Takex F70A Series - User Manual

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Digital indication of sensing information
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Simple operation for setting functions
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Direct reading of stablility level is
available along with received light level
and displace-ment indications
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LCD with backlight for ease of reading
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Various convenient functions provided
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Full auto/auto teaching
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Anti Mutual Interference
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Manual sensitivity setting
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Off-delay timer
F70Aseries
Variation
Simple operation
Simple operation featured
Type
Digital display
general-
purpose type
NPN output
F70AR
F70AG
F70AB
F70AW
PNP output
F70ARPN
F70AGPN
F70ABPN
F70AWPN
Light source
Red LED
Green LED
Blue LED
White LED
Output mode
Open collector
(NPN/PNP)
Model
press
press
press
Received light level and
displacement indications
alternate every time the button
is pressed “once.”
Self-diagnosis
stability indication
Easily viewable color panel
Press “twice” for auto teaching
and hold down for “3 seconds”
for full auto teaching
Press and hold down for “3 seconds”
for switching between operation
modes/light emission frequency
channels for Anti Mutual Interference.
Digital display
Fiber optic sensors
8
Fiber optic sensors

Summary

F70 A Series Digital Display Features

Digital Indication of Sensing Information

Provides real-time sensing data on the LCD screen.

Simple Operation for Setting Functions

Easy configuration of sensor settings directly on the unit.

Direct Reading of Stability Level

Allows immediate assessment of signal stability alongside light level.

LCD Display with Backlight

Clear and readable display for easy monitoring, even in low light.

Convenient Functions Provided

Includes auto teaching, mutual interference, and off-delay timer functionalities.

F70 A Series Operation Modes

Received Light Level and Displacement Indications

Indications alternate on the display upon button press.

Self-diagnosis Stability Indication

Provides an indication of the sensor's stability status.

Easily Viewable Color Panel

Features a color panel for enhanced visibility.

Simple Operation Button Actions

Details on button presses for auto-teaching and mode switching.

F70 A Series Indication Modes

Level Indication Mode

Displays received light level in a 4-digit number.

Displacement Indication Mode

Shows deviation from activation level as a positive or negative value.

F70 A Series Teaching and Detection Features

Enhanced Teaching Features

Covers Full auto, Auto, Position, Maximum sensitivity, and Manual settings.

Secure Detection with Off-Delay Timer

Ensures detection of high-speed objects with a 40ms off-delay.

F70 A Series Performance and Specifications

Rating and Performance Details

Details on power supply, current consumption, and output ratings.

Operational Specifications

Includes timer functions, response time, light sources, and indicators.

Sensitivity Setting and Functions

Covers sensitivity adjustment, mutual interference, and self-diagnosis features.

Environmental Specifications

Details ambient light, temperature, humidity, and protection ratings.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

The F70A and F70 series are advanced digital display fiber optic sensors designed for precise and reliable detection in various industrial applications. These sensors offer a combination of high accuracy, user-friendly operation, and robust performance, making them suitable for demanding environments.

Function Description

The F70A and F70 series sensors provide digital indication of sensing information, allowing for easy monitoring and adjustment. They are equipped with an LCD display, often with a backlight, for clear readability of received light levels and displacement indications. The sensors utilize an open collector output mode, supporting both NPN and PNP configurations, and are available with red, green, blue, or white LED light sources to suit different detection needs.

A key feature is the ability to display received light levels in a 4-digit number (0 to 1023) or as a displacement value relative to an activation level. This displacement mode shows the current received light level as a positive or negative deviation from the set activation level, which is taken as the reference (±0). This is particularly useful for applications requiring precise positioning or detection of small variations.

The F70 series, specifically, boasts unparalleled "high resolution" for highly accurate detection and a longer detecting distance, approximately 2-X that of conventional Takex models. This is achieved through a wide dynamic range and a built-in high-resolution electronic volume that frequently switches sensitivity ranges, each divided into 1024 levels. This ensures high resolution is maintained across a broad dynamic range.

Important Technical Specifications

Power Supply: 12-24V DC ±10% with a ripple of 10% max. Current Consumption:

• F70A/F70: 39 mA max (NPN), 50 mA max (PNP)
• F70A/F70 high-performance: 39 mA max (NPN), 50 mA max (PNP)

Output:

• Control Output (NPN/PNP): Open collector output.
  • F70A/F70: Sink current 100 mA (30 VDC max.) / Residual voltage: 1 V or less (NPN); Source current 100 mA (30 VDC max.) / Residual voltage: 2 V or less (PNP).
  • F70A/F70 high-performance: Sink current 50 mA (30 VDC max.) / Residual voltage: 1 V or less (NPN); Source current 50 mA (30 VDC max.) / Residual voltage: 2 V or less (PNP).
• Stability Output (NPN/PNP): Open collector output.
  • F70A/F70: Sink current 50 mA (30 VDC max.) / Residual voltage: 1 V or less (NPN); Source current 50 mA (30 VDC max.) / Residual voltage: 2 V or less (PNP).

Response Time:

• F70A/F70:
  • Light emission frequency channel 1: 600 µs max.
  • Light emission frequency channel 2: 700 µs max.
• F70A/F70 high-performance:
  • Light emission frequency channel 1: 500 µs max.
  • Light emission frequency channel 2: 600 µs max.
• F71 (H type sensor): 30 µs.

Light Source (Wavelength):

• Red LED (660nm)
• Green LED (525nm)
• Blue LED (470nm)
• White LED

Timer Functions:

• F70A/F70: Off delay/disabled selectable (delay time: 40 ms fixed).
• F70A/F70 high-performance: On delay/off delay/on-off delay/disabled selectable (delay time: selectable between 10, 20, 40, 60, 80, 100, and 120 ms; default: 40 ms).
• F71: On-delay, off-delay, and on-off delay timer functions are provided. Delay time setting is variable between 10 ms, 20 ms, 40 ms, 60 ms, 80 ms, 100 ms, and 120 ms.

Environmental Specifications:

• Ambient Light: Incandescent lamp: 10,000 lx / Sunlight: 20,000 lx.
• Ambient Temperature:
  • 1-3 adjacent units: -25 to +55 °C
  • 4-10 adjacent units: -25 to +50 °C
  • 11-16 adjacent units: -25 to +45 °C
  • Storage: -40 to +70 °C (non-freezing).
• Ambient Humidity: 35-85% RH (non-condensing).
• Protective Structure: IP40.
• Vibration: 10-55 Hz / 1.5 mm amplitude / 2 hours each in 3 directions.
• Shock: 500 m/s² / 3 times each in 3 directions.

Connection: Permanently attached cord (outer dimension: dia. 4.8) 0.2sq. 3 core 2 m length (F70A/F70) or 5 core 2 m length (F70A/F70 high-performance). M8 connector type also available.

Mass: Approx. 80 g (including 2-m cord and mounting bracket).

Usage Features

Simple Operation:

• F70A/F70: Features two set buttons and a mode selector switch (RUN/SET or RUN/SELECT/MODE) for easy configuration. Received light level and displacement indications alternate with a single press of a button.
• F71: Equipped with an 8-turn sensitivity adjustment with a position indicator for direct reading of the adjustment position. It also has 8/4 switch for setting Anti Interference feature and operation-mode switches between Light-ON and Dark-ON /timer output.

Enhanced Teaching Features (Sensitivity Setting):

• Full Auto Teaching: Allows easy teaching by simply pressing a button, even for high-speed objects. The teach hold feature displays maximum and minimum data.
• Auto Teaching: 2-point teaching (with/without work) enables detection of slight level differences, such as the thickness of a work piece or the presence of a film.
• Positioning Teaching: Ideal for high-accuracy positioning requiring precise determination of a detecting point.
• Maximum Sensitivity Setting: For applications needing maximum sensitivity, such as through-beam type fiber optic cables, the extra-powerful light allows use in adverse environments.
• Manual Setting: Allows arbitrary manual increase and decrease of a "set-point" level while checking operation.

Anti Mutual Interference Feature:

• F70A/F70: Prevents false operation due to mutual interference. Pressing and holding a button for 3 seconds switches between operation modes/light emission frequency channels for Anti Mutual Interference.
• F71: Allows adjacent installation of up to 8 units. Supports anti-interference for up to 4 sensors (response time: 250 µs) or up to 8 sensors (response time: 500 µs, turbo function enabled).

Auto Sensing Function: Constantly monitors received light levels, detects fluctuations, and automatically adjusts activation/deactivation levels. This ensures stable detection at optimum sensitivity, even with frequent fluctuations due to dust or water drops.

Manual Hysteresis Setting: Hysteresis can be arbitrarily set to suit the application, allowing for small hysteresis for severe, high-accuracy detection or large hysteresis for detecting large variations and preventing chattering.

Turbo Function (F71): Increases detecting distance by 30% when enabled, useful for current conditions where increased distance is desirable.

Off-Delay Timer (F70A/F70): Ensures secure detection of instantaneous signals with a 40ms off-delay, allowing for a wider range of input conditions for connected devices.

Maintenance Features

Self-Diagnosis Stability Indication:

• F70A/F70: Provides a stability indication (green LED) and self-diagnosis feature.
• F71: Flashes to indicate degradation of received light intensity.
• Easy-to-Understand Stability Function (F71): When four consecutive detections with a received light level of 120% or lower of the activation level occur, the stability output is activated, and the stability indicator flashes an alert.

LCD with Backlight: Enhances readability of sensing information, received light levels, and displacement indications, making it easier for users to monitor the device's status.

Optional Parts:

• End unit (FA7EU): DIN rail mounting stopper.
• Mounting bracket (AC-BF2): Amplifier unit mounting bracket.

These features collectively ensure that the F70A and F70 series fiber optic sensors are highly adaptable, precise, and easy to manage for a wide range of industrial automation tasks.

Takex F70A Series Specifications

General

Brand	Takex
Model	F70A Series
Category	Accessories
Language	English