Yokogawa AAP135 Pulse Input Module

The Yokogawa AAP135 is an advanced pulse input module, specifically designed for integration into the Yokogawa CENTUM CS3000 distributed control system (DCS). This module efficiently processes pulse signals from field devices, such as flow meters and counters, to monitor and control critical processes across various industries.

Key Features and Functions:

Purpose: The Yokogawa AAP135 processes pulse signals from field devices, ensuring smooth data integration into the Yokogawa DCS.
Input Signal Types: It supports several pulse signal types, including:
- Contact ON/OFF (dry contact)
- Voltage pulse
- Current pulse
Signal Isolation: The module offers comprehensive isolation, ensuring protection between:
- Field inputs and system
- Individual channels, which protects against electrical noise and faults in field wiring.
Frequency Range: Capable of handling pulse frequencies up to 10 kHz, suitable for a wide range of applications.

Channels and Redundancy:

Channels: The AAP135 typically features 8 isolated input channels to process multiple pulse signals simultaneously.
Redundancy: Supports dual-redundant configurations, increasing system reliability and uptime for mission-critical operations.

Applications:

The Yokogawa AAP135 is essential for industries that require reliable pulse signal processing:

Oil and Gas
Chemical Processing
Power Generation
Water and Wastewater Treatment

Detailed Specifications:

Specification	Details
Model Number	AAP135
Manufacturer	Yokogawa
Type	Pulse Input Module
Input Signal Types	Contact ON/OFF, Voltage pulse, Current pulse
Input Frequency Range	0 to 10 kHz
Channels	8 isolated input channels
Redundancy	Supports dual-redundant configurations
Withstanding Voltage	500 V AC for 1 minute between input and system, 500 V AC between channels
Minimum Pulse Width	40 µs
Contact Capacity (12 V DC)	15 V DC, 15 mA or higher
Contact Capacity (24 V DC)	30 V DC, 30 mA or higher
Voltage/Current Pulse Input (High Level)	3 to 24 V DC
Voltage/Current Pulse Input (Low Level)	-1 to 8 V DC
Swing Value	3 V or higher

Features:

High Accuracy: With precise pulse signal processing, the AAP135 ensures the accuracy of critical control data in industrial systems.
Versatile Signal Handling: The module supports a wide range of signal types, allowing it to be used in various applications and environments.
Compact Design: Its compact design ensures easy integration into Yokogawa’s DCS system, optimizing both space and functionality.