Emerson SE4302T02 DO 24V DC Isolated CHARM

Emerson SE4302T02 DO 24V DC Isolated CHARM - Galvanically Isolated Digital Output for DeltaV Control

The Emerson SE4302T02 DO 24V DC Isolated CHARM delivers robust digital output control for DeltaV electronic marshalling systems, providing galvanically isolated switching for solenoid valves, motor starters, and industrial actuators. Engineered for single-channel granularity and plug-and-play deployment, this CHARM module enables precise field device control while maintaining electrical isolation that protects the DCS from ground loops and electrical transients.

Core Technical Specifications

• Output Type: 24V DC isolated digital output for inductive loads
• Output Voltage Range: 4V DC to 32V DC operational range
• Current Rating: 1.0A continuous, 2A inrush (<100ms) for solenoid energization
• Galvanic Isolation: Factory tested to 1000V DC per channel
• Off-State Leakage: 1mA maximum for reliable valve closure
• Protection: 4A current-limiting with thermal shutoff and automatic reset
• Update Rate: 50ms updates to any four controllers in the system
• System Compatibility: DeltaV v11.3.1 or later with CIOC/CIOC2 carriers

Global Safety & Compliance Certifications

Certified for deployment in industrial and hazardous area installations:

• Safety Standards: UL 508, CSA C22.2 No. 107.1 (Industrial Control Equipment)
• Hazardous Locations: Class I, Div 2; Class I, Zone 2; ATEX/IECEx Ex ec nC IIC Gc
• CE Compliance: Low Voltage Directive, IEC/EN 62368-1, IEC/EN 60950-1
• EMC: EN 61326-1 Industrial Electromagnetic Compatibility
• Environmental: RoHS compliant for global market access

Industrial Control Applications

The SE4302T02 excels in demanding process control scenarios requiring isolated switching:

Solenoid Valve Control: Drive pneumatic and hydraulic solenoid valves in process isolation, emergency shutdown systems, and batch sequencing applications. The 2A inrush capability handles initial coil energization while the 1A continuous rating maintains reliable valve positioning. Galvanic isolation prevents ground loop interference in multi-valve manifold installations.

Motor Starter Interfacing: Provide isolated control signals to motor contactors, soft starters, and variable frequency drives. The 4-32V DC output range accommodates diverse control voltage requirements while electrical isolation protects the DCS from motor starter feedback and electrical noise.

Actuator Positioning: Control electric actuators for dampers, louvers, and modulating valves in HVAC, combustion air control, and process gas management systems. Configurable momentary and continuous pulse outputs enable precise positioning sequences.

Alarm & Annunciation: Drive panel-mounted indicator lights, audible alarms, and remote annunciator panels. The isolated output prevents alarm circuit faults from propagating into the control system, maintaining system integrity during fault conditions.

Advanced Isolation & Protection Features

Engineered for electrical integrity and fault tolerance:

Galvanic Isolation Technology: Each output channel features complete electrical isolation tested to 1000V DC, eliminating ground loop currents that can cause measurement errors and equipment damage. This isolation is critical in large process units where field devices may reference different ground potentials separated by hundreds of meters.

Intelligent Current Limiting: The 4A current-limiting circuit provides short-circuit protection without external fuses, automatically recovering when the fault is cleared. Thermal shutoff prevents module damage during sustained overload conditions, with automatic reset when temperatures normalize.

Inductive Load Compatibility: Optimized for solenoid coils and relay coils with 2A inrush handling for initial energization. External flyback diodes (recommended for inductive loads) suppress voltage spikes during coil de-energization, protecting both the CHARM and connected devices.

Low Off-State Leakage: Maximum 1mA leakage current ensures complete valve closure and prevents partial energization of sensitive loads. This specification is critical for fail-safe valve applications where partial energization could compromise process safety.

Flexible Output Configuration

Programmable output behaviors adapt to diverse control requirements:

• Momentary Output: Pulse output for event-triggered actions like sample collection, batch transfers, or alarm acknowledgment
• Continuous Pulse Output: Configurable duty cycle for PWM control applications or time-proportional valve positioning
• Fail-Safe Modes: Configurable output state on communication loss or controller failure for safety-critical applications

System Architecture & Redundancy

Designed for high-availability DeltaV installations:

• Redundant Communication: Fully redundant communication path from CHARM to controller via CIOC carrier
• Hot-Swappable: Field-replaceable without system shutdown using push-button release mechanism
• Multi-Controller Updates: Simultaneous 50ms updates to up to four controllers for coordinated control strategies
• Diagnostic Integration: Channel status and fault detection integrated into DeltaV diagnostics for predictive maintenance

Installation & Wiring

Streamlined deployment in DeltaV electronic marshalling cabinets:

• DIN rail mounting via CHARM I/O Carrier (CIOC/CIOC2)
• Compatible with SE4501 standard terminal block or SE4503 relay output terminal block
• Supports multi-core home run cables - no cross-wiring required
• Screw cage terminals accept 22-14 AWG (0.32-2.5mm²) wire
• Optional SE6103 protection covers (package of 12) for harsh environments
• SE4606T02 channel identifier labels (package of 8) for documentation

Environmental Specifications

Power Consumption & Physical Specifications

• CHARM Power: 22mA max @ 24V DC
• Heat Dissipation: 0.46W per module
• Dimensions: 263mm × 58mm × 28mm (10.35" × 2.28" × 1.10")
• Weight: 0.43kg (0.95 lb)

Why Choose Industrial Control Hub?

Your specialized partner for Emerson DeltaV automation solutions:

• ✓ Genuine Emerson OEM products with full factory traceability
• ✓ Expert DCS technical support from certified control system engineers
• ✓ Comprehensive inventory of current production and legacy DeltaV modules
• ✓ Fast global shipping to US, UK, EU, and Asia-Pacific regions
• ✓ Competitive pricing with volume discounts for project quantities
• ✓ Complete documentation, wiring diagrams, and integration support

Related DeltaV Digital Output CHARM Modules

Ordering Information & Accessories

• SE4302T02: DO 24V DC Isolated CHARM (this product)
• SE4501: Standard CHARM Terminal Block (4 screw terminals)
• SE4503: Relay Output Terminal Block for contact closure applications
• SE6103: CHARM Protection Cover (package of 12)
• SE4606T02: Channel Identifier Labels (package of 8)

Technical Documentation & Application Support

Complete installation manuals, control drawings, wiring diagrams, and hazardous area installation instructions available upon request. Our application engineering team provides system design consultation, load calculation assistance, and troubleshooting support for complex DeltaV implementations.

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