The Yokogawa ADM51-2 is a Contact Output Module designed for CENTUM VP/CS 3000 distributed control systems. It provides 16 transistor output channels with configurable pulse width, time‑proportional ON/OFF control, and per‑point insulation, ensuring reliable digital output for actuators, alarms, and field devices.
Hardware Specifications
Model: ADM51-2
Brand: Yokogawa
Product Type: Contact Output Module
No. of I/O Points: 16 points
Output Signal: Transistor contact
Contact Rating: Resistive/Inductive load: 30 V DC, ≤100 mA
Pulse Width: 0.1 to 7200 s (settable in pulse‑type mode)
Pulse Width Resolution: 20 ms
Current Consumption: ≤600 mA (5.0 V DC)
Functions:
Status output
Pulse type output
Pulse width output
Time proportional ON/OFF
ON/OFF status output function
One‑shot pulse width output function
Abnormal detection mode with configurable detection time/output mode
Signal Insulation: Each point individually insulated
Mounting Method: Installed in the I/O module nest
Signal Connection: M4 screw terminals; KS2/KS3 or KS9/KS10 cable supported
Maintenance Options:
Suffix ‑1: Reset action during on‑line maintenance
Suffix ‑2: Hold action during on‑line maintenance
Key Features
16 transistor outputs for flexible digital control.
Pulse width control adjustable from 0.1 to 7200 seconds.
Time proportional ON/OFF for precise process regulation.
Per‑point insulation ensures reliability and isolation.
Abnormal detection mode configurable for fault handling.
Frequently Asked Questions (FAQ)
Q: How many outputs does the ADM51-2 provide? A: It supports 16 transistor contact outputs.
Q: What is the maximum load rating per channel? A: Each channel supports up to 30 V DC, 100 mA.
Q: Can the module generate one‑shot pulses? A: Yes, it supports one‑shot pulse width output functions.
Q: What insulation method is used? A: Each output point is individually insulated.
Field Installation Guidelines
Install the ADM51-2 securely into the I/O module nest.
Connect signals to the nest terminal using M4 screws with proper torque.
Use KS2/KS3 or KS9/KS10 cables for wiring.
Maintain shield grounding at a single point to prevent ground loops.
Configure pulse width, time proportional control, and abnormal detection via system software before commissioning.
