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Varispeed G7
YASKAWA Varispeed G7 User Manual
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3
Digit
al Operator and Modes
This cha
pter describ
es Digita
l Operator
displays
and funct
ions, and pr
ovides an
overview o
f
operating
modes and s
witching b
etween modes.
Digital Oper
ator
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.........
..............
..............
..........
3-2
Modes
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.....
3-5
76
78
Table of Contents
Default Chapter
1
Instruction Manual
1
General Precautions
2
Safety Information
3
Safety Precautions
4
Warning Information and Position
8
Warranty Information
9
Registered Trademarks
10
Before Reading this Manual
10
Table of Contents
11
1 Handling Inverters
19
Varispeed G7 Introduction
20
Varispeed G7 Models
20
Confirmations Upon Delivery
21
Checks
21
Nameplate Information
21
Inverter Specifications
22
Component Names
23
Exterior and Mounting Dimensions
24
Open Chassis Inverters (IP00)
24
Enclosed Wall-Mounted Inverters [NEMA1 (Type 1)]
25
Checking and Controlling the Installation Site
27
Installation Site
27
Controlling the Ambient Temperature
27
Protecting the Inverter from Foreign Matter
27
Installation Orientation and Space
28
Removing and Attaching the Terminal Cover
29
Removing the Terminal Cover
29
Attaching the Terminal Cover
30
Removing/Attaching the Digital Operator and
31
Inverters of 15 Kw or Less
31
Mounting the Digital Operator
32
Mounting the Front Cover
32
Removing the Front Cover
32
Inverters of 18.5 Kw or more
34
Removing and Attaching the Protection Cover
35
Removing the Protection Cover
35
Attaching the Protection Cover
36
2 Wiring
37
Connections to Peripheral Devices
38
Connection Diagram
39
Terminal Block Configuration
41
Wiring Main Circuit Terminals
42
Applicable Wire Sizes and Closed-Loop Connectors
42
Main Circuit Terminal Functions
49
Main Circuit Configurations
50
Standard Connection Diagrams
51
Wiring the Main Circuits
52
Wiring Main Circuit Inputs
52
Ground Wiring
56
Wiring Control Circuit Terminals
58
Wire Sizes and Closed-Loop Connectors
58
Wiring Method
59
Control Circuit Terminal Functions
60
Control Circuit Terminal Connections
64
Control Circuit Wiring Precautions
65
Wiring Check
66
Checks
66
Installing and Wiring Option Boards
67
Option Board Models and Specifications
67
Installation
68
PG Speed Control Board Terminals and Specifications
69
Wiring
71
Wiring Terminal Blocks
74
Selecting the Number of PG (Encoder) Pulses
75
3 Digital Operator and Modes
77
Digital Operator
78
Digital Operator Display
78
Digital Operator Keys
78
Modes
81
Inverter Modes
81
Switching Modes
82
Drive Mode
83
Quick Programming Mode
84
Advanced Programming Mode
86
Verify Mode
89
Autotuning Mode
90
4 Trial Operation
92
Overview of Trial Operation Procedure
93
Trial Operation Procedures
94
Setting the Power Supply Voltage Jumper (400 V Class Inverters of 55 Kw or Higher)
94
Power on
94
Checking the Display Status
95
Basic Settings
96
Settings for the Control Methods
98
Autotuning
100
Application Settings
107
No-Load Operation
107
Connecting the Load
107
Loaded Operation
107
Check and Recording User Constants
108
Adjustment Suggestions
109
5 User Constants
114
User Constant Descriptions
115
Description of User Constant Tables
115
Digital Operation Display Functions and Levels
116
User Constants Settable in Quick Programming Mode
117
User Constant Tables
121
A: Setup Settings
121
B: Application Constants
123
C: Autotuning Constants
134
D: Reference Constants
140
E: Motor Constant Constants
146
F: Option Constants
152
H: Terminal Function Constants
159
L: Protection Function Constants
171
N: Special Adjustments
182
O: Digital Operator Constants
186
T: Motor Autotuning
190
U: Monitor Constants
191
Factory Settings that Change with the Control Method (A1-02)
200
Factory Settings that Change with the Inverter Capacity (O2-04)
203
6 Constant Settings by Function
207
Frequency Reference
208
Selecting the Frequency Reference Source
208
Using Multi-Step Speed Operation
211
Varispeed G7 Function Block
214
Run Command
216
Selecting the Run Command Source
216
Stopping Methods
218
Selecting the Stopping Method When a Stop Command Is Sent
218
Using the DC Injection Brake
222
Using an Emergency Stop
223
Acceleration and Deceleration Characteristics
224
Setting Acceleration and Deceleration Times
224
Accelerating and Decelerating Heavy Loads (Dwell Function)
228
Preventing the Motor from Stalling During Acceleration (Stall Prevention During Acceleration Function)
229
Related Parameters
229
Preventing Overvoltage During Deceleration (Stall Prevention During Deceleration Function)
231
Preventing Overvoltage by Automatically Reducing the Regenerative Torque Limit (Overvoltage Inhibit Function, PRG: 102 Only)
232
Adjusting Frequency References
234
Adjusting Analog Frequency References
234
Operation Avoiding Resonance (Jump Frequency Function)
237
Adjusting Frequency Reference Using Pulse Train Inputs
239
Speed Limit (Frequency Reference Limit Function)
240
Limiting Maximum Output Frequency
240
Limiting Minimum Frequency
240
Improved Operating Efficiency
242
Reducing Motor Speed Fluctuation (Slip Compensation Function)
242
Compensating for Insufficient Torque at Startup and Low-Speed Operation (Torque Compensation)
244
Hunting-Prevention Function
246
Stabilizing Speed (Speed Feedback Detection Function)
247
Machine Protection
248
Reducing Noise and Leakage Current
248
Limiting Motor Torque (Torque Limit Function)
252
Preventing Motor Stalling During Operation
255
Changing Stall Prevention Level During Operation Using an Analog Input
256
Using Frequency Detection: L4-01 to L4-05
256
Detecting Motor Torque
259
Changing Overtorque and Undertorque Detection Levels Using an Analog Input
262
Motor Overload Protection
263
Setting Motor Protection Operation Time
265
Motor Overheating Protection Using PTC Thermistor Inputs
266
Limiting Motor Rotation Direction
268
Continuing Operation
269
Restarting Automatically after Power Is Restored
269
Speed Search
270
Continuing Operation at Constant Speed When Frequency Reference Is Lost
277
Restarting Operation after Transient Fault (Auto Restart Function)
278
Operation Selection after Cooling Fan Fault
279
Inverter Protection
280
Performing Overheating Protection on Mounted Braking Resistors
280
Reducing Inverter Overheating Pre-Alarm Warning Levels
281
Input Terminal Functions
282
Temporarily Switching Operation between Digital Operator and Control Circuit Terminals
282
Blocking Inverter Outputs (Baseblock Commands)
283
Stopping Acceleration and Deceleration (Acceleration/Deceleration Ramp Hold)
284
Raising and Lowering Frequency References Using Contact Signals (UP/DOWN)
285
Accelerating and Decelerating Constant Frequencies in the Analog References (+/- Speed)
288
Hold Analog Frequency Using User-Set Timing
289
Switching Operations between a Communications Option Board and Control Circuit Terminals
289
Jog Frequency Operation Without Forward and Reverse Commands (FJOG/RJOG)
290
Stopping the Inverter by Notifying Programming Device Errors to the Inverter (External Fault Function)
291
Output Terminal Functions
292
Monitor Constants
294
Using the Analog Monitor Constants
294
Using Pulse Train Monitor Contents
296
Individual Functions
298
Communications Specifications
298
Using MEMOBUS Communications
298
Communications Connection Terminal
299
Message Format
301
Slave Address
301
Monitor Data
306
Enter Command
308
Error Codes
309
Slave Not Responding
309
Using the Timer Function
311
Pid Control Applications
312
Pid Control Operation
312
Using PID Control
312
Monitor Functions
314
Energy-Saving
321
Setting Motor Constants
323
Setting the V/F Pattern
326
Torque Control
333
Monitor Function
335
Speed Control (ASR) Structure
342
Fine Adjustments
344
Increasing the Speed Reference Response (Feed Forward Control)
348
Droop Control Function
349
Zero-Servo Function
351
Digital Operator Functions
354
Setting Digital Operator Functions
354
Copying Constants
357
Prohibiting Writing Constants from the Digital Operator
362
Setting a Password
362
Displaying User-Set Constants Only
363
Options
364
Performing Speed Control with PG
364
Using Digital Output Boards
368
Using an Analog Reference Board
370
Using a Digital Reference Board
371
Using Inverters for Elevating Machines
376
Brake ON/OFF Sequence
376
Using Inverters for Elevating Machines
377
Autotuning
378
Braking Resistor Overheating Protection
378
Momentary Power Loss Restart
378
Stall Prevention During Deceleration
378
Torque Limit
378
Acceleration/Deceleration Time
379
External Baseblock Signal
379
I/O Open-Phase Protection and Overtorque Detection
379
Magnetic Contactor on the Inverter's Output-Side
379
Control-Related Adjustments
380
Reducing Shock During Elevating Machine Start, Stop, Acceleration, and Deceleration
382
Confirming Startup Current and Reducing Carrier Frequency
385
Overvoltage Inhibit Function
386
Current Alarm Function
387
Peak Hold Current Monitoring Function
388
Maintenance Timer Display Function
389
Settings Required to Use Maintenance Timer Display Function
389
Settings Required after Replacement of Cooling Fan or Electrolytic Capacitor
390
7 Troubleshooting
391
Protective and Diagnostic Functions
392
Fault Detection
392
Fault Displays and Processing
392
Alarm Detection
405
Operation Errors
410
Errors During Autotuning
412
Errors When Using the Digital Operator Copy Function
413
Troubleshooting
415
If Constant Constants Cannot be Set
415
If the Motor Does Not Operate
416
If the Direction of the Motor Rotation Is Reversed
419
If the Motor Does Not Put out Torque or if Acceleration Is Slow
419
If the Motor Operates Higher than the Reference
419
If the Slip Compensation Function Has Low Speed Precision
420
If There Is Low Speed Control Accuracy at High-Speed Rotation in Open-Loop Vector Control Method
420
If Motor Deceleration Is Slow
420
If the Motor Overheats
421
If There Is Noise When the Inverter Is Started or from an am Radio
422
If the Ground Fault Interrupter Operates When the Inverter Is Run
422
If There Is Mechanical Oscillation
422
If the Torque Generated for the Motor Is Insufficient (Insufficient Power)
424
Large Compared to that at Medium and High Speeds
424
If Shock Occurs Near the Speed Estimator Switching Frequency in Open-Loop Vector 2 Control
424
Only)
424
If Torque Ripple Occurs at very Low Speeds in Open-Loop Vector 2 Control (PRG: 102 Only)
425
If the Motor Rotates Even When Inverter Output Is Stopped
425
If OV Is Detected When the Fan Is Started, or Fan Stalls
425
If Output Frequency Does Not Rise to Frequency Reference
425
Acoustic Noise from the Motor
426
8 Maintenance and Inspection
427
Maintenance and Inspection
428
Outline of Warranty
428
Daily Inspection
428
Periodic Inspection
428
Periodic Maintenance of Parts
429
Procedure for Adjusting Constants after Replacement of Control Board
429
Types and Number of Cooling Fans Used in the Drive
431
Cooling Fan Replacement Outline
432
Circulation Fan Replacement Outline
442
Removing and Mounting the Control Circuit Terminal Board
447
9 Specifications
448
Standard Inverter Specifications
449
Specifications by Model
449
Common Specifications
451
Specifications of Options and Peripheral Devices
453
10 Appendix
457
Varispeed G7 Control Methods
458
Control Methods and Features
458
Control Methods and Applications
460
Inverter Application Precautions
462
Selection
462
Installation
463
Settings
463
DC Injection Braking
463
Handling
464
Motor Application Precautions
465
Using the Inverter for an Existing Standard Motor
465
Using the Inverter for Special Motors
466
Power Transmission Mechanism (Speed Reducers, Belts, and Chains)
466
Conformance to UL Standard
467
Conformance to CE Markings
469
CE Markings
469
Requirements for Conformance to CE Markings
469
Emc Directive
473
Wiring Examples
476
Using a Braking Resistor Unit
476
Using a Braking Unit and Braking Resistor Unit
477
Using Braking Units in Parallel
478
Using a Braking Unit and Three Braking Resistor Units in Parallel
479
Using a VS Operator
480
Using Transistors for Input Signals and a 0-V Common in Sinking Mode with an Internal Power Supply
481
Using Transistors for Input Signals and a +24-V Common in Sourcing Mode
482
Using Transistors for Input Signals and a 0-V Common in Sinking Mode with an External Power Supply
483
Using Contact and Open Collector Outputs
484
User Constants
485
Revision History
496
Other manuals for YASKAWA Varispeed G7
Connection Manual
64 pages
User Manual
52 pages
4
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YASKAWA Varispeed G7 Specifications
General
Brand
YASKAWA
Model
Varispeed G7
Category
Inverter
Language
English
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