FCTT-222-020

INSTRUCTION MANUAL
PLUG-IN TRANSDUCER
FINE SERIESCOMMUNICATION UNITFCTT(INPUT 8 CIRCUITS)FCTT-222-020

Contents

Introduction ･･･････････････････････････････････････････････････････････････････

2

Safety precaution ･･････････････････････････････････････････････････････････････

2Model name configuration ･･･････････････････････････････････････････････････････

3

1 Outline on the product1.1 Features ･････････････････････････････････････････････････････････････････

4

1.2 Name of each part ････････････････････････････････････････････････････････

4

1.3 Bundled items ････････････････････････････････････････････････････････････

4

2 Outline dimensions ･･･････････････････････････････････････････････････････････

5

3 Installation ･････････････････････････････････････････････････････････････････

6

3.1 Connection method ･･･････････････････････････････････････････････････････

6

3.2 Installing and removing the input connector ･･････････････････････････････

8

3.3 Cautions on mounting ･････････････････････････････････････････････････････

8

3.4 Example of combination mounting ･･････････････････････････････････････････

9

3.5 The mount to DIN rail, and the method of detachment ･･････････････････････

9

4 Terminal connections ･････････････････････････････････････････････････････････ 10
5 Oparetion and settings ････････････････････････････････････････････････････････ 11
6 Specifications ････････････････････････････････････････････････････････････････ 11
7 Troubleshooting ･･････････････････････････････････････････････････････････････ 14

1

FCTT-222-020

Introduction
Thank you for purchase of DAIICHI product.
Please read this instruction manual carefully before use.
Keep this manual for future reference.
Please contact with us in case this manual is lost or damaged.

Safety Precaution■ Environment conditions
Please be sure to use this product in a place that meets the following conditions. In places that do notmeet this condition, malfunctions and failures, and performance and product life may be reduced.
① Within the range of ambient temperature -10 to 55 ℃, humidity 5 to 90 ％ RH.
② Place free of corrosive gas. (Corrosive gas：SO2 / H2S, etc.)③ Place free of dust, salt and oily smoke.
④ Location that is not affected by vibration and shock.
⑤ Location that is not affected by external noise.
⑥ Altitude 2000m or less.

■ Outdoor use conditions.
 These products are not a dustproof, waterproof, and splash proof construction.
Please avoid the place with much dust. Please do not install in the place directly exposed to therain and water droplets.
 Please do not install in the place directly exposed to the sun even through the glass.
Discoloration and degradation of a name plate, and deformation of the box by the surface temperaturerise may cause. The case may be deformed if it is exposed to direct sunlight and the surface
temperature exceeds 80℃.
 Product life may shorten when the daily average temperature exceeds 40 ℃.

■ Mounting and wiring
Please refer to this instruction manual for installation and the wiring.
 Please refer to connection diagram for the wiring.
An improper connection may cause generation of high voltage on the CT secondary side, andwhich may lead to device malfunction, burning or fire.
 Hot line work is prohibited. There is a risk of explosion by electric shock, device
malfunction, burning, fire, or gas.
 Please use an electrical wire size suitable with the rated current.
Use unsuitable size electric wire, which may lead to a fire.
 Strip the wire with an appropriate length. If it is peeled off too long, it may shortcircuit with the adjacent wire. Also, if it is too short, the wires may not fit properly,
resulting in poor contact.
 Be careful not to short-circuit the core wire with the adjacent pole due to the whiskers.
 Please check the tightening of the screw. If the screws are loose, it may cause a fire or
malfunction.

■ Preparation
This product must be set before use. Please read this manual and make the setting correctly.
If you make a mistake on the setting it does not operate correctly.

■ Maintenance and inspection
 Inspection during energization is dangerous.
 This product has no parts to replace during regular inspections.
 Please wipe off lightly with the dry soft cloth.
Please do not use the organic solvent, chemicals, cleaners, etc., such as an alcohol, for cleaning.

2

FCTT-222-020■ Storage
When storing this product for a long period, please keep it in a place that satisfies the following
environmental conditions.
 Within the range of ambient temperature (-20 to 70 ℃) and humidity (5 to 90 ％RH).
 Place where average daily temperature does not exceed 40 ℃.
 Locations with little dust, corrosive gases, salt and oil smoke.
 A place not subject to vibration or shock.

■ Countermeasures against troubles
If this product breaks down within the warranty period, it will be repairs by DAIICHI Electronics.

■ Disposal
Please dispose of this product as industrial waste (noncombustible).
Mercury parts and a nickel-cadmium battery are not used for this product.

■ Warranty period
The warranty period of the product is one year after the date of delivery.

■ Warranty scope
In the state of the normal use of product-specification within the range according to this instruction
manual, the trouble within the warranty period performs exchange or repair gratuitously.
However, if it corresponds to the next, it does not warrant.
① If it breaks down when converted or repaired except our company.
② If it breaks down by use out of specification range.
③ If the cause of trouble is based on cause other than this product.
④ Transportation, movement, damage by falling, and trouble.
⑤ Other, natural disasters, disasters, etc. In the case where the supplier side (Company and agent) is
not responsible.
This warranty is a guarantee for the delivered product. Cannot warrant the damage induced by trouble ofthis product.

■ Replacement cycle of the productWe recommend updating the product for 10 years as a rough standard.

■ Change of instruction manual written contents.
This instruction manual changes written contents without a notice by product improvement etc.

Model name configuration
Type
ＦＣＴＴ －

Specification code①②③

① Input
8A8 DC1 to 5V(About 1MΩ) 8 circuits
8C7 DC4 to 20mA (About 100Ω) 8 circuits④ Auxiliary supply
B
AC/DC80 to 264V
C
DC19 to 57V

④

⑤

0

② OutputM

RS-485 Modbus RTU⑤ Power fuse
1
Without fuse
2
Within fuse

3

③ Bit rate / Parity bit
Various settings areFpossible

FCTT-222-020

1 Outline on the product1.1 Features







Remote monitoring of analog signals such as various sensors and instrumentation equipment is possible.
Achieves high-precision conversion ±0.1%.
Multi-point input of up to 8 circuits.
The push-in connector reduces wiring man-hours.
"Auxiliary supply applied status" and "communication status" can be confirmed by LED (green).
By supporting MODBUS communication on the open network, it can be combined with a general-purpose
wireless unit.
 CE marking product.

1.2 Name of each part
Input connector

RUN LEDDIP switch forcommunication
setting

Rotary code switch
for address setting

Communication unit (main unit)

1.3 Bundled items① Input connector ･････② FW11 socket ･････････

1
1

4

Socket (FW11)

FCTT-222-020

2 Outline dimensions
INPUT1(－)

INPUT8(＋)

INPUT1(＋)

23

INPUT8(－)

Socket (FW11)029.5 -2

Communication
setting switch

22
4.2

RUN LED
3

2

1

6

5

4

9

8

7

RUN

5

SET
1
2
3
4
ON

OFF

ADDRESS

ＦＣＴＴ

Addresssettingswitch

11

10

4

TYPE

59

72

0

10 0

72 -2

96

10 1

(30)

84
11

114±1

5

6
11-M3×8screw

FCTT-222-020

3 Installation
3.1 Connection method■ Input connector connection method（1）Applicable wire
The connector is a push-in connection connector.

The applicable wire sizes are shown in the table below.
Stranded wire,
Stranded wire,
Flexible stranded
rod terminal
rod terminal
wire(Ferrule without(Ferrule withinsulating collar)
insulating collar)

Single wire
Cross-sectional
area
AWG

0.14 to 1.5mm2

0.14 to 1mm2

26 to 1626 to 17（2）Electric wire stripping length
Electric wire
stripping length

Electric wire
Single wire
Flexible stranded wire
Stranded wire, rod
terminal (Ferrule
without insulating
collar)Stranded wire, rod
terminal (Ferrule withinsulating collar)
Single wire

0.5 mm20.75 mm2
1.0 mm2
1.5 mm2
0.5 mm20.75 mm2
1.0 mm2

Ferrule without insulating collar (Weidmuller, H0.5/10)
Ferrule without insulating collar (Weidmuller, H0.75/10)
Ferrule without insulating collar (Weidmuller, H1.0/10)
Ferrule without insulating collar (Weidmuller, H1.5/10)
Ferrule with insulating collar (Weidmuller, H0.5/16OR)
Ferrule with insulating collar (Weidmuller, H0.75/18W)
Ferrule with insulating collar (Weidmuller, H1.0/18DR)

Flexible stranded wire

10mm

12mm
14mm
15mm

Stranded wire, rod terminal
Stranded wire, rod terminal(Ferrule without insulating collar) (Ferrule with insulating collar)

In case of flexible stranded wire, please be careful not to loosen the wire. There is a rod terminal as apreventive measure. Rod terminal of recommendation, please refer to the "(2) Electric wire stripping
length". Also, please use a dedicated crimping tool to rod terminal.
●

Crimping tool：Weidmuller,●

Use a rod terminal that matches the wire size.

●

The tip of the wire, please cut the length of the rod terminal (or about 0.5 mm long).

●

After the rod terminal crimping, please check the appearance.
0 ... 0.5 mm

Ferrule crimping tool, PZ series

Exposure of conductor
DamagePressure bonding◯

× Exposure of conductor

6× Damage to the side

Insufficient length of
the wire× Wire stripping shortage

FCTT-222-020(3) Connection method① Stripping off the tip of the wire. Or, crimping the rod terminal.
② Insert the screwdriver to screwdriver insertion slot, open the spring.
③ To insert the wire to the wire insertion slot.
④ Pull out the screwdriver, close the spring.
<Caution> When connecting, disconnect the connector from the main unit (connector alone).
①

Stripping

Without of loosened and twisting and bending

②

③

④

Insert the screwdriver to open the spring

Screw driver【Screwdriver and wire insertion slot】
Screwdriver
push position

Wire insertion
slot

7

FCTT-222-020

3.2 Installing and removing the input connector<Caution> Cut off the input signal when removing or installing the connector from the main unit.
(1) How to install the connector.
Insert the connector into the main unit and push it in until the lock lever of the connector locks.
Lock lever【 Not locked 】【 Locked 】<Caution> Install the connector while supporting the main body.
(2) How to remove the connector
Operate the lock levers on both ends of the connector in the direction of the arrow at the same time
to remove them from the main unit.

3.3 Cautions on mounting① Please install indoors in a place with low mechanical vibration, dust, and corrosive gas.
② There is no restriction on mounting position.
③ Mounting can be done on 35mm width DIN rail mounting or screw mounting.
④ For screw mounting, please install with M3 screw or M4 screw.

However, the screw is not attached.

⑤ The tightening torque of a screw, M3：0.45 to 0.60N･m，M4：1.00 to 1.30N･m⑥ The interval between FW11 does not have designation.
⑦ Considering heat dissipation and wiring space, please leave more than 100mm space between the top andbottom. (Reference at section 3.4 Example of combination mounting)⑧ Please leave space between terminal and metal panel for 10mm or more.

8

FCTT-222-020

3.4 Example of combination mounting■ Screw installation (Unit mm)■ Rail installation (Unit mm)

22

8

22

8

22

Over 113

59

M3,M4 or φ4.530

30Please use rail of IEC, DIN technical standard 35mm width rail59

(strong type).

22

8

22

8

《 Recommendation product 》 Fuji Electric Co.,Ltd.

TH35-15AL

22

3.5 The mount to DIN rail, and the method of detachment<Caution> Shut down the auxiliary supply when removing or installing the main unit from the socket.
(2) How to fix a body to a socket.
Do in the direction which can read a label
character correctly, and insert a bodystraightly.
Press with the screw of a body.
(Please do not tighten a screw too much.)(1) How to fix a socket.
Set the base socket so that its slider is at
the bottom. Position the upper hook at therearside of base socket on the DIN rail and pushin the lower.

Slider(3) How to remove a body from a socket.
Loosens the screw of a body.
Please pull a body to straight near side.

(4) How to remove a socket.
Push down the slider utilizing a minus
screwdriver and pull.

Screwdriver< Cautions >If a transducer body is taken out and inserted
aslant, the terminal of a body will bend and aloose connection etc. will occur.
9

FCTT-222-020

4 Terminal connections■ Socket（FW11）

■
(＋)
(－)
SG
SHIELD

3
6

2
5

Mounting base（FWBA）
(＋)
(－)
SG
SHIELDOUTPUT
RS-485

1
4
Ter.
(－)

TERMINATIONRESISTOR

1
3

2
4

5
7

6
8

OUTPUT
RS-485

AUX.SUPPLY－(＋～ )( ～ )

9

8 7
11 10

By short-circuiting the 2(Ter.) and 5 (-) terminals,
a terminating resistance of100Ω is connected inside.

＋(－～ )( ～ )AUX.SUPPLY

E

By short-circuiting the 7(Ter.) and 8 (-) terminals,
a terminating resistance of100Ω is connected inside.

Ter.(－)TERMINATIONRESISTOR■ Input connector (plug)
INPUT (－)

<Note>
If guidance induced lightning surge may occur on the input
side / output side or auxiliary power supply side, installline surge protector and arrester etc. between the line andground to protect this product.

8 7 6 5 4 3 2 1

8 7 6 5 4 3 2 1
INPUT (＋)

【 About communication output wiring 】■ Socket（FW11）
(＋)
(－)
SG
SHIELD(＋)(－)
SGSHIELD

(＋)
(－)
SG
E

【FCTT】

3
6

Terminal number 3 (SHIELD)
is a shielded wire relay
terminal (for crossoverwiring).
Not connected to ground orinternal common.

2
5【FCTT】

1
4

3
6

1
4

2
5

Ter.

<Note>For device that has been
terminated by connection,short-circuit the 2 (Ter.)terminal and 5 (-)
terminal, and connect a100Ω terminating resistor.

■ Mounting base (FWBA)
(＋)
(－)
SG
SHIELD

(＋)
(－)
SG
E

【FCTT】

Terminal number 3 (SHIELD)
is a shielded wire relay
terminal (for crossoverwiring).
Not connected to ground orinternal common.

(＋)
(－)
SG
SHIELD

1
3

2
4

7

8

【FCTT】

1
3

2
4

7

8

<Note>For device that has been
terminated by connection,short-circuit the 7 (Ter.)terminal and 8 (-)
terminal, and connect a100Ω terminating resistor.

Ter.

<Note> Use a shielded twisted pair cable for the transmission line. Also, use the same cable, including
inside the panel. Also, if there is a lot of inductive noise, ground only one of the mosteffective points.
10

FCTT-222-020

5 Oparetion and settings(1) Switch and display
Item
Rotary code switch for address setting

DIP switch forcommunication
settings

Bit ratesetting

Parity bit(Stop bit)

DIP switch setting
4800 bps
9600 bps
19200 bps
38400 bps
DIP switch setting
Odd number (1 bit)
Even number (1 bit)
None (2 bit)

Always on
Blinking at 1 second cycle(0.5 second on, 0.5 second off)
Blinking at 2 second cycle(1 second on, 1 second off)

RUN LED

Specification
Communication address setting, 2 digits (101，100)
Address setting range：
01 to 99 (10 digits or 1 digit, set individually)
Factory setting is 00 (communication not used)
SET1
SET2
OFF
ON
OFF
OFF
ON
OFF
ON
ON
SET3
SET4
OFF
ON
OFF
OFF
ON
OFF
Normal operation, non-communication
Communication error, CRC error
Setting error (Change communication setting while applying
power)

6 Specifications(1) Rating
Item
Input (Input resistance)
Communication output
Auxiliary supply
range
Auxiliary
supplyConsumption VA
Power consumption
Inrush current(Time constant)
FuseSpecification
DC1 to 5V （1MΩ）
DC4 to 20mA （100Ω）
Modbus RTU (RS-485)(1) AC80 to 264V (Rated voltage AC100/110V，AC200/220V) 50/60Hz(1) DC80 to 264V (Rated voltage DC100/110V，DC200/220V)
AC-DC dual-use(2) DC19 to 57V (Rated voltage DC24V,DC48V)(1) 2.0VA (AC100/110V) ，2.5VA (AC200/220V) , 2.0W(DC100/110V,DC200/220V)(2) 2.0W (DC24V,DC48V)(1) AC110V：2.2A or less, AC220V：4.4A or less（About 1ms)
(1) DC110V：1.6A or less, DC220V：3.1A or less (About 1ms)
(2) DC 24V：2.7A or less, DC 48V：5.4A or less (About 1ms)
Rated current 280mA (At designation with fuse)(2) Performance
Item
Conversion accuracy±0.1％ (％ of span)

Influence of self-heating±0.2％ (％ of span)

Influence of temperature±0.2％ (％ of span)

Influence of auxiliary
supply±0.1％ (％ of span)

Response time
Measurement range
and limiter

Specification
The difference of the output value of immediately after
operation (after 1 to 3 minutes) and after 30 to 35 minutes.
The difference of the output value when changing 23±10℃.
The difference of the output value when making supply voltage
into the upper limit and lower limit of the variation range,
and the output value in rated voltage.

1 second or less
Input
Communication data
DC4 to 20mA
0H to 2710H(0 to 10000)
DC1 to 5V

11LimiterUpper limiter：125％ of span
Lower limiter：-25％ of span

FCTT-222-020(3) Communication specifications
Item
Output points
Communication system
ProtocolBit rate
Transmission code
Start bit
Data bit
Parity bit
Stop bit
Transmission code
Cable length
Communication address
Number of connection
Error detection
Termination resistor

Specification
1
RS-485 Half-double 2-wire system Synchronous system
Modbus RTU mode (For details of the protocol, refer to theseparate volume "Communication Specifications")
4800bps / 9600bps / 19200bps / 38400bps
NRZ
1 bit
8 bit
None / Even number / Odd number
1 bit：Parity / 2 bits：Non parity
Binary1000m (Max.)
01 to 99, 00 (Communication unused)
Max. 32
CRC-16 (X16＋X15＋X2＋1)
By short-circuiting the (－) terminal and the (Ter.) terminal,a terminating resistance of 100Ω is connected inside.

Factory setting―――
9600bps―――Even number
1 bit
―
―
00 (Communication unused)―――(4) Electrical strength, Mechanical strength
Item
Insulation resistance
Voltage test
(Commercial frequency
withstand voltage)
Impulse voltage test
Input
Overload
Auxiliary
capacity
supplyVibration

ImpactSpecification
Between electric circuit and case.
DC500V More than 50MΩ
Between input and communication output and auxiliary supply.
Non-insulated between inputs
Between electric circuit and case.
AC2210V(50/60Hz) 5 srconds
Between input and communication output and auxiliary supply.
AC2000V(50/60Hz) 1 minuteNon-insulated between inputs
Between input and communication output and auxiliary supply.
5kV 1.2/50μs
2 times 10 seconds, 1.2 times continuation of rated input.
1.5 times 10 seconds, 1.2 times continuation of rated voltage. (AC100/110V, AC200/220V,
DC24/48V, DC200/220V)
1.5 times 10 seconds, 1.3 times continuation of rated voltage. (DC100/110V)
IEC 60068-2-6：2007
Frequency range：10 to 55Hz , Single amplitude：0.15mm , Sweep cycle：5 times
Vibration direction: front and back, left and right, up and down.
IEC 60068-2-27：2008
Peak acceleration：300m/s2
3 times in each of forward and reverse in the X, Y and Z directions.

(5) Noise immunity
Item
Damped oscillatory
wave immunity test
IEC 61000-4-12
Square impulse
immunity test
JEA B-402

Radio wave immunity
test

Specification
Peak voltage：2.5kV, Frequency：1MHz ±10％, Add 3 times for 30 seconds. There should
be no error within ± 10%, and communication error and communication stoppage.
・Auxiliary supply circuit (Normal/Common)
Add noise (1μs, 100 ns width) repeatedly for 5 minutes. There should be no error within± 10%, and communication error and communication stoppage.
・Auxiliary supply circuit (normal / Common) Over 1500V
・Input circuit (Induction)
Over 1000V
・Communication output (Induction)
Over 1000V① Transceiver rated output 5W (150MHz, 400MHz). There should be no error within ±10%,and communication error and communication stoppage.
② No malfunction occurs when a mobile phone (800MHz, 1.8GHz) and wireless LAN (2.4GHz,
5GHz) are brought into contact with each other for intermittent irradiation.
And, communication should communicate normally after a noise applying stop.

12

FCTT-222-020(6) EMC
Item
Electrostatic
discharge immunity
test

Radiated, radiofrequency,
electromagnetic
field immunity test

Electrical fasttransient / burst
immunity test

Surge immunity test

Specification
Contact discharge±4kV (Charge voltage)
Air discharge±8kV (Charge voltage)
Frequency：① 80 to 1000MHz② 1.4 to 2.0GHz③ 2.0 to 2.7GHz
Field strength：① 10V/m② 3V/m③ 1V/mAmplitude modulation：80％AM (1kHz)
Power port (DC) ±2.0kV
Power port (AC) ±2.0kV
Signal port
±1.0kV
Communication±1.0kV
port
Line to earth ±0.5kVPower port (DC)Line to line ±0.5kVLine to earth ±2.0kV
Power port (AC)Line to line ±1.0kV
Signal port
Line to earth ±1.0kV

Performancestandard：B

After test：
Within inherent
error

EN61000-6-2:2005
EN61000-4-2:2009

Performancestandard：A

During testing：within ±20%error
After test：
Output is within
inherent error

EN61000-6-2:2005
EN61000-4-3:2006+A2:2010

Performancestandard：B

After test：
Within inherent
error

EN61000-6-2:2005
EN61000-4-4:2012

Performancestandard：B

After test：
Within inherent
error

Immunity to conducted
disturbances, inducedby radio-frequency
fieldsFrequency：0.15 to 80MHz
Voltage level：10V, 80％AM (1kHz)

Performancestandard：A

Power frequency
magnetic field
immunity test

Frequency：50/60Hz
Field strength：30A/m

Performancestandard：A

During testing：within ±20%error
After test：
Output is within
inherent error
During testing：within ±20%error
After test：
Output is within
inherent error
After test：
Within inherent
error
After test：
Within inherent
error

EN61000-6-2:2005
EN61000-4-5:2014

EN61000-6-2:2005
EN61000-4-6:2014

EN61000-6-2:2005
EN61000-4-8:2010

Performance
Voltage dips, short
Residual voltage：0％, 1 cycle
standard：Binterruptions andEN61000-6-2:2005
voltage variations
EN61000-4Residual voltage：40％, 10/12 cycle
immunity tests
11:2004
Performance
Residual voltage：70％, 25/30 cycle(AC power supply port)
standard：C
Residual voltage：0％, 250/300 cycle
Frequency band 30 to 230MHz
3m distance：50dB(μV/m) or less, 10m distance：40dB(μV/m) or lessElectromagnetic
radiation disturbance Frequency band 230 to 1000MHz
3m distance：57dB(μV/m) or less, 10m distance：47dB(μV/m) or lessPower port (AC)EN61000-6-4:2007
Frequency band 0.15 to 0.5MHz, Quasi-peak：79dB or less,+A1:2011
Average ：66dB or less
EN55011:2009
Frequency band 0.5 to 30MHz, Quasi-peak：73dB or less,+A1:2010
Average ：60dB or lessclassA,Group1
Terminal noise
Communication port
Frequency band 0.15 to 0.5MHz, Quasi-peak：97dB to 87dB,
Average ：84dB to 74dB
Frequency band 0.5 to 30MHz, Quasi-peak：84dB or less,
Average ：74dB or less
Performance standard A：During and after the test the equipment shall be able to continue operation as
specified.
Performance standard B：The equipment shall be able to continue operation as specified after the test.
However, performance degradation during testing is allowed.
Performance standard C：Temporary loss of function is allowed, but the function can be self-healing or canbe recovered by operation of the control device.

13

FCTT-222-020(7) Structural and environmental conditions
Item
External dimensions
Mass
Material
Color
Input connector
Socket terminal screw
Protection rating
Operating temperatureand humidity limits
Storage temperature
limitsSpecification
29.5×96×125mm （W×H×D） Including socket / input connector
Main body：Approx. 130g , Socket：Approx. 50g
FCTT：ABS(V-0)
FW11 socket：Flame retardant PPO resin (V-1)
Black (Munsell N1.5)
Push-in connector
M3×8 washer screw (FW11 socket)
IP30-10 to +55℃ ，5 to 90％ RH(Non condensing)-20 to +70℃

(8) Standard
Item
Low Voltage Directive

2014/35/EU
2014/30/EU
2014/30/EU
2011/65/EU

CE marking

EMC Directive

SafetyRoHS Directive
IEC 61010-1：2010
Measurement Category Ⅲ,
Pollution degree 2
TIA-485-A (2003)

Communication

Specification
EN61010-1
EN61000-6-2，EN61000-4-2，-3，-4，-5．-6，-8，-11
EN61000-6-4，EN55011 classA，Group1
EN50581

Maximum use voltage：300V (line to neutral),

7 Troubleshooting
TroubleRUN LED is not lights
RUN LED is blinking(2 second cycle：1 second on,
1 second off)
RUN LED is blinking(1 second cycle：0.5 seconds
on, 0.5 seconds off)
Communication error occurs

Probable cause
Auxiliary supply is not applied.
(Wiring mistake, Auxiliary supply is low
voltage)
Failure of equipment
Changed the communication settings while
supplying auxiliary power.
(Address, Bit rate, Parity / Stop bit)
Communication error or CRC erroroccurs
Communication cable is disconnected or notproperly connected. (Polarity etc.)
Communication settings are incorrect(Address, Bit rate, Parity / Stop bit)

14

Handling
Please by applying an
auxiliary supply.
Replacement of equipment
Auxiliary power off,
Apply auxiliary power again.
・Please check the CRC
・Please refer to the"communication error occurs"
Please check the communication
cable
Please check the communication
setting

FCTT-222-020

Tokyo Office : 11-13, Hitotsuya 1-chome, Adachi-ku, Tokyo, 121-8639, JAPAN.
TEL：+81-3-3885-2411 , Fax：+81-3-3858-3966
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TEL：+81-774-55-1391 , Fax：+81-774-54-1353
DATE：March 25, 202215