Overview
The Yokogawa AAP135‑S50 is an 8‑channel isolated pulse input module designed for use in industrial DCS systems. It accepts contact ON/OFF signals, voltage pulses, or current pulses with high input frequency capability, supporting applications such as flow measurement and event counting.
General Information
Brand: Yokogawa
Country of Origin: Japan
Model Number: AAP135‑S50
Product Type: Pulse Input Module
Application: Pulse signal acquisition in industrial automation, distributed control and safety systems
Power Specifications
Supply Voltage: 5 V DC or 24 V DC (module variant dependent)
Maximum Current Consumption: Approx. 300 mA at 5 V, approx. 400 mA at 24 V
Protection: Isolation between input channels and system, robust industrial protection
Communication & Interface
Channels: 8 isolated input channels
Input Types: Contact ON/OFF, voltage pulses, current pulses
Input Frequency Range: Up to approximately 10 kHz
Diagnostics: LED indicators for channel status, fault detection and wiring integrity
Environmental
Operating Temperature: –20 °C to +70 °C
Humidity: Up to 95% RH, non‑condensing
Installation: Panel or rack mounted in industrial control environment
Dimensions & Weight
Dimensions (L × W × H): 107.5 × 32.8 × 130 mm
Weight: 0.30 kg
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