Basic Parameters Extended
Connection
Peripheral Units
Symbols Meaning
Precautions
Limited applications
Marking
Handling in general
Transportation・Installation
Wiring
About operation
About inspection and maintenance
When selecting the retry mode Applicable to inverters
About disposal of inverters
Sticking warning labels
Ⅱ． Preface
Features
200V-3.7kW
Type Form Specification code
Package Name plate
Special
Panel description
Indication number
Panel indication
Indication alphabet
Page
Grounding terminal
VFA7-2185P, 2220P VFA7-4185P, 4220P
VFA7-2300P, 4300P VFA7-4370P1～4550P1
Page
Page
P24
Detaching the terminal board front cover
Adjustment of overload protection level
Comparison with commercial power operation
Operation in low speed ranges
High-speed operation at a frequency of 60 Hz or over
Load producing negative torque
Braking of a motor after power shutoff
Motor with a braking system
Over-current protective function
Power factor improving capacitor
Inverter capacity
Use of an inverter at a voltage other than the rated one
Influences of leakage currents and measures against it
Power supply Inverter
Measures to be taken
Power supply
Installation environment
Resistor
Installation place
Installation
Heat radiation area Required Motor Inverter
Applicable Calorific value
For closed-type
Page
Normal attachment Heat-sink going out attachment Simple type
Heat-sink going out attachmentsimple type
Inverter, or the inverter could cause a shock or a fire
Connection
Prevention of radio noise
Standard connection
Standard connection diagram for sink logicminus common
Motor Main circuit
Control panel
Control Circuit
＊１ R20
Control
R20 R46
R46 R41
Main circuit terminals
Explanation of terminals
Inverter internal circuit
Terminal symbol
R0, S0 R46, R41, R20, S20
R20 S20 P0, PA, PB, PC, PA1,PB1,PR1
Control circuit terminals sink logicminus common
Output Default setting Output current. Connect a 1mAdc
Output Default setting Operation frequency command
Input Function Electrical Inverter internal
Connect a 1mAdc full-scale ammeter or a
Input Common P24 Output Common CC
Switching logic
Common Input
Common Programmable Inverter Controller
Serial RS485 communication connector
Could get a shock
Motor is at a standstill, or you could get a shock
Sensor vector control Optional
Control modes of the VF-A7 inverter
1Operation from the terminalexternal signals
Simple operation of the VF-A7 1 Speed control mode
Example of typical connection
Speed setting mode selection parameter at
Frequency setting
）Setting the frequency by voltage signals 0 to 10
）Setting the frequency by a current signal 4 to 20 mA
）Setting the frequency by voltage signals 0 to +/-10Vdc
）Setting the frequency by voltage signals 0 to 10 Vdc
Speed setting mode selection parameter at
：Start the motor
Operation from the control panel ［Control panel operation］
Example of control panel operation
Selecting a stop mode with the control panel
Setting a control mode
Simple operation of the VF-A7 2 Torque control mode
Mode setting parameter is set at Running
When the motor is out of operation. If the monitor display
S4 Control mode Switching RR switching
Polarity of torque command
Torque command
Operation from the terminalexternal signal
Torque control mode
Start/stop
Torque setting by means of voltage signals 0~10 Vdc
Torque setting by means of current signals 4 to 20 mAdc
）Torque setting by means of voltage signals 0~10 Vdc
）Torque setting by means of a volume control
Others
Selecting a torque command mode
Setting the start and stop modes
Torque command
Operation from the control panel
Example of control panel operation
Set the torque command
ＲＵＮ ：Starts the motor
Ｓｔｏｐ ：Stops the motor
Speed control mode
Setting parameters Setting monitor mode
Torque control mode
Status monitor mode Setting monitor mode
Procedure for setting a basic parameter
How to set basic parameters Basic parameter
Basic parameter list
Procedure for setting an extended parameter
How to set extended parameters
When the motor is out of operation.If the monitor
Example of parameter setting
Display mode setting parameter is set at
Running frequency
Searching for a parameter and changing its setting
Basic parameters
Parameters that cannot be changed during operation
AM terminal meter adjustment
FM terminal meter selection FM terminal meter adjustment
Optional analog terminal #1 meter adjustment
Optional analog terminal #2 meter adjustment
Automatic acceleration/deceleration
Setting the acceleration and deceleration times
＝
･ Function
Change the parameter setting to automatic
Manually setting the acceleration and deceleration times
Acceleration/deceleration enabled by pressing key
Time s
：Automatic V/f mode setting
Increasing starting torque/ energy-saving operation mode
If you fail to make the setting for vector control
VF-A7 inverter has been set to this control mode by default
Selecting an operation mode
Preset speed operation
Mode selection
Operation command
Speed setting mode
Title Function Set value
Speed setting
Panel stop pattern
Title Function Adjustment range
Setting and calibrating meters
・Function
Terminal FM-related parameters
Calibrating a meter when the inverter is out of operation
Resolution
Return the parameter setting to output current display
By setup, before the needle of meter begins to sway
Frequency display mode.If the monitor display mode setting
Set the parameter at fixed output for meter
：Standard setting mode selection
Factory default setting
Hz standard setting =
Hz standard setting =
Reset of user-defined parameters =
Factory default setting =
Trip clear =
Clearing accumulating operation time =
Maximum frequency
Parameter setting
：Forward/reverse selection
：Maximum frequency
Base frequency
Upper and lower limit frequencies
：Upper limit frequency ：Lower limit frequency
：Base frequency #1
：Motor control mode selection
Control mode selection
Constant torque characteristic Normal way of use
Motor control
：The torque Boost rate is adjusted
Setting suitable for fans and pumps
To increase the starting torque
Automatically
Change the parameter setting to Sensorless vector
Value. Default setting Constant torque
Control by pressing the key
5-point setting
To set the V/F characteristic arbitrarily
※100% adjustment value 200V class 200V,400V class
This control mode involves the setting of the motor constant
： Motor control mode selection
Switching between speed control and torque control
Speed setting
～
Common serial communication option
Torque reference
Communication add-on cassette option
Binary/BCD inputoptional
Parameter Title Function Adjustment range
Setting the electronic thermal protective function
Manual boost ～ %
Setting the motor overload protection level #1
Setting the electronic thermal protective function
Explanation of terms
Overload stallSoft stall
Overload reduction start-up ～ Hz
Setting of motor overload start level
×1.0 ×0.6
Inverters overload protective characteristic
Inverter overload characteristic
Motor 150%-overload time limit
Setting preset-speed frequencies
Preset-speed operation 15 speeds
Start/stop
Reverse run command
Forward run command
Preset-speed #1
Preset-speed #2
Setting the operation mode
Low-speed signal
Frequency signals
・Output terminal setting
・Function
・Function
Putting out signals of arbitrary frequencies
P24-OUT2
Changing standby signal function
Selection of input signals
Standard
Always-ON
Forward
［ Disabled Terminal board has no priority ］
Reverse
=Stop
terminal board has priority Enabled
Priority command from terminal board Operation command
Setting value Jog run
：Binary/BCD signal selectionExpansion TB option unit
Binary/BCD signal selectionExpansion TB option unit
Forced JOG forward rotation
Input terminal selection #8S4
Selection of terminal functions
Signal on completion of acceleration/deceleration OUT
Keeping an input terminal function always active on
Changing input terminal functions
Response times of input/output terminals
Changing output terminal functions
Refer to 7.2.2 for details
Refer to 7.2.3 for details
S1：V/f switching #1 S2：V/f switching #2
Setting of switching terminals
Basic parameters #2
OFF
S1V/f switching #1 S2V/f switching #2 Parameters selected
Using two types of frequency speed commands
Speed/torque command gain and bias
has priority
has priority
Frequency reference
Command selected with
Setting torque reference characteristics
Setting frequency command characteristics
Operation frequency
Operating by means of reference signals
Start-up frequency and End frequency
3 0Hz dead band frequency
DC injection braking
DC injection braking
：Motor shaft fixing control
Motor shaft fixing control
Braking under normal conditions
Forward/reverse DC braking priority control =OFF
：Zero-speed stop mode selection
Zero-speed stop mode selection
LED display lights lights
～ Hz
：Jog run frequency ：Jog stop control
Jog run
～ Hz
Example of jog run
～ ：Preset-speed #8～#15
Preset-speed #8～15
Jump frequency Jumping resonant frequencies
Refer to 5.14 for details
Trip-less enhancement
PWM carrier frequency
：PWM carrier frequency
Restart after a momentary power failure
Set the mode of Auto-restart
Set the control method of Auto-restart
Restart of coasting motor Motor speed search function
Adaptation for elevator applications
1Case ＝
Set the property of Auto-restart
Regenerative power ride-through control / Deceleration stop
Case =
Case =～
：Retry selection
Retry function
An internal braking resistor for 3.7kW model and smaller
Dynamic regenerative braking To urgently stop the motor
Dynamic braking resistor capacity
～ Ω
Any value
An external braking resistor optional
Class Capacity kW
120W 70Ω 200 120W 40Ω 400 120W 150Ω 100
PBR resistor capacity
When using a braking resistor without thermal fuse
Supply
～ Ω Any value
Connectable braking resistors and their minimum resistances
Selection of braking resistor option and braking unit
Type
Avoiding over-voltage trip
Adjusting the output voltage and voltage compensation
：Reverse-run prohibition
Prohibiting the reverse operation
Drooping Gain
Drooping control
Dead band Frequency
Speed at the drooping gain ～ Hz
Function for crane/hoist
Commercial power/inverter switching
Timing chart
PID control
～ ：Preset speed operation modes
Speed feedback/positioning control
Selection 1 Setting by the automatic V/f mode
Setting motor constants
Set the auto-tuning ＝ Automatic tuning execution
Refer to 5.2 for details of this setting
Change the parameter setting to Automatic tuning
Setting parameter is set at Running frequency
Motor is out of operation. If the monitor display momde
Press the Enter key to activate the parameter
Setting the rating of the motor
①Slip frequency gain
Setting motor constants
Inverter VFA7 2037PL Motor 7kW, 4P, 60Hz Selection
Examples of setting auto-tuning
Torque reference
Torque control
～20mAdc ⇒ II terminal
～10Vdc ⇒ RR terminal
Torque reference filter
Voltage signal 0 ～± 10Vdc
：Torque reference filter
⇒ RX terminal
Setting with the control panel
Speed limits in torque control mode
Setting of forward speed limit level
Setting of reverse speed limit level
Selection of external signals
Setting by means of external signals
Torque bias and load sharing gain
―― 40 ～20mA
× ＋
Voltage signals Current signals
Power running /regenerative torque limit
Setting
Setting of power running torque
Setting of regenerative torque
Limiting the torque with external signals
Power running Regenerative
Regenerative Power running
Positive/negative torque limits
Torque Limit #1
Positive torque limit
RRvolume/ voltage
Negative torque limit
Selection Regenerative
Torque Limit
Secondary acceleration/deceleration
Slowly in weak-field areas where it
Motor needs to be speeded up to
Suitable for the operation
Selection with parameters
Switching of acceleration/deceleration #1, 2, 3
Acc/dec switching #1 Acc/dec switching #2
Output freq. Hz Setting freq
Minimum acceleration/deceleration times
Parameter setting
Acceleration/deceleration patterns
：Acceleration/deceleration lower limit
Pattern run
Monitor displayed during pattern run
＜Basic operating＞
～
④ ：select pattern group #4 Parameter setting
Output frequency Hz Setting frequency Step trigger signal
Setting of current stall
Motor over road protection－level adjust / motor types
Protection functions
Inverter trip holding
Overload reduction start-up frequency
Emergency stop
Motors 150%-overload time limit
Emergency stop by terminal operation
Action at low currents
Detection of output phase failure
Over-torque trip
Cumulative operation time alarm
Cooling fan control mode selection
：Cooling fan control mode
：Cumulative operation time alarm setting
Over-voltage stall protection level
System-supporting sequence B-timer
Under-voltage trip
UV stall level
Special analog input
Additive over-ride
Over-ride
Output frequency = Reference + Over-rideVI input Hz
Output frequency = Reference + Over-ride VI input Hz
Output frequency = Reference × 1 + Over-rideVI input %
Output frequency = Reference × 1 + Over-ride %
Setting of optional meter outputs
Setting of meter outputs
Meter output
Pulse output to meters
：Prohibition of parameter setting
Prohibiting the change of parameter settings
：Current / voltage display mode
Control panel parameters
：Frequency free unit magnification
Display the motor speed and the load speed
Display of the rotating speed of the motor
Display of the speed of the load
Switching basic parameters
Changing items displayed in status monitor mode
：Selection of panel V/f1, 2, 3 or
Time 0.01 s
Panel reset function
Resetting the inverter from the control panel
Selecting a control panel stop pattern
：Panel stop pattern
Setting a torque command in panel operation mode
Canceling PID control in panel operation mode
Drooping control in panel operation mode
Override in panel operation mode
Canceling methods
Setting
Restricting or prohibiting key operation
：Panel operation prohibition
Common serial optional device
Communication function RS485/common serial
＜Computer link＞
＜Inter-drive communication＞
Operation command ～ Mode selection
Setting of operation command common serial
Terminal block enabled
Using the RS485 port fitted as standard
：Wiring ：Data （Master→slave）
：Wiring ：Data （Host→Inverter）
Inter-drive communications
Setting of speed reference RS485
Setting of operation command RS485
External Operation
Operation with External Signal
Functions of input terminals in case of sink logic
Setting of contact input terminal function
Control terminal board
Connection method
Example of use Push-type operation stop
Inverter
Acc/dec, V/f, torque limit #2
Table of contact input terminal function settings
Acc/dec, V/f, torque limit #3
Symbol Title Function Adjustment Default setting
Setting of output terminal functions
Low speed signal
Functions of output terminals in case of sink logic
Parameter setting
Or detected
OFF All the alarms above are cancelled
Over travel On Over running
Output of the designated data in 7 bits
Completion of positioning On Positioning has been completed
OFF in positive logic
Setup of response time
Setup of input/output terminal operation time
Response time setting
Analog input filter
Setting of analog input terminal functions
Setup of external speed command analog signal
Control terminal board
Title Function Adjustment range
Setup by analog input signals RR terminal
～
10V VI terminal
Setup by analog input signals VI/II terminal
Setup by analog input signals RX terminal
Status monitor
Status monitor mode
Information on input terminals
Type of connected option
Information on output terminals
Total accumulated operation hours
Changing contents of status monitor indication
Changing indication of status with power on
Changing status monitor function
01kW
FE30 Output power
1kW
Details of indications of trip status
Indication in trip status
Examples of reading out trip data
Indication of alarm, pre-alarm, etc
Failure, short-circuit or electric leak
Selection of wiring equipment
Inverter model
Selection of wiring equipment
Electromagnetic contactor in the primary circuit
Installation of electromagnetic contactor
Electromagnetic contactor in the secondary circuit
Installation of overload relay
Sorts of separate-type options
Application and functions of options
VF-A7
Motor end surge
RS-232C ⑬ communication converter unit Model RS2001Z
RS-232C Communication Converter cable
Selection table of separate-type options
Table of optional add-on cassettes
Optional add-on cassettes
Functions of optional add-on cassettes
Table of optional add-on cassettes
＊ In a set with SBP001Z
②Expansion TB option unit
＊ In a set with SBP002Z
Board options
Installation of board option
Table of board options
Functions of board options
Case
Before installing optional add-on cassette or board option
Mandatory
Prepare for installing according to 9.7.1, 1 to
Case 2-A. When PG feedback function is used
Case 2-B. When PG feedback function is mot used
Preparation is not needed
Basic parameters 1/2
Basic parameters 2/2
Input signal selection
Frequency signal
Extended parameters
Terminal function selection 1/2
Terminal function selection 2/2
Terminal response time setup
Basic parameters #2
Point Setting
Speed/torque reference gain/bias setup 1/2
Operation frequency
Speed/torque reference gain/bias setup 2/2
Braking
Operation
Tripless intensification setup 1/2
Preset speed operation frequency 8- to 15-stage speed
Jumper frequency
PWM carrier frequency
Control
Tripless intensification setup 2/2
For lift 1/2
Functions for lift 2/2
Commercial/inverter switching function
PID control
Speed feedback/positioning control
Vector control
Preset-speed operation mode
Torque control
Motor constant
Torque limit
Speed/torque reference gain/bias setup #21/2
Secondary acceleration/deceleration
Speed/torque reference gain/bias setup #22/2
Pattern run mode Patterned operation canceled during stop
Pattern run selection Disabled, 1 Enabled
Continuation mode
Preset-speed #1 operation
Preset-speed #1 operation time ～8000 s / min
Preset-speed #2 operation time Ditto
Protection functions
Over-ride
Special analog input
Meter output 1/2
Control Panel parameters
Meter output 2/2
Communication function1/2
Reservation area
Communication function2/2
［Contents of monitor indications］
Monitor FM/AM/pulse output function selection
Input terminal function setting 1/2
= = =～ =
［Input terminal function setting 2/2］
104 105
106 107 VI/II terminal priority 108 109
［Output terminal function setting 1/2］
［Output terminal function setting 2/2］
PWM
Default settings
Standard specifications by types
Standard specifications by types large capacity types
Common specifications
Process, upper/lower limits
Fault
Causes
Digit
External dimensions and mass
External dimensions and mass
Drawing a Drawing B
Outline drawings
Drawing C Drawing D
Drawing E Drawing F
Dimensions for heat-sink going out attachmentsimple type
･ Decrease setting value
Indication Contents Expected causes Countermeasures
Also reset the
･ Extend acceleration time #1
Initial read-error
･ Reset the inverter
Main RAM fault
Main ROM fault
･ If undervoltage is detected, set
Presence or absence of parameter trip can be selected
Setting signal apart from each
～ Caution! ～
Method of resetting causes of trip
Make a service call
Is input power Input power Correct?
Is LED on
RUN/STOP key
Measures against trouble with parameter setting
How to check other troubles
Check points
Regular inspection
Inspection method
By feel touch
Periodical inspection
Dealer for replacement of part
Points of inspection
･Dont replace any component part
Standard period of years to replace main component parts
Replacement of expendable parts
When retaining the inverter out of operation
When making a service call
Warranty
Plastics
Blasting during incineration
Disposing manner
