Mitsubishi Electric FR-A7AX E kit-SC User manual

INSTRUCTION MANUAL
1
2
3
4
INVERTER
Plug-in option
FR-A7AX
16 bit digital input function
PRE-OPERATION INSTRUCTIONS
INSTALLATION AND WIRING
CONNECTION DIAGRAM AND TERMINAL
PARAMETERS
A7AX.book1ページ２００５年９月２２日 木曜日 午後７時４０分

A-1
Thank you for choosing this Mitsubishi Inverter plug-in option.
This instruction manual gives handling information and
precautions for use of this equipment. Incorrect handling might
cause an unexpected fault. Before using the equipment, please
read this manual carefully to use the equipment to its optimum.
Please forward this manual to the end user.
1. Electric Shock Prevention
This section is specifically about
safety matters
Do not attempt to install, operate, maintain or inspect this
product until you have read through this instruction manual and
appended documents carefully and can use the equipment
correctly. Do not use this product 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".
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 because they are important to
personnel safety.
WARNING
CAUTION
CAUTION
SAFETY INSTRUCTIONS
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 or wiring cover
removed. Otherwise, you may access the exposed high-
voltage terminals and charging part 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, check to make sure that
Indication of the inverter operation panel is off, wait for at least
10 minutes after the power supply has been switched off, and
check that there are no residual voltage using a tester or the
like. The capacitor is charged with high voltage for some time
after power off and it is dangerous.
•Any person who is involved in the wiring or inspection of this
equipment should be fully competent to do the work.
•Always install the plug-in option before wiring. Otherwise,
you may get an electric shock or be injured.
•Do not touch the plug-in option with wet hands. Otherwise
you may get an electric shock.
•Do not subject the cables to scratches, excessive stress,
heavy loads or pinching. Otherwise you may get an electric
shock.
A7AX.book1ページ２００５年９月２２日 木曜日 午後７時４０分

A-2
2. Injury Prevention
3. Additional Instructions
Also note the following points to prevent an accidental failure,
injury, electric shock, etc.
1) Transportation and mounting
2) Trial run
3) Usage
4) Maintenance, inspection and parts replacement
5) Disposal
6) General instruction
CAUTION
•Apply only the voltage specified in the instruction manual to
each terminal. Otherwise, burst, damage, etc. may occur.
•Ensure that the cables are connected to the correct terminals.
Otherwise, burst, damage, etc. may occur.
•Always make sure that polarity is correct to prevent damage, etc.
Otherwise, burst, damage may occur.
•While power is on or for some time after power-off, do not touch
the inverter as it is hot and you may get burnt.
CAUTION
•Do not install or operate the plug-in option if it is damaged or
has parts missing.
•Do not stand or rest heavy objects on the product.
•Check that the mounting orientation is correct.
•Prevent other conductive bodies such as screws and metal
fragments or other flammable substance such as oil from
entering the inverter.
CAUTION
•Before starting operation, confirm and adjust the parameters.
A failure to do so may cause some machines to make
unexpected motions.
WARNING
•Do not modify the equipment.
•Do not perform parts removal which is not instructed in this
manual. Doing so may lead to fault or damage of the inverter.
CAUTION
•When parameter clear or all parameter clear is performed,
reset the required parameters before starting operations.
Each parameter returns to the initial value.
•For prevention of damage due to static electricity, touch
nearby metal before touching this product to eliminate static
electricity from your body.
CAUTION
•Do not test the equipment with a megger (measure insulation
resistance).
CAUTION
•Treat as industrial waste.
All illustrations given in this manual may have been drawn with
covers or safety guards removed to provide in-depth
description. Before starting operation of the product, always
return the covers and guards into original positions as specified
and operate the equipment in accordance with the manual.
A7AX.book2ページ２００５年９月２２日 木曜日 午後７時４０分

CONTENTS 
1PRE-OPERATION INSTRUCTIONS 1
1.1 Unpacking and Product Confirmation .............................................................................................1
1.1.1 Packing confirmation ......................................................................................................................................1
1.1.2 Parts ...............................................................................................................................................................2
1.1.3 Specifications .................................................................................................................................................3
2INSTALLATION AND WIRING 4
2.1 Pre-Installation Instructions .............................................................................................................4
2.2 Installation Procedure .......................................................................................................................5
2.3 Wiring..................................................................................................................................................7
3CONNECTION DIAGRAM AND TERMINAL 9
3.1 Connection Diagram..........................................................................................................................9
3.2 Internal Block Diagram....................................................................................................................11
3.3 Terminals ..........................................................................................................................................12
3.4 Code Input Example ........................................................................................................................13
4PARAMETERS 14
4.1 Parameter List ..................................................................................................................................14
4.2 Parameter Setting ............................................................................................................................16
4.2.1 Selection of input method (Pr. 304)..............................................................................................................16
4.2.2 Data read timing signal on-off selection (Pr. 305) ........................................................................................18
4.2.3 Bias and gain adjustment (Pr. 300, Pr. 301, Pr. 302, Pr. 303) .....................................................................20
4.2.4 Digital input increments selection (Pr. 329) ..................................................................................................22
4.2.5 16 bit digital torque command (FR-A700 series only) ..................................................................................23
4.3 Instructions ......................................................................................................................................27
A7AX.book1ページ２００５年９月２２日 木曜日 午後７時４０分

1
1
1PRE-OPERATION INSTRUCTIONS
1.1 Unpacking and Product Confirmation
Take the plug-in option out of the package, check the unit name, and confirm that the product is as you
ordered and intact.
This product is a plug-in option dedicated for the FR-A700/F700 series.
1.1.1 Packing confirmation
Check the enclosed items.
Plug-in option
......................................... 1
Mounting screw (M3 ×6mm)
.............. 2 (Refer to page 5.) Hex-head screw for option mounting (5.5mm)
............... 1 (Refer to page 5.)
5.5mm
A7AX.book1ページ２００５年９月２２日 木曜日 午後７時４０分

2
PRE-OPERATION INSTRUCTIONS
1.1.2 Parts
X10
X11
X12
X13
X14
X15
DY
X0
X1
X2
X3
X4
X5
X6
X7
X8
X9
Front view
Terminal layout
Rear view
Mounting
hole
Mounting hole
Mounting
hole
Terminal
block
Connector
Connect to the inverter
option connector
(Refer to page 5.)
A7AX.book2ページ２００５年９月２２日 木曜日 午後７時４０分

3
PRE-OPERATION INSTRUCTIONS
1
1.1.3 Specifications
(1) Digital input signal type
BCD code 3 digits or 4 digits
Binary 12 bits or binary 16 bits
(2) Selection of digital input signal
Select from the operation panel or parameter unit.
(3) Input current
5mA(24VDC) for each circuit
(4) Input specifications
Contact signal or open collector input
(5) Adjustment function
⋅Bias and gain
⋅Analog compensation input
(Set using the operation panel)
A7AX.book3ページ２００５年９月２２日 木曜日 午後７時４０分

4
2INSTALLATION AND WIRING
2.1 Pre-Installation Instructions
Make sure that the input power of the inverter is off.
CAUTION
With input power on, do not install or remove the plug-in option. Otherwise, the inverter and
plug-in option may be damaged.
A7AX.book4ページ２００５年９月２２日 木曜日 午後７時４０分

5
INSTALLATION AND WIRING
2
2.2 Installation Procedure
1) Remove the inverter front cover.
2) Mount the hex-head screw for option
mounting into the inverter screw hole (on
earth plate). (size 5.5mm, tightening
torque 0.56N⋅m to 0.75N⋅m)
3) Securely fit the connector of the plug-in
option to the inverter connector along the
guides.
4) Securely fix the both right and left sides
of the plug-in option to the inverter with
the accessory mounting screws. If the
screw holes do not line-up, the connector
may not have been plugged snugly.
Check for loose plugging.
REMARKS
After removing two screws on the right and left places, remove the plug-in option.
(When the plug-in option is mounted in the connector 3 (connector 1 for the FR-F700 series), it is easier to remove the
plug-in option after removing a control circuit terminal block.)
4) Mounting
screws
Inverter side
option
connector
Screw hole for
option mounting
Screw hole for
option mounting
(on earth plate)
Hex-head screw
for option mounting
1)
2)
3)
A7AX.book5ページ２００５年９月２２日 木曜日 午後７時４０分

6
INSTALLATION AND WIRING
CAUTION
•When two or more options are mounted, priority is in order of inverter option connectors 1, 2 and 3, the
options having lower priority are inoperative.
•When the inverter cannot recognize that the option is mounted due to improper
installation, etc., " to " (option alarm) are displayed for the FR-
A700 series.The errors shown differ according to the mounting positions
(connectors 1, 2, 3).
•The FR-F700 series has one connection connector for the plug-in option. When the inverter can not
recognize that the option unit is mounted due to improper installation, etc., " " (option alarm) is
displayed.
•Take care not to drop a hex-head screw for option mounting or mounting screw during mounting and removal.
•Pull out the option straight to remove. Otherwise, the connector may be damaged by some applied force.
Mounting
Position
Error
Display
Connector 1
Connector 2
Connector 3
A7AX.book6ページ２００５年９月２２日 木曜日 午後７時４０分

7
INSTALLATION AND WIRING
2
2.3 Wiring
(1) Strip off the sheath of the cable to wire.
Strip off the sheath about the size below. If the length of the sheath pealed is too long, a short circuit
may occur among neighboring wires. If the length is too short, wires might come off.
(2) Loosen the terminal screw and insert the cable into the terminal.
REMARKS
Information on bar terminals
Introduced products (as of October, 2003): Phoenix Contact Co.,Ltd.
Screw Size Tightening Torque Cable Size Screwdriver
M2 0.22N⋅m to 0.25N⋅m0.3mm2to 0.75mm2Small flat-blade screwdriver
(Tip thickness: 0.4mm/tip width: 2.5mm )
CAUTION
Undertightening can cause cable disconnection or malfunction. Overtightening can cause a short circuit or
malfunction due to damage to the screw or unit.
Cable stripping size Wire the stripped cable after twisting it to prevent it from becoming loose.
In addition, do not solder it.
Use a bar type terminal as required.
5mm
⋅Bar terminal crimping tool: CRIMPFOX ZA3 (Phoenix Contact Co., Ltd.)
Terminal Screw
Size
Bar Terminal Model
(with insulation sleeve)
Bar Terminal Model
(without insulation sleeve) Wire Size (mm2)
M2 Al 0.5-6WH A 0.5-6 0.3 to 0.5
When using the bar terminal
(
without insulation sleeve
)
,
use care so that the twisted wires do not come out.
A7AX.book7ページ２００５年９月２２日 木曜日 午後７時４０分

8
INSTALLATION AND WIRING
(3) For wiring of the FR-A700 series 22K or less and the FR-F700 series 30K (FR-F720-01250, FR-F740-
00620) or less, route wires between the control circuit terminal block and front cover. If cables can not be
routed between the control circuit terminal block and front cover due to the increased number of cables,
remove a hook of the front cover and use a space become available.
For wiring of the FR-A700 series 30K or more and the FR-F700 series 37K (FR-F720-01540, FR-F740-
00770) or more, use the space on the left side of the control circuit terminal block.
REMARKS
When the hook of the inverter front cover is cut off for wiring, the protective structure (JEM1030) changes to open type
(IP00 (The structure of the NA version is no longer NEMA 1.)).
When performing wiring using the space between the inverter front cover and control circuit
terminal block, take care not to subject the cable to stress.
After wiring, wire offcuts must not be left in the inverter. They may cause a fault, failure or
malfunction.
Cut off a hook on the inverter
front cover side surface.
(Cut off so that no portion is left.)
Cut off
with a
nipper,
etc.
Control circuit
terminal block
FR-A700 series 22K or less
and FR-F700 series 30K or less
FR-A700 series 30K or more
and FR-F700 series 37K or more
C
AUTI
O
N
A7AX.book8ページ２００５年９月２２日 木曜日 午後７時４０分

9
3
3CONNECTION DIAGRAM AND TERMINAL
3.1 Connection Diagram
*1 Use terminals SD or PC on the inverter.
*2 AY41 type unit requires 24VDC power.
Example of connection with the output module (AY41 type) of Mitsubishi PLC. Refer to the output module manual
for details of the output module.
*3 The control logic is the same as that of the inverter.
When the logic of the inverter is changed, the option logic also changes. For details of changing the control logic,
refer to the inverter manual.
Relay contact signal input (sink logic *3) Open collector signal input (sink logic *3)
DY
FR-A7A
X
Inverter
SD *1
X0
X1
X2
X3
X4
X5
X6
X7
X8
X9
X10
X11
X12
X13
X14
X15
Thousand's place
Hundred's place
Ten's place
Unit's place
X0
DY
FR-A7A
X
PC *1
Inverter
A
Y41 type transistor
output unit *2
*2
Reading command
18
19
35
36
17
5
7
8
10
12
14
16
15
13
11
9
6
4
3
2
1
X1
X2
X3
X4
X5
X6
X7
X9
X10
X11
X12
X13
X14
X15
X8
Thousand's place
Hundred's place
Ten's place
Unit's place
A7AX.book9ページ２００５年９月２２日 木曜日 午後７時４０分

10
CONNECTION DIAGRAM AND TERMINAL
REMARKS
1. As the input signals are at low level, use two parallel micro signal contacts or a twin contact for relay contact
inputs to prevent a contact fault.
2. A transistor of the following specifications should be selected for the open collector signal:
Electrical characteristics of the transistor used
⋅Ic ≥ 10mA
⋅Leakage current: 100
µ A maximum
⋅VCE ≥ 30V
⋅If Ic≥ 10mA, VCE (sat) voltage is 3V maximum
Micro signal contacts Twin contact
s
A7AX.book10ページ２００５年９月２２日 木曜日 午後７時４０分

11
CONNECTION DIAGRAM AND TERMINAL
3
3.2 Internal Block Diagram
The following is the internal block diagram of the FR-A7AX.
X0
Controller
X15
Connector
DY
A7AX.book11ページ２００５年９月２２日 木曜日 午後７時４０分

12
CONNECTION DIAGRAM AND TERMINAL
3.3 Terminals
Terminal
Location
Terminal
Symbol Description
Plug-in
option
X0 to X15
Digital signal input terminal (frequency setting signal terminal)
Input the digital signal at the relay contact or open collector
terminal. (Refer to page 9.)
For the digital signal input, you can choose either the BCD code
input or binary input.
BCD code input..3 digits (999 maximum) or 4 digits (9999
maximum)
Binary input ........binary 12 bits (X0 to X11, FFFHmaximum) or
binary 16 bits (X0 to X15, FFFFHmaximum)
DY
Data read timing input signal
Used when a digital signal read timing signal is necessary.
Data is read only during the DY signal is on.
By switching the DY signal off, the X0 to X15 data before signal-
off is retained. (Refer to page 18.)
Inverter
SD
Common terminal (sink)
Common terminal for digital and data read timing signals.
Use terminal SD of the inverter.
PC
External transistor common terminal (sink), common terminal (source)
When connecting the transistor output (open collector output) of
a programmable controller (PLC), etc., connect the external
power common (+) to this terminal to prevent a fault occurring
due to leakage current. When you have selected the source
logic, this terminal is used as a common terminal. Use terminal
PC of the inverter.
X10
X11
X12
X13
X14
X15
DY
X0
X1
X2
X3
X4
X5
X6
X7
X8
X9
A7AX.book12ページ２００５年９月２２日 木曜日 午後７時４０分

13
CONNECTION DIAGRAM AND TERMINAL
3
3.4 Code Input Example
The following explains examples of terminal status and input value at BCD code input and binary input.
Example: when the input value is 6325 Example: when the input value is AB65H
BCD Code Input Binary Input
Digit Terminal
name
Terminal input
status
Input
value
Terminal
name
Terminal input
status
Input value
(hexadecimal)
Input
value
(decimal)
1
X0 ON
5
X0 ON
5
43877
X1 OFF X1 OFF
X2 ON X2 ON
X3 OFF X3 OFF
10
X4 OFF
2
X4 OFF
6
X5 ON X5 ON
X6 OFF X6 ON
X7 OFF X7 OFF
100
X8 ON
3
X8 ON
B
X9 ON X9 ON
X10 OFF X10 OFF
X11 OFF X11 ON
1000
X12 OFF
6
X12 OFF
A
X13 ON X13 ON
X14 ON X14 OFF
X15 OFF X15 ON
CAUTION
For the BCD code input, the input value of each digit is from 0 to 9. When the value greater than 9 is input, it is
made invalid and the last value is retained.
A7AX.book13ページ２００５年９月２２日 木曜日 午後７時４０分

14
4PARAMETERS
4.1 Parameter List
When the FR-A7AX is fitted, the following parameters can be set.
The FR-A7AX does not function with the factory setting. When a value other than "9999"is set in Pr. 304,
digital input is enabled.
Set the following parameters according to applications.
Parameter
Number Name Setting Range Initial Value
Setting
Increments
Refer to
page
300 BCD code input bias 0 to 400Hz 0Hz 0.01Hz 20
301 BCD code input gain 0 to 400Hz, 9999 60Hz
(50Hz) *2 0.01Hz 21
302 Binary input bias 0 to 400Hz 0Hz 0.01Hz 20
303 Binary input gain 0 to 400Hz, 9999 60Hz
(50Hz) *2 0.01Hz 21
304 Selection of digital input and analog
input compensation enable/disable
0 to 4, 10 to 14,
9999 *1 9999 1 16, 23
305 Data read timing signal on-off selection 0, 1, 10 0 1 18
329 Digital input increments selection *3 0, 1, 2, 3 1 1 22
447 *4 Digital torque command bias 0 to 400% 0 1% 23
448 *4 Digital torque command gain 0 to 400%, 9999 150% 1% 23
804 *4 Torque command source selection 0, 1, 3 to 6 0 1 23
A7AX.book14ページ２００５年９月２２日 木曜日 午後７時４０分

15
PARAMETERS
4
*1 Setting values "4" and "14" are available with the FR-A700 series only.
*2 The initial value of the EC version is 50Hz.
*3 For Pr. 329, write is disabled during operation even when "2" is set in Pr. 77. When changing the parameter setting,
stop the operation. Also parameter clear is made invalid.
*4 These parameters can be set for the FR-A700 series only.
REMARKS
Binary input............The input data is taken in hexadecimal
BCD code input...... The input data is taken in decimal
A7AX.book15ページ２００５年９月２２日 木曜日 午後７時４０分

16
PARAMETERS
4.2 Parameter Setting
4.2.1 Selection of input method (Pr. 304)
Parameter
Number Name Setting Range Initial Value
Setting
Increments
304 Selection of digital input and analog
input compensation enable/disable
0 to 4,10 to 14,
9999 9999 1
Pr. 304 Setting Binary Input BCD Code Input
Availability of Analog
Input Compensation *1
({: enabled, ×: disabled)
03 digits ×
1 12bit ×
23 digits {
3 12bit {
4*2 12bit
Torque command value input 
10 4 digits ×
11 16bit ×
12 4 digits {
13 16bit {
14 *2 16bit
Torque command value input 
9999
(initial value) No function
A7AX.book16ページ２００５年９月２２日 木曜日 午後７時４０分