AAP135-S00/K4A00 Pulse Input 8 Ch 10 kHz | Yokogawa Isolated Module

AAP135-S00/K4A00 – Pulse Input Module

Brand: Yokogawa | Model: AAP135-S00/K4A00 | Type: Pulse Input Module

8 isolated channels. Accepts contact ON/OFF, voltage, and current pulses. Frequency up to 10 kHz. Dual-redundant capable. Ideal for high-speed counting and flow monitoring.

• Channels: 8 isolated inputs
• Frequency: 0 to 10 kHz
• Min pulse width: 40 µs
• Isolation: 500V AC (channel-to-channel and to system)
• Data update: 2 ms

Technical Specifications

• General
  • Model: AAP135-S00/K4A00
  • Brand: Yokogawa
  • Series: AAP135
  • Channels: 8 isolated
  • Weight: 0.3 kg
• Input Signals
  • 2-wire: Contact ON/OFF, voltage pulse, current pulse
  • 3-wire: Power-supply-type voltage pulse
  • Frequency range: 0 to 10 kHz
  • Min pulse width: 40 µs
• Signal Levels – Contact
  • Open: ≥100 kΩ, Close: ≤200 Ω
  • Contact capacity (12V): 15V @ 15mA
  • Contact capacity (24V): 30V @ 30mA
• Signal Levels – Voltage/Current
  • VH (high): 3 to 24V DC
  • VL (low): -1 to 8V DC
  • Swing (VH-VL): ≥3V
  • Source resistance: ≤1 kΩ
• Shunt & Pull-up
  • Shunt resistance: Selectable none, 200, 500, 1000 Ω
  • Pull-up: 68 kΩ (12V or 24V)
• Isolation & Protection
  • Withstanding voltage: 500V AC for 1 min (ch-to-ch, ch-to-system)
  • Filter: Configurable (chattering elimination)
  • Data update: 2 ms
• Power & Transmitter Supply
  • Transmitter supply: Select 12V or 24V DC
  • Limiter (12V): 40mA, Limiter (24V): 30mA
  • Current consumption: 300mA @ 5V, 400mA @ 24V
• Connection
  • Pressure clamp terminal, KS cable, MIL connector cable
  • Includes: KS cable interface adapter (ATK4A-00) via /K4A00 option

Expert Review

“High-speed and reliable.” 8 isolated channels with 10 kHz max frequency. 40 µs min pulse width captures fast signals. Configurable shunt and filter for noisy environments. Dual-redundant ready for critical systems.

Manager’s Insight

“Versatile and easy to deploy.” Accepts contact, voltage, and current pulses – one module fits many sensors. Transmitter power supply (12/24V) simplifies wiring. KS cable interface included. Backed by 12-month warranty.

Typical Applications

• Flow metering (turbine, magnetic)
• Speed monitoring (encoders, tachometers)
• Batch counting and totalization
• Position feedback (linear scales)
• Dual-redundant safety systems

Compatibility

• Fits Yokogawa CENTUM VP and ProSafe-RS systems
• Works with standard Yokogawa I/O racks
• Supports dual-redundant configuration (hot standby)
• Software: CENTUM VP engineering tools

Compare with Other Models

• AAP135-S00/K4A00 – 8 ch, 10 kHz, isolated, with KS adapter
• AAP135-S00 – same module without KS adapter
• AAP134 – 8 ch, 1 kHz, non-isolated (lower cost)
• AAP136 – 16 ch, 10 kHz, high-density

Certifications & Standards

• CE, UL, CSA, EAC
• Complies with IEC 61131-2
• RoHS compliant

Package & Warranty

• In box: AAP135-S00/K4A00 module, KS cable interface adapter (ATK4A-00), documentation.
• Warranty: 12 months.
• Shipping: 12-24h dispatch via FedEx, UPS, DHL (tracking provided).

Frequently Asked Questions

• • Can I connect NPN/PNP sensors directly?
  • Yes. The module accepts voltage pulses (3-24V). Use pull-up resistors if needed. Configure shunt accordingly.

• • What does the /K4A00 option include?
  • It includes the KS cable interface adapter (ATK4A-00) for easy connection to Yokogawa termination panels.

• • Is this module hot-swappable?
  • Yes. In dual-redundant systems, you can replace it without powering down the rack.

• • How do I set the shunt resistor?
  • Select via DIP switches or software (depends on rack). Choose 200, 500, or 1000 Ω – or none.

• • What is the maximum cable length?
  • Keep below 30m for reliable 10 kHz signals. Use shielded twisted-pair cables.

• Does it count both rising and falling edges?
• Yes. The module counts both edges. You can select counting mode in software.

Selection Guide

• Choose AAP135-S00/K4A00 if: you need 8 isolated pulse channels up to 10 kHz with KS adapter.
• For non-isolated or lower freq: consider AAP134 (1 kHz, non-isolated).
• For 16 channels: pick AAP136.
• Check your sensor type: contact, voltage, or current – this module handles all.
• Dual-redundant? This module supports it out of the box.

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