Mitsubishi Electric 800 Series User manual

INVERTER
Plug-in option
INSTRUCTION MANUAL
PRE-OPERATION INSTRUCTIONS 1
INSTALLATION AND WIRING 2
ANALOG CURRENT INPUT 3
ANALOG CURRENT OUTPUT 4
FR-A8AN
Isolated analog current input function
Isolated analog current output function

1
Thank you for choosing this Mitsubishi inverter plug-in option.
This Instruction Manual provides handling information and precautions for use of this product. Incorrect handling might cause an unexpected
fault. Before using this product, always read this Instruction Manual carefully to use this product correctly.
Please forward this Instruction Manual to the end user.
Electric Shock Prevention
Injury Prevention
Safety instructions
Do not attempt to install, operate, maintain or inspect the 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".
Incorrect handling may cause hazardous conditions, resulting in death or severe injury.
Incorrect handling may cause hazardous conditions, resulting in medium or slight injury, or may cause only material
damage.
The level may even lead to a serious consequence according to conditions. Both instruction levels must be followed
because these are important to personal safety.
Warning
While the inverter power is ON, do not open the front cover or the wiring cover. Do not run the inverter with the front cover or the wiring cover removed. Otherwise
you may access the exposed high voltage terminals or the charging part of the circuitry and get an electric shock.
Do not remove the inverter front cover even if the power supply is disconnected. The only exception for this would be when performing wiring and periodic
inspection. You may accidentally touch the charged inverter circuits and get an electric shock.
Before wiring or inspection, LED indication of the inverter unit operation panel must be switched OFF. Any person who is involved in wiring or inspection shall wait
for at least 10 minutes after the power supply has been switched OFF and check that there is no residual voltage using a tester or the like. For some time after the
power-OFF, a high voltage remains in the smoothing capacitor, and it is dangerous.
Any person who is involved in wiring or inspection of this equipment shall be fully competent to do the work.
The plug-in option must be installed before wiring. Otherwise you may get an electric shock or be injured.
Do not touch the plug-in option or handle the cables 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.
Caution
The voltage applied to each terminal must be the ones specified in the Instruction Manual. Otherwise a burst, damage, etc. may occur.
The cables must be connected to the correct terminals. Otherwise a burst, damage, etc. may occur.
The polarity (+ and -) must be correct. Otherwise a burst or damage may occur.
While power is ON or for some time after power OFF, do not touch the inverter as it will be extremely hot. Touching these devices may cause a burn.
Warning
Caution
Caution

2
Additional Instructions
The following instructions must be also followed. If the product is handled incorrectly, it may cause unexpected fault, an injury, or an electric
shock.
Caution
Transportation and mounting
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.
The mounting orientation must be correct.
Foreign conductive objects must be prevented from entering the inverter. That includes screws and metal fragments or other flammable substance such as oil.
If halogen-based materials (fluorine, chlorine, bromine, iodine, etc.) infiltrate into a Mitsubishi product, the product will be damaged. Halogen-based materials are
often included in fumigant, which is used to sterilize or disinfest wooden packages. When packaging, prevent residual fumigant components from being infiltrated
into Mitsubishi products, or use an alternative sterilization or disinfection method (heat disinfection, etc.) for packaging. Sterilization of disinfection of wooden
package should also be performed before packaging the product.
Trial run
Before starting operation, each parameter must be confirmed and adjusted. A failure to do so may cause some machines to make unexpected motions.
Warning
Usage
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 product.
Caution
Usage
When parameter clear or all parameter clear is performed, the required parameters must be set again before starting operations. Because all parameters return to
their initial values.
Static electricity in your body must be discharged before you touch the product.
Maintenance, inspection and parts replacement
Do not carry out a megger (insulation resistance) test.
Disposal
The inverter must be treated as industrial waste.
General instruction
Many of the diagrams and drawings in this Instruction Manual show the inverter without a cover or partially open for explanation. Never operate the inverter in this
manner. The cover must be reinstalled and the instructions in the Instruction Manual must be followed when operating the inverter.

3
─CONTENTS ─
1 PRE-OPERATION INSTRUCTIONS 5
1.1 Unpacking and checking the product.......................................................................................................5
1.1.1 Product confirmation.......................................................................................................................................5
1.1.2 SERIAL number check ...................................................................................................................................6
1.2 Component names .....................................................................................................................................7
1.3 Specifications .............................................................................................................................................8
2INSTALLATION 9
2.1 Pre-installation instructions ......................................................................................................................9
2.2 Installation procedure ................................................................................................................................9
2.3 Wiring ........................................................................................................................................................12
3 ANALOG CURRENT INPUT 14
3.1 Wiring example .........................................................................................................................................14
3.2 Internal block diagram .............................................................................................................................15
3.3 Terminals...................................................................................................................................................16
3.4 Analog current input function parameter list.........................................................................................17
3.5 Setting and adjustment of analog current input....................................................................................18
3.5.1 Analog input selection .................................................................................................................................. 18
3.5.2 Bias and gain of frequency setting current
(Pr. 125, Pr. 241, C2(Pr. 902) to C4(Pr. 903)).............................................................................................. 20
3.5.3 Adjustment of analog input........................................................................................................................... 21
4 ANALOG CURRENT OUTPUT 22
4.1 Wiring example .........................................................................................................................................22
4.2 Internal block diagram .............................................................................................................................23

4
4.3 Terminals...................................................................................................................................................24
4.4 Analog current output function parameter list ......................................................................................25
4.4.1 Setting of analog output signal voltage/current switchover (Pr. 309) ...........................................................26
4.4.2 Calibration of meter ......................................................................................................................................27
4.4.3 Output signal setting..................................................................................................................................... 28
4.4.4 Analog signal adjustment (Pr. 307, Pr. 308, Pr. 311, Pr. 312, Pr. 323, Pr. 324) ..........................................29
4.5 Instructions ...............................................................................................................................................30

PRE-OPERATION INSTRUCTIONS 5
1
1PRE-OPERATION INSTRUCTIONS
1.1 Unpacking and checking the product
Take the plug-in option out of the package, check the product name, and confirm that the product is as you ordered and intact.
The product is a plug-in option for the FR-A800 series.
1.1.1 Product confirmation
Check the enclosed items.
Plug-in option
................................................1
Mounting screw (M3 8 mm)
.........................2 (Refer to page 9.)
Spacer
....................2 (Refer to page 9.)

6PRE-OPERATION INSTRUCTIONS
1.1.2 SERIAL number check
The plug-in option is compatible with the inverter having the following SERIAL number or later.
Check the SERIAL number indicated on the inverter rating plate or package.
SERIAL number check
FR-A800 series
Rating plate example The SERIAL consists of one symbol, two characters indicating
the production year and month, and six characters indicating
the control number. The last digit of the production year is
indicated as the Year, and the Month is indicated by 1 to 9, X
(October), Y (November), or Z (December).
   
Symbol Year Month Control number
SERIAL
Type SERIAL number
FR-A820-00046(0.4K) to 04750(90K)
FR-A840-00023(0.4K) to 06830(280K)
FR-A842-07700(315K) to 12120(500K)
FR-A846-00023(0.4K) to 00470(18.5K)
49 

PRE-OPERATION INSTRUCTIONS 7
1
1.2 Component names
Symbol Name Description Refer to
page
a Mounting hole Fixes the option to the inverter with screws, or installs spacers. 9
b Terminal block Connect signal cables. 12
cSwitch for manufacturer setting
(SW3) Do not change the initially-set status. (Switches 1 and 2 are OFF .) 
d Connector Connects to the option connector of the inverter. 9
1O
N
2
Front view Rear view
(a) (d)
AM2
AC2
AM3
AC3
(a)
(a)
(a)
(c)
(b)
40 50
1O
N
2

8PRE-OPERATION INSTRUCTIONS
1.3 Specifications
• Output signals
Across terminals AM2 and AC2: 4-20mADC
Across terminals AM3 and AC3: 4-20mADC
• Output resolution 1μA
• Display accuracy (reference value)
±10% of the full scale output value
This value depends on the output signal type
• Meters used
DC ammeter full scale 20mA(internal impedance 40Ωor less)
• Maximum cable length 10m
NOTE
• FR-A8AN current-input/output circuit is isolated from the control circuit of the inverter. (2500V (5s), (2000V (60s))

INSTALLATION 9
2
2INSTALLATION
2.1 Pre-installation instructions
Check that the inverter's input power and the control circuit power are both OFF.
2.2 Installation procedure
Caution
With input power ON, do not install or remove the plug-in option. Otherwise, the inverter and plug-in option may be damaged.
To avoid damage due to static electricity, static electricity in your body must be discharged before you touch the product.
(1) Remove the inverter front cover. (Refer to Chapter 2 of
the Instruction Manual (Detailed) of the inverter for details
on how to remove the front cover.)
(2) For the two mounting holes (as shown in the next page)
that will not be tightened with mounting screws, insert
spacers.
(3) Fit the connector of the plug-in option to the guide of the
connector on the inverter unit side, and insert the plug-in
option as far as it goes.
(4) Fit the two locations, the left and right, of the plug-in
option securely to the inverter unit by screwing in the
supplied mounting screws. (tightening torque 0.33 N·m to
0.40 N·m) If the screw holes do not line up, the connector
may not be inserted deep enough. Check the connector.
Spacer
Spacer
Inverter side
option connector
Example of installation to connector 1

10 INSTALLATION
Spacer
Spacer
Spacer
Mounting screw
Mounting screw
Mounting screw
Spacer
Spacer
Spacer
Mounting screw
Connector 1Connector 2
Connector 3
Insertion positions for screws and spacers

INSTALLATION 11
2
NOTE
• When mounting/removing the plug-in option, hold the sides of the option. Do not press on the parts on the circuit
board. Stress applied to the parts by pressing, etc. may cause a failure.
• Caution must be applied to mounting screws falling off when removing and mounting the plug-in option.
• Only one option can be used. When multiple options are mounted, priority is given to option connectors 1, 2 and 3 on
the inverter in this order, and options having a lower priority do not function.
• When the inverter cannot recognize that the option unit is mounted due to improper installation, etc., the protective
function (E.1 to E.3) is activated. A different indication will appear according to the mounted position (option connector
1 to 3).
• When removing the plug-in option, remove the two screws on the left and right, then pull it straight out. Pressure
applied to the connector and to the option board may break the option.
Mounted position Fault indication
Option connector 1
Option connector 2
Option connector 3

12 INSTALLATION AND WIRING
2.3 Wiring
(1) Untwist the shielded twisted pair cables after stripping its sheath.
Also, perform protective treatment of the shield to ensure that it will not make contact with the
conductive area.
Strip off the sheath for the below length. If the length of the sheath pealed is too long, a short circuit
may occur with neighboring wires. If the length is too short, wires might come off.
Wire the stripped cable after twisting it to prevent it from becoming loose.(Do not solder it.)
Use a bar type terminal as required.
NOTE
• Ferrule terminals commercially available (as of February 2012. The product may be changed without notice.)
When using the ferrule terminal (without insulation
sleeve), take caution that the twisted wires do not come
out.
Cable sheath stripping length
Terminal
screw size
Cable gauge
(mm2)
Ferrule terminal model
Manufacturer Crimping tool
name
With
insulation sleeve
Without
insulation sleeve
M2 0.3, 0.5 AI 0,5-6WH AI 0,5-6 Phoenix Contact
Co., Ltd. CRIMPFOX 6
Sheath
Shield
(perform protective
treatment)
Shielded twisted pair cable
5mm

INSTALLATION AND WIRING 13
2
(2) Loosen the terminal screw and insert the cable into the terminal.
NOTE
• Undertightening can cause cable disconnection or malfunction. Overtightening can cause a short circuit or malfunction
due to damage to the screw or unit.
Terminal
screw size Tightening torque Cable size Screwdriver
M2 0.22N.m to 0.25N.m 0.3mm2to 0.75mm2Small flat-blade screwdriver
(Tip thickness: 0.4mm/tip width: 2.5mm )

14 ANALOG CURRENT INPUT
3ANALOG CURRENT INPUT
3.1 Wiring example
4 to 20mA current input gives the frequency command to the inverter. The FR-A8AN can substitute for terminal 2 of the
inverter.
Connect the current signal source as shown below:
NOTE
• The wiring length between the FR-A8AN and the current signal source should be 10m maximum.
50(-)
40(+)
M
Motor
Inverter
STF
Forward rotation start
Reverse rotation start STR
Current signal
source
(4 to 20mADC)
SD
FR-A8AN
Power
supply

ANALOG CURRENT INPUT 15
3
3.2 Internal block diagram
The following is the internal block diagram about the FR-A8AN analog current input function.
Controller
Isolation barrier
A/D
conversion
Connector
40
50

16 ANALOG CURRENT INPUT
3.3 Terminals
Terminal symbol Terminal name Description
40 4-20mA current
input (+) 4-20mA current input signal for the positive connection
50 4-20mA current
input common 4-20mA current input signal for the common connection
40
50

ANALOG CURRENT INPUT 17
3
3.4 Analog current input function parameter list
Pr. Pr.
group Name Setting range
Minimum
increments
Initial
value
FM CA
73 T000 Analog input selection 0 to 7, 10 to 17 1 1
74 T002 Input filter time constant 0 to 8 1 1
241 M043 Analog input display unit switchover 0, 1 1 0
242 T021 Terminal 1 added compensation amount (terminal 2/ Terminal 40) 0 to 100% 0.1% 100%
325 T070 Terminal 40 input selection 0, 1 1 1
849 T007 Analog input offset adjustment 0 to 200% 0.1% 100%
C2(902) T200 Terminal 2/ Terminal 40 frequency setting bias frequency 0 to 590Hz 0.01Hz 0Hz
C3(902) T201 Terminal 2/ Terminal 40 frequency setting bias 0 to 300% 0.1% 0%
125(903) T202 Terminal 2/ Terminal 40 frequency setting gain frequency 0 to 590Hz 0.01Hz 60Hz 50Hz
C4(903) T203 Terminal 2/ Terminal 40 frequency setting gain 0 to 300% 0.1% 100%

18 ANALOG CURRENT INPUT
3.5 Setting and adjustment of analog current input
3.5.1 Analog input selection
You can select the function that switches between forward rotation and reverse rotation according to the analog current input
terminal selection specifications, the override function and the input signal polarity.
Setting Pr. 325 (Terminal 40 input selection) to "1" (initial value) with the FR-A8AN mounted, analog current input command
by terminal 40 is valid. Refer to the following table and set Pr. 73 and Pr. 267. ( indicates the main speed setting)
Pr. 73
setting
Terminal
40 input
Terminal
1 input
Terminal 4
input
Compensation input
terminal and
compensation method
Polarity
reversible
04 to 20mA 0 to ±10V
Terminal 4 acts as
main speed setting
by turning ON the
AU signal.
According to Pr.
267 setting
0: 4 to 20mA
(initial value)
1: 0 to 5V
2: 0 to 10V
Terminal 1
Added compensation No
(Indicates that a
frequency command
signal of negative
polarity is not
accepted.)
1(initial value) 4 to 20mA 0 to ±10V
24 to 20mA 0 to ±5V
34 to 20mA 0 to ±5V
4 4 to 20mA 0 to ±10V Terminal 40
Override
5 4 to 20mA 0 to ±5V
64 to 20mA 0 to ±10V
Terminal 1
Added compensation
74 to 20mA 0 to ±5V
10 4 to 20mA 0 to ±10V
Yes
11 4 to 20mA 0 to ±10V
12 4 to 20mA 0 to ±5V
13 4 to 20mA 0 to ±5V
14 4 to 20mA 0 to ±10V Terminal 40
Override
15 4 to 20mA 0 to ±5V
16 4 to 20mA 0 to ±10V Terminal 1
Added compensation
17 4 to 20mA 0 to ±5V

ANALOG CURRENT INPUT 19
3
NOTE
• Make sure that the parameter and switch settings are the same to use terminal 4. A different setting may cause a fault,
failure or malfunction. (For details, refer to the Instruction Manual(Detailed) of the inverter.)
• The terminal 1 (frequency setting auxiliary input) signal is added to the main speed setting signal of the terminal 40 or
4.
• When an override is selected, the terminal 1 or 4 is used for the main speed setting and the terminal 40 for the
override signal (50% to 150% at 0 to 20mA). (When the main speed of the terminal 1 or terminal 4 is not input,
compensation by the terminal 40 is invalid.)
•UsePr. 125 (frequency setting gain) to change the maximum output frequency at input of the maximum output
frequency command current. At this time, the command current need not be input.
Also, the acceleration/deceleration time, which is a slope up/down to the acceleration/deceleration reference
frequency, is not affected by the change in Pr. 73 setting.
• Inputting current of 25mA or more to terminal 40 results in analog input alarm (E.AIE), causing the inverter to trip.
• When the FR-A8AN is installed and Pr.325 = "1 (initial value)", terminal 2 is invalid. (However, inputs from the PTC
thermistor are valid.)
• The priorities of frequency (speed) command of terminal 40 is the same as terminal 2.