Mitsubishi Electric FR-A7AR E User manual

INSTRUCTION MANUAL
1
2
3
INVERTER
Plug-in option
FR-A7AR
Relay output function
PRE-OPERATION INSTRUCTIONS
INSTALLATION AND WIRING
RELAY OUTPUT

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 inverter power indicator lamp 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.

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 5
2.1 Pre-Installation Instructions .............................................................................................................5
2.2 Installation Procedure .......................................................................................................................6
2.3 Wiring..................................................................................................................................................7
3RELAY OUTPUT 9
3.1 Internal Block Diagram......................................................................................................................9
3.2 Terminals ..........................................................................................................................................10
3.3 Parameter List ..................................................................................................................................10
3.4 Output Signal List ............................................................................................................................11
3.5 The Commercial Power Supply-Inverter Switchover Sequence Function .................................13

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-F700 series.
1.1.1 Packing confirmation
Check the enclosed items.
Plug-in option
......................................... 1
Mounting screw (M3 ×6mm)
.............. 2 (Refer to page 6.)
Hex-head screw for option
mounting (5.5mm)
............... 1 (Refer to page 6.)
5.5mm

2
PRE-OPERATION INSTRUCTIONS
1.1.2 Parts
Front view
Terminal layout
Rear view
Mounting
hole
Mounting hole
Mounting
hole
Terminal
block
Connector
Connect to the inverter
option connector
2A
2B
2C
1A
1B
1C
3A
3B
3C
(Refer to page 6)

3
PRE-OPERATION INSTRUCTIONS
1
1.1.3 Specifications
(1) Types of output signal
1 changeover contact output (three relays are provided)
(2) Contact capacity
230VAC .......... 0.3A
30VDC............ 0.3A
CAUTION
The contacts should be used within the rated capacity to prevent contacts weld resulting from faster contacts
wearing.

4
MEMO

5
2
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.

6
INSTALLATION AND WIRING
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.
(The plug-in option is easily removed if the
control circuit terminal block is removed before.)
CAUTION
1. When the inverter can not recognize that the option unit is mounted due to improper installation, etc.,
" " (option alarm) is displayed.
2. Note that a hex-head screw for option mounting or mounting screw may drop during mounting and removal.
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)

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
M3 0.5N⋅m to 0.6N⋅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.
6mm
⋅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)
M3 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
When using the bar terminal (without insulation sleeve),
use care so that the twisted wires do not come out.

8
INSTALLATION AND WIRING
(3) For wiring of 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-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
30K or less 37K or more
C
AUTI
O
N

9
3
3RELAY OUTPUT
3.1 Internal Block Diagram
You can select any three output signals available with an inverter as standard, and output them as relay
contact signals.
Refer to page 11 of the Instruction Manual (detailed) for details.
The following is the internal block diagram of the FR-A7AR.
1C
ControllerConnector
RA1 1B
1A
2C
RA2 2B
2A
3C
RA3 3B
3A

10
RELAY OUTPUT
3.2 Terminals
*The operation of each relay depends on the output signal selected.
3.3 Parameter List
By installing this plug-in option, the parameters below are extended.
Set the values according to need.
Use Pr. 320 to Pr. 322 to select signals used for relay output. (Refer to page 11 for signal types.)
Terminal Symbol Description
1A Relay RA1's normally open contact terminal
1B Relay RA1's normally closed contact terminal
1C Relay RA1's contact common terminal
2A Relay RA2's normally open contact terminal
2B Relay RA2's normally closed contact terminal
2C Relay RA2's contact common terminal
3A Relay RA3's normally open contact terminal
3B Relay RA3's normally closed contact terminal
3C Relay RA3's contact common terminal
Parameter Number Name Setting Range Initial Value
320 RA1 output selection 0 to 5, (7), 8, 10 to 19, 25, 26, 45
to 47, 64, 70, (71 to 78), 86 to 91,
94 to 96, 98, 99, 9999
0
321 RA2 output selection 1
322 RA3 output selection 2
REMARKS
⋅For Pr.320 to Pr.322, write is disabled during operation even when "2" is set in Pr.77 Parameter write selection.
When changing the parameter setting, stop the operation.
⋅When an option alarm ( ) occurs, all outputs are tuned off.
2A
2B
2C
1A
1B
1C
3A
3B
3C

11
RELAY OUTPUT
3
3.4 Output Signal List
For details of signal definitions, refer to Pr. 190 to Pr. 196 (Output terminal function selection) of the inverter
manual (applied).
Setting
Signal
Name
Function
Setting
Signal
Name
Function
Positive
logic
Positive
logic
0 RUN Inverter running 25 FAN Fan fault output
1 SU Up to frequency 26 FIN Heatsink overheat pre-alarm
2 IPF Instantaneous power failure/ undervoltage 45 RUN3 During inverter running and start command is on
3 OL Overload alarm 46 Y46 During deceleration at occurrence of
power failure (retained until release)
4 FU Output frequency detection 47 PID During PID control activated
5 FU2 Second output frequency detection 64 Y64 During retry
7 RBP Regenerative brake prealarm *1 70 SLEEP During PID output suspension
8 THP Electronic thermal relay function prealarm 71 RO1 Commercial-power supply side motor 1
connection RO1 *2
10 PU PU operation mode 72 RO2 Commercial-power supply side motor 2
connection RO2 *2
11 RY Inverter operation ready 73 RO3 Commercial-power supply side motor 3
connection RO3 *2
12 Y12 Output current detection 74 RO4 Commercial-power supply side motor 4
connection RO4 *2
13 Y13 Zero current detection 75 RIO1 Inverter side motor 1 connection RIO1 *2
14 FDN PID lower limit 76 RIO2 Inverter side motor 2 connection RIO2 *2
15 FUP PID upper limit 77 RIO3 Inverter side motor 3 connection RIO3 *2
16 RL PID forward/reverse rotation output 78 RIO4 Inverter side motor 4 connection RIO4 *2
17 MC1 Commercial power-supply switchover MC1 86 Y86 Control circuit capacitor life
18 MC2 Commercial power-supply switchover MC2 87 Y87 Main circuit capacitor life
19 MC3 Commercial power-supply switchover MC3 88 Y88 Cooling fan life

12
RELAY OUTPUT
*1 Setting can be made only for the 75K (FR-F720-03160, FR-F740-1800) or more.
*2 Setting can be made only for NA, EC and CH version.
89 Y89 Inrush current limit circuit life 96 REM Remote output
90 Y90 Life alarm 98 LF Minor fault output
91 Y91 Input MC shut off signal 99 ALM Alarm output
94 ALM2 Alarm output 2 9999 No function
95 Y95 Maintenance timer signal
REMARKS
Negative logic can not be set.
Setting
Signal
Name
Function
Setting
Signal
Name
Function
Positive
logic
Positive
logic

13
RELAY OUTPUT
3
3.5 The Commercial Power Supply-Inverter Switchover Sequence
Function
When using the commercial power supply-inverter switchover sequence function with the FR-A7AR
mounted, it is recommended to use either connection shown below.
(1) Recommended connection example 1
Use inverter output terminals (contact
signal, open collector signal) instead of
MC1 signal.
The phenomenon where magnetic
contactor switches alternate between ON
and OFF occurs when relay output of the
FR-A7AR is used as MC1 signal.
(2) Recommended connection example 2
When using relay output of the FR-A7AR,
set the alarm output signal (ALM) instead
of the MC1 signal and output it from
contacts B and C.
IM
MCCB
S1/L 21
R1/L 11
T/L 3
S/L 2
R/L 1
MC1
MC2
W
V
UMC3
MC1
MC1
Open
collector
or AC
contact
MC2
MC3
FR-A7AR
A
C
Power
supply
Motor
Inverter
MC2
A
C
MC3
IM
MCCB MC1
MC2
W
V
UMC3
ALM
MC1
FR-A7AR
Power
supply
Motor
Inverter
MC2
C
MC2
MC3
A
C
MC3
B
A
C
S1/L 21
R1/L 11
T/L 3
S/L 2
R/L 1

REVISIONS
*The manual number is given on the bottom left of the back cover.
Print Date *Manual Number Revision
May, 2004 IB(NA)-0600166ENG-A First edition
Dec., 2004 IB(NA)-0600166ENG-B
Board shape change
Compatible with the FR-F700-NA series
Partial modification
Addition

IB(NA)-0600166ENG-B (0412) MEE
INVERTER
Printed in Japan Specifications subject to change without notice.
HEAD OFFICE:MITSUBISHI DENKI BLDG MARUNOUCHI TOKYO 100-8310