Yokogawa|AAP135-S50|Pulse Input Module

Yokogawa AAP135-S50 Pulse Input Module

Description
Yokogawa AAP135-S50 is an 8-channel isolated pulse input module that receives contact ON/OFF, voltage pulse, and current pulse signals with field-to-system and channel-to-channel isolation.

Features
Supports dual-redundant configuration for high availability. Provides galvanic isolation up to 500 V AC between channels and system. Accepts multiple input types including dry contacts, voltage pulses, and current pulses. Offers selectable shunt and pull-up resistors with transmitter power supply capability.

Technical Specifications

• Model: AAP135-S50
• Module Type: Pulse Input Module
• Number of Channels: 8, fully isolated
• Input Signal Types:
  • 2-wire: Contact ON/OFF, voltage pulse, current pulse
  • 3-wire: Power-supply-type voltage pulse
• Input Frequency Range: 0 to 10 kHz
• Minimum Input Pulse Width: 40 µs
• Isolation Withstanding Voltage:
  • Field to System: 500 V AC for 1 minute
  • Channel to Channel: 500 V AC for 1 minute
• Contact Input Levels:
  • Open: ≥100 kΩ, Close: ≤200 Ω
• Voltage Pulse Input Levels:
  • High (VH): 3 to 24 V DC
  • Low (VL): -1 to 8 V DC
  • Swing (VH-VL): ≥3 V
• Signal Source Resistance: ≤1 kΩ
• Shunt Resistor Options: None, 200 Ω, 500 Ω, 1000 Ω
• Pull-up Resistor: 68 kΩ (selectable 12 V or 24 V DC)
• Filtering: Configurable filter to eliminate chattering
• Transmitter Power Supply: Selectable 12 V DC or 24 V DC
  • Current Limit: 40 mA @ 12 V DC, 30 mA @ 24 V DC
• Data Update Period: 2 ms
• Current Consumption: 300 mA @ 5 V DC, 400 mA @ 24 V DC
• Weight: 0.3 kg