Sunx FX-7 series, FX-7, FX-75, FX-7G, FX-7P Instruction Manual

INSTRUCTION MANUAL

FX-7 Series

Automatic Sensitivity Stetting Fiber SensorSlim type

Never use this product as a sensing device for personnel protection.
In case of using sensing devices for personnel protection, use
products which meet standard, such as OSHA, ANSI or IEC etc.,
for personnel protection applicable in each region or country.

WARNING

Thank you very much for using SUNX products. Please read this Instruction
Manual carefully and thoroughly for the correct and optimum use of this
product. Kindly keep this manual in a convenient place for quick reference.

Item

Supply voltage

Current consumption

Sensing output

Self-diagnosis
output

External inputs

• External synchronization input

• Emission disable input

• Remote sensitivity setting input

Response time

Timer function

Ambient temperature

Material

Accessory

NPN output

FX-7 FX-75 FX-77

12 to 24V DC ± 10%, Ripple P-P 10% or less

30mA or less

NPN open-collector transistor

• Maximum sink current: 100mA

• Applied voltage: 30V DC or less
(between sensing output and 0V)

• Residual voltage:

1.0V or less (at 100mA sink current)

0.4V or less (at 16mA sink current)

Selectable either Sensing-ON or Non-sensing-ON by the ON/OFF buttons

Incorporated

ON under unstable sensing (this signal lasts approx. 40ms) or

ON when sensing output is short-circuited (signal lasts till short-circuit is rectified) (

Note 2

)

Signal condition

High ... 4.5 to 30V, or open
Low ... 0 to 1V
Input impedance: 10kΩ

0.5ms or less ( When using interference prevention function: 0.7ms or less)

Approx. 40ms fixed off-delay timer (Selectable with timer operation selection switch) (Except for FX-75, FX-75G)

–10 to +50°C (No dew condensation or icing allowed), Storage: –20 to +70°C

35 to 85% RH, Storage: 35 to 85% RH

Enclosure: Heat-resistant ABS, Enclosure cover: Polycarbonate, Fiber lock lever: PPS

MS-DIN-2 (Amplifier mounting bracket): 1 No.

PNP output

FX-7P

Standard type

External synchronization input type

Remote sensitivity setting type

Standard type

Output operation

Output operation

Short-circuit protection

Short-circuit protection

Model

No.

Ty

pe

Red LED

Green LED

FX-7G FX-75G

FX-77G

FX-7GP

Ambient humidity

Plug-in connector type is specified by suffix ‘J’ at the end of the model number. (Standard type only)
e.g.) Plug-in connector type of FX-7 is‘FX-7J’.
The remote sensitivity setting type are in the ON state for approx. 40ms even after
accepting the remote sensitivity setting input.

Notes: 1)

2)

NPN output type

PNP open-collector transistor

• Maximum source current: 100mA

• Applied voltage: 30V DC or less
(between sensing output and +V)

• Residual voltage:

2.0V or less (at 100mA source current)

1.0V or less (at 16mA source current)

PNP output type

NPN open-collector transistor

• Maximum sink current: 50mA

• Applied voltage: 30V DC or less
(between self-diagnosis output and 0V)

• Residual voltage:

1.0V or less (at 50mA sink current)

0.4V or less (at 16mA sink current)

NPN output type

PNP open-collector transistor

• Maximum source current: 50mA

• Applied voltage: 30V DC or less
(between self-diagnosis output and +V)

• Residual voltage:

2.0V or less (at 50mA source current)

1.0V or less (at 16mA source current)

PNP output type

FX7

Fiber lock lever

Stopper

Fiber cable

1

2

3

FX7

Beam-receiving part

Beam-

emitting part

Beam-receiving part

(multi-core)

Coaxial fiber
cable

Beam-emitting part (single-core)

How to mount the amplifier

Fit the rear part on the attached
amplifier mounting bracket
(MS-DIN-2) or a 35mm width DIN rail.

Press down the front part of the
amplifier on the amplifier mounting
bracket (MS-DIN-2) or the DIN rail
to fit it.

How to remove the amplifier

Push the amplifier forward.
Lift up the front part of the
amplifier to remove it.

How to connect the fiber cables

Attached amplifier mounting bracket
or 35mm width DIN rail.

FX7

1

2

1

2

Snap the fiber lock lever down.
Insert fiber cables slowly into the
inlets until they stop. (Note 1)
Lock the fiber lock lever in the
original position, till you feel a
click.

With the coaxial reflective type fiber, such as, FD-G4, FD-FM2, insert the
center fiber cable (single-core) into the beam-emitting inlet and the outer fiber
cable (multi-core) into the beam-receiving inlet. If they are inserted in reverse,
the sensing accuracy will deteriorate.

Notes: 1)

2)

In case the fiber cables are not inserted to a position where they stop, the
sensing range reduces.

Make sure to carry out the wiring in the power supply off condition.
Verify that the supply voltage variation is within the rating.

Avoid dust, dirt, and steam.

Extension up to total 100m is possible with a 0.3mm2, or more, cable.

If power is supplied from a commercial switching regulator, ensure
that the frame ground (F.G.) terminal of the power supply is connect­ed to an actual ground.

In case noise generating equipment (switching regulator, inverter
motor, etc.) is used in the vicinity of this product, connect the frame
ground (F.G.) terminal of the equipment to an actual ground.

The self-diagnosis output is not incorporated with a short-circuit
protection circuit. Do not connect it directly to a power supply or a
capacitive load.

Do not run the wires together with high voltage lines or power lines
or put them in the same raceway. This can cause malfunction due to
induction.

Do not use during the initial transient time (0.5 sec.) after the power
supply is switched on.

Take care that the product does not come in direct contact with
water, oil, grease or organic solvents, such as, thinner, etc.

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5V

5V

ZD2

Tr2

Tr1

ZD1

D

Sensor circuit

+

–

12 to 24V DC
± 10%

(Brown) +V

Color code

(Black) Sensing output

(Blue) 0V

(Orange) Self-diagnosis
output

Internal circuit Users' circuit

(Pink) Input 1

Load

Load

100mA
max.

50mA
max.

(Violet) Input 2

NPN output type

ZD2

Tr3

Tr4

ZD1

+

–

Sensor circuit

(Black) Sensing output

(Blue) 0V

Internal circuit Users' circuit

(Orange)

Self-diagnosis output

Load

Load

D

100mA max.

50mA
max.

PNP output type

12 to 24V DC
± 10%

(Brown) +V

Color code

Model No.

External synchronization input (ES)

Remote sensitivity setting OFF input (R.OFF)

Remote sensitivity setting ON input (R.ON)

Input 1

Input 2

FX-7(P)
FX-7G(P)

FX-75
FX-75G

FX-77
FX-77G

Emission disable input (CONT.)

Input

Mode selection switch

Timer operation
selection switch (Note)

Sensitivity setting button

ON button

OFF button

Operation
indicator (Red)

Stability
indicator (Green)

Mark

Base

Light

interrupted

condition

Thru-beam type

Reflective
type

Thru-beam type

Reflective
type

STB

OUT

Mark

Base

1. Place the fiber cable within the sensing range. (Note 1)

2. Set the mode selection switch to ‘SET’

3. Press ON button with the object present.

When ON state is recognized by the sensor,
stability indicator (green) will flash.

6.

Press ON button with object absent.

Press OFF button with object present.

5. Press OFF button with the object absent.

4.

For sensing output ON with object present

Light is

received

condition

7.

For sensing output ON with object absent

ON

OFF

ON

OFF

The stability indicator will flash twice if the sensitivity gap between
ON state and OFF state is sufficient and a stable detection is
possible.
The stablility indicator will flash continuously if stable detection

is not

possible. (Note 2)

Set the mode selection switch to ‘RUN’.
The sensitivity setting buttons become
ineffective. So, even if the buttons are pressed
by mistake , the registered sensitivity will remain
unchanged.

I/O circuit diagrams

Note: The designation of input wires differ depending on the model.

Note: Synchronization selection switch for FX-75, FX-75G.

Use of sensitivity setting buttons

(Common for all models)

Part description

Refer to the catalog as the sensing range differs according to the type of fiber
cable. The sensing range of the reflective type fiber cable is the value for
white non-glossy paper. The actual sensing distance differs according to the
color of the sensing object, its surface condition, etc.
The sensitivity can also be set under unstable sensing condition. But the
severe condition may affect the sensing.
The set sensitivity is stored in an EEPROM. Since the EEPROM has a
lifetime, the sensitivity setting cannot be done for more than 100,000 times.
Do not move or bend the fiber cable after the sensitivity setting. Detection
may become unstable.

Symbols ... D: Reverse supply polarity protection diode

ZD1, ZD2: Surge absorption zener diode
Tr1, Tr2: NPN output transistor
Tr3, Tr4: PNP output transistor

Set the mode selection switch to ‘SET’.

In case of Light-ON operation
In the dark condition, press the ON button and then the OFF button
successively. (or, make the remote sensitivity setting ON input and
then the OFF input Low successively.)
In case of Light-OFF operation
In the dark condition, press the OFF button and then the ON button
successively. (or, make the remote sensitivity setting OFF input and
then the ON input Low successively.)

Set the mode selection switch to ‘RUN’.

Applications

For getting a long sensing range with reflective type sensor.
For using thru-beam type sensor in an unfavorable sensing environment.

How to set the maximum sensitivity

Notes: 1)

2)

3)

4)

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