Mitsubishi Electric FR-A500 Instruction Manual page 7

4.2.40 V/F control frequency (voltage) (Pr. 100 to Pr. 109).......................................................................125
4.2.41 Computer link operation (Pr. 117 to Pr. 124, Pr. 342) ....................................................................126
4.2.42 PID control (Pr. 128 to Pr. 134) ......................................................................................................137
4.2.43 Commercial power supply-inverter switchover function (Pr. 135 to Pr. 139)..................................144
4.2.44 Output current detection function (Pr. 150, Pr. 151).......................................................................149
4.2.45 Zero current detection (Pr. 152, Pr. 153)........................................................................................150
4.2.46 RT signal activated condition selection (Pr. 155) ...........................................................................151
4.2.47 Stall prevention function and current limit function (Pr. 156)..........................................................151
4.2.48 OL signal output timer (Pr. 157) .....................................................................................................153
4.2.49 User group selection (Pr. 160, Pr. 173 to Pr. 176) .........................................................................154
4.2.50 Watt-hour meter clear/actual operation hour meter clear (Pr. 170, Pr. 171) ..................................155
4.2.51 Input terminal function selection (Pr. 180 to Pr. 186) .....................................................................155
4.2.52 Output terminal function selection (Pr. 190 to Pr. 195) ..................................................................158
4.2.53 User initial value setting (Pr. 199) ..................................................................................................160
4.2.54 Programmed operation function (Pr. 200 to Pr. 231) .....................................................................161
4.2.55 Cooling fan operation selection (Pr. 244) .......................................................................................165
4.2.56 Stop selection (Pr. 250)..................................................................................................................166
4.2.57 Output phase failure protection selection (Pr. 251) ........................................................................167
4.2.58 Override bias/gain (Pr. 252, Pr. 253)..............................................................................................167
4.2.59 Power failure-time deceleration-to-stop function (Pr. 261 to Pr. 266) ............................................168
4.2.60 Stop-on-contact, load torque high-speed frequency selection (Pr. 270) ........................................169
4.2.61 High-speed frequency control (Pr. 271 to Pr. 274).........................................................................170
4.2.62 Stop-on-contact control function (Pr. 275, Pr. 276) ........................................................................174
4.2.63 Brake sequence function (Pr. 278 to Pr. 285) ................................................................................177
4.2.64 Droop control (Pr. 286, Pr. 287) .....................................................................................................181
4.2.65 Capacitor life alarm (Pr. 503, Pr. 504)............................................................................................182
4.2.66 FM / AM terminal calibration (Pr. 900, Pr. 901) .............................................................................183
4.2.67 Frequency setting voltage (current) bias and gain (Pr. 902 to Pr. 905)..........................................185
4.2.68 PU buzzer control (Pr. 990)............................................................................................................190
CHAPTER 5 PROTECTIVE FUNCTIONS
5.1 Errors (Alarms)................................................................................................ 192
5.1.1 Error (alarm) definitions..................................................................................................................192
5.1.2 To know the operating status at the occurrence of an alarm .........................................................201
5.1.3 Correspondences between digital and actual characters...............................................................201
5.1.4 Alarm code output ..........................................................................................................................202
5.1.5 Resetting the inverter .....................................................................................................................202
5.2 Troubleshooting............................................................................................... 203
5.2.1 Motor remains stopped...................................................................................................................203
5.2.2 Motor rotates in opposite direction .................................................................................................203
5.2.3 Speed greatly differs from the setting.............................................................................................203
5.2.4 Acceleration/deceleration is not smooth.........................................................................................203
5.2.5 Motor current is large .....................................................................................................................203
5.2.6 Speed does not increase................................................................................................................204
5.2.7 Speed varies during operation .......................................................................................................204
5.2.8 Operation mode is not changed properly .......................................................................................204
5.2.9 Operation panel (FR-DU04) display is not provided.......................................................................204
5.2.10 POWER lamp is not lit....................................................................................................................204
5.2.11 Parameter write cannot be performed............................................................................................204
III
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