Allen Bradley 1606-XL240DR Redundant Power Supply Installation Guide
Time:2026-07-13 Browse: 0
Allen Bradley 1606-XL240DR Redundant Power Supply Installation Overview
The Allen Bradley 1606-XL240DR Redundant Power Supply Installation Guide focuses on reliable 24VDC control power design, correct DIN rail mounting, and stable commissioning for industrial automation systems. In many PLC Controller cabinets, unexpected controller resets are not caused by the PLC hardware itself but by unstable DC power wiring, insufficient current capacity, or incorrect grounding.
The Allen Bradley 1606-XL240DR is a redundant power supply designed for industrial control applications where continuous 24VDC power availability is required. It is commonly installed in PLC systems, remote I/O panels, communication cabinets, and machine control systems that require improved power reliability.
During installation, engineers should evaluate the complete System Configuration, including PLC Controller load, I/O modules, field devices, and communication equipment. A correct power architecture prevents voltage drops and improves overall machine availability.
Allen Bradley 1606-XL240DR Power Supply Setup Preparation Before Installation
A successful Allen Bradley 1606-XL240DR Setup and Commissioning process begins before the power supply is mounted inside the control cabinet.
Before installation, engineers normally verify:
Required input voltage level
Total 24VDC load consumption
Redundant power supply arrangement
Cabinet ventilation conditions
Protection device selection
DC cable routing
The 1606-XL240DR provides a 24VDC output with a rated power of 240W and a maximum output current of 10A. When connected to a PLC Controller system, the actual load should include startup current from communication modules, sensors, valves, and remote I/O devices.
In one machine upgrade project, a customer replaced an older power supply with the 1606-XL240DR because frequent PLC communication interruptions occurred during production startup. Before replacement, engineers measured the 24VDC line and found a temporary drop from 24.1VDC to 21.6VDC when multiple output modules were activated.
The investigation showed that the original power supply was operating too close to its capacity limit.
Allen Bradley 1606-XL240DR Redundant Power Supply Wiring Method
Correct wiring is a critical part of the Allen Bradley 1606-XL240DR Installation Guide.
The main wiring considerations include:
Connect AC input according to the selected voltage range
Ensure protective earth connection is reliable
Maintain correct 24VDC polarity
Use appropriate wire size for the current load
Separate power wiring from analog signal cables
For PLC applications, the 24VDC distribution line should avoid unnecessary cable extensions. Long cable distances can create voltage loss, especially when connected devices have high startup current.
During field commissioning, engineers often check voltage at two points:
Power supply output terminal
Remote PLC or I/O device terminal
If the difference exceeds acceptable limits, the issue is usually related to cable resistance or terminal connection quality rather than the power supply itself.
Allen Bradley 1606-XL240DR DIN Rail Mounting and System Commissioning
The mechanical installation of the 1606-XL240DR requires sufficient airflow and proper DIN rail positioning.
After mounting, the Allen Bradley 1606-XL240DR Commissioning process includes:
Confirming input voltage
Measuring output voltage without load
Checking voltage stability with PLC load connected
Verifying DC OK indication
Monitoring current consumption
A practical commissioning example:
During initial startup, the measured values were:
No-load output: 24.3VDC
PLC Controller and I/O connected: 24.0VDC
Full machine operation: 23.8VDC
The stable voltage confirmed that the power supply installation and System Configuration were correct.
Allen Bradley 1606-XL240DR Installation Validation in Industrial Applications
In one commissioning case, an automation cabinet used the 1606-XL240DR to supply a ControlLogix PLC Controller, Ethernet communication modules, and field sensors.
The first startup test showed intermittent network alarms.
Engineers did not immediately replace the power supply. Instead, they performed signal analysis:
Checked DC voltage waveform
Compared PLC restart time with voltage fluctuation
Measured current during actuator activation
The result showed that the power supply output remained stable, but a loose DC terminal created intermittent power interruption.
After tightening terminals and improving cable installation:
24VDC remained stable at 23.9–24.1VDC
PLC communication faults disappeared
Machine startup became consistent
This case demonstrates that proper Installation Guide procedures require both electrical testing and system-level verification.
Allen Bradley 1606-XL240DR Technical Information
Brand: Allen Bradley
Product Type: Redundant Power Supply
Series: 1606-XL
Application: PLC Controller Power, Industrial Control Systems
Country of Origin: Czech Republic
Power Specifications
Output Voltage: 24VDC
Output Power: 240W
Output Current: 10A
Input Voltage: 100–120VAC / 200–240VAC
Mounting Type: DIN Rail
Environmental
Operating Temperature: 0°C to +70°C
Installation Location: Industrial Control Cabinet
Cooling Method: Natural Air Cooling
Dimensions & Weight
Dimensions: Approximately 124 × 120 × 102 mm
Weight: Approximately 0.98 kg
