NFAP135-S50

Product Overview

NFAP135-S50 is a Yokogawa pulse input module with 8 isolated channels, supporting contact, voltage, and current pulse signals up to 10 kHz.

Identification

• Product ID: NFAP135-S50

• Model: NFAP135 Pulse Input Module

• Type: Pulse Input Module

• Suffix codes: –S Standard type, 5 No explosion protection, 0 Basic type

Channel & Signal Data

• Number of input channels: 8 isolated

• Input signal types:

  • 2-wire: Contact ON/OFF, voltage pulse, current pulse (transmitter power supply possible)

  • 3-wire: Power-supply-type voltage pulse

• Input frequency: 0–10 kHz

• Minimum input pulse width: 40 µs

• Input signal level:

  • Contact input: Open ≥100 kΩ, Close ≤200 Ω

  • Voltage/current pulse: VH–VL ≥3 V, VH 3–24 V, VL –1 to 8 V

  • Signal source resistance ≤1 kΩ

• Shunt resistance: Select OFF/200/500/1000 Ω (open when power OFF)

• Pull-up resistance: 68 kΩ (12 V DC or 24 V DC)

Electrical Data

• Withstanding voltage: 500 V AC for 1 min (between input and system, between channels)

• Contact capacity:

  • 12 V DC supply: ≥15 V DC, ≥15 mA

  • 24 V DC supply: ≥30 V DC, ≥30 mA

Performance

• Data refresh cycle: 2 ms

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