Overview

The Yokogawa SAV144-S63 Digital Input Module is engineered for reliable acquisition of binary signals from field devices such as switches, relays, and sensors. With 16 input channels in a compact design, it enables high-density digital signal monitoring in space-constrained control cabinets.

The module supports no-voltage contact inputs, with ON resistance ≤1 kΩ and OFF resistance ≥100 kΩ. Powered by an external 24 VDC supply (≈6 mA per channel), it features robust electrical isolation and fast response times, ensuring accurate performance even in harsh industrial environments.

Its compatibility with Yokogawa CENTUM CS and VP platforms allows seamless integration into distributed control systems (DCS), making it suitable for both new installations and retrofit projects.

Technical Data

Typical Applications

• Process Control Systems: Monitors limit switches, pushbuttons, and interlocks.

• Industrial Automation: Interfaces with relay contacts and sensor outputs in manufacturing lines.

• Power Generation: Tracks status of breakers, alarms, and protection relays.

• Chemical and Petrochemical Plants: Provides discrete input monitoring in hazardous zones.

• OEM Control Panels: Integrated into custom DCS cabinets for high-density digital input.

For example, in a turbine control system, the SAV144-S63 can monitor overspeed trip signals and emergency stop contacts, ensuring fast and accurate response. It is therefore critical for operational safety and system diagnostics.

FAQ

Q: How many digital inputs does the SAV144-S63 support?
A: 16 discrete input channels.

Q: What type of signals can it process?
A: No-voltage contact signals with defined ON/OFF resistance thresholds.

Q: Is it compatible with CENTUM VP systems?
A: Yes, it integrates with both CENTUM CS and CENTUM VP platforms.

Q: What is the input current requirement?
A: Approximately 6 mA ± 20% per channel from a 24 VDC external supply.

Q: Can it be used in hazardous environments?
A: Yes, it is designed for demanding industrial conditions and performs reliably under harsh environments.