YASKAWA CIMR-MX1S User manual

YASKAWA
YA S K AWA
MANUAL NO. EZZ010380
Upon receipt of the product and prior to initial operation, read these
instructions thoroughly, and retain for future reference.
Super Energy-saving Medium-voltage Matrix Converter
FSDrive-MX1S
INSTRUCTIONS
Type: CIMR-MX1S
3-kV class: 132 to 2500 kW (200 to 300 kVA)
6-kV class: 250 to 5000 kW (400 to 6000 kVA)

i
Preface
This manual is designed to ensure correct and suitable
application of Yaskawa Super Energy-saving Medium
voltage Matrix converter FSDrive-MX1S series (here-
inafter referred to as Matrix converter). Read this
manual before attempting to install, operate, maintain,
or inspect an Matrix converter. Be sure you understand
all precautions and safety information before attempt-
ing application.
This manual is necessary for maintenance manage-
ment of Matrix converter including daily maintenance/
checking and troubleshooting; keep this manual in a
safe place for further reference.
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 represen-
tatives 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.

ii
Safety Information
The following conventions are used to indicate precautions in this manual. Failure to heed pre-
cautions provided in this manual can result in serious or possibly even fatal injury or damage to
the products or to related equipment and systems.
Failure to heed a precaution classified as a caution can result in serious consequences depending
on the situation.
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.
IMPORTANT
Indicates important information that should be memorized.
WARNING
CAUTION

iii
Safety Precautions
Confirmations upon Delivery
Wiring
Setting User Constants
CAUTION
• Never install a Matrix converter that is damaged or missing components.
Doing so can result in injury.
WARNING
• Always turn off the input power supply before wiring terminals.
Otherwise, an electric shock or fire can occur.
• Wiring must be performed by an authorized person qualified in electrical work.
Otherwise, an electric shock or fire can occur.
• Be sure to ground the ground terminal. (Ground resistance 10Ωmax.)
Otherwise, an electric shock or fire can occur.
• Provide a separate emergency stop switch; the Digital Operator STOP Key is valid only when its
function is set. And when the communication error occur between the Digital Operator and the
Matrix converter, stop operation may not be performed from a Digital Operator.
Injury may occur.
• Always check the operation of any emergency stop circuits after they are wired.
If any emergency stop circuits are not correctly wired, the emergency stop will not operate when required. (The user is
responsible for wiring.)
• Never touch the output terminals directly with your hands or allow the output lines to come into con-
tact with the Matrix converter case. Never short the output circuits.
Otherwise, an electric shock or ground fault may occur.
CAUTION
• Check to be sure that the voltage of the main AC power supply satisfies the rated voltage of the
Matrix converter.
Connecting an incompatible power supply to the matrix converter may cause damage to the electric components, resulting
in injury or fire.
• Do not perform voltage withstand tests on the Matrix converter.
Otherwise, semiconductor elements and other devices can be damaged.
• Do not connect AC power to output terminals U, V, and W.
The interior parts of the Matrix converter 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 Matrix converter can be damaged or interior parts burnt if these devices are connected.
CAUTION
• Disconnect the load (machine, device) from the motor before performing rotational autotuning.
Driving a load with the motor during autotuning may result in damage to the equipment or injury. Moreover, motor con-
stants cannot be correctly set by autotuning if a load is connected.
• Secure the removed coupling with cloth or tape before autotuning.
The removed coupling may be unstable. Mishandling may result in damage to the coupling or grease loss.
• Do not touch the motor during autotuning.
The motor may unexpectedly start running during auto tuning. Touching the motor during autotuning may result in injury.

iv
Trial Operation
Maintenance and Inspection
WARNING
• Check to be sure that the panel door is closed before turning on the power supply. Do not open the
panel door during operation.
An electric shock may occur.
• Provide a separate emergency stop switch; the Digital Operator STOP Key is valid only when its
function is set.
Injury may occur.
• Make sure that the run signal is off before resetting the alarm.
CAUTION
• Do not touch the main circuit shortly after the power supply has been turned off.
Doing so may result in a burn injury because the main circuit remains very hot.
• Do not connect a measuring device to the Control Panel for a signal check during operation.
Doing so may result in electric shock or damage to the matrix converter or instrument.
• Be careful when changing Matrix converter settings. The Matrix converter is factory set to suitable
settings.
Otherwise, the equipment may be damaged.
WARNING
• Do not touch the Matrix converter terminals. Some of the terminals carry high voltages and are
extremely dangerous.
Doing so can result in electric shock.
• Always close the panel door when power is being supplied to the Matrix converter. When opening
the panel door, always turn off power to the Matrix converter through the MCCB.
Doing so can result in electric shock.
• After turning off the main circuit power supply, wait until the CHARGE indicator lamp on the cell
goes out before performing maintenance or inspections.
The capacitor may remain charged even after the power supply has been turned off. Touching the matrix converter while
the CHARGE indicator lamp is lit may cause electric shock.
• Maintenance, inspection, and replacement of parts must be performed only by authorized person-
nel.
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.
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.
• While power is being supplied, do not change wiring for the control circuit and do not insert or
remove connectors.
Doing so may damage the electric components.

v
Other
WARNING
• Do not attempt to modify or alter the Matrix converter.
Doing so may result in damage to the electronic devices, electrical shock, or injury.
CAUTION
• Do not subject the Matrix converter to halogen gases, such as fluorine, chlorine, bromine, and
iodine, at any time even during transportation or installation.
Otherwise, the Matrix converter can be damaged or interior parts burnt.

vi
Warning Information and Position
The warning label shown below is affixed on the front of each Power Cell mounted in the Power
Cell Panel (see Page 1-6). 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 the end user or if applica-
ble 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 end user. However, upon request, Yaskawa or
one of Yaskawa’s Service Centers can inspect the product for a fee. In this case, if after confer-
ring with the end user, 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 defec-
tive 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 end user
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
end user 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 end users outside of Japan for a reasonable fee.
Contact your local Yaskawa representative for more information.
Exceptions
Any inconvenience to the end user or damage to non-Yaskawa products due to Yaskawa's defec-
tive products whether within or outside the warranty period are NOT covered by this warranty.
Restrictions
•The Matrix converter 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 before-
hand.
•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
Before Reading This Manual
There are places in this manual where the constants and explanations depend on the version and
capacity of the Matrix converter. Be sure to confirm the version and capacity on the Matrix con-
verter’s nameplate.
Example of the Matrix converter’s nameplate

ix
Contents
Safety Information ........................................................................................... ii
Safety Precautions ......................................................................................... iii
Warning Information and Position .................................................................. vi
Warranty Information ..................................................................................... vii
Before Reading This Manual .........................................................................viii
1 Handling Matrix Converters
Introduction to FSDrive-MX1S Series Matrix Converters .............................1-2
FSDrive-MX1S Models ...................................................................................................1-2
Confirmation upon Delivery ..........................................................................1-3
Checks............................................................................................................................ 1-3
Nameplate Information ...................................................................................................1-3
Product Description ......................................................................................1-5
FSDrive-MX1S Series Matrix Converter .........................................................................1-5
Configuration ..................................................................................................................1-5
Dimensions and Mass ..................................................................................1-8
Checking and Controlling the Installation Site ............................................1-10
Installation Site .............................................................................................................1-10
Controlling the Ambient Temperature...........................................................................1-11
Protecting the Matrix Converter from Foreign Matter ................................................... 1-11
Transportation and Installation ...................................................................1-12
Transporting the FSDrive-MX1S Series Matrix Converter ............................................1-12
Side-by-Side Installation ...............................................................................................1-12
Installing an Matrix Converter on a Floor......................................................................1-13
2Wiring
Standard Wiring ............................................................................................2-2
Terminals ......................................................................................................2-4
Wiring Main Circuit Terminals .......................................................................2-5
Main Circuit Terminals ....................................................................................................2-5
Applicable Wire Sizes and Crimp Terminals...................................................................2-6
Wiring the Main Circuits..................................................................................................2-7
Wiring Control Circuit Terminals ...................................................................2-9
Control Circuit Terminal Layout and Specifications.........................................................2-9
Applicable Wire Sizes ................................................................................................... 2-11
Control Circuit Wiring Precautions................................................................................ 2-11

x
Connector for Personal Computer ............................................................. 2-12
Specifications ............................................................................................................... 2-12
Connection Cable......................................................................................................... 2-12
Cable Connections to Matrix Converter Terminals..................................... 2-13
Wiring Check.............................................................................................. 2-14
Checks ......................................................................................................................... 2-14
3 Digital Operator and Modes
Digital Operator ............................................................................................ 3-2
Digital Operator Display ................................................................................................. 3-2
Digital Operator Keys ..................................................................................................... 3-2
Modes .......................................................................................................... 3-4
Matrix Converter Modes ................................................................................................. 3-4
Switching Modes ............................................................................................................ 3-5
Drive Mode ..................................................................................................................... 3-6
Quick Programming Mode.............................................................................................. 3-7
Advanced Programming Mode....................................................................................... 3-8
Autotuning Mode .......................................................................................................... 3-10
Fault History Mode ....................................................................................................... 3-11
4 Trial Operation
Trial Operation Flowchart ............................................................................. 4-2
Trial Operation Procedures .......................................................................... 4-3
Inspecting and Retightening Screws and Bolts .............................................................. 4-3
Measuring Transformer Insulation Resistance ............................................................... 4-3
Turning on the Control Power......................................................................................... 4-3
Checking the Display Status........................................................................................... 4-3
Basic Settings................................................................................................................. 4-4
Control Method Settings................................................................................................. 4-5
Turning on the Medium-voltage Power Supply............................................................... 4-5
Autotuning ......................................................................................................................4-6
Making Application Settings ........................................................................................... 4-7
Checking No-load Operation .......................................................................................... 4-8
Checking Loaded Operation........................................................................................... 4-8
Checking and Recording User Constants ...................................................................... 4-8
Making Adjustments..................................................................................... 4-9
5 User Constants
User Constant Descriptions.......................................................................... 5-2
Description of User Constant Tables .............................................................................. 5-2
User Constant Tables................................................................................... 5-3
A: Setup Settings............................................................................................................ 5-4

xi
Application Constants: b ................................................................................................. 5-8
Autotuning Constants: C...............................................................................................5-13
Reference Constants: d ................................................................................................5-18
Motor Constants: E .......................................................................................................5-20
PLC Constants: F .........................................................................................................5-23
Terminal Function Constants: H ...................................................................................5-24
Protection Function Constants: L..................................................................................5-34
N: Special Adjustments.................................................................................................5-42
Digital Operator Constants: o .......................................................................................5-43
Factory Settings: Y .......................................................................................................5-45
T: Motor Autotuning ......................................................................................................5-46
U: Monitor Constants ....................................................................................................5-47
6 Constant Settings by Function
Frequency Reference ...................................................................................6-2
Selecting the Frequency Reference Source...................................................................6-2
Run Command .............................................................................................6-4
Selecting the Run Command Source .............................................................................6-4
Stopping Methods.........................................................................................6-5
Selecting the Stopping Method when a Stop Command is Sent.....................................6-5
Using the DC Injection Brake..........................................................................................6-8
Using an Emergency Stop ..............................................................................................6-9
Acceleration and Deceleration Characteristics...........................................6-10
Setting Acceleration and Deceleration Times ...............................................................6-10
Preventing the Motor from Stalling During Acceleration (Stall Prevention During Accelera-
tion Function)6-13
Adjusting Frequency References ...............................................................6-15
Adjusting Analog Frequency References .....................................................................6-15
Operation Avoiding Resonance (Jump Frequency Function) .......................................6-16
Speed Limit (Frequency Reference Limit Function) ...................................6-18
Limiting Maximum Output Frequency ...........................................................................6-18
Limiting Minimum Frequency........................................................................................6-18
Improved Operating Efficiency ...................................................................6-19
Reducing Motor Speed Fluctuation (Slip Compensation Function) ..............................6-19
Compensating for Insufficient Torque at Startup and Low-speed Operation (Torque Com-
pensation)6-21
Stabilizing Speed (Speed Feedback Detection Function) ............................................6-23
Machine Protection.....................................................................................6-24
Limiting Motor Torque (Torque Limit Function) .............................................................6-24
Using Frequency Detection: L4-01 to L4-04.................................................................6-25
Detecting Motor Torque ................................................................................................6-28
Motor Overload Protection............................................................................................6-32
Setting Motor Protection Operation Time......................................................................6-33
Limiting Motor Rotation Direction..................................................................................6-34

xii
Continuing Operation ................................................................................. 6-35
Restarting Automatically After Power Is Restored........................................................ 6-35
Speed Search............................................................................................................... 6-36
Input Terminal Functions ............................................................................ 6-42
Temporarily Switching Operation between Digital Operator and Control Circuit Terminals.
6-42
Blocking Matrix Converter Outputs (Baseblock Commands) ....................................... 6-43
Raising and Lowering Frequency References Using Contact Signals (UP/DOWN) .... 6-44
Jog Frequency Operation without Forward and Reverse Commands (FJOG/RJOG) . 6-45
Stopping the Matrix Converter by Notifying Peripheral Device Errors to the Matrix
Converter (External Fault Function) ............................................................................ 6-47
Output Terminal Functions ......................................................................... 6-48
Monitor Constants ...................................................................................... 6-50
Using the Analog Monitor Constants............................................................................ 6-50
Digital Operator Functions.......................................................................... 6-53
Setting Digital Operator Functions ............................................................................... 6-53
Prohibiting Writing Constants from the Digital Operator............................................... 6-54
Individual Functions ................................................................................... 6-55
Performing Speed Control with PG .............................................................................. 6-55
7 Troubleshooting
Protective and Diagnostic Functions............................................................ 7-2
Fault Detection and Alarm Detection.............................................................................. 7-2
Drive Faults ....................................................................................................................7-3
Cell Faults ...................................................................................................................... 7-7
LED Indicators on the Controller and CCB (Cell Control Board) (For Reference) ......... 7-8
Operation Errors........................................................................................................... 7-10
Errors During Autotuning.............................................................................................. 7-11
Troubleshooting.......................................................................................... 7-13
If Constants Cannot Be Set .......................................................................................... 7-13
If the Motor Does Not Operate ..................................................................................... 7-14
If the Direction of the Motor Rotation is Reversed........................................................ 7-15
If the Motor Does Not Put Out Torque or If Acceleration is Slow ................................. 7-16
If the Motor Operates Higher Than the Reference ....................................................... 7-16
If the Slip Compensation Function Has Low Speed Precision ..................................... 7-16
If There is Low Speed Control Accuracy at High-speed Rotation in Open-loop Vector
Control Method............................................................................................................. 7-17
If the Motor Overheats.................................................................................................. 7-17
If There is Mechanical Oscillation................................................................................. 7-17
If the Torque Generated for the Motor is Insufficient (Insufficient Power)..................... 7-18
If the Motor Rotates Even When Matrix Converter Output is Stopped ......................... 7-18
If Output Frequency Does Not Rise to Frequency Reference...................................... 7-19

xiii
8 Maintenance and Inspection
Maintenance and Inspection.........................................................................8-2
Warranty Period..............................................................................................................8-3
Daily Inspection ..............................................................................................................8-3
Periodic Inspection .........................................................................................................8-4
Periodic Maintenance of Parts........................................................................................8-9
Spare Parts...................................................................................................................8-10
Models and Number of Cooling Fans Mounted in an FSDrive-MX1S Series
Matrix Converter ...........................................................................................................8-12
Cooling Fan Replacement Procedure...........................................................................8-13
Removing and Remounting a Power Cell.....................................................................8-14
Memory Backup Battery Replacement Procedure........................................................8-16
9 Specifications
FSDrive-MX1S Standard Specifications .......................................................9-2
Specifications by Model ..................................................................................................9-2
Revision History

Handling Matrix
Converters
This chapter describes the checks required upon receiving or installing an FSDrive-MX1S
series Matrix converter.
Introduction to FSDrive-MX1S Series Matrix
Converters ....................................................................1-2
Confirmation upon Delivery .........................................1-3
Product Description .....................................................1-5
Dimensions and Mass .................................................1-8
Checking and Controlling the Installation Site ...........1-10
Transportation and Installation...................................1-12

1-2
Introduction to FSDrive-MX1S Series Matrix
Converters
FSDrive-MX1S Models
The FSDrive-MX1S series Matrix converters are classified into two voltage classes: 3 kV and 6 kV. The
Matrix converters of both classes are suitable for power supply frequencies of 50 Hz or 60 Hz.
They are applicable to motor capacities from 132 kW to 5,000 kW (36 models).
* Indicates the capacities of Yaskawa’s 4-pole motors.
Table 1.1 FSDrive-MX1S Models
Volt-
age
Class
[V]
Power
Supply
Fre-
quency
[Hz]
Output
Capacity
[kVA]
Cell Rated
Current
[A]
Basic Model Number Product Code No.
Max. Applicable
Motor Capacity*
[kW]
<Reference>
3000 50
200 35 CIMR-MX1SBA132 71686-MX1SBA132 132
285 50 CIMR-MX1SBA200 71686-MX1SBA200 200
400 70 CIMR-MX1SBA315 71686-MX1SBA315 315
570 100 CIMR-MX1SBA450 71686-MX1SBA450 450
800 140 CIMR-MX1SBA630 71686-MX1SBA630 630
1150 200 CIMR-MX1SBA900 71686-MX1SBA900 900
1500 260 CIMR-MX1SBA13C 71686-MX1SBA13C 1250
2300 400 CIMR-MX1SBA18C 71686-MX1SBA18C 1800
3000 520 CIMR-MX1SBA25C 71686-MX1SBA25C 2500
3300 60
200 35 CIMR-MX1SAA132 71686-MX1SAA132 132
285 50 CIMR-MX1SAA200 71686-MX1SAA200 200
400 70 CIMR-MX1SAA315 71686-MX1SAA315 315
570 100 CIMR-MX1SAA450 71686-MX1SAA450 450
800 140 CIMR-MX1SAA630 71686-MX1SAA630 630
1150 200 CIMR-MX1SAA900 71686-MX1SAA900 900
1500 260 CIMR-MX1SAA13C 71686-MX1SAA13C 1250
2300 400 CIMR-MX1SAA18C 71686-MX1SAA18C 1800
3000 520 CIMR-MX1SAA25C 71686-MX1SAA25C 2500
6000 50
400 35 CIMR-MX1SDC250 71686-MX1SDC250 250
570 50 CIMR-MX1SDC400 71686-MX1SDC400 400
800 70 CIMR-MX1SDC630 71686-MX1SDC630 630
1150 100 CIMR-MX1SDC900 71686-MX1SDC900 900
1600 140 CIMR-MX1SDC13C 71686-MX1SDC13C 1250
2300 200 CIMR-MX1SDC18C 71686-MX1SDC18C 1800
3000 260 CIMR-MX1SDC25C 71686-MX1SDC25C 2500
4600 400 CIMR-MX1SDC36C 71686-MX1SDC36C 3600
6000 520 CIMR-MX1SDC50C 71686-MX1SDC50C 5000
6600 60
400 35 CIMR-MX1SCC250 71686-MX1SCC250 250
570 50 CIMR-MX1SCC400 71686-MX1SCC400 400
800 70 CIMR-MX1SCC630 71686-MX1SCC630 630
1150 100 CIMR-MX1SCC900 71686-MX1SCC900 900
1600 140 CIMR-MX1SCC13C 71686-MX1SCC13C 1250
2300 200 CIMR-MX1SCC18C 71686-MX1SCC18C 1800
3000 260 CIMR-MX1SCC25C 71686-MX1SCC25C 2500
4600 400 CIMR-MX1SCC36C 71686-MX1SCC36C 3600
6000 520 CIMR-MX1SCC50C 71686-MX1SCC50C 5000

Confirmation upon Delivery
1-3
Confirmation upon Delivery
Checks
Check the following items as soon as the Matrix converter has been delivered.
If you find any irregularities in the above items, contact your Matrix converter supplies or Yaskawa represen-
tative immediately.
Nameplate Information
The nameplate is affixed on the inside of the Control Panel door of the Matrix converter.
The nameplate contains information including the model number, specifications, date of manufacture, and
serial number.
Nameplate Sample
An example of a nameplate affixed on an Matrix converter with standard specifications is shown below.
Fig 1.1 Nameplate Example
Table 1.2 Checks
Item Method
Has the correct Matrix converter model been
delivered?
Check the model number on the nameplate on the inside of the Matrix
converter panel door.
Is the Matrix converter damaged in any way?
Inspect the entire exterior of the Matrix converter to see if there are any
scratches or other damage resulting from shipping.
Open the panel door, and inspect the interior of the Matrix converter to
see if there is any damage or displacement, and to confirm that there are
no missing parts.
Are any screws or other components loose?
Use a screwdriver or other tool to check for tightness.
In particular, check the tightening torque of all terminal screws on the
electrical connections.
FSDrive-MV1S model
Manufactured date
Serial number
Capacity
Input voltage
Output voltage
Output current
Input frequency
Specifications

1-4
Matrix converter Model Descriptions
The Matrix converter model number on the nameplate indicates the specifications, voltage class, and maxi-
mum capacity of the Matrix converter in alphanumeric code.
Fig 1.2 Matrix converter Model Descriptions
CIMR MX1 S
Matrix Converter
FSDrive-MX1 series
Application
S: For energy saving
Input voltage and frequency
A: 3300 V 60 Hz
B: 3000 V 50 Hz
C: 6600 V 60 Hz
D: 6000 V 50 Hz
E: 3300 V 50 Hz
F: 6600 V 50 Hz
Output voltage
A: 3300 V
B: 6600 V
Applicable motor capacity (Reference)
132: 132 kW
13C: 1250 kW
18C: 1800 kW
50C: 5000 kW




Product Description
1-5
Product Description
FSDrive-MX1S Series Matrix Converter
The FSDrive-MX1S series Matrix converter is a new series PWM type medium voltage inverter unit. This unit
offers the following four features:
•The power supply regeneration function allows dynamic acceleration/deceleration operations.
•Enables a clean power supply minus excessive harmonics.
This Matrix converter unit causes little voltage distortion and uses little current.
•Achieves high efficiency and high power factor.
Matrix converter efficiency: approx. 98%, power factor: 0.95 or more (at rated rotation and 100% load)
•Achieves output voltage and current of approximate sinusoidal wave.
Since the Matrix converter unit has little surge voltage that affects motor, existing motors or cables can be
used without modification.
Torque ripple is minimized.
Configuration
Fig. 1.3 shows typical configurations of FSDrive-MX1S series Matrix converters.
As shown in Fig. 1.3, the FSDrive-MX1S series Matrix converter is composed of three panels:
•Transformer Panel
•Power Cell Panel
•Control Panel (Some models have one panel commonly used as Control and Transformer Panel because of
their capacities.)
Transformer Panel
The Transformer Panel houses a dry-type transformer, 3 kV (3.3 kV)/630 V or 6 kV (6.6 kV)/630 V with
multi-windings. The secondary winding of the multiple transformer is composed of three steps (9 windings)
for 3 kV class or 6 steps (18 windings) for 6 kV class, each of which is connected to a 3-phase input of the
Power Cell.
Several cooling fans are mounted on the Transformer Panel, in which pressurized ventilation fans are stored.
Cooled air brought through the filters on the Transformer Panel and Power Cell Panel front faces passes the
transformer section and Power Cell fin section, flows into the air duct in the panel rear, and is exhausted
through the fan section panel after cooling the main circuit components.

1-6
Power Cell Panel
In the Power Cell Panel, a total of 9 Power Cells, 3 steps for each phase of A (U), B (V) and C (W) for 3 kV
class, or a total of 18 Power Cells, 6 steps each for 6 kV class are stored. These Power Cells have exactly the
same configurations and electric ratings; each Power Cell is a single-phase matrix converter with 3-phase 630
VAC input.
The power section and the cell control board (CCB) are incorporated into the Power Cell. Each CCB is con-
nected to the controller in the Control Panel with an optical fiber cable. The CCB controls PWM output of the
cell according to the references sent from the controller through the optical fiber cable. The CCB has protec-
tive functions against overvoltage, undervoltage, IGBT overheat, etc. and sends an answerback to the control-
ler through the optical fiber cable.
Control Panel
The Control Panel houses a controller and control power supply to control the Matrix converter and peripheral
devices such as the MCCB (Moulded-case Circuit Breaker), sequence I/O relay, and analog I/O isolation
amplifier.
The control circuit terminal block is mounted in the Control Panel for connection of all external cables except
the medium voltage input cable and motor main circuit wirings.
A 200/220-VAC power supply is required for cooling fan and control power.
The controller is composed of a CPU board, modulator board, current detection resistor board, and optical
fiber interface board (only for 6 kV class Matrix converters). The current detection resistor board model dif-
fers depending on the Matrix converter capacity. Refer to Table 8.5 Current Detection Resistor Board Models
for more information. The power supplies are 5V, ±15 V, and 24 V and are used as a control power supply, an
analog I/O power supply, and a sequence I/O power supply respectively. Refer to Table 8.4 List of Recom-
mended Spare Parts for the power supply model.
A Digital Operator including the functions of writing/reading of constants and status/fault monitoring, and a
modular jack for connection with a personal computer are provided on the panel face.