Mitsubishi Electric FR-E540 Instruction Manual download pdf (Page 8)

III

4.2.39 Computer link operation (Pr. 117 to Pr. 124).................................................................................................109

4.2.40 PID control (Pr. 128 to Pr. 134) .....................................................................................................................120

4.2.41 Commercial power supply-inverter switch-over function (Pr. 135 to Pr. 139)...............................................127

4.2.42 Zero current detection (Pr. 152, Pr. 153).......................................................................................................133

4.2.43 RT signal activated condition selection (Pr. 155)...........................................................................................134

4.2.44 Stall prevention function and current limit function (Pr. 156).........................................................................134

4.2.45 OL signal output timer (Pr. 157).....................................................................................................................136

4.2.46 User group selection (Pr. 160, Pr. 173 to Pr. 176).........................................................................................137

4.2.47 Watt-hour meter clear/actual operation hour meter clear (Pr. 170, Pr. 171) ................................................138

4.2.48 Input terminal function selection (Pr. 180 to Pr. 186) ....................................................................................138

4.2.49 Output terminal function selection (Pr. 190 to Pr. 195)..................................................................................140

4.2.50 User initial value setting (Pr. 199)..................................................................................................................142

4.2.51 Cooling fan operation selection (Pr. 244) ......................................................................................................143

4.2.52 Output phase failure protection selection (Pr. 251) .......................................................................................143

4.2.53 Override bias/gain (Pr. 252, Pr. 253).............................................................................................................144

4.2.54 Advanced PID control (Pr. 500 to Pr. 516) (NA, EC versions only) ...............................................................145

4.2.55 Meter (frequency meter) calibration (Pr. 900, Pr. 901) ..................................................................................155

4.2.56 Frequency setting voltage (current) bias and gain (Pr. 902 to Pr. 905)........................................................157

4.2.57 Buzzer control (Pr. 990).................................................................................................................................162

5 PROTECTIVE FUNCTIONS 163

5.1 Errors (Alarms) ......................................................................................................................................................163

5.1.1 Error (alarm) definitions ..................................................................................................................................163

5.1.2 To know the operating status at the occurrence of an alarm..........................................................................172

5.1.3 Correspondences between digital and actual characters...............................................................................172

5.1.4 Alarm code output ..........................................................................................................................................173

5.1.5 Resetting the inverter......................................................................................................................................173

5.2 Troubleshooting.....................................................................................................................................................174

5.2.1 Motor remains stopped...................................................................................................................................174

5.2.2 Motor rotates in opposite direction..................................................................................................................174

5.2.3 Speed greatly differs from the setting.............................................................................................................174

5.2.4 Acceleration/deceleration is not smooth.........................................................................................................174

5.2.5 Motor current is large......................................................................................................................................175

5.2.6 Speed does not increase................................................................................................................................175

5.2.7 Speed varies during operation........................................................................................................................175

5.2.8 Operation mode is not changed properly........................................................................................................175

5.2.9 Operation panel (FR-DU04) display is not provided.......................................................................................175

5.2.10 POWER lamp is not lit...................................................................................................................................175

5.2.11 Parameter write cannot be performed ...........................................................................................................175

5.3 Precautions for Maintenance and Inspection ........................................................................................................176

5.3.1 Precautions for maintenance and inspection..................................................................................................176

5.3.2 Check items....................................................................................................................................................176

5.3.3 Periodic inspection .........................................................................................................................................176

5.3.4 Insulation resistance test using megger .........................................................................................................177

5.3.5 Pressure test ..................................................................................................................................................177

5.3.6 Daily and Periodic Inspection .........................................................................................................................177

5.3.7 Replacement of parts .....................................................................................................................................180

5.3.8 Inverter replacement.......................................................................................................................................181

5.3.9 Measurement of main circuit voltages, currents and power ...........................................................................182

Contents

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Mitsubishi Electric FR-E540 Instruction Manual Page 8

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