Yokogawa NFAF135-S50 Frequency Input Module

Frequently Asked Questions (FAQ)

Q1: What types of input signals are supported by the NFAF135-S50?
A1: It supports contact ON/OFF and voltage pulse inputs.

Q2: Are the channels isolated from each other?
A2: Yes, all 8 channels are electrically isolated.

Q3: What is the supported input frequency range?
A3: The module supports frequencies from 0.1 Hz to 10 kHz.

Q4: What is the maximum voltage input supported?
A4: The module supports voltage pulse inputs, typically up to 24V DC, depending on the wiring method.

Q5: How is the module connected to field devices?
A5: Via MIL 40-pin connector or directly with the NFTI3S terminal block.

Q6: What applications is this module suitable for?
A6: Suitable for frequency detection, switch status monitoring, and rotational speed measurement in industrial automation.

Q7: Is hot swapping supported?
A7: Hot swapping is not recommended. Insert or remove the module only when power is off.

Q8: Is an external power supply required?
A8: No external power supply is required; power is provided by the controller.

Frequency Input Module NFAF135-S50 Yokogawa

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