High-Voltage AC Input for CENTUM VP and CS 3000 Systems
The ADV142 digital input module provides 16 isolated AC input channels for Yokogawa CENTUM VP and CS 3000 distributed control systems . This module directly interfaces with 200–240 V AC field signals, eliminating the need for interposing relays when monitoring high-voltage AC-powered equipment . It also supports both status input and pushbutton edge detection functions, providing flexibility for various field device connections .
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Yokogawa |
| Model | ADV142 |
| Product Type | AC Digital Input Module |
| Number of Inputs | 16 |
| Rated Input Voltage | 200 to 240 V AC, 50/60 Hz |
| Input ON Voltage (Peak) | 160 V AC (226 V) to 264 V AC (373 V) |
| Input OFF Voltage (Peak) | ≤ 40 V AC (56 V) |
| Typical Input Current | 6.2 mA per channel (at 240 V / 60 Hz) |
| Withstanding Voltage | 2 kV AC (Signal to System) |
| Response Time | ≤ 160 ms (Status Input) |
| Current Consumption | 500 mA at 5 V DC |
| Weight | 0.3 kg |
| External Connection | Pressure clamp terminal or dedicated cable (AKB333) |
| System Compatibility | CENTUM VP, CS 3000, ProSafe-RS |
| Functions | Status input, pushbutton edge detection |
| Hot-Swap Support | Yes (with proper procedure) |
| Country of Origin | Japan |
Input Characteristics and Signal Flexibility
The ADV142 module accepts AC signals within a rated voltage range of 200 to 240 V AC at 50 or 60 Hz . It employs opto-isolation on each channel, effectively protecting the control system from electrical noise and voltage transients. The module supports two functional modes: status input for standard ON/OFF detection and pushbutton input for edge counting applications . The status input response time is 160 ms, while the pushbutton input requires a minimum ON time of 200 ms and supports a maximum cycle rate of 2.5 Hz .
Physical Characteristics and Installation
The ADV142 weighs 0.3 kg and features a compact form factor that mounts into standard Yokogawa I/O racks . It uses pressure clamp terminals or a dedicated AKB333 cable for field wiring . The module’s -20°C to +70°C operating temperature range ensures reliable performance across diverse industrial environments . Furthermore, the LED indicators on the front panel display real-time channel status, simplifying diagnostics and maintenance.
Application Scenarios
This module is widely deployed in applications requiring high-voltage AC input monitoring where relay elimination is desired . It is designed for power plant utility monitoring, large motor control systems, building automation, and safety permissive systems . For 100–120 V AC applications, users should select the ADV141 module instead . The ADV142 is commonly found in oil and gas refineries, chemical plants, and power generation facilities where reliable high-voltage AC signal acquisition is essential.
Details
| Weight | 0.7 kg |
|---|---|
| Dimensions | 2.5 × 20.3 × 15.2 mm |
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