YASKAWA Varispeed G7 Instruction Manual
YASKAWA
Varispeed G7
INSTRUCTION MANUAL
GENERAL PURPOSE INVERTER (ADVANCED VECTOR CONTROL)
MODEL: CIMR-G7B
200V CLASS 0.4 to 110kW (1.2 to 160kVA)
400V CLASS 0.4 to 300kW (1.4 to 460kVA)
Upon receipt of the product and prior to initial operation, read these instructions
thoroughly, and retain for future reference.
YASKAWA
MANUAL NO. TOEP C710616 13B
Copyright © 2007 YASKAWA ELECTRIC CORPORATION
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system,
or transmitted, in any form, or by any means, mechanical, electronic, photocopying, recording,
or otherwise, without the prior written permission of Yaskawa. No patent liability is assumed
with respect to the use of the information contained herein. Moreover, because Yaskawa is constantly striving to improve its high-quality products, the information contained in this manual is
subject to change without notice. Every precaution has been taken in the preparation of this
manual. Nevertheless, Yaskawa assumes no responsibility for errors or omissions. Neither is
any liability assumed for damages resulting from the use of the information contained in this
publication.
Preface
This manual is designed to ensure correct and suitable
application of Varispeed G7-Series Inverters. Read
this manual before attempting to install, operate, maintain, or inspect an Inverter and keep it in a safe, convenient location for future reference. Be sure you
understand all precautions and safety information
before attempting application.
General Precautions
• The diagrams in this manual may be indicated without covers or safety shields to show details.
Be sure to restore covers or shields before operating the Units and run the Units according to the
instructions described in this manual.
• Any illustrations, photographs, or examples used in this manual are provided as examples only
and may not apply to all products to which this manual is applicable.
• The products and specifications described in this manual or the content and presentation of the
manual may be changed without notice to improve the product and/or the manual.
• When ordering a new copy of the manual due to damage or loss, contact your Yaskawa representatives or the nearest Yaskawa sales office and provide the manual number shown on the front
cover.
• If nameplates become warn or damaged, order new ones from your Yaskawa representatives or
the nearest Yaskawa sales office.
i
Safety Information
IMPORTANT
WARNING
CAUTION
The following conventions are used to indicate precautions in this manual. Failure to heed precautions provided in this manual can result in serious or possibly even fatal injury or damage to
the products or to related equipment and systems.
Indicates precautions that, if not heeded, could possibly result in loss of life or serious injury.
Indicates precautions that, if not heeded, could result in relatively serious or minor injury, damage
to the product, or faulty operation.
Failure to heed a precaution classified as a caution can result in serious consequences depending
on the situation.
Indicates important information that should be memorized.
ii
Safety Precautions
CAUTION
CAUTION
WARNING
CAUTION
Confirmations upon Delivery
• Never install an Inverter that is damaged or missing components.
Doing so can result in injury.
Installation
• Always hold the case when carrying the Inverter.
If the Inverter is held by the front cover, the main body of the Inverter may fall, possibly resulting in injury.
• Attach the Inverter to a metal or other noncombustible material.
Fire can result if the Inverter is attached to a combustible material.
• Install a cooling fan or other cooling device when installing more than one Inverter in the same
enclosure so that the temperature of the air entering the Inverters is below 45°C.
Overheating can result in fires or other accidents.
Wiring
• Always turn OFF the input power supply before wiring terminals.
• Wiring must be performed by an authorized person qualified in electrical work.
• Be sure to ground the ground terminal. (200 V Class: Ground to 100 Ω or less, 400 V Class:
• Always check the operation of any emergency stop circuits after they are wired.
• Never touch the output terminals directly with your hands or allow the output lines to come into con-
• If the power supply is turned ON during the FWD (or REV) Run Command is given, the motor will
• When the 3-wire sequence is set, do not make the wiring for the control circuit unless the multi-
Otherwise, an electric shock or fire can occur.
Otherwise, an electric shock or fire can occur.
Ground to 10 Ω or less)
Otherwise, an electric shock or fire can occur.
Otherwise, there is the possibility of injury. (Wiring is the responsibility of the user.)
tact with the Inverter case. Never short the output circuits.
Otherwise, an electric shock or ground short can occur.
start automatically.
Turn the power supply ON after verifying that the RUN signal is OFF.
Failure to observe this warning may result in injury.
function input terminal constant is set.
Failure to observe this warning may result in injury.
• Check to be sure that the voltage of the main AC power supply satisfies the rated voltage of the
Inverter.
Injury or fire can occur if the voltage is not correct.
• Do not perform voltage withstand tests on the Inverter.
Otherwise, semiconductor elements and other devices can be damaged.
• Connect braking resistors, Braking Resistor Units, and Braking Units as shown in the I/O wiring
examples.
Otherwise, a fire can occur and the Inverter, braking resistors, Braking Resistor Units, and Braking Units can be damaged.
iii
• Tighten all terminal screws to the specified tightening torque.
CAUTION
WARNING
CAUTION
Otherwise, a fire may occur.
• Do not connect AC power to output terminals U, V, and W.
The interior parts of the Inverter will be damaged if voltage is applied to the output terminals.
• Do not connect phase-advancing capacitors or LC/RC noise filters to the output circuits.
The Inverter can be damaged or interior parts burnt if these devices are connected.
• Do not connect magnetic contactors to the output circuits.
If a load is connected while the Inverter is operating, surge current will cause the overcurrent protection circuit inside the
Inverter to operate.
Setting User Constants
• Disconnect the load (machine, device) from the motor before performing rotational autotuning.
The motor may turn, possibly resulting in injury or damage to equipment. Also, motor constants cannot be correctly set
with the motor attached to a load.
• Stay clear of the motor during rotational autotuning.
The motor repeats running and stopping until autotuning has been completed, possibly resulting in injury.
• In stationary autotuning 1, when the motor is first operated in the drive mode after tuning, the
remaining motor constants E2-02 (Motor rated slip) and E2-03 (Motor no-load current) are set automatically. To perform an operation immediately after stationary autotuning 1, use the following procedure under the recommended conditions.
(1) Check the values of E2-02 and E2-03 in verify mode or advanced programming mode.
(2) Run the motor once in drive mode under the following conditions.
• The Inverter and the motor are connected.
• The motor shaft is not locked with a mechanical brake or other stopping mechanism (or function).
• A motor-load ratio of 30% or less is maintained.
• A speed of 30% or more of the base frequency set at E1-06 (default = highest frequency) is maintained at
a constant speed for one second or more.
(3) After stopping the motor, check the values of E2-02 and E2-03 again in verify mode or advanced program-
ming mode. If the values of E2-02 and E2-03 differ from the ones before the first operation was carried out,
the settings have been successfully completed. Next, check if the values are suitable or not.
If the values of E2-02 and E2-03 differed greatly from the reference data of the motor in the test report or the instruction
manual (TOE-S616-60.1), hunting, motor vibrations, insufficient motor torque, or an overcurrent may occur because the
motor is operated although the aforementioned conditions have not been fulfilled after stationary autotuning 1. For elevators, failure to observe this caution may result in the cage falling or injury. If so, perform stationary autotuning 1 again and
run the motor using the aforementioned procedure under the recommended conditions or perform stationary autotuning 2
or rotational autotuning.
Usually the standard setting for E2-02 is 1 Hz to 3 Hz, and that for E2-03 is 30% to 65% of the rated current for a generalpurpose motor. Generally, the larger the motor capacity is, the smaller the rated slip and the ratio of the no-load current to
the rated current become. Use the data given in Factory Settings that Change with the Inverter Capacity (o2-04) of Chap-
ter 5 User Constants as a reference.
iv
Trial Operation
• Check to be sure that the front cover is attached before turning ON the power supply.
An electric shock may occur.
• Do not come close to the machine when the fault reset function is used. If the alarmed is cleared,
the machine may start moving suddenly.
Also, design the machine so that human safety is ensured even when it is restarted.
Injury may occur.
• Provide a separate emergency stop switch; the Digital Operator STOP Key is valid only when its
function is set.
Injury may occur.
• Reset alarms only after confirming that the RUN signal is OFF.
CAUTION
WARNING
WARNING
Injury may occur.
• Don't touch the radiation fins (heatsink), braking resistor, or Braking Resistor Unit. These can
become very hot.
Otherwise, a burn injury may occur.
• Be sure that the motor and machine is within the applicable ranges before starting operation.
Otherwise, an injury may occur.
• Provide a separate holding brake if necessary.
Always construct the external sequence to confirm that the holding brake is activated in the event
of an emergency, a power failure, or an abnormality in the Inverter.
Failure to observe this caution can result in injury.
• If using an Inverter with an elevator, take safety measures on the elevator to prevent the elevator
from dropping.
Failure to observe this caution can result in injury.
• Don't check signals while the Inverter is running.
Otherwise, the equipment may be damaged.
• Be careful when changing Inverter settings. The Inverter is factory set to suitable settings. For the
Inverters in the 400 V class of 55 kW or more, however, select the correct power supply voltage
jumper according to the input voltage.
Otherwise, the equipment may be damaged.
Maintenance and Inspection
• Do not touch the Inverter terminals. Some of the terminals carry high voltages and are extremely
dangerous.
Doing so can result in electric shock.
• Always have the protective cover in place when power is being supplied to the Inverter. When
attaching the cover, always turn OFF power to the Inverter through the MCCB.
Doing so can result in electric shock.
• After turning OFF the main circuit power supply, wait until the CHARGE indicator light goes out
before performing maintenance or inspections.
The capacitor will remain charged and is dangerous.
• Maintenance, inspection, and replacement of parts must be performed only by authorized personnel.
Remove all metal objects, such as watches and rings, before starting work. Always use grounded tools.
Failure to heed these warning can result in electric shock.
• Provide a separate holding brake if necessary.
Always make any adjustments other than those involving the operation of the Inverter with the holding brake released.
Failure to observe this caution may result in injury.
• If using an Inverter with an elevator, take safety measures on the elevator to prevent the elevator
from dropping.
Failure to observe this caution can result in injury.
v
Other
CAUTION
WARNING
CAUTION
• A CMOS IC is used in the control board. Handle the control board and CMOS IC carefully.
The CMOS IC can be destroyed by static electricity if touched directly.
• Do not change the wiring, or remove connectors or the Digital Operator, during operation.
Doing so can result in personal injury.
• Do not attempt to modify or alter the Inverter.
Doing so can result in electrical shock or injury.
• Do not subject the Inverter to halogen gases, such as fluorine, chlorine, bromine, and iodine, at any
time even during transportation or installation.
Otherwise, the Inverter can be damaged or interior parts burnt.
vi
Warning Information and Position
Illustration shows the CIMR-G7B20P4
Warning
information
position
Illustration shows the CIMR-G7B2018
Warning
information
position
!
WARNING
Risk of electric shock.
yRead manual before installing.
yWait 5 minutes for capacitor discharge
after disconnecting power supply.
!
AVERTISSEMENT
y
y
!
There is warning information on the Inverter in the position shown in the following illustration.
Always heed the warnings.
Warning Information
vii
Warranty Information
Free Warranty Period and Scope
Warranty Period
This product is warranted for twelve months after being delivered to Yaskawa’s customer or if
applicable eighteen months from the date of shipment from Yaskawa’s factory whichever comes
first.
Scope of Warranty
Inspections
Periodic inspections must be conducted by the customer. However, upon request, Yaskawa or
one of Yaskawa’s Service Centers can inspect the product for a fee. In this case, if after conferring with the customer, a Yaskawa product is found to be defective due to Yaskawa workmanship or materials and the defect occurs during the warranty period, then this fee will be waived
and the problem remedied free of charge.
Repairs
If a Yaskawa product is found to be defective due to Yaskawa workmanship or materials and the
defect occurs during the warranty period, Yaskawa will provide a replacement, repair the defective product, and provide shipping to and from the site free of charge.
However, if the Yaskawa Authorized Service Center determines that the problem with a
Yaskawa product is not due to defects in Yaskawa’s workmanship or materials, then the customer will be responsible for the cost of any necessary repairs. Some problems that are outside
the scope of this warranty are:
• Problems due to improper maintenance or handling, carelessness, or other reasons where the
customer is determined to be responsible.
• Problems due to additions or modifications made to a Yaskawa product without Yaskawa’s
understanding.
• Problems due to the use of a Yaskawa product under conditions that do not meet the recom-
mended specifications.
• Problems caused by natural disaster or fire.
• Or other problems not due to defects in Yaskawa workmanship or materials.
Warranty service is only applicable within Japan.
However, after-sales service is available for customers outside of Japan for a reasonable fee.
Contact your local Yaskawa representative for more information.
Exceptions
Any inconvenience to the customer or damage to non-Yaskawa products due to Yaskawa's
defective products whether within or outside the warranty period are NOT covered by this warranty.
Restrictions
• The Varispeed G7 was not designed or manufactured for use in devices or systems that may
directly affect or threaten human lives or health.
• Customers who intend to use the product described in this manual for devices or systems
relating to transportation, health care, space aviation, atomic or electric power, or underwater
use must contact their Yaskawa representatives or the nearest Yaskawa sales office beforehand.
• This product has been manufactured under strict quality-control guidelines. However, if this
product is to be installed in any location where failure of this product could involve or result
in a life-and-death situation or loss of human life or in a facility where failure may cause a
serious accident or physical injury, safety devices must be installed to minimize the likelihood
of any accident.
viii
Registered Trademarks
The following registered trademarks are used in this manual.
• DeviceNet is a registered trademark of the ODVA (Open DeviceNet Vendors Association,
Inc.).
• InterBus is a registered trademark of Phoenix Contact Co.
• ControlNet is a registered trademark of ControlNet International, Ltd.
• LONWORKS is a registered trademark of the Echelon.
ix
Contents
Safety Information ............................................................................................ii
Safety Precautions ..........................................................................................iii
Warning Information and Position ..................................................................vii
Warranty Information..................................................................................... viii
Registered Trademarks...................................................................................ix
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 ..............................................................1-6
Open Chassis Inverters (IP00) ....................................................................................... 1-6
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 ....................................................................................... 1-12
Removing/Attaching the Digital Operator and Front Cover........................1-13
Inverters of 15 kW or Less ...........................................................................................1-13
Inverters of 18.5 kW or More........................................................................................ 1-16
Removing and Attaching the Protection Cover ..........................................1-17
Removing the Protection Cover ................................................................................... 1-17
Attaching the Protection Cover..................................................................................... 1-18
2 Wiring .......................................................................................2-1
Connections to Peripheral Devices .............................................................. 2-2
x
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 ...................................................................................2-13
Main Circuit Configurations...........................................................................................2-14
Standard Connection Diagrams....................................................................................2-15
Wiring the Main Circuits................................................................................................2-16
Wiring Control Circuit Terminals .................................................................2-22
Wire Sizes and Closed-loop Connectors ...................................................................... 2-22
Control Circuit Terminal Functions ...............................................................................2-24
Control Circuit Terminal Connections ........................................................................... 2-28
Control Circuit Wiring Precautions................................................................................2-29
Wiring Check ..............................................................................................2-30
Checks..........................................................................................................................2-30
Installing and Wiring Option Boards ...........................................................2-31
Option Board Models and Specifications......................................................................2-31
Installation.....................................................................................................................2-32
PG Speed Control Board Terminals and Specifications................................................ 2-33
Wiring............................................................................................................................2-35
Wiring Terminal Blocks.................................................................................................2-38
Selecting the Number of PG (Encoder) Pulses ............................................................2-39
3 Digital Operator and Modes................................................... 3-1
Digital Operator ............................................................................................3-2
Digital Operator Display..................................................................................................3-2
Digital Operator Keys......................................................................................................3-2
Modes...........................................................................................................3-5
Inverter Modes................................................................................................................3-5
Switching Modes.............................................................................................................3-6
Drive Mode .....................................................................................................................3-7
Quick Programming Mode ..............................................................................................3-8
Advanced Programming Mode .....................................................................................3-10
Verify Mode...................................................................................................................3-13
Autotuning Mode...........................................................................................................3-14
4 Trial Operation ........................................................................ 4-1
Overview of 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 ......................................................................................................4-16
No-load Operation ........................................................................................................4-16
xi
Loaded Operation......................................................................................................... 4-16
Check and Recording User Constants ......................................................................... 4-17
Adjustment Suggestions ............................................................................ 4-18
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
User Constant Tables ................................................................................... 5-8
A: Setup Settings............................................................................................................ 5-8
b: Application Constants............................................................................................... 5-10
C: Autotuning Constants .............................................................................................. 5-21
d: Reference Constants................................................................................................ 5-27
E: Motor Constant Constants ....................................................................................... 5-33
F: Option Constants ..................................................................................................... 5-38
H: Terminal Function Constants................................................................................... 5-45
L: Protection Function Constants ................................................................................. 5-57
N: Special Adjustments ................................................................................................ 5-68
o: Digital Operator Constants ....................................................................................... 5-72
T: Motor Autotuning...................................................................................................... 5-76
U: Monitor Constants.................................................................................................... 5-77
Factory Settings that Change with the Control Method (A1-02)................................... 5-86
Factory Settings that Change with the Inverter Capacity (o2-04)................................. 5-89
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
Varispeed G7 Function Block......................................................................................... 6-8
Run Command ........................................................................................... 6-10
Selecting the Run Command Source ........................................................................... 6-10
Stopping Methods ...................................................................................... 6-12
Selecting the Stopping Method when a Stop Command is Sent .................................. 6-12
Using the DC Injection Brake ....................................................................................... 6-16
Using an Emergency Stop............................................................................................ 6-17
Acceleration and Deceleration Characteristics ..........................................6-18
Setting Acceleration and Deceleration Times............................................................... 6-18
Accelerating and Decelerating Heavy Loads (Dwell Function) .................................... 6-22
Preventing the Motor from Stalling During Acceleration (Stall Prevention During
Acceleration Function).................................................................................................. 6-23
Preventing Overvoltage During Deceleration (Stall Prevention During Deceleration
Function) ...................................................................................................................... 6-25
Preventing Overvoltage by Automatically Reducing the Regenerative Torque Limit
(Overvoltage Inhibit Function) ...................................................................................... 6-26
xii
Adjusting Frequency References ...............................................................6-28
Adjusting Analog Frequency References .....................................................................6-28
Operation Avoiding Resonance (Jump Frequency Function) .......................................6-31
Adjusting Frequency Reference Using Pulse Train Inputs ...........................................6-33
Speed Limit (Frequency Reference Limit Function) ...................................6-34
Limiting Maximum Output Frequency ...........................................................................6-34
Limiting Minimum Frequency........................................................................................6-34
Improved Operating Efficiency ...................................................................6-36
Reducing Motor Speed Fluctuation (Slip Compensation Function) ..............................6-36
Compensating for Insufficient Torque at Startup and Low-speed Operation
(Torque Compensation) ................................................................................................6-38
Hunting-prevention Function.........................................................................................6-40
Stabilizing Speed (Speed Feedback Detection Function) ............................................6-41
Machine Protection.....................................................................................6-42
Reducing Noise and Leakage Current..........................................................................6-42
Limiting Motor Torque (Torque Limit Function).............................................................6-46
Preventing Motor Stalling During Operation .................................................................6-49
Changing Stall Prevention Level during Operation Using an Analog Input .................. 6-50
Using Frequency Detection: L4-01 to L4-05 .................................................................6-50
Detecting Motor Torque ................................................................................................6-53
Changing Overtorque and Undertorque Detection Levels Using an Analog Input ....... 6-56
Motor Overload Protection............................................................................................6-57
Setting Motor Protection Operation Time......................................................................6-59
Motor Overheating Protection Using PTC Thermistor Inputs........................................6-60
Limiting Motor Rotation Direction..................................................................................6-62
Continuing Operation..................................................................................6-63
Restarting Automatically After Power Is Restored........................................................6-63
Speed Search ...............................................................................................................6-64
Continuing Operation at Constant Speed When Frequency Reference Is Lost............6-71
Restarting Operation After Transient Fault (Auto Restart Function).............................6-72
Operation Selection After Cooling Fan Fault ................................................................6-73
Inverter Protection ......................................................................................6-74
Performing Overheating Protection on Mounted Braking Resistors ............................. 6-74
Reducing Inverter Overheating Pre-Alarm Warning Levels..........................................6-75
Input Terminal Functions ............................................................................6-76
Temporarily Switching Operation between Digital Operator and Control Circuit
Terminals ......................................................................................................................6-76
Blocking Inverter Outputs (Baseblock Commands) ......................................................6-77
Stopping Acceleration and Deceleration (Acceleration/Deceleration Ramp Hold) .......6-78
Raising and Lowering Frequency References Using Contact Signals (UP/DOWN).....6-79
Accelerating and Decelerating Constant Frequencies in the Analog References
(+/- Speed)....................................................................................................................6-82
Hold Analog Frequency Using User-set Timing............................................................6-83
Switching Operations between a Communications Option Board and Control
Circuit Terminals ...........................................................................................................6-83
xiii
Jog Frequency Operation without Forward and Reverse Commands
(FJOG/RJOG) .............................................................................................................. 6-84
Stopping the Inverter by Notifying Programming Device Errors to the Inverter
(External Fault Function) .............................................................................................. 6-85
Output Terminal Functions ......................................................................... 6-86
Monitor Constants ...................................................................................... 6-88
Using the Analog Monitor Constants............................................................................ 6-88
Using Pulse Train Monitor Contents............................................................................. 6-90
Individual Functions ................................................................................... 6-92
Using MEMOBUS Communications............................................................................. 6-92
Using the Timer Function ........................................................................................... 6-105
Using PID Control....................................................................................................... 6-106
Energy-saving ............................................................................................................ 6-115
Setting Motor Constants............................................................................................. 6-117
Setting the V/f Pattern ................................................................................................ 6-120
Torque Control ........................................................................................................... 6-127
Speed Control (ASR) Structure .................................................................................. 6-136
Increasing the Speed Reference Response (Feed Forward Control) ........................ 6-142
Droop Control Function .............................................................................................. 6-143
Zero-servo Function ................................................................................................... 6-145
Digital Operator Functions........................................................................6-148
Setting Digital Operator Functions ............................................................................. 6-148
Copying Constants ..................................................................................................... 6-151
Prohibiting Writing Constants from the Digital Operator............................................. 6-156
Setting a Password .................................................................................................... 6-156
Displaying User-set Constants Only........................................................................... 6-157
Options.....................................................................................................6-158
Performing Speed Control with PG ............................................................................ 6-158
Using Digital Output Boards ....................................................................................... 6-162
Using an Analog Reference Board ............................................................................. 6-164
Using a Digital Reference Board ................................................................................ 6-165
Using Inverters for Elevating Machines.................................................... 6-170
Brake ON/OFF Sequence .......................................................................................... 6-170
Stall Prevention during Deceleration .......................................................................... 6-172
Autotuning ..................................................................................................................6-172
Braking Resistor Overheating Protection ................................................................... 6-172
Momentary Power Loss Restart ................................................................................. 6-172
Torque Limit................................................................................................................ 6-172
I/O Open-phase Protection and Overtorque Detection .............................................. 6-173
External Baseblock Signal.......................................................................................... 6-173
Acceleration/Deceleration Time.................................................................................. 6-173
Magnetic Contactor on the Inverter’s Output-side...................................................... 6-173
Control-related Adjustments....................................................................................... 6-174
Reducing Shock during Elevating Machine Start, Stop, Acceleration, and
Deceleration ............................................................................................................... 6-176
xiv
Confirming Startup Current and Reducing Carrier Frequency.................................... 6-179
Overvoltage Inhibit Function.......................................................................................6-180
Current Alarm Function ............................................................................6-181
Peak Hold Current Monitoring Function ...................................................6-182
Maintenance Timer Display Function .......................................................6-183
Settings Required to Use Maintenance Timer Display Function.................................6-183
Settings Required After Replacement of Cooling Fan or Electrolytic Capacitor ......... 6-184
7 Troubleshooting ..................................................................... 7-1
Protective and Diagnostic Functions ............................................................7-2
Fault Detection................................................................................................................7-2
Alarm Detection ............................................................................................................7-15
Operation Errors ...........................................................................................................7-19
Errors During Autotuning .............................................................................................7-21
Errors when Using the Digital Operator Copy Function................................................7-22
Troubleshooting..........................................................................................7-24
If Constant Constants Cannot Be Set...........................................................................7-24
If the Motor Does Not Operate......................................................................................7-25
If the Direction of the Motor Rotation is Reversed........................................................7-28
If the Motor Does Not Put Out Torque or If Acceleration is Slow ..................................7-28
If the Motor Operates Higher Than the Reference .......................................................7-28
If the Slip Compensation Function Has Low Speed Precision......................................7-29
If There is Low Speed Control Accuracy at High-speed Rotation in Open-loop
Vector Control Method..................................................................................................7-29
If Motor Deceleration is Slow........................................................................................7-29
If the Motor Overheats..................................................................................................7-30
If There is Noise When the Inverter is Started or From an AM Radio .......................... 7-31
If the Ground Fault Interrupter Operates When the Inverter is Run..............................7-31
If There is Mechanical Oscillation.................................................................................7-31
If the Torque Generated for the Motor is Insufficient (Insufficient Power).....................7-33
If the Torque Reference (U1-09) at Low Speeds in Open-loop Vector 2 Control is
Large Compared to That at Medium and High Speeds ................................................7-33
If Shock Occurs Near the Speed Estimator Switching Frequency in Open-loop
Vector 2 Control ............................................................................................................7-33
If Torque Ripple Occurs at Very Low Speeds in Open-loop Vector 2 Control ...............7-34
If the Motor Rotates Even When Inverter Output is Stopped........................................7-34
If OV is Detected When the Fan is Started, or Fan Stalls.............................................7-34
If Output Frequency Does Not Rise to Frequency Reference ......................................7-34
Acoustic Noise From the Motor ....................................................................................7-35
8 Maintenance and Inspection.................................................. 8-1
Maintenance and Inspection.........................................................................8-2
Outline of Warranty.........................................................................................................8-2
Daily Inspection ..............................................................................................................8-2
xv
Periodic Inspection ......................................................................................................... 8-2
Periodic Maintenance of Parts ....................................................................................... 8-3
Procedure for Adjusting Constants after Replacement of Control Board .......................8-3
Types and Number of Cooling Fans Used in the Drive .................................................. 8-5
Cooling Fan Replacement Outline ................................................................................. 8-6
Circulation Fan Replacement Outline........................................................................... 8-16
Removing and Mounting the Control Circuit Terminal Board ....................................... 8-21
9 Specifications ..........................................................................9-1
Standard Inverter Specifications...................................................................9-2
Specifications by Model.................................................................................................. 9-2
Common Specifications.................................................................................................. 9-4
Specifications of Options and Peripheral Devices........................................ 9-6
10 Appendix ................................................................................10-1
Varispeed G7 Control Methods .................................................................. 10-2
Control Methods and Features..................................................................................... 10-2
Control Methods and Applications................................................................................ 10-4
Inverter Application Precautions ................................................................10-6
Selection....................................................................................................................... 10-6
Installation .................................................................................................................... 10-7
Settings ........................................................................................................................ 10-7
Handling ....................................................................................................................... 10-8
Motor Application Precautions ...................................................................10-9
Using the Inverter for an Existing Standard Motor........................................................ 10-9
Using the Inverter for Special Motors ......................................................................... 10-10
Power Transmission Mechanism (Speed Reducers, Belts, and Chains) ................... 10-10
Conformance to UL Standard................................................................... 10-11
Conformance to CE Markings .................................................................. 10-13
CE Markings............................................................................................................... 10-13
Requirements for Conformance to CE Markings........................................................ 10-13
Wiring Examples ......................................................................................10-20
Using a Braking Resistor Unit .................................................................................... 10-20
Using a Braking Unit and Braking Resistor Unit ......................................................... 10-21
Using Braking Units in Parallel ................................................................................... 10-22
Using a Braking Unit and Three Braking Resistor Units in Parallel ............................ 10-23
Using a VS Operator .................................................................................................. 10-24
Using Transistors for Input Signals and a 0-V Common in Sinking Mode with an
Internal Power Supply ................................................................................................ 10-25
Using Transistors for Input Signals and a +24-V Common in Sourcing Mode ........... 10-26
Using Transistors for Input Signals and a 0-V Common in Sinking Mode with an
External Power Supply ............................................................................................... 10-27
Using Contact and Open Collector Outputs ............................................................... 10-28
xvi
User Constants.........................................................................................10-29
INDEX
Revision History
xvii
Handling Inverters
This chapter describes the checks required upon receiving or installing an Inverter.
Varispeed G7 Introduction ...........................................1-2
Confirmations upon Delivery........................................1-3
Exterior and Mounting Dimensions..............................1-6
Checking and Controlling the Installation Site .............1-9
Installation Orientation and Space .............................1-10
Removing and Attaching the Terminal Cover ............ 1-11
Removing/Attaching the Digital Operator and Front
Cover .........................................................................1-13
Removing and Attaching the Protection Cover..........1-17
Varispeed G7 Introduction
Varispeed G7 Models
The Varispeed-G7 Series of Inverters included two Inverters in two voltage classes: 200 V and 400 V. Maximum
motor capacities vary from 0.4 to 300 kW (41 models).
Table 1.1 Varispeed G7 Models
Voltage
Class
200 V Class
400 V Class
Maximum
Motor
Capacity
kW
0.4 1.2 CIMR-G7B20P4
0.75 2.3 CIMR-G7B20P7 20P71
1.5 3.0 CIMR-G7B21P5 21P51
2.2 4.6 CIMR-G7B22P2 22P21
3.7 6.9 CIMR-G7B23P7 23P71
5.5 10 CIMR-G7B25P5 25P51
7.5 13 CIMR-G7B27P5 27P51
11 19 CIMR-G7B2011 2011
15 25 CIMR-G7B2015 20151
18.5 30 CIMR-G7B2018 20180 20181
22 37 CIMR-G7B2022 20220 20221
30 50 CIMR-G7B2030 20300 20301
37 61 CIMR-G7B2037 20370 20371
45 70 CIMR-G7B2045 20450 20451
55 85 CIMR-G7B2055 20550 20551
75 110 CIMR-G7B2075 20750 20751
90 140 CIMR-G7B2090 20900 -
110 160 CIMR-G7B2110 21100 -
0.4 1.4 CIMR-G7B40P4
0.75 2.6 CIMR-G7B40P7 40P71
1.5 3.7 CIMR-G7B41P5 41P51
2.2 4.7 CIMR-G7B42P2 42P21
3.7 6.9 CIMR-G7B43P7 43P71
5.5 11 CIMR-G7B45P5 45P51
7.5 16 CIMR-G7B47P5 47P51
11 21 CIMR-G7B4011 40111
15 26 CIMR-G7B4015 40151
18.5 32 CIMR-G7B4018 40180 401
22 40 CIMR-G7B4022 40220 40221
30
37 61 CIMR-G7B4037 40370 40371
45 74 CIMR-G7B4045 40450 40451
55 98 CIMR-G7B4055 40550 40551
75 130 CIMR-G7B4075 40750 40751
90 150 CIMR-G7B4090 40900 40901
110 180 CIMR-G7B4110 41100 41101
132 210 CIMR-G7B4132 41320 41321
160 250 CIMR-G7B4160 41600 41601
185 280 CIMR-G7B4185 41850 -
220 340 CIMR-G7B4220 42200 -
300 460 CIMR-G7B4300 43000 -
Output
Capacity
kVA
50 CIMR-G7B4030 40300 40301
Varispeed G7
Basic Model Number
(Always specify through the protective structure when ordering.)
Open Chassis
(IEC IP00)
CIMR-G7B
Remove the top and bottom cov-
ers from the Enclosed Wall-
mounted model.
Remove the top and bottom cov-
ers from the Enclosed Wall-
mount model.
Specifications
Enclosed Wall-mounted
[IEC IP20, NEMA 1 (Type 1)]
CIMR-G7B
20P41
40P41
81
1-2
Confirmations upon Delivery
Inverter model
Input specifications
Output
specifications
Lot number
Serial number
Input specifications
Inverter
specifications
Mass
G
3030
Version of software
UL FILE NO.: E131457
UL file number
O/N :
S/N :
B
A
Checks
Check the following items as soon as the Inverter is delivered.
Table 1.2 Checks
Item Method
Has the correct model of Inverter been
delivered?
Check the model number on the nameplate on the side of the Inverter.
Confirmations upon Delivery
Is the Inverter damaged in any way?
Are any screws or other components
loose?
Inspect the entire exterior of the Inverter to see if there are any scratches or
other damage resulting from shipping.
Use a screwdriver or other tools to check for tightness.
If you find any irregularities in the above items, contact the agency from which you purchased the Inverter or
your Yaskawa representative immediately.
Nameplate Information
There is a nameplate attached to the side of each Inverter. The nameplate shows the model number, specifications, lot number, serial number, and other information on the Inverter.
Example Nameplate
The following nameplate is an example for a standard domestic (Japan) Inverter: 3-phase, 200 VAC, 0.4 kW,
IEC IP20 and NEMA 1 (Type 1) standards
Fig 1.1 Nameplate
1-3
Inverter Model Numbers
TERMS
CIMR - G7 B 2 0P4
Inverter
Varispeed G7
No.
B
China domestic model
Specification
No.
2
4
AC input, 3-phase, 200 V
AC input, 3-phase, 400 V
Voltage Class
No.
0P4
0P7
300
0.4 kW
0.75 kW
300 kW
Max. Motor Capacity
"P" indicates the decimal point.
*
to
to
The model number of the Inverter on the nameplate indicates the specification, voltage class, and maximum
motor capacity of the Inverter in alphanumeric codes.
Fig 1.2 Inverter Model Numbers
Inverter Specifications
The Inverter specifications (“SPEC”) on the nameplate indicate the voltage class, maximum motor capacity,
the protective structure, and the revision of the Inverter in alphanumeric codes.
2 0P4 1 A
No.
2
4
Voltage Class
AC input, 3-phase, 200 V
AC input, 3-phase, 400 V
Design revision order
No.
0P4
0P7
300
"P" indicates the decimal point.
Max. Motor Capacity
to
0.4 kW
0.75 kW
to
300 kW
*
No.
0
1
Protective Structure
Open chassis (IEC IP00)
Enclosed wall-mounted [IEC IP20,
NEMA 1 (Type 1)]
Fig 1.3 Inverter Specifications
Open Chassis Type (IEC IP00)
Protected so that parts of the human body cannot reach electrically charged parts from the front when the
Inverter is mounted in a control panel.
Enclosed Wall-mounted Type [IEC IP20, NEMA 1 (Type 1)]
The Inverter is structured so that the Inverter is shielded from the exterior, and can thus be mounted to the
interior wall of a standard building (not necessarily enclosed in a control panel). The protective structure conforms to the standards of NEMA 1 (Type 1) in the USA. The protective covers (see Fig. 1.4) are required for
an IEC IP20 or NEMA 1 (Type 1) protective structure.
1-4
Confirmations upon Delivery
Inverter cover
Mounting
hole
Cooling
fan
Nameplate
Front cover
Digital
Operator
Terminal
cover
Top protective cover
Bottom protective cover
15 kW or Less 18.5 kW or More
Mounting hole
Front
cover
Digital
Operator
Terminal
cover
Diecast case
Nameplate
Control circuit
terminals
Charge indicator
Main circuit
terminals
Charge indicator
Ground terminal
15 kW or Less
18.5 kW or More
Component Names
The external appearance and component names of the Inverter are shown in Fig 1.4. The Inverter with the terminal cover removed is shown in Fig 1.5.
Fig 1.4 Inverter Appearance
Fig 1.5 Terminal Arrangement
1-5
Exterior and Mounting Dimensions
W
W1
3
H1H2DH
D1
4-d
t1
6-d
t1
D1
D
W1
W1
W
W3
W2
H
H2 H1
200 V Class Inverters of 18.5 to 110 kW
400 V Class Inverters of 18.5 to 160 kW
W
W1
4-d
H2
(5)
D1
D
H1
H
t1
(5)*
(5)*
200 V/400 V Class Inverters of 0.4 to 15 kW
400 V Class Inverters of 185 to 300 kW
* (10) for 200 V Class Inverters of 30 to 110 kW or
400 V Class Inverters of 55 to 160 kW.
Open Chassis Inverters (IP00)
Exterior diagrams of the Open Chassis Inverters are shown below.
1-6
Fig 1.6 Exterior Diagrams of Open Chassis Inverters
Exterior and Mounting Dimensions
W
W1
3
H1H2DH0
D1
H3
4 H
4-d
t1
200 V Class Inverters of 18.5 to 75 kW
400 V Class Inverters of 18.5 to 160 kW
W
W1
H3
H0
H1
H2
D1
D(5)
4-d
t1
(5)*(5)*
H
Grommet
Max.10
200 V/400 V Class Inverters of 0.4 to 15 kW
* (7.5) for 200 V Class Inverters of 30 to 75 kW or 400 V
Class Inverters of 55 to 160 kW.
Enclosed Wall-mounted Inverters [NEMA1 (Type 1)]
Exterior diagrams of the Enclosed Wall-mounted Inverters [NEMA1 (Type 1)] are shown below.
Fig 1.7 Exterior Diagrams of Enclosed Wall-mounted Inverters
1-7
Table 1.3 200 VAC and 400 VAC (0.4 kW to 300 kW) Inverter Dimensions (mm) and Masses (kg)
Max.
Appli-
Voltage
cable
Class
Motor
Output
W H D W1H1H2D1 t1
[kW]
0.4
0.75 43 42 85
140 280
1.5 58 47 105
2.2
3.7 122 64 186
5.5
200 300 197 186 285 8 65.5
7.5 7 7 263 112 375
11
240 350 207 216 335
200 V
(3-phase)
15 380 30 473 174 647
18.5 250 400
22 275 450 220 435 24 279 615 220 450 435 165 27 679 257 936
30
375 600
37 328
45
450 725 348 325 700
55 87 95 1474 607 2081
75 500 850 358 370 820
90
575 885 378 445 855 140 150 ---
110 2389 1194 3583
0.4
0.75 21 44 65
1.5
140 280
2.2 41 49 90
3.7 76 64 140
5.5
200 300 197 186 285 8 65.5
7.5 198 106 304
11
240 350 207 216 335
15 311 135 446
18.5
275 450 258 220 435 100 26 279 535 258 220 450 435
400 V
(3-phase)
22 516 210 726
30
325 550 283 260 535 105 37 329
37 737 285 1022
45 715 165 40 929 340 1269
55
450 725 348 325 700 12.5
75 91 99 1554 596 2150
90
500 850 358 370 820 15
110 127 137 2299 928 3227
132
575 916 378 445 855 46 140
160 175 185 3614 1501 5115
185
300
* Same for Open Chassis and Enclosed Wall-mounted Inverters.
Open Chassis (IP00) Enclosed Wall-mounted [NEMA1 (Type 1)]
157
126 266 7
39
5
177 59 4 177 59 4
2.3
78 11 240
7.5
12.5
100
100
3.2
258
298
195 385
250 575
130
15 4.5
157
6 266 7
12
39
5
177 59 4.5 177 59 4.5
78 10 240 350 207 216 350 335
2.3
7.5
3.2
130
4.5
Dimensions (mm)
Approx.
W H D W1H0H1H2H3D1 t1
Mass
3
140 280
157
126 280 266 7
Approx.
Mass
39
5
0
6
200 300 197 186 300 285 8 65.5
350
207 216 350 335
21 254 535
57
380 809
63 328
86
453 1027 348 325 725 700 302
195 400 385 135
258
298
250 600 575
7.5
209
12.5
2.3
78 11
100
3.2
130
108 504 1243 358 370 850 820 15 393 4.5 114
3.5
140 280
157
126 280 266 7
39
3.5
5
0
7 200 300 197 186 300 285 8 65.5
78 10
2.3
7.5
635
283 260 550 535 105
90
453 1027 348 325 725 700 12.5 302
109
504 1243 358 370 850 820 15 393
165
579 1324 378 445 916 855 46 408 140
100 29
85
130
3.2
127
4.5
175 2612 1105 3717
See Table 1.4220
Heat Genera-
tion (W)
Tot a l
Mount-
ing
Holes
d*
Exter
nal
Inter-
nal
Heat
Gen-
eration
21 36 57
3
M5
83 53 136
6
187 87 274
357 136 493
M6
24 599 242 839
62
68 1080 434 1514
94 1291 510 1801
878 362 1240
M10
2009 823 2832
M12
1660 871 2531
10
39 49
M5
33 46 79
132 79 211
7
246 116 362
M6
354 174 528
39
98
633 246 879
1239 488 1727
M10
1928 762 2690
M12
Cooling
Method
Natu-
ral
Fan
Natu-
ral
Fan
1-8
Voltage
Class
400 V
(3-phase)
Table 1.4 400 VAC (185 to 300 kW) Inverter Dimensions (mm) and Masses (kg)
Max.
Applicable
Motor
WHDW1W2W3H1H2D1t1
Output
[kW]
185
710 1305 413 540 240 270 1270 15 125.5 4.5
300 916 1475 413 730 365 365 1440 15 125.5 4.5 415 6749 2941 9690
Open Chassis (IP00) Enclosed Wall-mounted [NEMA (Type1)]
Dimensions (mm) Heat Generation (W)
Mount-
Exter-
Approx.
WHDW1W2W3H1H2D1 t1
Mass
260
--- M12
Approx.
Mass
ing
Holes
d*
Inter-
nal
nal
4436 1994 6430
Tot al
Heat
Gener-
ation
Cooling
Method
Fan220 280 5329 2205 7534
Checking and Controlling the Installation Site
Checking and Controlling the Installation Site
Install the Inverter in the installation site described below and maintain optimum conditions.
Installation Site
Install the Inverter under the following conditions and a pollution level of 2 or less (UL standard).
Table 1.5 Installation Site
Type Ambient Operating Temperature Humidity
Enclosed wall-mounted -10 to + 40 °C 95% RH or less (no condensation)
Open chassis -10 to + 45 °C 95% RH or less (no condensation)
Protection covers are attached to the top and bottom of the Inverter. Be sure to remove the protection covers
before installing a 200 or 400 V Class Inverter with an output of 15 kW or less in a panel. Refer to Page 1-17
on how to remove the protection covers.
Observe the following precautions when mounting the Inverter.
• Install the Inverter in a clean location free from oil mist and dust. It can be installed in a totally enclosed
panel that is completely shielded from floating dust.
• When installing or operating the Inverter, always take special care so that metal powder, oil, water, or other
foreign matter does not get into the Inverter.
• Do not install the Inverter on combustible material, such as wood.
• Install the Inverter in a location free from radioactive materials and combustible materials.
• Install the Inverter in a location free from harmful gasses and liquids.
• Install the Inverter in a location without excessive oscillation.
• Install the Inverter in a location free from chlorides.
• Install the Inverter in a location not in direct sunlight.
Controlling the Ambient Temperature
To enhance the reliability of operation, the Inverter should be installed in an environment free from extreme
temperature increases. If the Inverter is installed in an enclosed environment, such as a box, use a cooling fan
or air conditioner to maintain the internal air temperature below 45°C.
Protecting the Inverter from Foreign Matter
Place a cover over the Inverter during installation to shield it from metal powder produced by drilling.
Always remove the cover from the Inverter after completing installation. Otherwise, ventilation will be
reduced, causing the Inverter to overheat.
1-9
Installation Orientation and Space
IMPORTANT
30 mm min.
30 mm min.
B mm min.
120 mm min.
Air
Air
Vertical SpaceHorizontal Space
A mm min.
Install the Inverter vertically so as not to reduce the cooling effect. When installing the Inverter, always
provide the following installation space to allow normal heat dissipation.
200 V Class Inverters of 110 kW or 400 V Class Inverters of 160 to 220 kW*: A = 120, B = 120
400 V Class Inverters of 300 kW*: A = 300, B = 300
All other Inverters*: A = 50, B = 120
*If, however, there is a fan in the top of the control panel with sufficient exhaust capacity, the following
dimensions may be used: A = 50, B = 120.
Fig 1.8 Inverter Installation Orientation and Space
1. The same space is required horizontally and vertically for both Open Chassis (IP00) and Enclosed Wallmounted [IP20, NEMA 1 (Type 1)] Inverters.
2. Always remove the protection covers before installing a 200 or 400 V Class Inverter with an output of
15 kW or less in a panel. Refer to Page 1-17 on how to remove the protection covers.
Always provide enough space for suspension eye bolts and the main circuit lines when installing a 200 or
400 V Class Inverter with an output of 18.5 kW or more in a panel.
1-10
Removing and Attaching the Terminal Cover
3
Approx. 30
°
1
2
1
1
2
Removing and Attaching the Terminal Cover
Remove the terminal cover to wire cables to the control circuit and main circuit terminals.
Removing the Terminal Cover
Inverters of 15 kW or Less
Loosen the screws at the bottom of the terminal cover, press in on the sides of the terminal cover in the direction indicated by arrow 1, and then lift the terminal cover up to an angle of about 30 degrees in the direction
indicated by arrow 2.
Remove the terminal cover in the direction indicated by arrow 3.
Fig 1.9 Removing the Terminal Cover (Model CIMR-G7B23P7 Shown Above)
Inverters of 18.5 kW or More
Loosen the screws on the left and right at the top of the terminal cover, pull out the terminal cover in the direction of arrow 1 and then lift up on the terminal in the direction of arrow 2.
Fig 1.10 Removing the Terminal Cover (Model CIMR-G7B2018 Shown Above)
1-11
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