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FR-A721-5.5K
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Mitsubishi FR-A721-5.5K manual available for free PDF download: Instruction Manual
Mitsubishi FR-A721-5.5K Instruction Manual (226 pages)
INVERTER FR-A701
Brand:
Mitsubishi
| Category:
Air Conditioner
| Size: 12.42 MB
Table of Contents
Table of Contents
4
Specifications
7
1 Outline
8
Product Checking and Parts Identification
8
Inverter and Peripheral Devices
9
Peripheral Devices
10
Method of Removal and Reinstallation of the
11
Installation of the Inverter and Enclosure Design
13
Inverter Installation Environment
13
Cooling System Types for Inverter Enclosure
16
Inverter Placement
17
2 Wiring
19
Terminal Connection Diagram
19
Main Circuit Terminal Specifications
20
Specification of Main Circuit Terminal
20
Terminal Arrangement of the Main Circuit Terminal, Power Supply and the Motor Wiring
21
Cables and Wiring Length
23
When Connecting the Control Circuit and the Main Circuit Separately to the Power Supply
26
Control Circuit Specifications
27
Control Circuit Terminals
27
Changing the Control Logic
30
Control Circuit Terminal Layout
32
Wiring Instructions
32
When Connecting the Operation Panel Using a Connection Cable
33
Terminal Block
33
Communication Operation
34
USB Connector
34
Connection of Motor with Encoder (Vector Control)
35
Initial Setting
40
3 Precautions for Use of the Inverter
42
EMC and Leakage Currents
42
Leakage Currents and Countermeasures
42
EMC Measures
44
Power Supply Harmonics
46
Harmonic Suppression Guideline
46
Power-Off and Magnetic Contactor (MC)
48
Inverter-Driven 400V Class Motor
49
Precautions for Use of the Inverter
50
Failsafe of the System Which Uses the Inverter
52
4 Driving the Motor
54
Step of Operation
54
Operation Panel (FR-DU07)
55
Parts of the Operation Panel (FR-DU07)
55
Basic Operation (Factory Setting)
56
Operation Lock (Press [MODE] for an Extended Time (2S))
57
Monitoring of Output Current and Output Voltage
58
First Priority Monitor
58
Setting Dial Push
58
Changing the Parameter Setting Value
59
Parameter Clear, All Parameter Clear
60
Parameter Copy and Parameter Verification
61
Before Operation
63
Simple Mode Parameter List
63
Overheat Protection of the Motor by the Inverter (Pr. 9)
64
When the Rated Motor Frequency Is 50Hz (Pr. 3)
65
Increase the Starting Torque (Pr. 0)
66
Limit the Maximum and Minimum Output Frequency (Pr. 1, Pr. 2)
67
Change Acceleration and Deceleration Time (Pr. 7, Pr. 8)
68
Selection of the Start Command and Frequency Command Locations (Pr. 79)
69
Large Starting Torque and Low Speed Torque Are Necessary (Advanced Magnetic Flux Vector Control, Real Sensorless Vector Control) (Pr. 71, Pr. 80, Pr. 81, Pr. 800)
70
Higher Accuracy Operation Using a Motor with Encoder (Vector Control) (Pr.71, Pr.80, Pr.81, Pr.359, Pr.369, Pr.800)
73
Exhibiting the Best Performance of the Motor Performance (Offline Auto Tuning) (Pr. 71, Pr. 83, Pr. 84, Pr. 96)
78
High Accuracy Operation Unaffected by the Motor Temperature (Online Auto Tuning) (Pr. 95)
83
Operation Method
83
To Perform High Accuracy/Fast Response Operation (Gain Adjustment of Real Sensorless Vector Control and Vector Control) (Pr. 818 to Pr. 821, Pr. 880)
84
Start/Stop from the Operation Panel (PU Operation Mode)
90
Setting the Set Frequency to Operate (Example: Performing Operation at 30Hz)
90
Use the Setting Dial Like a Potentiometer to Perform Operation
92
Setting the Frequency by Switches (Three-Speed Setting)
93
Setting the Frequency by Analog Input (Voltage Input)
95
Setting the Frequency by Analog Input (Current Input)
97
Start and Stop Using Terminals (External Operation)
99
Setting the Frequency by the Operation Panel (Pr. 79 = 3)
99
Setting the Frequency by Switches (Three-Speed Setting) (Pr. 4 to Pr. 6)
101
Setting the Frequency by Analog Input (Voltage Input)
103
Changing the Frequency (60Hz, Initial Value) at the Maximum Voltage Input (5V, Initial Value)
104
Setting the Frequency by Analog Input (Current Input)
105
Changing the Frequency (60Hz, Initial Value) at the Maximum Current Input (at 20Ma, Initial Value)
106
Parameter List
107
List of Parameters Classified by the Purpose
107
Parameter List
110
5 Troubleshooting
148
Reset Method of Protective Function
148
List of Fault or Alarm Display
149
Causes and Corrective Actions
150
Correspondences between Digital and Actual Characters
166
Check and Clear of the Faults History
167
Check First When You Have a Trouble
169
Motor Does Not Start
169
Motor or Machine Is Making Abnormal Acoustic Noise
171
Inverter Generates Abnormal Noise
171
Motor Generates Heat Abnormally
172
Motor Rotates in the Opposite Direction
172
Speed Greatly Differs from the Setting
172
Acceleration/Deceleration Is Not Smooth
173
Motor Current Is too Large
173
Speed Does Not Accelerate
174
Motor and Machine Vibrate
174
Speed Varies During Operation
175
Operation Mode Is Not Changed Properly
176
Operation Panel (FR-DU07) Display Is Not Operating
176
Power Lamp Is Not Lit
176
Unable to Write Parameter Setting
176
6 Precautions for Maintenance and Inspection
177
Inspection Item
177
Daily Inspection
177
Periodic Inspection
177
Daily and Periodic Inspection
178
Display of the Life of the Inverter Parts
179
Checking the Inverter and Converter Modules
180
Checking Method
180
Cleaning
181
Replacement of Parts
181
Measurement of Main Circuit Voltages, Currents and Powers
184
Measurement of Powers
186
Measurement of Voltages and Use of PT
186
Measurement of Currents
187
Use of CT and Transducer
187
Measurement of Inverter Input Power Factor
187
Measurement of Converter Output Voltage (Across Terminals P/+ and N/-)
188
Measurement of Inverter Output Frequency
188
Insulation Resistance Test Using Megger
188
Pressure Test
188
7 Specifications
189
Rating
189
Inverter Rating
189
Motor Rating
190
Common Specifications
191
Outline Dimension Drawings
192
Inverter Outline Dimension Drawings
192
Dedicated Motor Outline Dimension Drawings
197
Installation of the Heatsink Portion Outside the Enclosure for Use
201
Protrusion of Heatsink
201
Appendices
203
Appendix 1 Main Differences and Compatibilities with the FR-A700 Series
203
Appendix 2 Instructions for Compliance with the EU Directives (400V Class Only)
204
Appendix 3 Instructions for UL and Cul Compliance
206
Appendix 4 Control Mode-Based Parameter (Function) Correspondence Table and Instruction Code List
208
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