QY20-4AD 4-Channel Analog Input Module 16-bit Voltage Current Acquisition Expansion Module for ZQ600 PLC QY20 Coupler

QY20-4AD is a 4-channel analog input expansion module compatible with ZQ600 PLC and QY20 series coupler. It collects standard industrial voltage and current signals such as -10~10V and 4-20mA. Equipped with isolation circuit, adjustable filter, overflow & disconnection fault detection, this 16-bit high-precision module adopts DIN rail mounting with IP20 protection. Compact and anti-interference, it is widely used for sensor signal acquisition in automated equipment.

Item No :
QY20-4AD
Order(MOQ) :
20
Payment :
Paypal/TT/Western Union
Product Origin :
Shanghai, China
Lead Time :
18-30 days
Weight :
5 kg

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The QY20-4AD is a compact 4-channel analog input expansion module designed for ZQ600 series PLC and QY20 series coupler IO expansion systems, specialized in collecting industrial analog voltage and current signals from field sensors, transmitters and measuring instruments.

Adopting high-precision A/D conversion and built-in isolation circuit design, this module supports 7 types of universal signal modes including ±10V, 0-10V, 4-20mA, 0-20mA etc. It integrates multiple practical industrial functions: configurable input filter (0–30ms), channel overflow alarm, wire breakage detection, 3 groups of optional digital data output ranges, fully compatible with CODESYS programming environment.

Ultra-thin 12mm slim body with standard 35mm DIN rail mounting, IP20 industrial protection grade, complete power/error LED status indicators, color-coded module housing for easy identification of analog input equipment. It is widely used in machinery manufacturing, water treatment, new energy, food processing and other automated process control scenarios for precise analog signal acquisition.

Product Features

Wide Compatibility
7 Universal Analog Signal Modes
Built-in Isolation Circuit & Anti-interference Design
Complete Channel Self-diagnosis Function
Adjustable Digital Filter (0–30ms)
Visual LED Status Indication System

Technical Specifications

Description

Model

Description

Whole Machine Code

Applicable Models

QY20-4AD

4-channel analog input module

ZQ600 series PLC IO expansion

QY20 series coupler IO expansion

Component Description

Name	Function Definition
Backplane buckle	Press down to open; lift to lock.
Indicator lights	PR	Power/Operation Indicator	Red	power indicator
	ER	Error Indicator	Yellow	Constant on: System running and address allocation completed - Fast flash: Alarm or stop - Slow flash: System running, address allocation not completed
Color identification	- DI: Blue - DO: Red - AD: Green - DA: Orange - Others: Purple
Backplane connection	Backplane bus and power supply expansion
User terminal	User wiring terminal

Note:

Fast flash: 50ms on, 50ms off.

Slow flash: 50ms on, 1000ms off.

Basic Specifications

Item	Specification
IP rating	IP20
Dimensions (W×H×D)	1283100
Weight	Approximately 60g

Power Specifications

Item	Specification
Rated voltage of bus input power	DC5V
Rated current of bus input power	85mA (typical value at 5V)
Module hot-swapping function	Not supported

Input Specifications

Item	Specification
Input type	Analog input
Input channels	4 channels
Rated voltage	24V
Signal type	Selectable between voltage/current
Input filter	0–30ms (selectable)
Input current	0~20mA
Input voltage	-10~10V

Environmental Specifications

Item	Specification
Application environment	For occasions without corrosive or flammable gases, and where conductive dust (dust) is not severe.
Altitude	≤2000m
Pollution degree	Level 2
Immunity	Power supply: 2kV (IEC 61000-4-4)
Overvoltage category	I
EMC immunity level	Zone B，IEC61131‑2
Seismic resistance	IEC 60068-2-6: 5Hz–8.4Hz, 3.5mm; 8.4Hz–150Hz, 1g, X/Y/Z axes, 10 cycles/axis
Shock resistance	IEC 60068-2-27: 150m/s², 11ms, ±X/Y/Z six directions, 3 times/direction, total 18 times
Storage temperature	Relative humidity: <90%RH, no condensation
Operating temperature	Relative humidity: 10%RH–90%RH, no condensation Note: When the operating temperature exceeds the maximum, install a forced fan or air conditioner in the direction of the cooling holes.

Typical Wiring Diagram

Dimension

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QY20-4AD 4-Channel Analog Input Module 16-bit Voltage Current Acquisition Expansion Module for ZQ600 PLC QY20 Coupler

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