Mitsubishi Electric FR-A7NS User manual

1
FR-A7NS INSTRUCTION MANUAL
B
INVERTER
INSTRUCTION MANUAL
INVERTER
2
3
4
5
6
7
8
9
INVERTER
Plug-in option
HEAD OFFICE: TOKYO BUILDING 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
FR-A7NS
SSCNET III communication function
PRE-OPERATION INSTRUCTIONS
INSTALLATION
WIRING
IB(NA)-0600308ENG-B(0812) MEE Printed in Japan Specifications subject to change without notice.
RESTRICTIONS ON THE
FUNCTIONS
PRECAUTIONS
ALARM INDICATION DEFINITIONS
AND CORRECTIVE ACTIONS
INVERTER SETTING AND
DISPLAY
SSCNET III COMMUNICATION
STATUS
TROUBLESHOOTING

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
the 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.

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.

I
CONTENTS 
1 PRE-OPERATION INSTRUCTIONS 1
1.1 Inverter Type ......................................................................................................................................1
1.2 Unpacking and Product Confirmation .............................................................................................2
1.2.1 Packing confirmation ......................................................................................................................................7
1.2.2 Parts ...............................................................................................................................................................8
1.3 Caution................................................................................................................................................9
1.4 Operation Overview .........................................................................................................................10
2 INSTALLATION 12
2.1 Pre-Installation Instructions ...........................................................................................................12
2.2 Shaft number Setting.......................................................................................................................13
2.3 Installation Procedure .....................................................................................................................14
3 WIRING 16
3.1 System configuration (when FR-A7AP is used)............................................................................16
3.2 Wiring example (when FR-A7AP is used)......................................................................................18
3.3 SSCNET III cable ..............................................................................................................................20
3.3.1 SSCNET III cable laying ...............................................................................................................................24
3.4 Wiring................................................................................................................................................26
4 SSCNET III COMMUNICATION STATUS 32

II
5 INVERTER SETTING AND DISPLAY 35
5.1 Parameter List ..................................................................................................................................35
5.2 Operation Mode Setting ..................................................................................................................36
5.2.1 Operation mode indication............................................................................................................................36
5.2.2 Operation mode switchover method.............................................................................................................37
5.3 Operation at Communication Error Occurrence...........................................................................40
5.3.1 Alarm and measures ....................................................................................................................................40
5.4 Inverter Reset ...................................................................................................................................41
5.5 Setting SSCNET III communication function ................................................................................42
5.5.1 Pr.499 SSCNET III operation selection ........................................................................................................42
5.5.2 Pr.379 SSCNET III rotation direction selection.............................................................................................47
5.5.3 Pr.449 SSCNET III input filter setting ...........................................................................................................48
5.5.4 Pr.52 DU/PU main display data selection.....................................................................................................48
5.5.5 Pr.185 JOG terminal function selection........................................................................................................49
5.5.6 Pr.800 Control method selection ..................................................................................................................49
6 RESTRICTIONS ON THE FUNCTIONS 50
6.1 Function Restriction List.................................................................................................................50
6.2 Inverter Parameter List....................................................................................................................53
6.3 Inverter I/O Terminal Function List ................................................................................................69
6.3.1 Input terminal function ..................................................................................................................................69
6.3.2 Output terminal function ...............................................................................................................................72

III
7 PRECAUTIONS 74
8 ALARM INDICATION DEFINITIONS AND CORRECTIVE ACTIONS 75
9 TROUBLESHOOTING 79

1
1
1PRE-OPERATION INSTRUCTIONS
1.1 Inverter Type
The inverter type, 55K and 75K stated in this Instruction Manual differs according to each -NA, -EC, -CH(T)
versions. Refer to the following correspondence table for each inverter type. (Refer to the instruction manual
of each inverter for the inverter type.)
For example, "for the 75K or more" indicates "for the FR-A740-01440-NA or more" in the case of FR-A740
of NA version.
NA EC CH
A700
FR-A720-55K FR-A720-02150-NA 
FR-A720-75K FR-A720-02880-NA 
FR-A740-55K FR-A740-01100-NA FR-A740-01800-EC FR-A740-55K-CHT
FR-A740-75K FR-A740-01440-NA FR-A740-02160-EC FR-A740-75K-CHT

2
PRE-OPERATION INSTRUCTIONS
1.2 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 for the FR-A700 series inverter assembled in and after January 2007.
Refer to the table below to check the SERIAL (Serial No.) indicated on the inverter rating plate or package.
(1) NA specification
z200V class
Inverter Type
Label on
Product
Package
Identification
Symbol
Lower Third
and Second
Number of
TC Number
on Rating
Plate
SERIAL
(Upper
Three
Numbers of
SERIAL)
FR-A720-00030-NA Without G5 Q71
FR-A720-00050-NA P71
FR-A720-00080/
00110-NA
Without G5 Q71
<G> G7 D71
FR-A720-00175-NA Without G5 R71
<G> G7 D71
FR-A720-00240/
00330-NA
Without G5
Q71
FR-A720-00460-NA P71
FR-A720-00610 to
00900-NA R71
FR-A720-01150 to
01750-NA Q71
FR-A720-02150-NA P71
FR-A720-02880/
03460-NA M71
Inverter Type
Label on
Product
Package
Identification
Symbol
Lower Third
and Second
Number of
TC Number
on Rating
Plate
SERIAL
(Upper
Three
Numbers of
SERIAL)

3
PRE-OPERATION INSTRUCTIONS
1
z400V class
Inverter Type
Label on
Product
Package
Identification
Symbol
Lower Third
and Second
Number of
TC Number
on Rating
Plate
SERIAL
(Upper
Three
Numbers of
SERIAL)
FR-A740-00015 to
00310-NA
Without G5 Q71
<G> G7 E71
FR-A740-00380/
00440-NA
Without G5 Q71
<G> G7 F71
FR-A740-00570 to
00860-NA
Without G5 P71
<G> G7 E71
FR-A740-01100-NA Without G5 P71
<G> G7 D71
FR-A740-01440
to 02660-NA
Without G5 M71
<G> G7 E71
FR-A740-03250-NA Without G5 N71
<G> G7 F71
FR-A740-03610-NA Without G5 M71
<G> G7 F71
FR-A740-04320/
04810-NA
Without G5 M71
<G> G7 E71
FR-A740-05470-NA Without G5 N71
<G> G7 E71
FR-A740-06100-NA Without G5 M71
<G> G7 D71
FR-A740-06830-NA Without G5 J71
<G> G7 D71
FR-A740-07700/
08600-NA
Without G5 M71
<G> G7 D71
FR-A740-09620-NA Without G5 N71
<G> G7 D71
Inverter Type
Label on
Product
Package
Identification
Symbol
Lower Third
and Second
Number of
TC Number
on Rating
Plate
SERIAL
(Upper
Three
Numbers of
SERIAL)

4
PRE-OPERATION INSTRUCTIONS
(2) EC specification
* For the FR-A740-00770 to 12120-EC
Check the SERIAL indicated on the Serial number sticker shown below.
To check the SERIAL, the front cover must be removed.
For the removal of the front cover, refer to the inverter manual.
Inverter Type
Label on
Product
Package
Identification
Symbol
Lower Third
and Second
Number of
TC Number
on Rating
Plate
SERIAL
(Upper
Three
Numbers of
SERIAL)
FR-A740-00023 to
00126-EC
Without G5 or G6 M71
<G> G7 or G8 F71
FR-A740-00170/
00250-EC
Without G5 or G6 N71
<G> G7 or G8 F71
FR-A740-00310/
00380-EC
Without G5 or G6 M71
<G> G7 or G8 F71
FR-A740-00470/
00620-EC
Without G5 N71
<G> G7 G71
FR-A740-00770 to
12120-EC*
 L71 or F71
Inverter Type
Label on
Product
Package
Identification
Symbol
Lower Third
and Second
Number of
TC Number
on Rating
Plate
SERIAL
(Upper
Three
Numbers of
SERIAL)
VUW
FR-CA70-EC 71
SERIAL
Control unit type
SERIAL (Serial No.)
Month
Serial number sticker example
The SERIAL consists of 1 version symbol, 2 numeric characters
or 1 numeric character and 1 alphabet letter indicating year and
month, and 3 numeric characters indicating control number.
Month is indicated as 1 to 9, X (October), Y (November), and Z
(December).
Year
Symbol