IS421UCSBH4A - Safety Controller Module

IS421UCSBH4A - Safety Controller Module IS421UCSBH4A - Safety Controller Module

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Part Number: IS421UCSBH4A
Manufacturer: General Electric
Series: Mark VIeS
Product Type: Safety Controller Module
Number of channels: 24
Power supply voltage: 28 V dc
Analog output current: 0-20 mA
ControlST Software Suite Version: V06.01
Voltage Range: 14 to 32 V dc
Outputs: 24 V dc
Mounting: DIN-rail mounting
Technology: Surface mount
Operating temperature: -30 to 65°C
Size: 33.02 cm high x 17.8 cm
Humidity: 5 to 95%
Repair: 3-7 Day
Availability: In Stock
Weight: 2 lbs
Country of Origin: United States
Manua:l GEH-6855


IS421UCSBH4A is a Safety Controller Module manufactured and designed by General Electric as part of the Mark VIeS Series used in GE Distributed Control Systems. A safety controller module is a specialized electronic device used in various industrial applications to ensure the safety of machinery and processes. Its primary function is to monitor and control safety-related functions, such as emergency stops, safety interlocks, and other safety-critical components. Here are some key features and functions of a safety controller module:

Safety Monitoring: The safety controller module constantly monitors the status of safety-critical components and sensors, such as emergency stop buttons, light curtains, safety gates, and safety switches.

Risk Assessment: It assesses the level of risk associated with specific operations and implements safety measures accordingly. This may involve defining safety zones and establishing safe operating parameters.

Emergency Stop Control: In the event of a hazardous situation or an emergency, the safety controller can execute an immediate stop or shutdown of machinery or processes to prevent accidents or injuries.

Interlocking: Safety controller modules often manage interlocking systems to ensure that certain conditions must be met before equipment or processes can be activated. For example, a safety gate must be closed before a machine can start.

Fault Detection: They detect faults or failures in safety-related components and provide diagnostics to alert operators or maintenance personnel to take corrective action.

Safety Logic: Safety controllers use predefined safety logic or safety-rated programming languages to execute safety functions accurately and reliably.

Communication: Many modern safety controller modules support communication protocols, allowing them to exchange safety-related data with other control systems, such as PLCs (Programmable Logic Controllers) or SCADA (Supervisory Control and Data Acquisition) systems.

Redundancy: To enhance reliability, some safety controller modules offer redundancy options, ensuring that safety functions continue to operate even in the presence of a hardware failure.

Certification: Safety controller modules are often designed and certified according to industry-specific safety standards (e.g., ISO 13849, IEC 61508) to ensure they meet rigorous safety requirements.

Integration: They can be integrated into existing control systems to provide a comprehensive safety solution for industrial processes.

WOC has the largest stock of GE Distributed Control System Replacement Parts. We can also repair your faulty boards. WORLD OF CONTROLS can also supply unused and rebuilt backed-up with a warranty. Our team of experts is available round the clock to support your OEM needs. Our team of experts at WOC is happy to assist you with any of your automation requirements. For pricing and availability on any parts and repairs, kindly get in touch with our team by phone or email.


What is a safety controller module in turbine control?

A safety controller module in turbine control is a specialized electronic device used to monitor and manage safety functions within a gas turbine or steam turbine system. It ensures safe operation and helps prevent accidents or catastrophic failures.

Why is a safety controller module essential in turbine control systems?

Safety controller modules are crucial in turbine control systems to detect and respond to potentially hazardous conditions promptly. They help prevent accidents, protect personnel, and safeguard expensive turbine equipment.

What is the role of redundancy in safety controller modules for turbines?

Redundancy in safety controller modules is crucial to enhance system reliability. It ensures that if one component fails, a backup component takes over to maintain safety functions.