Overview

The YOKOGAWA NFAF135-S50 Frequency Input Module is designed for industrial automation applications that require precise frequency measurement. It offers isolated channels for high-noise environments and a wide frequency measurement range, making it suitable for various process control tasks.

Technical Specifications

Frequency Input

• Frequency Range: 0.1 Hz to 10 kHz
• Number of Channels: 8 channels
• Isolation: Isolated channels

Withstanding Voltage

• Between input and system: 500 V AC
• Between channels: 500 V AC

Transmitter Power Supply

• 24 V (30 mA) / 12 V (40 mA) Selectable

Maximum Current Consumption

• 300 mA (5 V DC)
• 400 mA (24 V DC)

Weight

• 0.3 kg

Minimum Input Pulse Width

• 40 μs

Data Refresh Cycle

• 10 ms

Input Type

• Dry contact pulse (Open collector contact)
• Dry contact pulse (Relay contact)
• Voltage pulse