Mitsubishi Electric FR-E540 Instruction Manual Page 45
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INSTALLATION AND WIRING
34
•
••
• Data examples
By decreasing the carrier frequency, the noise
terminal voltage* can be reduced. Use Pr. 72 to set
the carrier frequency to a low value (1kHz).
Though motor noise increases at a low carrier
frequency, selection of Soft-PWM in Pr. 240 will
make it unoffending.
Differences between Noise Terminal Voltages
at Different Carrier Frequencies
0.1 0.3 0.5 1 3 5 10 30
20
60
80
100
120
0
FR-F520-3.7K
fc=0.7kHz
fc=14.5kHz
fc=2.0kHz Soft-PWM(Factory setting)
FR-A120E-3.7K fc=14.5kHz
Conditions
!
Motor: 3.7kW (5HP)
!
Average terminal voltage 0dB=1
µ
V
120dB=1V
Noise terminal voltage (dB)
Noise frequency (MHz)
By decreasing the carrier frequency, noise will be
about as low as that of our conventional FR-Z200
series.
By using shielded cables as signal cables, induction
noise can be reduced greatly (to 1/10 - 1/100).
Induction noise can also be reduced by moving the
signal cables away from the inverter output cables.
(Separation of 30cm (11.81inches) reduces noise to
1/2-1/3.)
By fitting the FR-BSF01 or BLF on the inverter
output side, induction noise to the signal cables can
be reduced.
Noise Terminal Voltage of Inverter and Example
of Its Reduction by Noise Filters
0.1 0.3 0.5 1 3 5 10 30
20
60
80
100
120
0
FR-F520-3.7K(fc=0.7kHz)
FR-Z220-3.7K
Noise fre
q
uenc
y
(
MHz
)
Noise terminal voltage (dB)
Conditions
!
Motor:3.7kW (5HP)
!
Average terminal voltage 0dB=1
µ
V
120dB=1V
Noise Induced to Signal Cables by Inverter Output
Cables
20
40
60
80
100
10
0
20 30 40 50
5cm
d(cm)
FR-BLF
FR-BSF01
(4T)
Line-to-line distance, d (cm)
Induction voltage (dB)
Parallel cable
Twisted pair cable
Coaxial cable
Conditions
!
Inverter: FR-F520-3.7K
!
Motor: SF-JR 4P 3.7kW (5HP)
!
Output frequency: 30Hz
!
Noise form: Normal mode
Inverter
Motor
Terminal
Measuring instrument
*Noise terminal voltage: Represents the magnitude of noise propagated from the inverter to the power supply.
2
- FR-F520-0.75K to 55K 1
- FR-F540-0.75K to 55K(-EC) 1
- FR-F520-11K to 55K-NA 1
- FR-F540-11K to 55K-NA 1
- SAFETY INSTRUCTIONS 3
- 1. Electric Shock Prevention 3
- 2. Fire Prevention 3
- 3. Injury Prevention 3
- 4. Additional instructions 4
- (2) Wiring 4
- (3) Trial run 4
- (4) Operation 4
- (5) Emergency stop 5
- (7) Disposing of the inverter 5
- (8) General instructions 5
- CONTENTS 6
- Contents 6
- 6 SPECIFICATIONS 184 9
- 7 OPTIONS 192 9
- APPENDICES 195 9
- CHAPTER 1 10
- 1.1 Pre-Operation Information 11
- 1.2 Basic Configuration 12
- 1.3 Structure 13
- Front cover 14
- Inverter 14
- INSTALLATION AND WIRING 17
- 2.1 Installation 18
- 2.2 Wiring 20
- Notes on Grounding 24
- EC version 30
- NA and Japanese version 30
- Twin contact 38
- Low-level signal contacts 38
- 2.3 Other wiring 39
- 2.3.6 Peripheral devices 48
- 2.3.9 Earthing (EC version) 53
- CHAPTER 3 54
- OPERATION/CONTROL 54
- 3.1 Pre-Operation Information 55
- 3.1.2 Power on 57
- 3.2 Operation Panel 58
- 3.2.3 Monitoring 59
- 3.2.4 Frequency setting 59
- 3.2.6 Operation mode 61
- 3.2.7 Help mode 61
- 3.2.8 Copy mode 63
- 3.3.1 Parameter checking 64
- Simple mode parameter 65
- 3.3.2 Main parameter settings 66
- 3.4 Operation 68
- CONTROL PANEL 69
- 3.4.3 PU operation mode 70
- 3.4.4 Combined operation mode 71
- CHAPTER 4 72
- PARAMETERS 72
- 4 PARAMETERS 73
- 4.1 Parameter List 73
- Output frequency (Hz) 81
- Output voltage 81
- (Pr. 52 to Pr. 54, Pr. 158) 99
- With alarm 100
- PARAMETERS 101
- 4.2.29 Applied motor (Pr. 71) 110
- 4.2.31 Voltage input (Pr. 73) 112
- (Pr. 75) 113
- Time (Minute) 131
- Minute (Second) 131
- (Pr. 135 to Pr. 139) 140
- Set time (s) 149
- Overload status (OL output) 149
- OL output signal 149
- (Pr. 170, Pr. 171) 151
- Pr. 516 Pr. 504 163
- Pr. 502 + Pr. 503 163
- (Pr. 902 to Pr. 905) 170
- MON EXT PU 172
- PROTECTIVE FUNCTIONS 176
- 5 PROTECTIVE FUNCTIONS 177
- 5.1 Errors (Alarms) 177
- (2) Minor fault 184
- (3) Warnings 184
- 5.1.4 Alarm code output 187
- 5.1.5 Resetting the inverter 187
- 5.2 Troubleshooting 188
- 5.3.2 Check items 190
- 5.3.3 Periodic inspection 190
- 5.3.5 Pressure test 191
- <Preparation> 193
- <Checking method> 193
- Fan cover 194
- Fan connectors 194
- <Example: FR-F540-5.5K> 194
- 5.3.8 Inverter replacement 195
- CHAPTER 6 198
- SPECIFICATIONS 198
- 6 SPECIFICATIONS 199
- 6.1 Standard Specifications 199
- 6.1.2 Common specifications 201
- 95 (3.74) 203
- CHAPTER 7 207
- 7 OPTIONS 208
- 7.1 Option List 208
- • Inboard options 210
- APPENDICES 211
- Appendix 1 Data Code List 212
- REVISIONS 217
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