The ABB DO930 (3BDS014114) is a specialized 6-channel digital relay output module engineered for the S900 I/O system. Designed for demanding industrial environments, this module facilitates reliable switching of field devices through six independent relay channels, each providing robust electrical isolation.
Features
Six independent relay output channels.
Supports a wide output voltage range up to 250V AC/DC.
High current capacity of 2A per channel.
Integrated support for power and communication redundancy to ensure high availability.
Advanced maintenance features including hot-swap capability and hot configuration in run (HCIR).
Applications
This module is primarily utilized within the ABB S900 remote I/O system, serving as a critical interface for signal conditioning and control in process automation, distributed control systems (DCS), and hazardous area applications where reliable digital switching is required.
Technical Specifications
Model
DO930
Order Code
3BDS014114
System Series
S900 I/O
Output Channels
6
Max Voltage
250V AC/DC
Max Current
2A per channel
Isolation
Individual channel isolation
Redundancy
Power and Communication
Hot Swap
Supported
Installation Guidelines
Ensure the S900 I/O system is powered down before inserting or removing the module from the base unit to prevent electrical arcing or damage to the backplane.
Verify that the module is correctly seated in the assigned slot to ensure proper engagement of the communication and power bus.
Maintain proper grounding practices for the entire S900 rack assembly to minimize electromagnetic interference (EMI).
Ensure wiring to the relay terminals adheres to local electrical codes, particularly when switching high-voltage AC/DC loads.
Keep the module area free from excessive dust and moisture to maintain long-term reliability.
FAQ
Does the DO930 support hot swapping? Yes, the DO930 is designed for hot-swap functionality, allowing for module replacement without shutting down the entire I/O rack.
What is the maximum current rating for the outputs? Each of the six channels is rated for a maximum current of 2A.
Can this module be configured while the system is running? Yes, the module supports hot configuration in run (HCIR), enabling system adjustments without interrupting the process.
