Suzhou Lily ZL-7901A - User Manual

Suzhou Lily Tech CO., Ltd.
1
ZL-7901A Intelligent temperature and humidity controller
Instruction Manual A1.0
Feature
ZL-7901A is an industrial intelligent temperature and humidity controller. It can connect SSR expire output and adopt PID to
control temp with high precision. It use easy touched button and big LCD display, convenient operation and easy installation.
Applicable for control of incubator, climate chamber, warehouse, and so on.
Main function
1.Temperature control, three combination output, PID high precision control is chosen.
2.Humidify and dehumidify control
3.Time air exchange control
4.Time egg turning control
5.Illumination control
6.Node alarm output
7.Auto restart function
8.Temperature/humidity over limit warning and protection function
9.Temperature/humidity sensor fault warning and protection function
Specification
◇Power supply: 100-240V, 50-60Hz
◇Controller:
Relay output(8 ways)
Analog quantity input(2 ways)
Main temp. control relay(250VAC/7.5A resistive load)
NTC temperature sensor 5K/3470
Ancillary temp. relay(250VAC/7.5A resistive load)
Humidity sensor SHR04
Humidity control relay(250VAC/7.5A resistive load)
Lamp relay(250VAC/7.5A resistive load)
Air exchange relay(250VAC/7.5A resistive load)
Egg turning relay(250VAC/7.5A resistive load)
Alarm output relay(250VAC/7.5A resistive load)
SSR
（
20mA/10VDC MAX
）
◇
Setting range: humidity 0
～
100RH, temperature 0
～
100
℃
◇
Measuring accuracy: temperature 1%, humidity 5%
◇
Working environment: -20
～
45
℃
,10
～
90RH no dewing
◇
Size: 137*89*56(mm)
◇
Hole size:122*75(mm)

Summary

Product Feature Overview

Controller Main Functions

Temperature Control with PID

High-precision temperature control using PID and three output combinations.

Humidity Management

Supports both humidification and dehumidification functions.

Timed Air Exchange

Time-based control for air exchange operations.

Timed Egg Turning

Manages egg turning based on timed intervals.

Illumination Control

Control for illumination settings.

Alarm Output Functionality

Provides alarm output signals for various events.

Automatic Restart Feature

Controller automatically restarts after power interruptions.

Over-Limit Protection

Warning and protection against exceeding temperature/humidity limits.

Sensor Fault Protection

Handles sensor faults with warnings and protection.

Technical Specifications

Power Supply Requirements

Specifies the required power input voltage and frequency.

Controller Outputs and Inputs

Details available relay outputs and analog inputs.

Setting Ranges

Defines the adjustable ranges for humidity and temperature.

Measurement Accuracy

Specifies the accuracy for temperature and humidity measurements.

Working Environment Conditions

Describes optimal temperature and humidity for operation.

Physical Dimensions

Provides controller size and required mounting hole dimensions.

Keys and Display

Control Panel Layout

Overview of the controller's display and buttons.

Key Functions

Details the meaning and function of each key.

Display Signal Indicators

Explains the meaning of various on-screen icons and signals.

Key Operation

Temperature and Humidity Setting

Procedure for setting temperature and humidity values.

System Parameter Setting

Method for accessing and modifying system parameters.

Parameters Indication

Temperature Control Parameters

Details parameters for main, auxiliary, and SSR temperature control.

PID Control Parameters

Configuration settings for PID heating control.

Humidity Control Parameters

Settings for humidity control and limits.

Advanced Parameter Settings

Humidity Limit Settings

Configuration for humidity correction and protection limits.

Egg Turning Control Settings

Parameters for left/right turning time and hatch days.

Air Exchange Control Modes

Options for air exchange control and protection modes.

Lighting Relay Functions

Settings for lighting control modes, including time and protection.

Alarm Relay Functions

Configuration for alarm output modes and protection.

Control Functions Explained

On;Off Control

Procedure for turning the controller on and off.

Main Temperature Control

Detailed explanation of main temperature control operation.

External SSR Temperature Control

Operation modes for SSR temperature control.

External SSR PID Temperature Control

Explanation of PID algorithm usage for SSR temperature control.

PID Tuning Procedure

Steps for tuning PID parameters and handling tuning errors.

Humidity Control Operation

Details on humidify and dehumidify control logic.

Egg-Turning Control Logic

Explanation of egg turning control based on time and cycles.

Operational Modes and Features

Air Exchange Control Modes

Description of various air exchange control modes and protection.

Lighting Control Modes

Explanation of lighting control based on time and limit protection.

Warning Output Control

Details on warning output logic for different conditions.

Auto Restart and Incubation Cancel

Functionality for auto restart and cancelling incubation days.

Factory Settings and Unit Switching

Procedure to restore factory settings and switch temperature units.

Warning Control Instruction

Sensor Fault Warnings

Details on actions for temperature and humidity sensor faults.

Temperature Limit Alarms

Actions for high and low temperature alarm conditions.

Humidity Limit Alarms

Actions for high and low humidity alarm conditions.

Communication Fault Alarm

Action for touched IC communication fault.

Wiring Diagram

Suzhou Lily ZL-7901A Specifications