Main
Instruction Manual
TOSVERT VF-A7
Safety precautions
Marking
Precautions
Danger
Warning
Handling in general
Transportation Installation
Wiring
Warning
even after source power is removed
About operation
When selecting the retry mode (Applicable to inverters)
About inspection and maintenance
About disposal of inverters
Sticking warning labels
Warning
Preface
Features
A-1
1.1 Checking the purchase
Make sure that the inverter delivered is exactly what you ordered.
Read this section first
Warning
Mandatory
1.3 Names and functions
1.3.1 Panel description
Panel indication
Page
Page
Page
Page
1.3.3 Detaching the terminal board front cover
1.4 Notes on the application of inverters
1.4.1 Notes on motors combined with inverters
Keep in mind the following notes when using the VF-A7 in combination with a motor.
Page
1.4.2 Notes on inverters
Over-current protective function
Inverter capacity
Power factor improving capacitor
Use of an inverter at a voltage other than the rated one
1.4.3 Influences of leakage currents and measures against it
Measures to be taken:
(2) Influences of a current leaking from a cable into other cables
1.4.4 Notes on installation Installation environment
Page
Installation
Installation place
Calorific values of inverters and amount of air to be ventilated
Control panel designed in consideration of possible influences of noise
Notes on the installation of two or more inverters in a single cabinet
Heat-sink going out attachment(simple type)
2. Connection
2.1 Cautions as to wiring
Prevention of radio noise
Notes on wiring
B-3
2.2 Standard connection
Prohibited
200V class: 0.4 22kW 400V class: 0.75 22kW
Motor
B-4
200V class: 30 55kW 400V class: 30 75kW
B-5
200V class: 75 90kW 400V class: 110 280kW
*
2.3 Explanation of terminals
2.3.1 Main circuit terminals
IM
Connecting a power source and a motor
Connecting peripheral devices
Fig.3
Fig.1 Fig.2
2.3.2 Control circuit terminals (sink logic(mi nus common))
F
RX
II
VI
FM
AM
OUT2
OUT1
CC
Sink logic (minus common)/source logic (plus co mmon) ... Switching I/O terminal
Switching logic
2.3.3 Serial RS485 communication connector
RXA 4 RXB 5 TXA 3
TXB 6 SG 2,8
3. Operating the inverter
Sensor vector control (Optional)
Pre-operation check the following check again before starting operation
C-3
3.2 Simple operation of the VF-A7 [1] [Speed control mode]
Slowdown stop
Example of typical connection
3.2.1Operation from the terminal(external signals) Terminal operation Start/Stop
Frequency
Frequency setting
Setting the operation frequency with an exter nal volume control
Speed setting mode selection parameter at .
Setting the frequency by voltage signals (0 t o 10 V)
Speed setting mode selection parameter at .
Setting the frequency by voltage signals ( 0 to 10 Vdc)
Speed setting mode selection parameter at .
Setting the frequency by voltage signals (0 to +/-10Vdc)
Speed setting mode selection parameter at
Ex.: To set the frequency by current signal (4 to 20 mAdc) through the terminal]
3.2.2 Operation from the control panel
Example of control panel operation
RUN
STOP
Selecting a stop mode with the control panel
3. 3 Simple operation of the VF-A7 [2] [Torque control mode]
[Operating panel operation] : [Operating panel+terminal operation] :
3.3.1 Setting a control mode [Torque control mode]
Page
3.3.2 Polarity of torque command
3.3.3 Operation from the terminal(e xternal signal)
[Torque control mode]
S t a r t / s t o p
Torque command
Torque setting by means of voltage signals (0 to 10 Vdc)
Set the torque reference selection at
3) Torque setting by means of voltage signals (0~10 Vdc)
Set the torque reference selection parameter at
Torque setting by means of voltage signals (0~10 Vdc) voltage signals 0-10Vdc
Torque setting by means of a volume control
5) Others
3.3.4 Operation from the control panel [Torque control mode]
Setting the start and stop modes
Selecting a torque command mode
Torque command
Example of control panel operation
1. Set the torque command.
2 Starts the motor 3. Stops the motor
RUN STOP
[Normal monitor mode]
4. Basic operation of the VF-A7
4.1.1 How to set basic parameters [Basic parameter]
ENT
D-3
[Basic parameter list]
4.1.2 How to set extended parameters
[Procedure for setting an extended parameter]
Example of parameter setting
4.1.3 Searching for changed parameters and changing their settings again
Notes on operation
Searching for a parameter and changing its setting
4.1.4 Parameters that cannot be changed during operation
4.1.5
Note on operation
D-8
Title Function
5.1 Setting the acceleration and deceleration times
Set the parameter (automatic acceleration/deceleration) at (enabled).
5. Explanation of the basic parameters
5.1.2 Manually setting the acceleration and deceleration times
(Manual setting)
5.2 Increasing starting torque/ energy-saving operation mode
Automatic V/f mode setting
To automatically increase the torque according to the load condition
Set the automatic V/f mode setting at (automatic torque boost + auto-tuning).
2)
To operate the inverter in energy-saving mode
If you fail to make the setting for vector control ...,
Set the motor control mode selection parameter at (constant torque)
5.3 Selecting an operation mode
: Operation command mode selection : Speed setting mode selection
Function
Preset speed operation
E-8
1) Setting the start, stop and operation frequencies with the operating panel
E-9
RUN STOP
r
mode selection
mode selection
5.4 Setting and calibrating meters
selection
FM Terminal meter selection
FM Terminal meter adjustment AM Terminal meter selection AM Terminal meter adjustment
[Terminal FM-related parameters] Title Function Adjustment range Adjustment level Default setting
Resolution
Calibrating a meter when the inverter is out of operation
Page
5.5 Factory default setting
Standard setting mode selection
[Set value]
[ 50 Hz standard setting ( = ) ]
[ 60 Hz standard setting ( = ) ]
Page
5.6 Forward/reverse run selection (for the panel control only)
Forward/reverse selection
5.7 Maximum frequency
Maximum frequency
5.8 Upper and lower limit frequencies
Upper limit frequency Lower limit frequency
5.9 Base frequency
Base frequency #1
5.10 Control mode selection
Motor control mode selection
1) Constant torque characteristic (Normal way of use)
[Set the motor control mode selection at (Constant torque characteristic)]
2) Setting suitable for fans and pumps
[Set the motor control mode selection at (Variable torque mode).]
3) To increase the starting torque
[Set the V/F control selection parameter at (Automatic torque boost).]
This control mode involves the setting of the motor constant.
4) To increase starting torque and the accuracy of operation - Vector control
[Set the V/f control selection parameter at (Sensorless vector control).]
7) To set the V/F characteristic arbitrarily
[
9) Notes on the vector control
5.11 Switching between speed control and torque control
Motor control mode selection
Input terminal selection #1 to #8
[Torque reference]
5.12 Manual torque boost - Increasing the torque produced at low speeds
Manual torque boost
[A general-purpose motor (other than motors intended for use with inverters)]
Explanation of terms
[Example of setting: VF-A7 2007PL with a 0.4 kW motor (rated current: 2A)]
[VF motor (motor intended for use with an inverter)]
2) Motor 150%-overload time limit
3) Inverter overload characteristic
Inverter's overload protective characteristic
5.14 Preset-speed operation (15 speeds)
3) Use of a preset-speed comman d in combination with another speed command
4) Setting the operation mode
6. Extended parameters
6.1 Frequency signals
Ry
6.1.1 Low-speed signal
6.1.2 Putting out signals of arbitrary frequencies
1) If detection frequency band + Speed reach setting frequency < Reference frequency
6.2 Selection of input signals
6.2.1 Changing standby signal function
1) Standard
2) Always-ON
3) Interlocked with terminal F (forward)/R (reverse)
6.2. 3 Assigning pr iority to the terminal board in panel operation mode
Priority command from terminal board (Operation command)
6.2.4 Binary/BCD signal selection(Expansion TB option unit)
Binary/BCD signal selection(Expansion TB option unit)
6.3 Selection of terminal functions
6.3.1 Keeping an input terminal function always active (ON)
6.3.2 Changing input terminal functions
6.3.3 Signal on completion of acceleration/deceleration (OUT 2)
Page
6.4 Basic parameters #2
6.4.1
6.5 V/f 5-point setting
6.6 Speed/torque command gain and bias
6.6.1 Using two types of frequency (speed) commands
Frequency reference
6.6.2 Setting frequency command characteristics
6.6.3 Setting torque reference characteristics
6.7 Operation frequency
6.7.1 Start-up frequency and End frequency
0Hz dead band frequency
Start-up frequency Stop frequency
6.7.2 Operating by means of reference signals
6.8 DC injection braking
6.8.1 DC injection braking
F-16
[D.C. braking under normal conditions]
(Forward/reverse DC braking priority control =[OFF])
6.8.2 Motor shaft fixing control
Motor shaft fixing control
6.8.3 Zero-speed stop mode selection
Zero-speed stop mode selection
6.9 Jog run
Jog run frequency Jog stop control
6.10 Jump frequency
6.11 Preset-speed #8 15
Preset-speed #8 #15
6.12 PWM carrier frequency
PWM carrier frequency
6.13 Trip-less enhancement
6.13.1 Auto-restart (restart during free-run (coast))
Warning
Step 1: Set the control method of Auto-restart
1) Restart after a momentary power failure
2) Restart of coasting motor (Motor speed search function)
Step 2: Set the mode of Auto-restart
Caution!
Step 3: Set the property of Auto-restart
1) Case =
/
6.13.2 Regenerative power ride-through control / Deceleration stop
Deceleration stop Ride-through time
Deceleration time
6.13.3 Retry function
Retry selection
6.13.4 Dynamic (regenerative) braking - To urgently stop the motor
1) An internal braking resistor (for 3.7kW model and smaller)
2) An external braking resistor (optional)
Page
F-28
3) Selection of braking resistor option and braking unit
Type
4) Connectable braking resistors and their minimum resistances
6.13.5 Avoiding over-voltage trip
6.13.6 Adjusting the output voltage and voltage compensation
F-30
=
] [
6.13.7 Prohibiting the reverse operation
Reverse-run prohibition
[Parameter setting]
Caution!
6.14 Drooping control
6.15 Function for crane/hoist
6.16 Commercial power/inverter switching
Page
6.17 PID control
6.18 Speed feedback/positioning control
6.19 Preset speed operation mode
6.20 Setting motor constants
Warning
[Selection 1: Setting by the automatic V/f mode]
[Selection 2: Individually setting the vector control and the auto-tuning]
Set the auto-tuning (Automatic tuning execution)
[Selection 3: Individually setting the vector control and the manual tuning]
Step 2 for the adjustment of .
Step 1: Setting the rating of the motor
Step 2: Setting motor constants
Examples of setting auto-tuning
6.21 Torque control
6.21.1 Torque reference
6.21.2 Torque reference filter
Torque reference filter
6.21.3 Speed limits in torque control mode
Setting by means of external signals
6.21.4 Torque bias and load sharing gain
Page
6.22 Torque limit
Setting
(1) Power running /regenerative torque limit
Page
(2) Positive/negative torque limits
[Positive torque limit]
[Negative torque limit]
Page
6.23 Secondary acceleration/deceleration
6.23.2 Switching of acceleration/deceleration #1, 2, 3 and 4
3) Switching with terminals - Switching acc/dec times by means of external terminals
Acceleration/deceleration patterns
6.23.3 Minimum acceleration/deceleration times
Acceleration/deceleration lower limit
6.24 Pattern run
F-55
Basic operating
Monitor displayed during pattern run
Note) To put out the signals to the terminal OUT2, select the parameter
.
Page
6.25 Protection functions
6.25.1 Motor over road protection level adjust / motor types
Motor over road protection level #1 Overload reduction start-up frequency
6.25.2 Setting of current stall
Stall prevention level
6.25.4 Emergency stop
Emergency stop Emergency DC injection braking control time
1) Emergency stop by terminal operation
2) Emergency stop by panel operation
6.25.5 Overload reduction start-up frequency
6.25.7 Action at low currents
Low-current trip Low-current detection level Low-current detection time
6.25.8 Detection of output phase failure
Detection of output short-circuit during start-up
Adjustment of detection pulse for output short-circuit during start-up
6.25.10 Cooling fan control mode selection
Cooling fan control mode
6.25.11 Cumulative operation time alarm
Cumulative operation time alarm setting
6.25.12 Over-voltage stall protection level
Over-voltage stall protection level(high response) Over-voltage stall protection level
6.25.13 Under-voltage trip
Under-voltage trip mode Under-voltage detection time
6.25.14 UV stall level
6.26 Special analog input
6.27 Over-ride
Over-ride addition input selection Over-ride multiplication input selection
Output frequency = Reference + Over-ride (VI input [Hz])
Output frequency = Reference + Over-ride(VI input [Hz])
Output frequency = Reference {1 + Over-ride(VI input [%] / 100)}
Output frequency = Reference {1 + Over-ride( [%] / 100)}
6.28 Meter output
6.28.1 Setting of meter outputs
AM terminal meter selection AM terminal meter adjustment
6.28.2 Setting of optional meter outputs
6.28.3 Pulse output to meters
6.29.5 Changing items displayed in status monitor mode
6.29.6 Switching basic parameters
Selection of panel V/f1, 2, 3 or 4
6.29.7 Selecting a control panel stop pattern
Panel stop pattern
1) Slowdown stop
2) Free-run stop
6.29 .8 Resetting the inverter from the control panel
6.29.10 Canceling PID control in panel operation mode
Panel PID control OFF
6.29 .11 Setting a torque command in panel operation mode
Panel torque reference
6.29.12 Drooping control in panel operation mode
6.29.14 Restricting or prohibiting key operation
Panel operation prohibition
Setting
Canceling methods
6.30 Communication function (RS485/common serial)
6.30.1 Common serial optional device
Page
6.30.2 Using the RS485 port fitted as standard
Page
Page
G-1
7. 1. External Operation
7. OPERATION WITH EXTERNAL SIGNAL
7. 2 Applied operation with input and output signals (operation by the terminal board)
7. 2. 1 Functions of input terminals (in case of sink logic)
Inverter
Page
7. 2. 2 Functions of output terminals (in case of sink logic)
G-6
Output terminal function(open collector, relay outputs) settings and detection levels
Table of output terminal functions and detection levels
G-7
G-8
7. 2. 3 Setup of input/output terminal operation time
Setup of response time
7. 2. 4 Analog input filter
Response time setting
7. 3 Setup of external speed command (analog signal)
[Control terminal board]
Setting of analog input terminal functions
G-11
7. 3. 1 Setup by analog input signals (RR terminal)
Title Function Adjustment range Default value Setup value
Speed setting mode selection (RR) (RR)
G-12
7. 3. 2 Setup by analog input signals (VI/II terminal)
Speed setting mode selection (RR) (VI/II)
G-13
7. 3. 3 Setup by analog input signals (RX terminal)
Setup value
Speed setting mode selection (RR) (RX)
*
Motor
8. Monitoring operation status
MON
Information on input terminals
Information on output terminals
Type of connected option
Total (accumulated) operation hours
8. 2 Changing status monitor function
Changing indication of status with power on
Standard monitor mode Standard monitor indication selection
Changing contents of status monitor indication
Page
8. 3 Indication in trip status
Details of indications of trip status
Examples of reading out trip data
8. 4 Indication of alarm, pre-alarm, etc...
9. Selection of peripheral devices
I-1
Mandatory
9. 1 Selection of wiring equipment
I-2
Selection of wiring equipment
Inverter model
9. 2. Installation of electromagnetic contactor
Electromagnetic contactor in the primary circuit
Note on wiring
Electromagnetic contactor in the secondary circuit
Note on wiring
9. 3. Installation of overload relay
I-5
9. 4 Application and functions of options
IM
N.F.
Separate type options shown below are prepared for the inverter VF-A7
Sorts of separate-type options
I-6
I-7
I-8
Option should be used under the condition of 9600 bps or less ().
I-9
Selection table of separate-type options
I-10
9. 5 Optional add-on cassettes
Table of optional add-on cassettes
Table of optional add-on cassettes
Functions of optional add-on cassettes
Vector option unit
Page
I-12
9. 6 Board options
Table of board options
Option name Function, purpose Model Remarks VEC002Z
PG feedback board
VEC003Z
9.7
Before installing optional add-on cassette or board option
9.7.1 Case 1
9.7.1 Case 1
Mandatory
9.7.2 Case 2
9.7.3 Case 3
10. Table of parameters
J-1
1. Basic parameters (1/2)
J-2
1. Basic parameters (2/2)
J-3
2. Extended parameters
[1] Frequency signal
[2] Input signal selection
[3] Terminal function selection (1/2)
J-4
[3] Terminal function selection (2/2)
[4] Terminal response time setup
J-5
[5] Basic parameters #2
[6] V/f 5-point setting
J-6
[7] Speed/torque reference gain/bia s setup (1/2)
J-7
[7] Speed/torque reference gain/bias setup (2/2)
[8] Operation frequency
[9] DC injection braking
[10] Jogging operation
J-8
[11] Jumper frequency
[12] Preset speed operation frequency (8- to 15-stage speed)
[13] PWM carrier frequency
[14] Tripless intensification setup (1/2)
J-9
[14] Tripless intensification setup (2/2)
[15] Drooping control
[16] Functions for lift (1/2)
J-10
[16] Functions for lift (2/ 2)
[17] Commercial/inverter switching function
[18] PID control
[19] Speed feedback/positioning control
J-11
[20] Vector control
[21] Preset-speed operation mode
J-12
[22] Motor constant
[23] Torque control
J-13
[24] Torque limit
[25] Speed/torque reference gain/bias setup #2(1/2)
J-14
[25] Speed/torque reference gain/bias setup #2(2/2)
[26] Secondary acceleration/deceleration
J-15
[27] Pattern run (1/2)
J-16
[27] Pattern run (2/2)
J-17
[28] Protection functions
J-18
[29] Special analog input
[30] Over-ride
[31] Meter output (1/2)
J-19
[31] Meter output (2/2)
[32] Control panel parameters
J-20
[33] Communication function(1/2)
J-21
[33] Communication function(2/2)
[34] Reservation area
(reference section): Refer to the designated section of the inverter's individual manual.
J-22
Contents of monitor indications
J-23
Monitor FM/AM/pulse output function selection
J-24
Input terminal function setting (1/2)
J-25
Input terminal function setting (2/2)
J-26
Output terminal function setting (1/2)
J-27
Output terminal function setting (2/2)
J-28
[Default settings]
E6580988
11. Specifications by types
K-1
11. 1 Standard specifications by types
1) Standard specifications by types (small/medium capacity types)
K-2
2) Standard specifications by types (large capacity types)
K-3
4) Common specifications
(Contin ued on the following page)
K-4
11.2 External dimensions and mass
External dimensions and mass
K-6
Outline drawings
Note)VFA7-2004PL and -2007PL have no cooling fan.
Drawing A Drawing B
Note)VFA7-2185P, -2220P, -4185P, -4220P have cooling fan in the upper part.
Drawing C Drawing D
Dimensions for heat-sink going out attachment(simple type)
12.
Trip information and countermeasures
Prior to service call
12. 1
L-1
L-2
(Continued on the following page)
L-3
L-4
[Message] The following are messages only. No trip is developed.
Same as (over-voltage)
Overload alarm Same as / (overload) Overheat alarm Same as (overheat)
12. 2 Method of resetting causes of trip
12. 3
In the case motor does not run in spite of no trip message appearing ...
L-7
12. 4 How to check other troubles
Measures against trouble with parameter setting
13. Regular inspection and maintenance
13.1 Regular inspection
Check points
13. 2 Periodical inspection
Points of inspection
Replacement of expendable parts
Standard period of years to replace main component parts
13. 3 When making a service call
13. 4 When retaining the inverter out of operation
14. Warranty
15. When disposing the inverter