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Yokogawa AAP135-S50 S2 Pulse Input Module
The Yokogawa AAP135-S50 S2 is a 50W pulse input module featuring a wide 85-264V AC/DC input range. It delivers 91% efficiency and stable 24V DC power for DCS field instruments. This compact unit supports high-speed frequency processing and DIN rail installation.
Description
The Yokogawa AAP135-S50 S2 serves as a high-speed interface for pulse signal processing. This module captures frequency data from field instruments like flowmeters and tachometers. It accurately translates these pulse sequences into engineering units for the DCS. Its advanced circuitry supports various signal types, including dry contact and voltage pulses. Consequently, the unit provides critical data for precise rate and totalization calculations.
Industrial Power and Efficiency
This module integrates a robust 50W power supply section for localized energy management. It supports a flexible input range between 85 and 264V AC/DC. The hardware achieves a conversion efficiency rating of approximately 91%. This high efficiency minimizes heat buildup within the control cabinet. Therefore, the module maintains a longer service life in dense rack configurations. It consistently delivers a regulated 24V DC output to connected field devices.
Environmental Resilience and Protection
Engineers designed the AAP135-S50 S2 for reliable operation in demanding heavy industry sites. It functions effectively across a wide temperature spectrum from -20°C to +70°C. Furthermore, the unit features built-in protection against electrical surges and short circuits. This electrical hardening prevents damage during unpredictable field power fluctuations. The compact housing also provides superior resistance to mechanical vibrations found in industrial plants.
Technical Specifications
| Parameter | Details |
| Manufacturer | Yokogawa |
| Model Code | AAP135-S50 S2 |
| Module Category | Pulse Input / Power Supply |
| Power Rating | 50 Watts |
| Input Voltage | 85 to 264V AC/DC |
| Output Voltage | 24V DC (Stable) |
| Conversion Efficiency | 91% |
| Dimensions | 3.2 x 10.6 x 13.0 cm |
| Weight | 0.30 kg |
Installation and System Integration
The AAP135-S50 S2 allows for quick setup via standard DIN rail mounting. This mounting style simplifies maintenance and optimizes cabinet space usage. The module integrates perfectly with the Yokogawa CENTUM VP automation series. It meets several international safety standards for use in hazardous areas. Maintenance teams can easily swap units without complex rewiring during system upgrades. Always verify terminal torque settings to ensure long-term electrical connectivity.
Additional information
| Weight | 0.3 kg |
|---|---|
| Country of Origin | Japan |
| Dimension | 3.2 x 10.6 x 13 cm |
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