Product Overview

The Honeywell 2MLQ-RY1A is a high-quality digital output module. It belongs to the reliable MasterLogic-200 PLC series. This module provides 8 point relay isolation outputs. Each point supports a rated load of DC24V 2A or AC220V 2A. The 2MLQ-RY1A works perfectly for industrial automation systems. It controls solenoids, contactors, and small motors. This module ensures safe switching with a low off leakage current.

Technical Specifications

The 2MLQ-RY1A uses relay isolation for strong electrical separation. It has a rated load voltage of DC24V 2A for resistive loads. This module also accepts AC220V 2A at COSφ = 1. The minimum load voltage is DC5V at 1mA. You can use loads up to AC250V or DC125V maximum. The off leakage current stays below 0.1mA at AC220V, 60Hz. This low leakage prevents false triggering. The maximum on/off frequency is 3600 times per hour. The 2MLQ-RY1A does not include a built-in surge absorber. It consumes 260mA when all points are turned on. Each output point has a clear LED operation indicator. The LED turns on when the output is active.

Mechanical and Environmental Data

This module weighs only 0.13 Kg. It has a compact design for easy panel installation. The operating temperature range is 0°C to 55°C. The storage temperature range is -25°C to 70°C. It operates at 5% to 95% relative humidity without condensation. The 2MLQ-RY1A offers strong resistance to noise and vibration. It meets industrial electromagnetic compatibility (EMC) standards. This ensures stable operation in harsh factory environments.

Installation Guide

Follow these steps to install the 2MLQ-RY1A correctly.

• Step 1: Turn off all power to the MasterLogic-200 rack.

• Step 2: Align the module with the guide slots on the rack.

• Step 3: Push the module firmly until it clicks into place.

• Step 4: Secure the module using the top and bottom locking screws.

• Step 5: Connect the external load wiring to the terminal block.

• Step 6: Apply a torque of 0.5 Nm to 0.6 Nm for each screw terminal.

• Step 7: Double-check that the load voltage matches DC24V or AC220V.

• Step 8: Power on the system and verify the LED indicators.

Always use a separate power supply for relay loads. Avoid connecting inductive loads without an external snubber circuit. The 2MLQ-RY1A has no internal surge suppression. Add an external varistor or diode for inductive load protection.

Package Contents

• 1 x Honeywell 2MLQ-RY1A relay output module

• 1 x 20-pin terminal block connector

• 1 x Product label sheet

• 1 x Quick installation guide

Common FAQs

Q1: Can the Honeywell 2MLQ-RY1A switch both AC and DC loads?
Yes, the 2MLQ-RY1A switches both AC and DC loads. It handles up to AC220V 2A and DC24V 2A.

Q2: What happens if I exceed 3600 on/off cycles per hour?
Exceeding 3600 cycles per hour will shorten the relay lifespan. The 2MLQ-RY1A may experience contact welding or failure.

Q3: Does this module need an external surge suppressor for inductive loads?
Yes, always add an external surge suppressor. The 2MLQ-RY1A has no built-in surge absorber for protection.

Q4: How do I know if the output point is working correctly?
Each output point has a dedicated LED indicator. The LED lights up when the 2MLQ-RY1A turns on that channel.

Q5: What is the minimum load required for reliable contact operation?
The minimum load is DC5V at 1mA. Using a lower load may cause poor contact performance.

Related Accessories

Use a relay socket for easy replacement of the 2MLQ-RY1A. Consider external diode modules for DC inductive loads. For AC loads, select an RC snubber circuit. These accessories ensure long relay contact life. They also reduce electrical noise in your control panel.