Product Introduction
The Emerson VE4002S1T2B Discrete Output Card is a solid-state digital output module designed for reliable on/off control of field devices in Emerson industrial control systems. It converts discrete control commands from the controller into electrical switching signals capable of driving a wide range of DC field loads. The module is engineered for stable operation in continuous industrial environments, where predictable switching behavior and electrical robustness are required.
This card is commonly installed in Emerson I/O racks as part of a distributed control architecture. Its internal circuitry is optimized to provide consistent output performance while protecting the control system from electrical faults occurring on the field side. The compact mechanical design allows high-density installation without sacrificing wiring accessibility or maintenance efficiency.
Product Specifications
| Parameter |
Specification |
| Model |
VE4002S1T2B |
| Product Type |
Discrete Digital Output Module |
| Output Channels |
16 |
| Output Technology |
Solid-state transistor outputs |
| Rated Output Voltage |
24 V DC |
| Maximum Output Current (per channel) |
0.5 A |
| Output Configuration |
Low-side / High-side via field wiring |
| Output Response Time |
≤ 1 ms |
| Electrical Isolation |
Channel-to-backplane isolation |
| Protection Features |
Short-circuit and overload protection |
| Diagnostic Capability |
Channel status and fault reporting |
| Operating Temperature |
0°C to 60°C |
| Storage Temperature |
−40°C to 85°C |
| Shock Resistance |
Up to 15 g |
| Vibration Resistance |
5–9 Hz: 3.5 mm, 9–150 Hz: 0.5 g² |
| Installation Method |
Rack-mounted I/O module |
| Dimensions |
107 × 41 × 105 mm |
| Weight |
0.5 kg |
Product Applications
-
Switching of solenoid valves in process automation systems
-
Control of relay coils and contactor inputs
-
Activation of alarm horns, beacons, and indicator lamps
-
Discrete control of actuators and auxiliary devices
-
Output signaling in batch and sequence control logic
-
Interface between controllers and external discrete equipment
-
General-purpose digital output for industrial automation systems
Product Advantages
-
High Output Density: Sixteen output channels reduce rack space requirements.
-
Fast Switching Performance: Millisecond-level response ensures accurate control timing.
-
Electrical Protection: Built-in protection minimizes damage from field wiring faults.
-
Stable Load Driving: Designed to handle inductive and resistive loads reliably.
-
Compact Mechanical Design: Suitable for high-density control cabinet layouts.
-
Industrial Robustness: Withstands vibration, shock, and continuous duty operation.
-
System Integration: Designed to operate seamlessly within Emerson control architectures.
Frequently Asked Questions
-
What types of field devices can be driven by this output card?
It is suitable for driving solenoid valves, relay coils, contactors, indicator lamps, and other 24 V DC discrete loads.
-
Is each output channel independently protected?
Yes, each channel includes protection mechanisms to limit damage from short circuits or overload conditions.
-
How fast do outputs respond to control commands?
Output switching response is typically within one millisecond, depending on system configuration.
-
Can the outputs handle inductive loads such as solenoids?
Yes, the output design supports inductive loads when proper suppression is applied at the field device.
-
Does the module provide feedback on output status?
Yes, channel status information is reported back to the control system for monitoring and diagnostics.
-
Is output behavior affected by electrical noise?
The module includes internal filtering and isolation to maintain stable operation in electrically noisy environments.
-
Can multiple outputs be switched simultaneously without performance loss?
Yes, the module is designed to handle simultaneous switching across multiple channels within rated limits.
-
Does the module require external power supplies?
No separate external power supply is required beyond the standard I/O rack power distribution.
-
How is wiring connected to the module?
Field wiring is connected through the standard I/O terminal interface associated with the rack system.
-
Is this module suitable for continuous operation?
Yes, it is designed for continuous duty operation in industrial control systems.
Recommended Related Models (Same Series or Function)
| Model |
Function |
Dimensions (mm) |
Weight (kg) |
| VE4001S1T2B |
Discrete Output Module |
107 × 41 × 105 |
0.48 |
| VE4003S1T2B |
High-Current Discrete Output Module |
115 × 45 × 110 |
0.60 |
| VE3002S1T1B |
Discrete Input Module |
107 × 41 × 105 |
0.45 |
| VE3005S1T2B |
Digital Input Module |
107 × 41 × 105 |
0.46 |
| VE3100S1T2B |
Analog Output Module |
107 × 41 × 105 |
0.80 |
| VE3200S1T1B |
Communication Interface Module |
120 × 55 × 110 |
0.50 |
Popular Emerson Models (Same Brand)
| Model |
Function |
Dimensions (mm) |
Weight (kg) |
| VE3000S1T1B |
Universal Input Module |
107 × 41 × 105 |
0.45 |
| VE3005S1T2B |
Discrete Input Card |
107 × 41 × 105 |
0.46 |
| VE3105S1T2B |
Precision Analog Output Module |
115 × 50 × 110 |
0.85 |
| VE3201S1T1B |
Network Interface Module |
120 × 55 × 110 |
0.52 |
| VE3400S1T1B |
Controller Module |
140 × 65 × 130 |
0.60 |
| VE3600S1T1B |
Redundant Interface Module |
135 × 60 × 125 |
0.58 |
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