Mitsubishi Electronics FR-C500 User Manual
TRANSISTORIZED INVERTER
FR-C
500
INSTRUCTION MANUAL
INVERTER WITH BUILT-IN PLC FUNCTION
(plus COMMUNICATION COMPATIBILITY)
FR-C520-0.1K
to
3.7K
INSTALLATION AND
WIRING
OPERATION AND
CONTROL
INVERTER
FUNCTIONS
Chapter 1
Chapter 2
Chapter 3
PLC FUNCTION
CC-Link
COMMUNICATION
PROTECTIVE
FUNCTIONS
SPECIFICATIONS
Chapter 4
Chapter 5
Chapter 6
Chapter 7
This instruction manual gives handling information and precautions for use of this
product.
Please forward this manual to the end user.
This section is specifically about safety matters
Do not attempt to install, operate, maintain or inspect the inverter until you have read
through this instruction manual and appended documents carefully and can use the
equipment correctly. Do not use the inverter until you have a full knowledge of the
equipment, safety information and instructions.
In this instruction manual, the safety instruction levels are classified into "WARNING"
and "CAUTION".
WARNING
CAUTION
Assumes that incorrect handling may cause hazardous
conditions, resulting in death or severe injury.
Assumes that incorrect handling may cause hazardous
conditions, resulting in medium or slight injury, or may cause
physical damage only.
Note that even the level may lead to a serious consequence
according to conditions. Please follow the instructions of both levels as they are
important to personnel safety.
1. Electric Shock Prevention
CAUTION
WARNING
While power is on or when the inverter is running, do not open the front cover. You
!!!!
may get an electric shock.
Do not run the inverter with the front cover removed. Otherwise, you may access
!!!!
the exposed high-voltage terminals or the charging part of the circuitry and get an
electric shock.
If power is off, do not remove the front cover except for wiring or periodic inspection.
!!!!
You may access the charged inverter circuits and get an electric shock.
Before starting wiring or inspection, switch power off, wait for more than at least 10
!!!!
minutes and check for the presence of any residual voltage with a meter, etc.
Earth (ground) the inverter in a class D or higher protective earthing (grounding)
!!!!
method.
Any person who is involved in the wiring or inspection of this equipment should be
!!!!
fully competent to do the work.
Always install the inverter before wiring. Otherwise, you may get an electric shock
!!!!
or be injured.
Operate the switches with dry hands to prevent an electric shock.
!!!!
Do not subject the cables to scratches, excessive stress, heavy loads or pinching.
!!!!
Otherwise, you may get an electric shock.
Do not change the cooling fan with power on. It is dangerous to c hange the cooling
!!!!
fan while power is on.
2. Fire Prevention
CAUTION
Mount the inverter on incombustible material. Mounting it to or near combustible
!!!!
material can cause a fire.
If the inverter has become faulty, switch off the inverter power. A continuous flow of
!!!!
large current could cause a fire.
Do not connect a resistor directly to the DC terminals P(+), N(+). This could cause a fire.
!!!!
A-1
3. Injury Prevention
CAUTION
!
! Apply only the voltage specified in the instruction manual to each terminal to pre-
!!
vent damage, etc.
!
! Ensure that the cables are connected to the correct terminals. Otherwise, damage,
!!
etc. may occur.
!
! Always make sure that polarity is correct to prevent damage, etc.
!!
!
! While power is on or for some time after power-off, do not touch the inverter or
!!
brake resistor as they are hot and you may get burnt.
4. Additional instructions
Also note the following points to prevent an accidental failure, injury, electric shock, etc.:
(1) Transportation and installation
CAUTION
!
! When carrying products, use correct lifting gear to prevent injury.
!!
!
! Do not stack the inverter boxes higher than the number recommended.
!!
!
! Ensure that installation position and material can withstand the weight of the
!!
inverter. Install according to the information in the Instruction Manual.
!
! Do not operate if the inverter is damaged or has parts missing.
!!
!
! Do not hold the inverter by the front cover; it may fall off.
!!
!
! Do not stand or rest heavy objects on the inverter.
!!
!
! Check the inverter mounting orientation is correct.
!!
!
! Prevent screws, wire fragments or other conductive bodies, oil or other flammable
!!
substances from entering the inverter.
!
! Do not drop the inverter, or subject it to impact.
!!
!
! Use the inverter under the following environmental conditions:
!!
Ambient
temperature
Ambient
humidity
Storage
temperature
Ambience
Environment
Altitude,
vibration
*Temperatures applicable for a short time, e.g. in transit.
(2) Wiring
-10°C to +50°C (non-freezing)
90%RH or less (non-condensing)
-20°C to +65°C*
Indoors (free from corrosive gas, flammable gas, oil mist,
dust and dirt)
Max. 1000m above sea level
2
5.9m/s
{0.6G} or less (conforming to JIS C 0040)
CAUTION
!
! Do not fit capacitive equipment such as power factor correction capacitor, radio
!!
noise filter or surge suppressor to the output of the inverter.
!
! The connection orientation of the output cables U, V, W to the motor will affect the
!!
direction of rotation of the motor.
(3) Trial run
CAUTION
!
! Check all parameters, and ensure that the machine will not be damaged by a sud-
!!
den start-up.
A-2
(4) Operation
WARNING
!
! The [STOP] key is valid only when the appropriate function setting has been made.
!!
Prepare an emergency stop switch separately.
!
! Make sure that the start signal is off before resetting the inverter alarm. A failure to
!!
do so may restart the motor suddenly.
!
! The load used should be a three-phase induction motor only. Connection of any
!!
other electrical equipment to the inverter output may damage the equipment.
!
! Do not modify the equipment.
!!
CAUTION
!
! The electronic overcurrent protection does not guarantee protection of the motor
!!
from overheating.
!
! Do not use a magnetic contactor on the inverter input for frequent starting/stopping
!!
of the inverter.
!
! Use a noise filter to reduce the effect of electromagnetic interference. Otherwise
!!
nearby electronic equipment may be affected.
!
! Take measures to suppress harmonics. Otherwise power harmonics from the
!!
inverter may heat/damage the power capacitor and generator.
!
! When parameter clear is performed, each parameter returns to the factory setting.
!!
Re-set the required parameters before starting operation.
!
! The inverter can be easily set for high-speed operation. Before changing its set-
!!
ting, fully examine the performances of the motor and machine.
!
! In addition to the inverter's holding function, install a holding device to ensure
!!
safety.
!
! Before running the inverter which had been stored for a long period, always per-
!!
form inspection and test operation.
(5) Emergency stop
CAUTION
!
! Provide a safety backup such as an emergency brake which will prevent the
!!
machine and equipment from hazardous conditions if the inverter fails.
(6) Maintenance, inspection and parts replacement
CAUTION
!
! Do not carry out a megger (insulation resistance) test on the control circuit of the
!!
inverter.
(7) Disposing of the inverter
CAUTION
!
! Treat as industrial waste.
!!
(8) General instructions
Many of the diagrams and drawings in this instruction manual show the inverter
without a cover, or partially open. Never operate the inverter in this status. Always
replace the cover and follow this instruction manual when operating the inverter.
A-3
CONTENTS
1. INSTALLATION AND WIRING 1
1.1 Basic Config u ration............ .. ............................. ............... ...........2
1.2 Precautions for Use ....................................................................3
1.3 Installation of the Inverter............................................................3
1.4 Terminal Connection Diagram....................................................5
1.5 Wiring of the Power Supply and Motor........................................6
1.5.1 Description of the main circuit terminals....................................................... 6
1.5.2 Layout and wiring of the main circuit terminals............................................. 6
1.5.3 Cables, wiring lengths, crimping terminals, etc............................................. 6
1.6 Earthing (Grounding) Precautions...............................................7
1.7 Control Circuit .............................................................................8
1.7.1 Description of the control circuit terminals....................................................8
1.7.2 Layout and wiring of the control circuit terminals........................................ 10
1.7.3 Layout and wiring of the CC-Link terminals................................................ 11
1.7.4 Changing the control logic ..........................................................................12
1.7.5 RS-485 Connector......................................................................................14
1.7.6 Connection of the parameter unit (FR-PU04)............................................. 14
1.8 Input Terminals.........................................................................15
1.8.1 Run (start) and stop (STF, STR)................................................................. 15
1.8.2 External frequency selection (RH, RM, RL)................................................ 17
1.8.3 Control circuit common terminals (SD, SE) ................................................ 18
1.8.4 Signal inputs by contactless switches......................................................... 18
1.9 How to Use the Input Signals (Assigned Terminals RL, RM, RH,
STR, SQ) ..................................................................................19
1.9.1 Multi-speed setting (RL, RM, RH signals): Pr. 60 to Pr. 63, Pr. 65, Pr. 505
setting "0, 1, 2"............................................................................................19
1.9.2 Output shut-off (MRS signal): Pr. 60 to Pr. 63, Pr. 65, Pr. 505 setting "6".. 1 9
1.9.3 External thermal relay input: Pr. 60 to Pr. 63, Pr. 65, Pr. 505 setting "7".... 19
1.9.4 Reset signal: Pr. 60 to Pr. 63, Pr. 65, Pr. 505 setting "10".......................... 20
1.9.5 Start (forward rotation) signal: Pr. 65 setting "17".......................................20
1.9.6 Sequence start: Pr. 60 to Pr. 63, Pr. 65, Pr. 505 setting "50" ..................... 21
1.9.7 No function: Pr. 60 to Pr. 63, Pr. 65, Pr. 505 setting "9998" ....................... 21
1.9.8 Start (reverse rotation) signal: Pr. 63 setting "9999"...................................21
1.10 Peripheral Devices.............. .......................................... ............22
1.10.1 Peripheral device list................................................................................... 22
1.10.2 Leakage current and installation of earth (ground) leakage circuit breaker 22
1.10.3 Power-off and magnetic contactor (MC)..................................................... 26
1.10.4 Regarding the installation of the power factor improving reactor................ 27
1.10.5 Regarding noises and the installation of the noise filter..............................28
1.10.6 Power harmonics........................................................................................29
I
1.10.7 Power harmonic suppression guideline.......................................................30
1.11 Connection of Stand-Alone Option Units...................................33
1.11.1 Connection of the conventional BU brake unit (option)...............................33
1.11.2 Connection of the FR-HC high power factor converter (option)..................33
1.11.3 Connection of the power regeneration common converter (FR-CV)...........34
1.12 Wiring of the Inverter and Personal Computer Using
GX Developer for RS-485 Communication ......................... ......35
1.13 Wiring fo r C C -L i n k C o m mu n i c a t io n ..... .. ... ............................ .....36
1.14 Wiring of the Inverter and Computer Using
RS-485 communication........................................................... ..38
1.15 Desi g n In f o rm a t io n ................... ................ ............................ .....40
2. OPERATION AND CONTROL 41
2.1 Parts Identification and Functions of the
Operation Panel ............................. ...........................................42
2.2 Operation Mode Switching........................................................42
2.3 Monitor Transition......................................................................43
2.4 Monitoring the Output Current...................................................43
2.5 Displaying the CC-Link Data (Station Number, Baudrate)........43
2.6 LED On/Off Operations .............................................................44
2.6.1 How to check the LED lamps for CC-Link
communication errors................................. ..... ...... ...... ................................45
CONTENTS
3. INVERTER FUNCTIONS 49
3.1 Function (Parameter) List..........................................................50
3.2 List of Parameters Classified by Purpose of Use......................55
3.3 Basic Functions.........................................................................56
3.3.1 Torque boost (Pr. 0)....................................................................................56
3.3.2 Maximum and minimum frequencies (Pr. 1, Pr. 2)......................................57
3.3.3 Base frequency (Pr. 3)................................................................................58
3.3.4 Multi-speed operation (Pr. 4, Pr. 5, Pr. 6)....................................................59
3.3.5 Acceleration/deceleration time (Pr. 7, Pr. 8)................................................60
3.3.6 Electronic thermal O/L relay (Pr. 9).............................................................61
3.3.7 DC injection brake (Pr. 10, Pr. 11, Pr. 12)...................................................61
3.3.8 Starting frequency (Pr. 13)..........................................................................62
3.3.9 key rotation direction selection (Pr. 17)...........................................63
3.3.10 Stall prevention function and current limit function
3.3.11 Start-time earth (ground) fault detection selection (Pr. 40) .........................66
3.4 Operation Panel Display Selection............................................67
RUN
(Pr. 21, Pr. 22).............................................................................................63
II
3.4.1 Monitor display (Pr. 52)............................................... ...... ..... ..................... 67
3.5 I/O Terminal Function Selection................................................68
3.5.1 Input terminal function selection (Pr. 60, Pr. 61, Pr. 62,
Pr. 63, Pr. 65, Pr. 505)............................................................................... 68
3.5.2 Output terminal function selection (Pr. 64, Pr. 505)....................................69
3.6 Operation Selection Function Parameters................................70
3.6.1 Applied motor (Pr. 71).................................................................................70
3.6.2 PWM carrier frequency (Pr. 72).................................................................. 70
3.6.3 Reset selection/PU stop selection (Pr. 75) .................................................71
3.6.4 Cooling fan operation selection (Pr. 76)......................................................73
3.6.5 Parameter write disable selectio n (Pr. 77)........................ ..... ...... ...... ......... 74
3.6.6 Operation mode and command source (Pr. 79, Pr. 338,
Pr. 339, Pr. 340).......................................................................................... 75
3.7 Computer L in k Op e r a tio n S e tting.......................................... ....79
3.7.1 Communication settings (Pr. 331 to Pr. 337, Pr. 341)................................79
3.7.2 E2PROM write selection (Pr. 342).............................................................. 92
3.8 Parameter Unit (FR-PU04) Setting ...........................................93
3.8.1 Parameter display language selection (Pr. 145)......................................... 93
3.8.2 PU buzzer control (Pr. 990) ........................................................................93
3.8.3 PU contrast adjustment (Pr. 991)................................................................ 94
3.8.4 PU main display screen data selection (Pr. 992)........................................ 94
3.8.5 PU disconnection detection/PU setting lock (Pr. 993)................................95
4. PLC FUNCTION 97
4.1 System Configuration................................................................98
4.2 Prior to Sequence Program Creation................................. .. .....99
4.2.1 Precautions for sequence program creation............................................... 99
4.2.2 Usable main GX Developer functions......................................................... 99
4.2.3 Sequence program execution key ............................................................ 100
4.2.4 Sequence program write...........................................................................101
4.3 Function Block Diagram.............................. ...................... ......102
4.3.1 Setting list of built-in PLC function parameter........................................... 103
4.4 PLC Instructions......................................................................104
4.4.1 How to use the instruction list...................................................................104
4.4.2 PLC instruction list................................ ..... ...... .........................................106
4.5 Device Map ...... ... .. ............................ ............................. .........109
4.5.1 I/O device map..........................................................................................109
4.5.2 Internal relay (M) device map ...................................................................110
4.5.3 Data register (D) device map.................................................................... 110
4.5.4 Special relays....................... ..... ...... ...... ..... ............................................. ..112
4.5.5 Special registers........................................ ...... ..... ....................................112
4.6 Inputs/Outputs.........................................................................114
III
4.6.1 Input (X) assignment........................................................ ...... ...... .............114
4.6.2 Output (Y) assignment..............................................................................116
4.7 Inverter Status Monitoring, Special Registers for Control .......117
4.7.1 Data that can be read at all times..............................................................117
4.7.2 Data that are read by controlling (OFF to ON) the read command...........119
4.7.3 How to write data by controlling (OFF to ON) the write
command..................................................................................................121
4.7.4 Inverter operation status control................................................................126
4.7.5 Inverter parameter access error (D9150)..................................................128
4.7.6 Inverter status (D9151)..............................................................................128
4.8 Inverter Paramet er Read/Write Method .............................. ....129
4.8.1 Reading the inverter parameters...............................................................130
4.8.2 Writing the inverter parameters.................................................................132
4.9 User Area Read/Writ e Method.................... ...................... ......135
4.9.1 User parameter read/write method............................................................135
4.10 Debugging Mode Specifications..............................................136
4.11 Regi s te r D is p lay ..................... ............................. ....................13 7
4.12 Inverter Operation Lock Mode Setting.....................................138
5. CC-Link COMMUNICATION 139
5.1 System Configuration ..............................................................140
5.1.1 System configuration example..................................................................140
5.1.2 Regarding CC-Link Ver. 1.10....................................................................140
5.1.3 Function block diagram.............................................................................141
5.2 CC-Link Para m e t e rs.... .. ............................. ............................ .143
5.2.1 Setting of station number and baudrate (Pr. 503, Pr. 504)........................143
5.2.2 Regarding the operation mode..................................................................143
5.2.3 Operation at CC-Link communication error occurrence............................144
5.3 CC-Link I/O Sp e c if ic a tio n s ......... .. ............................. ..............145
5.4 Buffer Memory.........................................................................148
5.4.1 Remote output signals (Master module to inverter)..................................148
5.4.2 Remote input signals (Inverter to master module) ....................................149
5.4.3 Remote registers (Master module to inverter)...........................................150
5.4.4 Remote registers (Inverter to master module)...........................................151
CONTENTS
6. PROTECTIVE FUNCTIONS 153
6.1 Errors (Alarms)........................................................................154
6.1.1 Error (alarm) definitions.............................................................................155
6.1.2 To know the operating status at the occurrence of alarm
(Only when FR-PU04 is used)..................................................................161
6.1.3 Correspondences between digital and actual characters..........................161
IV
6.1.4 Resetting the inverter................................................................................ 161
6.2 Troubleshooting......................................................................162
6.2.1 Motor remains stopped ............................................................................. 162
6.2.2 Motor rotates in opposite direction............................................................ 162
6.2.3 Speed greatly differs from the setting.......................................................163
6.2.4 Acceleration/deceleration is not smooth...................................................163
6.2.5 Motor current is large................................................................................ 163
6.2.6 Speed does not increase..........................................................................163
6.2.7 Speed varies during operation.................................................................. 163
6.2.8 Operation mode is not changed properly..................................................164
6.2.9 Operation mode is not switched to CC-Link operation mode.................... 164
6.2.10 Inverter cannot be started in CC-Link operation mode ............................. 164
6.2.11 Operation panel display is not provided.................................................... 164
6.2.12 Parameter write cannot be performed................................... ...... ...... ..... ..164
6.2.13 Motor produces annoying sound............................................................... 164
6.3 Precautions for Maintenance and Inspection..........................165
6.3.1 Precautions for maintenance and inspection............................................ 165
6.3.2 Check items.............................................................................................. 165
6.3.3 Periodic inspection.................................................................................... 165
6.3.4 Insulation resistance test usin g megger........... ..... ...... ...... ........................ 166
6.3.5 Pressure test........................................................................................... ..166
6.3.6 Daily and periodic inspection....................................................................167
6.3.7 Replacement of parts................................................................................171
6.3.8 Measurement of main circuit voltages, currents and powers....................174
7. SPECIFICATIONS 177
7.1 Ratings....................................................................................178
7.2 Common Specifications ..........................................................179
7.3 PLC Function Specificat ions...................................................180
7.4 CC-Link Inte r fa c e Sp e c if ic a tio n s... .. ................ ............... .........180
7.5 Outline Drawings.....................................................................181
APPENDICES 183
Appendix 1 Parameter Data Codes for Computer Link
Operation U si n g R S -485 Commun ic a tion......... .. .........184
Appendix 2 Instructions for Compliance with
the European Standards..............................................187
Appendix 3 Instructions for compliance with U.S. and Canadian
Electrical Codes...........................................................189
V
1. INSTALLATION AND WIRING
This chapter explains the "installation and wiring" for use of this
product.
Always read the instructions before use.
1.1 Basic Configuration ............................................. 2
1.2 Precautions for Use ............................................. 3
1.3 Installation of the Inverter ................................... 3
1.4 Terminal Connection Diagram............................. 5
1.5 Wiring of the Power Supply and Motor .............. 6
1.6 Earthing (Grounding) Precautions ..................... 7
1.7 Contr o l C ircuit ...... ................ ............... ................. 8
1.8 Input Terminals..................................................... 15
1.9 How to Use the Input Signals (Assigned
Terminals RL, RM, RH, STR, SQ)
1.10 Peripheral Devices.................... .. ......................... 22
1.11 Connection of Stand-Alone Option Units .......... 33
1.12 Wiring of the Inverter and Personal Computer
Using GX Developer for RS-485 Communication
1.13 Wiring for CC-Link Communication.................... 36
1.14 Wiring of the Inverter and Computer Using RS485 communication
1.15 Design Information............................................... 40
<Trademarks>
• CC-Link is a registered trademark of CC-Link Partner
Association.
• Other company and product names herein are the trademarks
or registered trademarks of their respective owners.
......................................................
............................
19
35
38
Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
1
Basic Configuration
1.1 Basic Configuration
Power supply
Use within the permissible power supply specifications of the
inverter. (Refer to page 178.)
(NFB)
or
(ELB)
(MC)
AC reactor
(FR-BAL)
Earth
(Ground)
Earth (Ground)
DC reactor
(FR-BEL)
No-fuse breaker or earth leakage circuit breaker
The breaker must be selected carefully since an inrush current
flows in the inverter at power-on. (Refer to page 22.)
Magnetic contactor
Do not use this magn etic contacto r to start and stop th e inverter.
Doing so will cause the inverter life to be shorter. (Refer to page
22.)
Installation of reactors
The reactors must be used when the power factor is to be
improved or the inverter is installed near a large power supply
system (500kVA or more and w iring distance within 1 0m). Make
selection carefully. (Refer to page 22.)
Inverter
The inverter life is influenced by ambient temperature. The
ambient temperature should be as low as possible within the
permissible range. (Refer to page 4.)
Wrong wiring might lea d to damage of the inverter. The control
signal wires must be kept fully away from the main circuit to
protect them from noise. (Refer to page 5.)
Devices connected to the output
Do not connect a power factor correction capacitor, surge
suppressor or radio n oi se fi lter to the out put side.
Earth (Ground)
To prevent an electric shock, always earth (ground) the motor and
inverter.
For reduction of induction noise from the power line of the
inverter, it is recommended to wire the earth (ground) cable by
returning it to the earth (ground) terminal of the inverter.
(For details of noise reduction techniques, refer to pa ge 28.)
REMARKS
•When using t he P LC fu nc tion, refer to page 35 for wiring an d to page 98 for details.
•When using t he CC-Link function, refer to page 36 for wiring and to page 140 fo r de ta ils .
2
Precautions for Use
1.2 Precautions for Use
Harmonic Suppression Guideline
The "harmonic suppression guideline for household appliances and general-purpose
products" issued by the Ministry of Economy, Trade and Industry (formerly Ministry of
International Trade and Industry) in September, 1994 applies to the FR-C500 series.
By installing the FR-BEL or FR-BAL power factor improving reactor, this product
complies with the "harmonic suppression techniques for transistorized inverters (input
current 20A or less)" established by the Japan Electrical Manufacturers' Association.
Product Checking and Parts Identification
Unpack the inverter and check the capacity plate on the front cover and the rating
plate on the inverter side face to ensure that the product agrees with your order and
the inverter is intact.
Part names and plates
Operation panel
CC-LINK connector
PU connector
(RS-485 connector)
Rating plate
Inverter type
Input rating
Output rating
Serial number
Control circuit terminal block
Front cover
Main circuit te rm inal block
Capacity plate
Wiring cove r
1.3 Installation of the Inverter
Enclosure surface mounting
Fix the front
cover and wiring
cover after
removing the m .
Leave enough clearances and
provide cooling measures.
3
Inverter type
Mounting inside enclosure
When containing two or more
inverters, ins tall them in parallel
and provide cooling measures.
Serial number
1
INSTALLATION AND WIRING
Installation of the Inverter
! Install the inverter under the following conditions:
Vertical mounting
Vertical
Ambient temperature and humidity
Temperature: -10 to 50
Humidity: 90%RH maximum
C C
Clearances
10cm or
more
1cm or
more
1cm or
more
10cm or
more
Clearances also necessary for
changing the cooling f an.
(1.5K or more)
! The inverter consists of precision mechanical and electronic parts. Never install or
handle it in any of the following conditions as doing so could cause an operation
fault or failure.
Direct sunlight
Vibration
(5.9m/s
2
max.)
High temperature,
high humidi ty
Oil mist,
Vertical mountin g (Wh en
mounted inside en closu re)
Transportation by
holding front cover
flammable gas,
corrosive gas,
fluff, dust, etc.
! Removal and reinstallation of the front
cover
Remove the front cover by pulling it
toward you in the direction of arrow.
To reinstall, match the cover to the inverter
front and in st all it straig ht.
FR-C520-0.1K to 0.75K FR-C520-1 .5K to 3.7K
! Removal and reinstallation of the wiring cover
The cover can be removed easily by pulling it toward
you.
To reinstall, fit the cover to th e in verter along the guides.
! Wiring of the RS-485 communication connector
When using the RS-485 connector to wire the cable, you
can cut off the lug of the wiring cover to wire it.
4
Horizontal placement
Mounting to
combustible material
Wiring
cover
Lug
1.4 Terminal Connection Diagram
! Three-phase 200V power input
Three-phase AC
power supply
External transis tor common
24VDC power supply
Contact input common (source)
*2
Input terminals
Personal
computer
Parameter un it
(FR-PU04)
CC-Link co m m u nication signal s
NFB
MC
Be careful not to shor t
PC-SD.
Forward rotation start
Reverse rota tion start
Multi-speed
selection
Sequence start
High
Middle
Low
Contact input common
Control input signals
(No voltage input allowed)
*4
RS-232C
-RS-485
converter
R
S
T
PC
STF
STR
RH
RM
RL
SQ
SD
Inverter
*5
(X0)
(X1)
(X4)
(X3)
(X2)
(X5)
SINK
*1
SOURCE
PU connector
(RS-485)
(Y0)
(Y1)
Terminal Connection Diagram
U
V
W
P1
*5
RUN
ALM
SE
Power factor improving
DC reactor
(FR-BEL: Option)
P
N
Jumper: Remove
this jumper when
FR-BEL is connected.
Running
Alarm
output
Open
Output
terminals *3
collector
output common
Motor
IM
Earth
(Ground)
Open
collector
output
1
DA
DB
DG
SLD
DA
DB
DG
SLD
: Main circuit terminal
: Control circuit terminal
SLD
PLC CC-Link
FG
Earth (Ground)
master module
REMARKS
*1. You can change the control logic between sink and source logic. Refer to page 12 for details.
*2. The terminal functions cha nge with input terminal funct ion selection (Pr. 60 to Pr. 63, Pr.
65, Pr. 505). (Refer to page 68)
(RES, RL, RM, RH, MRS, OH, STR, STF, SQ signal, without function selection)
*3. The terminal functions change with out put terminal function selection (Pr. 64, Pr. 506).
(Refer to page 69.) (RUN, OL, ALM signal, without function selection)
*4. Only either the personal computer (e.g. GX Developer) or parameter unit can be
connected to the PU connector.
*5. For details of the I/O device, refer to page 109.
CAUTION
To prevent a malfunction due to noi se, keep the signal cables more t han 10cm away
from the power cables.
5
INSTALLATION AND WIRING
Wiring of the Power Supply and Motor
1.5 Wiring of the Power Supply and Motor
1.5.1 Description of the main circuit terminals
Symbol T erminal Name Description
R/L1, S/L2, T/L3 Power input
U, V, W Inverter output
N/- DC voltage common
Power factor
P/+, P1
improving DC
reactor connection
Earth (Ground)
1.5.2 Layout and wiring of the main circuit terminals
FR-C520-0.1K, 0.2K, 0.4K, 0.75K
!
Connect to the commercial power supply.
Connect a three-ph ase squirrel-cage motor.
DC voltage common terminal. Not isolated from the
power supply and inv erter output.
Disconnect the jumper from t er m inal s P- P1 and
connect the optional po w er fac t or impr oving DC
reactor (FR-BEL).
For earthing (groundi ng) th e inverter chassis. Must
be earthed (grounded) .
FR-C520-1.5K, 2.2K, 3.7K
!
Jumper
P/+
P1
R/L1 S/L2 T/L3
Power supply
U V W
IM
Motor
R/L1 S/L2 T/L3
Power supply
P1
N/- P/+
U V W
IM
Motor
Jumper
N/-
CAUTION
•Always connect the power supply cables to R/L1, S/L2 and T/L3. Never
connect them to U, V and W since it will damage the inverter. (The phase
sequence need not be matched.)
•Connect the motor to U, V and W. When the forward rotation switch (signal) is
turned on at this time, the motor rotates in the counterclockwise direction as
viewed from the load shaft.
1.5.3 Cables, wiring lengths, crimping terminals, etc.
The following selection example assumes the wiring length of 20m.
1) FR-C520-0.1K to 3.7K
PVC
mm
Cables
2
AWG
Applicable
Inverter Type
FR-C520-
0.1K to
0.75K
FR-C520-
1.5K, 2.2K
FRC520-3.7K M4 1.5 5.5-4 5.5-4 3.5 3.5 12 12 4 2.5
Terminal
Screw
Tightening
Torque
Size
M3.5 1.2 2-3.5 2-3.5 2 2 14 14 2.5 2.5
M4 1.5 2-4 2-4 2 2 14 14 2.5 2.5
N•m
Crimping
Terminals
R, S, T U, V , WR, S, T U, V, W R, S, T U, V, WR, S, T U, V, W
Insulated
Cables
2
mm
6
Earthing (Grounding) Precautions
! Wiring length
100m maximum
CAUTION
•When the wiring length of the 0.1K or 0.2K is 30m or more, use the carrier
frequency at 1kHz.
•If the inverter-to-motor wiring distance is long, the motor torque will decrease
due to a voltage drop in the main circuit cables especially at low frequency
output. Use thick cables for wiring to make a voltage drop less than 2%.
1.6 Earthing (Grounding) Precautions
! Leakage currents flow in the inverter. To prevent an electric shock, the inverter and
motor must be earthed (grounded). (Class D earthing (grounding), earthing
maximum)
(grounding) resistance 100
! Use the dedicated earth (ground) terminal to earth (ground) the inverter. (Do not use
the screw in the casing, chassis, etc.)
Use a tin plated* crimping terminal to connect the earth (ground) cable. When
tightening the screw, be careful not to damage the threads.
*Plating should not include zinc.
! Use the thickest possible earth (ground) cable. Use the cable whose size is equal to
or greater than that indicated below, and minimize the cable length. The earthing
(grounding) point should be as near as possible to the inverter.
Motor Capacity
2.2kW or less 2(2.5)
3.7kW 3.5(4)
For use as a product compliant with the Low Voltage Directive, use PVC cable
whose size is indicated within parentheses.
! Earth (Ground) the motor on the inverter side using one cable of the 4-core cable.
Ω
2
(Unit: mm
Earth (Ground) Cable Size
200V class
)
1
CAUTION
If the inverter is run in the low acoustic noise mode, more leakage currents flow due to
fast switching operations than in the non-low acoustic noise mode. Always use the
inverter and motor after earthing (grounding) them. When earthing (grounding) the
inverter, always use its earth (ground) terminal.
7
INSTALLATION AND WIRING
Control Circuit
1.7 Control Circuit
1.7.1 Description of the control circuit terminals
Symbol
STF
STR
RH
RM
RL
Contact input
SQ
SD
Input signals
(*1)
PC
(*1)
ALM
RUN
Open collector
Output signals
SE
Terminal
Name
Forward
rotation
start
Reverse
rotation
start
Multispeed
selection
Sequence
start
Contact
input
common
(sink)
External
transistor
common
24VDC
power
supply
Contact
input
common
(source)
Alarm
output
Inverter
running
Open
collector
common
Description
Turn on the STF signal
to start forward rotation
and turn it off to stop.
Turn on the STR signal
to start reverse rotation
and turn it off to stop.
You can select mu lti pl e speeds (three
speeds).
Turn on the SQ signal to execute the
built-in PLC function. (RUN state of
the PLC) Turn off the SQ signal to stop
the built-in PLC function. (S TOP stat e
of the PLC)
Common terminal for contact i nputs (terminals STF,
STR, RH, RM, RL, SQ).
Isolated from terminal SE .
When connecting the transistor output (open collector
output) of a programm able controller (PLC), etc.,
connect the positive external power supply for
transistor output to this terminal to prevent a
malfunction due to un desirable current.
It can be used as a 24V 0.1A DC power output across
PC-SD terminals.
Acts as the common terminal of the contact input
signals when sourc e l ogi c is selected.
Low when the inverte r prot ective
function is activated a nd H i gh wh en
the inverter is not in error. (*2)
Low when the inverte r ou tp ut
frequency is the starti ng f re quency or
higher (factory-set to 0. 5H z and
changeable), and H ig h du ring stop or
DC injection brake op eration. (*2)
Common terminal for inverter running terminal RUN.
Isolated from terminal SD.
A stop
command is
given if STF
and STR
signals turn
on at the
same time.
The terminal
functions
change with
input terminal
function
selection (Pr.
60 to Pr. 63,
Pr. 65, Pr.
505). (*3)
The terminal
functions
change with
output
terminal
function
selection (Pr.
64, Pr. 506).
(*4)
Rating
Specifications
Input resistance
4.7kΩ
Open-time
voltage
21 to 27VDC
Short-time
current
4 to 6mADC
Controll ed by
open collector
output or 0V
contact signal
—
Voltage range
18 to 26VDC
Permissible load
current
0.1A
Permissible load
24VDC 0.1A
Permissible load
24VDC 0.1A
—
8
Control Circuit
Symbol
—
Terminal
Name
RS-485
connector
Description
• Compliant standard: EIA Sta nda rd RS-485
• Transmission form: Multidrop li nk system
• Communication speed: Maximum 19200bps
• Overall distance: 500m
Rating
Specifications
—
Communication
*1. D o not connect terminals SD and PC each other or to the ground.
For sink logic (fa ct or y setting), terminal SD acts as the commo n terminal of contact in put.
For source logic, terminal PC acts as the comm on terminal of contact input. (Refer to
page 12 for the way to switch between them.)
*2. Low indicates that the open collector ou tput transistor is on (conducts). High indicates
that the transistor is off (does not conduct).
*3. RL, RM, RH, MRS, OH , RES, STF, STR, SQ signal, without function sele ction (Refer to
page 68 for input terminal function selection.)
*4. R UN, OL, ALM signal, without function selection (Refer to page 69 for output ter minal
function selection .)
1
INSTALLATION AND WIRING
9
Control Circuit
1.7.2 Layout and wiring of the control circuit terminals
STR RL RM RH SQ RUNALMSTF
SD PC
Loosen the terminal scr ew and insert the cable into the
terminal.
Sc re w size : M3 (SD, PC, S E te rmina ls ),
Tightening torque: 0.5N•m to 0.6N•m (SD, PC, SE
SE
M 2 (o the r th a n on th e left)
ter minals )
0.22N•m to 0.25N•m (other than the
above)
CAUTION
Undertightening can cause cable disconnection or
malfunction. Overtightening can ca use a short circuit
Control circuit terminal block
or malfunction due to damage to the screw or unit.
Cable size : 0. 3mm2 to 0.75mm
Screwdriver: Small screwdriver
*Information on bar te rmi nals
Introduced products (as of April, '02): Phoenix Contact Co., Ltd.
T erminal Screw
Size
M3 (SD, PC, SE
terminals)
M2 (other than
above)
Bar terminal crimping tool : CRI M PFO X ZA3 (Phoenix Contac t Co., Lt d.)
(Tip thickness: 0.4mm/tip width: 2.5mm)
Bar Terminal Model
(With insulating
sleeve)
Al 0.5-6WH A 0.5-6 0.3 to 0.5
Al 0.75-6GY A 0.75-6 0.5 to 0.75
Al 0.5-6WH A 0.5-6 0.3 to 0.5
2
Bar Terminal Model
(Without insulating
sleeve)
Cable stripping size
Wire the stripped cable after
twisting it to preven t it from
becoming loose.
In addition, do not solder it. *
(mm)
SD, PC, SE
terminals
Other than
the above
6
5
Wire Size (m m2)
1)Terminals SD and SE are common terminals of the I/O signals. Do not earth
(ground) these common terminals.
2)Use shielded o r twisted cables for conne ction to the control circuit te rminals and run
them away fr om the main and po wer ci rcuits (inclu ding t he 200V rela y seque nce ci rcuit ).
3)The input signals to the control circuit are micro currents. When contacts are
required, use two or more parallel micro signal contacts or a twin contact to prevent
a contact fault.
CAUTION
When using the bar terminal (wi thout insulating sleeve), use care so that the twisted
wires do not come out.
10
1.7.3 Layout and wiring of the CC-Link terminals
The terminal block is laid out as shown below.
erminal screw size: M2.5
Control Circuit
Refer to page 36 for details.
DA DB DG
SLD
SLD FG
1
INSTALLATION AND WIRING
11
Control Circuit
1.7.4 Changing the control logic
The input signals are set to sink logic.
To change the control logic, the jumper
connector must be moved to the other
position.
! Change the jumper connector position
using tweezers, a pair of long-nose pliers,
etc. Change the jumper connector position
before switching power on.
CAUTION
•Make sure that the front cover is installed securely.
•The front cover is fitted with the capacity plate and the inverter unit with the
rating plate. Since these plates have the same serial numbers, always replace
the removed cover onto the original inverter.
•The sink-source logic change-over connector must be fitted in only one of
those positions. If it is fitted in both p ositions at the same time, the inverter
may be damaged.
1) Sink logic type
•In this logic, a signal switches on when a current flows out of the corresponding
signal input terminal.
Terminal SD is common to the contact input signals. Terminal SE is common to the
open collector output signals.
Power
supply
STF
STR
R
Inverter
RUN
R
AX40
1
R
R
SD
•Connecting a positive external power
supply for transistor output to terminal
PC prevents a malfunction caused by
an undesirable current. (Do not
connect terminal SD of the inverter
with terminal 0V of the external power
supply. When using terminals PC-SD
as a 24VDC power supply, do not
install an external power supply in
parallel with the inverter. Doing so may
cause a malfunction in the inverter due
to an undesirable current.)
AY40 transistor
output module
12
1
2
9
9
10
SE
24VDC
STF
STR
24VDC
Current flow
9
Inverter
24VDC
(SD)
PC
SD
Control Circuit
2) Source logic type
•In this logic, a signal switches on when a current flows into the corresponding signal
input terminal.
Terminal PC is common to the contact input signals. For the open collector output
signals, terminal SE is a positive external power supply terminal.
PC
Power
supply
STF
STR
R
R
•Connecting the 0V terminal of the external
power supply for transistor output to terminal
SD prevents a malfunction caused by an
undesirable current.
Inverter
RUN
SE
24VDC
AY80 transistor
output module
10
AX80
1
R
R
9
Inverter
9
1
2
24VDC
PC
STF
STR
SD
24VDC
(SD)
1
13
INSTALLATION AND WIRING
Control Circuit
1.7.5 RS-485 Connector
<RS-485 connector pin layout>
View A of the inverter (receptacle
side)
8) to 1)
View A
CAUTION
1. Do not plug the connector to a computer LAN board, fax modem socket,
telephone modular connector, etc. As they are different in electrical
specifications, the inverter may be damaged.
2.Pins 2 and 8 (P5S) ar e provided for th e parameter unit power supply. Do not
use them for any other purpose or when making parallel connectio n by RS485 communication.
3.Refer to page 79 for the communication parameters.
REMARKS
•The PU connector (PS-485) automatically recognizes whether the FR-PU04 or RS-485
communication is connected.
•Refer to page 38 for wiring of the inverter and computer using user program for RS-485
communication.
•Refer to page 35 for wiring of the inverter and personal computer using GX Developer for RS485 communication.
View A
1) SG
2) P5S
3) RDA
4) SDB
5) SDA
6) RDB
7) SG
8) P5S
1.7.6 Connection of the parameter unit (FR- PU04 )
Use the FR-CB2 parameter unit connection cable.
REMARKS
Refer to page 93 for the pa ra m et er s re la te d to parameter unit setting.
""
14
Input Terminal s
1.8 Input Terminals
1.8.1 Run (start) and stop (STF, STR)
To start and stop the motor, first switch on the input power supply of the inverter
(switch on the magnetic contactor, if any, in the input circuit during preparation for
operation), then start the motor with the forward or reverse rotation start signal.
POINT
With "1" factory-set in Pr. 507 "inverter operation lock mode setting", the start
signal is not enabled unless the SQ signal is on.
Set "0" in Pr. 507 when performing inverter operation only.
(Refer to page 138 for Pr. 507.)
(1) STF, STR
A connection is shown on the right.
1) The forward/reverse rotation signal is
used as both the start and stop signals.
Switch on either of the forward and
reverse rotation signals to start the
motor in the corresponding direction.
Switch on both or switch off the start
signal during operation to decelerate
the inverter to a stop.
2) The frequency setting signal may be
given by setting the required values in
Pr. 4 to Pr. 6 "three-speed setting"
(high, middle, low speeds), by setting
using a sequence l adder, or by setting
from CC-Link. (For three-speed
operation, refer to page 1 7. )
3) After the start s ignal has been i nput, the inverter starts operatin g when the fre quency s etting
signal reaches or exce eds the "starting frequency " set in Pr. 13 (factory-set to 0.5 H z) .
If the motor load torque is large or the "torq ue boos t" set in Pr. 0 is small, the inverter may be
overloaded due to insu fficient t or que.
If the "minimum frequency" set in Pr. 2 (factory setting = 0Hz) is 6Hz, for example, merely
entering the start signal causes the running frequency to reach the minimum frequency of 6Hz
according to the "acceleration time" set in Pr. 7.
4) To stop the motor, operate the DC injection brake for the period of "DC injection brake
operation time" set in Pr. 11 (factory setting = 0.5s) at not more than the DC injectio n brake
operation frequenc y or at not mo re th an 0. 5Hz.
To disable the DC injection brake function, set 0 in either of Pr. 11 "DC injection brake
operation time" and Pr. 12 "DC injection brak e voltage".
In this case, the motor is coated to a stop at not more than the frequency set in Pr. 10 "DC
injection brake op eration frequency " (0 to 120Hz va riable) or at no t more than 0.5Hz (when
the DC injection brake is not operated).
5) If the reverse rot ation signal is i nput during forwar d rotation or the f orward rotation s ignal is
input during reverse rotation, the inverter is decel erated and then switched to the opposite
output polarity without going through the stop mode.
Power
supply
NFB
Forward
rotation star t
Reverse
rotation start
Output frequency
Across STF-SD
(STR)
Connection Example
15
Inverter
R,S,T
STF (Pr.65="17")
STR (Pr.63= " 99 99")
SD
ON
Time
1
INSTALLATION AND WIRING
Input Termi na ls
DC Injection Brake and Coasting to Stop
Operation
Mode
DC
Injection
Brake
disconnected (*1)
DC injection brake
DC injection
brake
enabled
operated at not
more than "DC
injection brake
operation frequ ency"
set in Pr. 10
Coasted to a sto p at
DC injection
brake
disabled
not more than "DC
injection brake
operation frequ ency"
set in Pr. 10
*1: Also stopped by the key. Refer to page 71.
Starting frequency
Pr. 13
(*1)
0.5Hz
Output frequency
Start
signal
terminal
Across STF-SD
Across STR-SD
Output frequency
Start
signal
terminal
Across
STF-SD
Across
STR-SD
Forward-Reverse Rotation Switch-Over Timing Chart
External Operation
Pr. 79= "0", "2", "3"
Te rmina ls STF
(STR)-SD
Set frequency
changed to 0Hz
DC injection brake
DC injection
brake operated at
0.5Hz or less.
operated at not more
than "DC injection
brake opera t ion
frequency" set in Pr. 10
Coasted to a stop at
Coasted to a stop
at 0.5Hz or less.
not more than "DC
injection brake
operation frequency"
set in Pr. 10
STOP
RESET
DC injection brake enabl e d DC injection brake d isabled
ON
DC injection brake
operation
frequency Pr. 10
3Hz
0.5Hz
0.5s
DC injection
brake operation
time Pr. 11 (*3)
ON
(*2)
0.5Hz
0.5s
DC injection
brake operation
time Pr. 11 (*3)
Start/Stop Timing Chart
Starting
frequency
Pr.13
(*1)
0.5Hz
Start signal switched on while
DC injection brake is being
operated
Forward
rotation
ON
ON ON
3Hz
Reverse
rotation
0.5Hz
ON
Forward
rotation
PU Operation
Pr. 79= "0", "1", "4"
Set frequency
Stop key
changed to
DC injection
brake operated
at 0.5Hz or less.
Coasted to a
stop at 0.5Hz or
less.
DC injection brake not operated
(*4)
3Hz
Coasted to
a stop
ON
DC injection brake operation
(*4)
frequency Pr. 10
DC injection brake
3Hz
enabled
Time
Time
0.5s
DC injection brake operation
time Pr. 11 (*3)
0Hz
REMARKS
*1. The "st ar ting frequency" in Pr. 13 (factory-set to 0.5Hz) may be set between 0 and 60Hz.
*2. If the nex t start signal is giv en durin g DC injec tio n brake operati on, the D C inject ion brake
is disabled and restart is made.
*3. The "DC injection brake operation time" i n Pr . 1 1 ( factory-set to 0.5s) may be set between 0 and 10s.
*4. The frequency at which the motor is coas ted to a stop is not more t han the "DC injection
brake operation frequency" set in Pr. 10 (factory setting = 3Hz; may be set b et w een 0 and
120Hz) or not more than 0.5Hz.
*5. The "starting frequency" in Pr. 13, "DC injection brake operation time" in Pr. 11 and "DC
injection brake operati on f re quency" in Pr. 10 are the factory-set values.
16
Input Terminal s
S
M
s
1.8.2 External frequency selection (RH, RM, RL)
Up to three speeds may be selected for an
external command start according to the
combination of connecting the multi-speed select
terminals RH, RM and RL-SD, and multi-speed
operation can be performed as shown on the
right by shorting the start signal terminal STF
(STR)-SD.
Output frequency (Hz)
Speeds (frequencies) may be specified as
desired as listed below using Pr. 4 to Pr. 6.
RH
RM
RL
TF(STR)
Multi-Speed Setting
Speed
Speed 1
(high speed)
Speed 2
(middle
Speed 3
(low speed)
Terminal Input
RH-SD RM-SD RL-SD
Parameter
ON OFF OFF Pr.4
OFF
OFF OFF
Power
supply
ON OFF Pr.5
Forward
rotation
Reverse
rotation
ulti-speed
election
ON Pr.6
R
S
T
STF
STR
RH
RM
RL
SD
Inverter
Set Frequency
0 to 120Hz
0 to 120Hz
0 to 120Hz
U
V
W
Multi-Speed Operation Connection Example
CAUTION
For three-speed setting, selection of two or more speeds sets the frequency of the lower
speed signal.
Range
Motor
Speed 1
(high speed)
Speed 2
(middle speed)
Speed 3
(low speed)
Time
ON
ON
ON
ON
Reference
Page
59
IM
1
INSTALLATION AND WIRING
17
Input Termi na ls
1.8.3 Control circuit common terminals (SD, SE)
Terminals SD and SE are both common terminals (0V) for I/O terminals and are
isolated from each other.
Terminal SD is a common terminal for the contact input terminals (STF, STR, RH, RM,
RL, SQ).
Terminal SE is a common terminal for the open collector output terminals (RUN, ALM).
1.8.4 Signal inputs by contactless switches
If a transistor is used instead of a contacted
switch as shown on the right, the input
+24V
signals of the inverter can control terminals
STF, STR, RH, RM, RL, SQ.
STF, etc.
Inverter
SD
External Signal Input
by Transistor
REMARKS
•When using an external transistor connected with the external power supply, use terminal PC
to prevent a malfunction from occurring due to a leakage current. (Refer to page 12.)
•Note that an SSR (solid-state relay) has a relatively large leakage current at OFF time and it
may be accidentally input to the inverter.
18
How to Use the Input Signals (Assigned Terminals
A
(
RL, RM, RH, STR, SQ)
1. 9 How to Use the Input Signals (Assigned T erminals RL, RM, RH, STR, SQ)
These terminals can be
changed in function by
setting Pr. 60 to Pr . 63, Pr . 65,
Pr. 505.
Pr. 60 "RL terminal function selection"
Pr. 61 "RM terminal function selection"
Pr. 62 "RH terminal function selection"
Pr. 63 "STR terminal function selection"
Page 68
Pr. 65 "STF terminal function selection"
Pr. 505 "SQ terminal function selection"
1.9.1 Multi-speed setting (RL, RM, RH signals):
Pr. 505 setting
"0, 1, 2"
Pr. 60 to Pr. 63, Pr. 65,
• By entering frequency commands into the RL, RM and RH signals and turning on/off
the corresponding signals, you can perform multi-speed operation (three speeds).
(For details, refer to page 17.)
1.9.2 Output shut-off (MRS signal):
Pr. 60 to Pr. 63, Pr. 65, Pr. 505 setting
"6"
Short the output stop terminal MRS-SD during inverter output to cause the inverter to
immediately stop the output. Open terminals MRS-SD to resume operation in about
10ms. Terminal MRS may be used as described below:
(1) To stop the motor by
mechanical brake (e.g.
Motor coasted
to stop
electromagnetic brake)
Terminals MRS-SD must be
shorted when the mechanical
brake is operated and be opened
before motor restart.
(2) To provide interlock to disable
operation by the inverter
After MRS-SD have been shorted,
the inverter cannot be operated if
the start signal is given to the
inverter.
Across
MRS -SD
cross STF
STR)-SD
Output frequency
ON
ON
0.5Hz
Pr. 13
"starting
frequency"
(3) To coast the motor to stop
The motor is decelerated according to the preset deceleration time and is stopped
by operating the DC injection brake at 3Hz or less. By using terminal MRS, the
motor is coasted to a stop.
1.9.3 External thermal relay input:
Pr. 60 to Pr. 63, Pr. 65, Pr. 505 setting
"7"
1
INSTALLATION AND WIRING
When the external thermal relay or thermal relay built in
the motor (e.g. thermal protector) is actuated, the
inverter output is shut off and an alarm signal is given to
keep the motor stopped to protect the motor from
overheat. If the thermal relay contact is reset, the motor
is not restarted unless the reset terminal RES-SD are
shorted for more than 0.1s and then opened or power-on
reset is performed.
Inverter
OH
SD
U
V
W
Thermal relay
Motor
IM
The function may therefore be used as an external
emergency stop signal input.
19
How to Use the Input Signals (Assigned Terminals
A
(
RL, RM, RH, STR, SQ)
1.9.4 Reset signal:
Pr. 60 to Pr. 63, Pr. 65, Pr. 505 setting
"10"
Used to reset the alarm stop state established when the inverter's protective function
is activated. The reset signal immediately sets the control circuit to the initial (cold)
status, e.g. initializes the electronic overcurrent protection circuit. It shuts off the
inverter output at the same time. During reset, the inverter output is kept shut off. To
give this reset input, short terminals RES-SD for more than 0.1s. When the shorting
time is long, the operation panel or parameter unit displays the initial screen, which is
not a fault.
Operation is enabled after terminals RES-SD are opened (after about 1s).
The reset terminal is used to reset the inverter alarm stop state. If the reset terminal is
shorted, then opened while the inverter is running, the motor may be restarted during
coasting (refer to the timing chart below) and the output may be shut off due to
overcurrent or overvoltage.
Setting either of "1" and "15" in reset selection Pr. 75 allows the accidental input of the
reset signal during operation to be ignored.
(For details, refer to page 71.)
When motor is restarted
Across
RES-SD
cross STF
STR)-SD
during coasting, inverter
activates current limit to
start acceleration.
Coasting
Output frequency (Hz)
ON
ON
Coasting to stop
(Indicates motor speed)
Ordinary
acceleration
Coasting time
ON
T
T: Should be long er than the time
of coasting to stop.
CAUTION
Frequent resetting will make electronic overcurrent protection invalid.
1.9.5 Start (forward rotation) signal:
Pr. 65 set ting
Turn the signal on or off to bring the motor to a forward rotation start or stop.
(Refer to page 15 for details.)
20
"17"
How to Use the Input Signals (Assigned Terminals
RL, RM, RH, STR, SQ)
1.9.6 Sequence s t art:
Pr. 60 to Pr. 63, Pr. 65, Pr. 505 setti ng
"50"
Used to execute/stop (RUN/STOP) the built-in PLC function.
Short SQ-SD to execute (RUN) and open SQ-SD to stop (STOP).
Refer to page 100 for details.
1.9.7 No function:
Pr. 60 to Pr. 63, Pr. 65, Pr. 505 setting
"9998"
Disables the input terminal functions.
REMARKS
Refer to page 127 for the no function setting of the external terminal inputs in device D9149
"inverter operation sta tu s co nt ro l en able/disable setting".
1.9.8 Start (reverse rotation) signal:
Pr. 63 setting
"9999"
Turn the signal on or off to bring the motor to a reverse rotation start or stop.
(Refer to page 15 for details.)
1
21
INSTALLATION AND WIRING
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