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Mitsubishi Electric FR-F700PJ Instruction Manual Page 10

Air-conditioning inverter.
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5.1
Reset method of protective function .............................................. 296
5.2
List of fault or alarm indications..................................................... 297
5.3
Causes and corrective actions ....................................................... 298
5.4
5.5
Check first when you have a trouble .............................................. 309
5.5.1
Motor does not start.................................................................................................................... 309
5.5.2
Motor or machine is making abnormal acoustic noise................................................................ 311
5.5.3
Inverter generates abnormal noise............................................................................................. 312
5.5.4
Motor generates heat abnormally ............................................................................................... 312
5.5.5
Motor rotates in the opposite direction ....................................................................................... 312
5.5.6
Speed greatly differs from the setting ......................................................................................... 312
5.5.7
Acceleration/deceleration is not smooth ..................................................................................... 313
5.5.8
Speed varies during operation.................................................................................................... 313
5.5.9
Operation mode is not changed properly ................................................................................... 314
5.5.10 Operation panel display is not operating .................................................................................... 314
5.5.11 Motor current is too large............................................................................................................ 314
5.5.12 Speed does not accelerate ......................................................................................................... 315
5.5.13 Unable to write parameter setting............................................................................................... 315
6
6.1
Inspection items.............................................................................. 318
6.1.1
Daily inspection .......................................................................................................................... 318
6.1.2
Periodic inspection ..................................................................................................................... 318
6.1.3
Daily and periodic inspection ...................................................................................................... 319
6.1.4
Display of the life of the inverter parts ........................................................................................ 320
6.1.5
Checking the inverter and converter modules ............................................................................ 320
6.1.6
Cleaning ..................................................................................................................................... 320
6.1.7
Replacement of parts ................................................................................................................. 321
6.2
6.2.1
Measurement of powers ............................................................................................................. 326
6.2.2
Measurement of voltages and use of PT .................................................................................... 326
6.2.3
Measurement of currents............................................................................................................ 327
6.2.4
Use of CT and transducer .......................................................................................................... 327
6.2.5
Measurement of inverter input power factor ............................................................................... 327
6.2.6
6.2.7
Measurement of inverter output frequency ................................................................................. 327
295
317
VI

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