspection..................................................................................................195
5.3.2 Check items....................................................................................................................................................195
5.3.3 Periodic inspection .........................................................................................................................................195
Contents