Product Description

The NFAP135-S50/13S00 is a high-precision pulse input module designed for the Yokogawa STARDOM FCN-100 autonomous controller series. This module captures high-speed frequency signals from field instruments such as flow meters, tachometers, and encoders.

The NFAP135-S50/13S00 (Model: NFAP135-S50/13S00) provides 8 independent channels, each capable of high-frequency counting and frequency measurement, ensuring rapid process oscillations are recorded with absolute accuracy for both control and totalization purposes.

This variant features a robust hardware revision denoted by the S50/13S00 suffix, which includes specialized conformal coating or connector specifications for enhanced durability in industrial environments. The module supports various input types, including dry contacts and voltage pulses, and provides internal galvanic isolation to shield the STARDOM CPU from electrical noise and field-side transients.

Technical Specifications

Application Scenarios

The NFAP135-S50/13S00 is primarily utilized in the oil and gas, water management, and power sectors. It is ideal for turbine flow meter monitoring, motor speed sensing, and any application where the rate of change is too fast for standard digital input modules to track accurately.

By offloading pulse totalization to the module hardware, it ensures the main controller remains efficient for sequence and logic execution.

FAQ

Can the NFAP135-S50/13S00 handle 24V DC pulse signals?
Yes, the module is designed to accept standard 24V DC pulses common in industrial encoders and flow transmitters, provided the appropriate wiring configuration is used.

What is the benefit of the "13S00" suffix on this model?
This suffix typically indicates a specific hardware revision or "G3" environmental coating, which provides superior protection against corrosive gases and high-humidity environments.