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VARISPEED G7 General purpose inverter INSTRUCTION MANUAL
Rajan Sharma

VARISPEED G7 General purpose inverter INSTRUCTION MANUAL

Rajan Sharma | 19-Feb-2016 |
Handling Inverters , Wiring , Digital Operator and Modes , Trial Operation , User Constants , Constant Settings by Function , Troubleshooting , Maintenance and Inspection , SPECIFICATIONS ,

Hi friends, here Rajan Sharma uploaded notes for VARISPEED with title VARISPEED G7 General purpose inverter INSTRUCTION MANUAL. You can download this lecture notes, ebook by clicking on the below file name or icon.

1 Handling Inverters .................................................................. 1-1
Varispeed G7 Introduction ............................................................................1-2
Varispeed G7 Models .....................................................................................................1-2
Confirmations upon Delivery ........................................................................1-3
Checks............................................................................................................................1-3
Nameplate Information ...................................................................................................1-3
Component Names.........................................................................................................1-5
Exterior and Mounting Dimensions...............................................................1-7
Open Chassis Inverters (IP00) .......................................................................................1-7
Enclosed Wall-mounted Inverters (NEMA1 Type 1) .......................................................1-7
Checking and Controlling the Installation Site ..............................................1-9
Installation Site ...............................................................................................................1-9
Controlling the Ambient Temperature .............................................................................1-9
Protecting the Inverter from Foreign Matter....................................................................1-9
Installation Orientation and Space..............................................................1-10
Removing and Attaching the Terminal Cover .............................................1-11
Removing the Terminal Cover ...................................................................................... 1-11
Attaching the Terminal Cover........................................................................................ 1-11
Removing/Attaching the Digital Operator and Front Cover ........................1-12
Inverters of 15 kW or Less............................................................................................1-12
Inverters of 18.5 kW or More ........................................................................................1-15
2 Wiring....................................................................................... 2-1
Connections to Peripheral Devices ..............................................................2-2
Connection Diagram.....................................................................................2-3
Terminal Block Configuration........................................................................2-5
Wiring Main Circuit Terminals .......................................................................2-6
Applicable Wire Sizes and Closed-loop Connectors ......................................................2-6
Main Circuit Terminal Functions ...................................................................................2-11
Main Circuit Configurations...........................................................................................2-12
Standard Connection Diagrams....................................................................................2-13
Wiring the Main Circuits................................................................................................2-14
Wiring Control Circuit Terminals .................................................................2-20
Wire Sizes and Closed-loop Connectors ......................................................................2-20
Control Circuit Terminal Functions ...............................................................................2-22
Control Circuit Terminal Connections ...........................................................................2-26
Control Circuit Wiring Precautions................................................................................2-27
x
Wiring Check.............................................................................................. 2-28
Checks ......................................................................................................................... 2-28
Installing and Wiring Option Cards............................................................. 2-29
Option Card Models and Specifications ....................................................................... 2-29
Installation .................................................................................................................... 2-29
PG Speed Control Card Terminals and Specifications................................................. 2-30
Wiring ........................................................................................................................... 2-32
Wiring Terminal Blocks................................................................................................. 2-36
Selecting the Number of PG (Encoder) Pulses ............................................................ 2-37
3 Digital Operator and Modes....................................................3-1
Digital Operator ............................................................................................ 3-2
Digital Operator Display ................................................................................................. 3-2
Digital Operator Keys ..................................................................................................... 3-2
Modes .......................................................................................................... 3-4
Inverter Modes ............................................................................................................... 3-4
Switching Modes ............................................................................................................ 3-5
Drive Mode ..................................................................................................................... 3-6
Quick Programming Mode.............................................................................................. 3-7
Advanced Programming Mode....................................................................................... 3-9
Verify Mode .................................................................................................................. 3-12
Autotuning Mode .......................................................................................................... 3-13
4 Trial Operation .........................................................................4-1
Trial Operation Procedure............................................................................ 4-2
Trial Operation Procedures .......................................................................... 4-3
Setting the Power Supply Voltage Jumper (400 V Class Inverters of 55 kW or Higher) 4-3
Power ON....................................................................................................................... 4-3
Checking the Display Status .......................................................................................... 4-4
Basic Settings................................................................................................................. 4-5
Settings for the Control Methods.................................................................................... 4-7
Autotuning ...................................................................................................................... 4-9
Application Settings...................................................................................................... 4-14
No-load Operation ........................................................................................................ 4-14
Loaded Operation......................................................................................................... 4-14
Check and Recording User Constants ......................................................................... 4-15
Adjustment Suggestions ............................................................................ 4-16
5 User Constants ........................................................................5-1
User Constant Descriptions.......................................................................... 5-2
Description of User Constant Tables .............................................................................. 5-2
Digital Operation Display Functions and Levels........................................... 5-3
User Constants Settable in Quick Programming Mode.................................................. 5-4
xi
User Constant Tables ...................................................................................5-8
A: Setup Settings............................................................................................................5-8
Application Constants: b...............................................................................................5-10
Autotuning Constants: C...............................................................................................5-20
Reference Constants: d................................................................................................5-26
Motor Constant Constants: E........................................................................................5-32
Option Constants: F......................................................................................................5-38
Terminal Function Constants: H ...................................................................................5-45
Protection Function Constants: L..................................................................................5-57
N: Special Adjustments.................................................................................................5-67
Digital Operator Constants: o........................................................................................5-70
T: Motor Autotuning ......................................................................................................5-74
U: Monitor Constants ....................................................................................................5-75
Factory Settings that Change with the Control Method (A1-02) ...................................5-83
Factory Settings that Change with the Inverter Capacity (o2-04) .................................5-86
6 Constant Settings by Function.............................................. 6-1
Frequency Reference...................................................................................6-2
Selecting the Frequency Reference Source...................................................................6-2
Using Multi-Step Speed Operation .................................................................................6-5
Run Command .............................................................................................6-7
Selecting the Run Command Source .............................................................................6-7
Stopping Methods.........................................................................................6-9
Selecting the Stopping Method when a Stop Command is Sent.....................................6-9
Using the DC Injection Brake........................................................................................6-13
Using an Emergency Stop ............................................................................................6-14
Acceleration and Deceleration Characteristics...........................................6-15
Setting Acceleration and Deceleration Times...............................................................6-15
Accelerating and Decelerating Heavy Loads (Dwell Function).....................................6-19
Preventing the Motor from Stalling During Acceleration (Stall Prevention During
Acceleration Function) ..................................................................................................6-20
Preventing Overvoltage During Deceleration (Stall Prevention During Deceleration
Function).......................................................................................................................6-22
Adjusting Frequency References ...............................................................6-24
Adjusting Analog Frequency References .....................................................................6-24
Operation Avoiding Resonance (Jump Frequency Function) .......................................6-27
Adjusting Frequency Reference Using Pulse Train Inputs ...........................................6-29
Speed Limit (Frequency Reference Limit Function) ...................................6-30
Limiting Maximum Output Frequency ...........................................................................6-30
Limiting Minimum Frequency........................................................................................6-30
Improved Operating Efficiency ...................................................................6-32
Reducing Motor Speed Fluctuation (Slip Compensation Function) ..............................6-32
Compensating for Insufficient Torque at Startup and Low-speed Operation
(Torque Compensation) ................................................................................................6-34
Hunting-prevention Function.........................................................................................6-36
xii
Stabilizing Speed (Speed Feedback Detection Function) ............................................ 6-37
Machine Protection .................................................................................... 6-38
Reducing Noise and Leakage Current ......................................................................... 6-38
Limiting Motor Torque (Torque Limit Function) ............................................................ 6-41
Preventing Motor Stalling During Operation ................................................................. 6-43
Changing Stall Prevention Level during Operation Using an Analog Input .................. 6-44
Detecting Motor Torque ................................................................................................ 6-44
Changing Overtorque and Undertorque Detection Levels Using an Analog Input ....... 6-48
Motor Overload Protection ........................................................................................... 6-49
Setting Motor Protection Operation Time ..................................................................... 6-51
Motor Overheating Protection Using PTC Thermistor Inputs ....................................... 6-52
Limiting Motor Rotation Direction ................................................................................. 6-54
Continuing Operation ................................................................................. 6-55
Restarting Automatically After Power Is Restored........................................................ 6-55
Speed Search............................................................................................................... 6-56
Continuing Operation at Constant Speed When Frequency Reference Is Lost ........... 6-62
Restarting Operation After Transient Error (Auto Restart Function) ............................ 6-63
Inverter Protection...................................................................................... 6-64
Performing Overheating Protection on Mounted Braking Resistors............................. 6-64
Reducing Inverter Overheating Pre-Alarm Warning Levels ......................................... 6-65
Input Terminal Functions ............................................................................ 6-66
Temporarily Switching Operation between Digital Operator and Control Circuit
Terminals ...................................................................................................................... 6-66
Blocking Inverter Outputs (Baseblock Commands)...................................................... 6-67
Stopping Acceleration and Deceleration (Acceleration/Deceleration Ramp Hold)....... 6-68
Raising and Lowering Frequency References Using Contact Signals (UP/DOWN) .... 6-69
Accelerating and Decelerating Constant Frequencies in the Analog References
(+/- Speed) ................................................................................................................... 6-72
Hold Analog Frequency Using User-set Timing ........................................................... 6-73
Switching Operations between a Communications Option Card and Control Circuit
Terminals ...................................................................................................................... 6-73
Jog Frequency Operation without Forward and Reverse Commands (FJOG/RJOG) . 6-74
Stopping the Inverter by Notifying Programming Device Errors to the Inverter
(External Fault Function) .............................................................................................. 6-75
Monitor Constants ...................................................................................... 6-76
Using the Analog Monitor Constants ............................................................................ 6-76
Using Pulse Train Monitor Contents............................................................................. 6-79
Individual Functions ...................................................................................6-81
Using MEMOBUS Communications............................................................................. 6-81
Using the Timer Function ............................................................................................. 6-93
Using PID Control......................................................................................................... 6-94
Energy-saving ............................................................................................................ 6-103
Setting Motor Constants............................................................................................. 6-105
Setting the V/f Pattern ................................................................................................ 6-107
Torque Control ........................................................................................................... 6-114
Speed Control (ASR) Structure .................................................................................. 6-122
xiii
Droop Control Function...............................................................................................6-127
Zero-servo Function....................................................................................................6-128
Digital Operator Functions........................................................................6-132
Setting Digital Operator Functions..............................................................................6-132
Copying Constants .....................................................................................................6-135
Prohibiting Writing Constants from the Digital Operator .............................................6-139
Setting a Password.....................................................................................................6-140
Displaying User-set Constants Only ...........................................................................6-141
Options .....................................................................................................6-142
Performing Speed Control with PG.............................................................................6-142
Using Digital Output Cards .........................................................................................6-146
Using an Analog Reference Card...............................................................................6-148
Using a Digital Reference Card ..................................................................................6-149
7 Troubleshooting ..................................................................... 7-1
Protective and Diagnostic Functions ............................................................7-2
Fault Detection................................................................................................................7-2
Alarm Detection ..............................................................................................................7-9
Operation Errors ...........................................................................................................7-13
Errors During Autotuning .............................................................................................7-15
Errors when Using the Digital Operator Copy Function................................................7-16
Troubleshooting..........................................................................................7-17
If Constant Constants Cannot Be Set ...........................................................................7-17
If the Motor Does Not Operate......................................................................................7-18
If the Direction of the Motor Rotation is Reversed........................................................7-19
If the Motor Does Not Put Out Torque or If Acceleration is Slow..................................7-20
If the Motor Operates Higher Than the Reference .......................................................7-20
If the Slip Compensation Function Has Low Speed Precision......................................7-20
If There is Low Speed Control Accuracy at High-speed Rotation in Open-loop Vector
Control Mode ................................................................................................................7-21
If Motor Deceleration is Slow........................................................................................7-21
If the Motor Overheats ..................................................................................................7-22
If There is Noise When the Inverter is Started or From an AM Radio...........................7-22
If the Ground Fault Interrupter Operates When the Inverter is Run..............................7-23
If There is Mechanical Oscillation.................................................................................7-23
If the Motor Rotates Even When Inverter Output is Stopped........................................7-24
If 0 V is Detected When the Fan is Started, or Fan Stalls.............................................7-24
If Output Frequency Does Not Rise to Frequency Reference ......................................7-24
8 Maintenance and Inspection.................................................. 8-1
Maintenance and Inspection.........................................................................8-2
Outline of Maintenance...................................................................................................8-2
Daily Inspection ..............................................................................................................8-2
Periodic Inspection .........................................................................................................8-2
xiv
Periodic Maintenance of Parts ....................................................................................... 8-3
Cooling Fan Replacement Outline ................................................................................. 8-4
Removing and Mounting the Control Circuit Terminal Card........................................... 8-6
9 Specifications ..........................................................................9-1
Standard Inverter Specifications .................................................................. 9-2
Specifications by Model.................................................................................................. 9-2
Common Specifications.................................................................................................. 9-4
Specifications of Options and Peripheral Devices ....................................... 9-5
10 Appendix ................................................................................10-1
Varispeed G7 Control Modes ..................................................................... 10-2
Control Modes and Features........................................................................................ 10-2
Control Modes and Applications................................................................................... 10-5
Inverter Application Precautions ................................................................ 10-7
Selection....................................................................................................................... 10-7
Installation .................................................................................................................... 10-8
Settings ........................................................................................................................ 10-8
Handling ....................................................................................................................... 10-9
Motor Application Precautions ................................................................. 10-10
Using the Inverter for an Existing Standard Motor...................................................... 10-10
Using the Inverter for Special Motors ......................................................................... 10-11
Power Transmission Mechanism (Speed Reducers, Belts, and Chains) ................... 10-11
Conformance to CE Markings .................................................................. 10-12
CE Markings............................................................................................................... 10-12
Requirements for Conformance to CE Markings........................................................ 10-12
User Constants......................................................................................... 10-19

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