Mitsubishi Electric F700 Instruction Manual Page 55
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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50
Operation by the start command of the
terminal block (external operation)
3.6.6 Change the frequency (60Hz) of the maximum value of potentiometer (at 20mA)
<How to change the maximum frequency?>
The motor will not rotate ... Why?
Check that [EXT] is lit.
[EXT] is valid when Pr. 79 = "0" (initial value).
Use to lit [EXT].
Check that the AU signal is on.
Turn the AU signal on.
Check that wiring is orrect. Check it again.
Change the frequency (0Hz) of the minimum value of potentiometer (at 4mA)
Adjust the frequency in calibration parameter C5 Terminal 4 frequency setting bias frequency.
(Refer to the Instruction Manual (applied).)
Changing example When you want to use the 4 to 20mA input frequency setting potentiometer to change the
20mA-time frequency from 60Hz (initial value) to 50Hz
Adjust to output 50Hz at 20mA current input.
Set "50Hz" in Pr. 126.
The frequency meter (indicator) connected to across terminals FM-SD does not indicate just 50Hz ... Why?
The meter can be adjusted by calibration parameter C0 FM terminal calibration.
(Refer to the Instruction Manual (applied).)
(error at writing) is displayed.
The gain and bias frequency settings are too close.
Set frequency at 4mA using calibration
parameter C5 and adjust the indicator using
calibration parameter C0.
(Refer to the Instruction Manual (applied).)
REMARKS
As other adjustment methods of frequency setting voltage gain, there are methods to adjust with a voltage applied to across
terminals 4-5 and adjust at any point without a voltage applied.
(Refer to the Instruction Manual (applied) for the setting method of calibration parameter C7.)
PU
EXT
4.Press to set the value.
6.
Turn the start switch (STF or STR) on to allow
20mA current to flow.
1.
Turn until (
Pr. 126) appears.
5.Mode/monitor check
Press twice to choose the
monitor/frequency monitor.
DisplayOperation
2.Press to show the currently set value.
(60.00Hz)
3.Turn to change the set value to "50.00".
(50.00Hz)
Flicker ··· 50Hz output at 20mA input complete!!
(Refer to 3.6.5 steps 2 to 5)
Output frequency
(Hz)
Pr.126
0
Frequency setting signal
100%
Initial value
Bias
Gain
0
20
4 20mA
C5
(Pr.904)
C6
(Pr.904) (Pr.905)
C7
60Hz
- 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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