SDV144-S63 | Yokogawa | 16-Channel 24V DC Digital Input Module

Overview

The SDV144-S63 from Yokogawa is a 16-channel digital input module engineered for reliable process monitoring in automation systems. It handles no-voltage contact signals with precise input response and isolation between channels. Designed for industrial environments, it features an external signal cable interface and ISA G3 conformal coating, allowing operation over a wide temperature range of -20°C to 70°C. The module supports robust connection methods including pressure clamp terminals and dedicated signal cables.

Key Features

• Model Number: SDV144-S63

• Channels: 16 digital input channels

• Input Type: No-voltage contact, ON: ≤1 kΩ, OFF: ≥100 kΩ

• Input Current: 6 mA ±20% (using external 24 V DC supply at 0 Ω input)

• Contact Rating: 24 V DC ±20% / 10 mA minimum

• External Power Supply: 24 V DC ±20%, max 200 mA

• Instantaneous Maximum Voltage: 30 V DC

• Input Response Time: 40 ms max

• Isolation: Module-level isolation for improved signal integrity

• Withstand Voltage: 2 kV AC between input and system for 1 minute (16-input line collectively)

• Current Consumption: 290 mA max (5 V DC), 140 mA max (24 V DC)

• External Connection: Pressure clamp terminals, MIL cable, dedicated signal cable (AKB331)

• Environmental Protection: ISA Standard G3 coating, operating temperature -20°C to 70°C

• Suffix Codes: S = Standard, 6 = Signal cable interface adapter, no explosion protection, 3 = G3 coating and extended temperature

Applications

The SDV144-S63 is suitable for a range of digital signal acquisition applications, including:

• Monitoring discrete process signals in control systems

• Integration with PLC and DCS systems

• Oil & gas and chemical plant signal monitoring

• Power generation systems and substation monitoring

• Industrial installations requiring robust temperature-tolerant I/O modules

FAQ

• Q1: What type of signals can the SDV144-S63 accept?
  A1: The module accepts no-voltage contact signals with ON ≤1 kΩ and OFF ≥100 kΩ.

• Q2: Can this module handle outdoor environments?
  A2: Yes, with appropriate housing and within the -20°C to 70°C range, it is suitable for harsh conditions.

• Q3: What is the response time for input signals?
  A3: The maximum input response time is 40 milliseconds.

• Q4: How is the module connected to external systems?
  A4: Connections are via pressure clamp terminals, MIL cable, or dedicated signal cable AKB331.