Mitsubishi Electric F700 Instruction Manual Page 87
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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82
Inspection Item
(1) Display of the life alarm
· Pr. 255 Life alarm status display can be used to confirm that the control circuit capacitor, main circuit capacitor,
cooling fan, and each parts of the inrush current limit circuit has reached the life alarm output level.
(2) Measuring method of life of the main circuit capacitor
·
If the value of capacitor capacity measured before shipment is considered as 100%, Pr. 255 bit1 is turned on
when the measured value falls below 85%.
· Measure the capacitor capacity according to the following procedure and check the deterioration level of the
capacitor capacity.
1) Check that the motor is connected and at a stop.
2) Set "1" (measuring start) in Pr. 259
3) Switch power off. The inverter applies DC voltage to the motor to measure the capacitor capacity while the
inverter is off.
4) After confirming that the LED of the operation panel is off, power on again.
5) Check that "3" (measuring completion) is set in Pr. 259, then read Pr .255 and check the life of the main circuit
capacitor.
Pr.255
(decimal)
bit
(binary)
Inrush current
limit circuit life
Cooling
fan life
Main circuit
capacitor life
Control circuit
capacitor life
15 1111
14 1110
13 1101
12 1100
11 1011
10 1010
9 1001
8 1000
7 0111
60110
5 0101
4 0100
30011
2 0010
1 0001
0 0000
: with alarm, : without alarm
POINT
Life check of the main circuit capacitor needs to be done by Pr. 259. (Refer to the following.)
REMARKS
· The life of the main circuit capacitor can not be measured in the following conditions.
(a) FR-HC, FR-CV, FR-BU, MT-HC, MT-RC, MT-BU5, or BU is connected.
(b) Terminal R1/L11, S1/L21 or DC power supply is connected to the terminals P/+ and N/−.
(c) Switch power on during measuring.
(d) The motor is not connected to the inverter.
(e) The motor is running.(The motor is coasting.)
(f) The motor capacity is two rank smaller as compared to the inverter capacity.
(g) The inverter is at an alarm stop or an alarm occurred while power is off.
(h) The inverter output is shut off with the MRS signal.
(i) The start command is given while measuring.
· Operating environment:Ambient temperature (annual average 40°C (free from corrosive gas, flammable gas, oil mist, dust
and dirt))
Output current (80% of the rated current of Mitsubishi standard 4P motor)
POINT
For the accurate life measuring of the main circuit capacitor, perform after more than 3h passed since the turn off
of the power as it is affected by the capacitor temperature.
0 0 0 0 0 0 0 0 0 0 0 0 1 0 0
bit0 Control circuit capacitor life
1
15bit 7 0
bit1 Main circuit capacitor life
bit2 Cooling fan life
bit3 Inrush current limit circuit life
• Pr.255 read
Bit image is displayed
in decimal
• Pr.255 setting read
- 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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