Protective functions
Causes and corrective actions
FR-A800
6 - 35
Operation panel
indication
E.OD
FR-LU-08
Position fault
Name
Excessive position fault
Description
The inverter trips when the difference between the position command and position feedback
exceeds Pr. 427 "Excessive level error" under position control.
Check point
앫
Check that the position detecting encoder mounting orientation matches the parameter.
앫
Check that the load is not large.
앫
Check that the Pr. 427, Pr. 369 (851) "Number of encoder pulses" settings are correct.
Corrective action
앫
Check the parameters.
앫
Reduce the load.
앫
Set Pr. 427, Pr. 369 correctly.
Operation panel
indication
E.MB1 to E.MB7
to
FR-LU-08
E.MB1 Fault to
E.MB7 Fault
Name
Brake sequence fault
Description
The inverter trips when a sequence error occurs during use of the brake sequence function
(Pr. 278 to Pr. 285). This protective function is not available in the initial status. (The brake
sequence function is invalid.) (For the details of fault record, refer to page 5-501.)
Check point
Find the cause of the fault occurrence.
Corrective action
Check the set parameters and perform wiring properly.
Operation panel
indication
E.EP
FR-LU-08
Encoder phase fault
Name
Encoder phase fault
Description
The inverter trips when the rotation command of the inverter differs from the actual motor
rotation direction detected from the encoder during offline auto tuning. This protective function
is not available in the initial status.
Check point
앫
Check for mis-wiring of the encoder cable.
앫
Check if the Pr. 359 852)"Encoder rotation direction" setting is incorrect.
Corrective action
앫
Perform connection and wiring securely.
앫
Change the Pr. 359 (852) setting.
Operation panel
indication
E.MP FR-LU-08
MagnetPole Pos
Fault
Name
Magnetic pole position unknown
Description
The inverter trips when the rotation command of the inverter differs from the actual motor
rotation direction detected from the encoder during offline auto tuning. This protective function
is not available in the initial status.
Check point
앫
Check for mis-wiring of the encoder cable.
앫
Check if the Pr. 359 "Encoder rotation direction" setting is incorrect.
Corrective action
앫
Perform connection and wiring securely.
앫
Change the Pr. 359 setting.
Vector
Vector
Vector
Vector
Vector
Vector
Summary of Contents for FR-A820-00046 (0.4K)
Page 2: ......
Page 4: ......
Page 144: ...System configuration for Ethernet communication FR A800 E Installation and wiring 2 114 ...
Page 202: ...Basic operation procedure JOG operation Basic operation 4 32 ...
Page 1090: ...Check first when you have a trouble Protective functions 6 50 ...
Page 1189: ...Appendix EC Declarations of Conformity FR A800 A 49 ...
Page 1190: ...EC Declarations of Conformity Appendix A 50 ...
Page 1191: ...Appendix EC Declarations of Conformity FR A800 A 51 ...
Page 1192: ...EC Declarations of Conformity Appendix A 52 ...
Page 1193: ...Appendix EC Declarations of Conformity FR A800 A 53 ...
Page 1194: ...EC Declarations of Conformity Appendix A 54 ...
Page 1195: ...Appendix EC Declarations of Conformity FR A800 A 55 ...
Page 1196: ...EC Declarations of Conformity Appendix A 56 ...
Page 1197: ...Appendix EC Declarations of Conformity FR A800 A 57 ...
Page 1198: ...EC Declarations of Conformity Appendix A 58 ...
Page 1199: ...Appendix EC Declarations of Conformity FR A800 A 59 ...
Page 1200: ...EC Declarations of Conformity Appendix A 60 ...
Page 1201: ...Appendix EC Declarations of Conformity FR A800 A 61 ...
Page 1202: ...EC Declarations of Conformity Appendix A 62 ...
Page 1203: ...Appendix EC Declarations of Conformity FR A800 A 63 ...
Page 1204: ...EC Declarations of Conformity Appendix A 64 ...
Page 1205: ...Appendix EC Declarations of Conformity FR A800 A 65 ...
Page 1206: ...EC Declarations of Conformity Appendix A 66 ...
Page 1207: ...Appendix EC Declarations of Conformity FR A800 A 67 ...
Page 1208: ...EC Declarations of Conformity Appendix A 68 ...
Page 1209: ...Appendix EC Declarations of Conformity FR A800 A 69 ...
Page 1210: ...EC Declarations of Conformity Appendix A 70 ...
Page 1211: ...Appendix EC Declarations of Conformity FR A800 A 71 ...
Page 1212: ...EC Declarations of Conformity Appendix A 72 A 7 2 FR A846 series ...
Page 1213: ...Appendix EC Declarations of Conformity FR A800 A 73 ...
Page 1214: ...EC Declarations of Conformity Appendix A 74 ...
Page 1215: ...Appendix EC Declarations of Conformity FR A800 A 75 ...
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