Mitsubishi Electric F700 Instruction Manual Page 76
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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Causes and corrective actions
5
TROUBLESHOOTING
Operation Panel
Indication
E.OP1 FR-PU04 Option slot alarm 1
Name
Communication option alarm
Description
Stops the inverter output if a communication line error of the communication option occurs.
Check point
· Check for a wrong option function setting and operation.
· Check that the plug-in option is plugged into the connector securely.
· Check for a brake in the communication cable.
· Check that the terminating resistor is fitted properly.
Corrective action
· Check the option function setting, etc.
· Connect the plug-in option securely.
· Check the communication cable connecting.
Operation Panel
Indication
E. 1 FR-PU04
Fault 1
Name
Option alarm
Description
Stops the inverter output if a contact fault or the like of the connector between the inverter and
communication option occurs.
Check point
1. Check that the plug-in option is plugged into the connector securely.
2. Check for excess electrical noises around the inverter.
Corrective action
1. Connect the plug-in option securely.
2. Take measures against noises if there are devices producing excess electrical noises around the inverter.
If the problem still persists after taking the above measure, please contact your sales
representative or distributor.
Operation Panel
Indication
E.PE FR-PU04 Corrupt Memry
Name
Parameter storage device alarm (control circuit board)
Description A fault occurred in parameters stored (EEPROM failure)
Check point Check for too many number of parameter write times.
Corrective action
Please contact your sales representative.
When performing parameter write frequently for communication purposes, set "1" in Pr. 342 to
enable RAM write. Note that powering off returns the inverter to the status before RAM write.
Operation Panel
Indication
E.PE2 FR-PU04 Fault 14
Name
Parameter storage device alarm (main circuit board)
Description
A fault occurred in parameters stored (EEPROM failure)
Check point
——————
Corrective action
Please contact your sales representative.
Operation Panel
Indication
E.PUE FR-PU04 PU Leave Out
Name
PU disconnected
Description
This function stops the inverter output if communication between the inverter and PU is suspended,
e.g. the operation panel and parameter unit is disconnected, when "2", "3", "16" or "17" was set in
Pr. 75 Reset selection/disconnected PU detection/PU stop selection. This function stops the inverter
output when communication errors occurred consecutively for more than permissible number of
retries when a value other than "9999" is set in Pr. 121 Number of PU communication retries during the
RS-485 communication with the PU connector. This function also stops the inverter output if
communication is broken for the period of time set in Pr. 122 PU communication check time interval.
Check point
· Check that the FR-DU07 or parameter unit (FR-PU04) is fitted tightly.
· Check the Pr. 75 setting.
Corrective action
Fit the FR-DU07 or parameter unit (FR-PU04) securely.
Operation Panel
Indication
E.RET FR-PU04 Retry No Over
Name
Retry count excess
Description
If operation cannot be resumed properly within the number of retries set, this function stops the
inverter output.
Check point
Find the cause of alarm occurrence.
Corrective action
Eliminate the cause of the error preceding this error indication.
- INSTRUCTION MANUAL (BASIC) 1
- INVERTER 1
- 4. Additional Instructions 2
- Environment 2
- , surge suppressor or radio 2
- 2 INSTALLATION AND WIRING 2 3
- 3 DRIVE THE MOTOR 28 3
- 4 ADJUSTMENT 51 4
- 5 TROUBLESHOOTING 62 4
- 7 SPECIFICATIONS 91 5
- APPENDICES 110 5
- FR --F740 6
- 2 INSTALLATION AND WIRING 7
- 2.1 Peripheral devices 8
- Peripheral devices 9
- INSTALLATION AND WIRING 10
- •Reinstallation 11
- 2.4 Wiring 13
- 200V class 14
- Screw size 17
- Cable Sizes 19
- (3) Total wiring length 21
- (2) Output signals 23
- (separate power) 25
- (7) Control logic switchover 27
- 2.4.7 RS-485 terminal block 30
- 2.4.8 Communication operation 30
- 3.1 Step of operation 33
- 3.2 Operation panel (FR-DU07) 34
- Operation panel (FR-DU07) 35
- DRIVE THE MOTOR 36
- Operation 37
- 3 Base frequency 39
- (PU operation mode) 40
- Flickering 42
- Operation Display 43
- DisplayOperation 45
- 11. Stop 45
- (external operation) 48
- Three-phase 50
- AC power supply 50
- 10. Stop 51
- 7. Mode/monitor check 51
- 4 ADJUSTMENT 56
- CAUTION 58
- (Pr.7, Pr.8) 59
- ADJUSTMENT 60
- 4.7 Parameter clear 63
- 4.8 All parameter clear 64
- 4.9 Parameter copy 65
- 4.10 Parameter verification 66
- 5.1 List of alarm display 67
- Causes and corrective actions 68
- TROUBLESHOOTING 68
- Inverter 79
- (2) Clearing procedure 81
- 6.1 Inspection Item 84
- Inspection Item 85
- 6.1.6 Cleaning 88
- 6.1.7 Replacement of parts 89
- 6.1.8 Inverter replacement 93
- Earth (ground) terminal 94
- Measuring 95
- 7.1 Rating 96
- •400V class 97
- 7.2 Common specifications 98
- Common specifications 99
- Outline dimension drawings 100
- SPECIFICATIONS 100
- • DC reactor supplied 106
- • FR-F740-250K, 280K, 315K 106
- • FR-F740-400K 108
- • FR-F740-450K 109
- • FR-F740-500K, 560K 110
- • FR-PU04 111
- • FR-F740-185K to 315K 113
- • FR-F740-355K or more 113
- APPENDICES 115
- Extended parameters 117
- Extended parameter list 118
- (2) Wiring instructions 139
- Instructions for installation 140
- (1) EMC Directive 142
- (2) Low Voltage Directive 142
- Print Date 143
- Manual Number 143
- Revision 143
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