ADM12C S3 Yokogawa Contact Input Module

Yokogawa ADM12C S3 CENTUM CS 3000 Contact Input Module

Yokogawa ADM12C S3 CENTUM CS 3000 Contact Input Module

Availability: 20 left in stock

Yokogawa ADM12C S3 Contact Input Modules The Yokogawa ADM12C S3, also cataloged as the ADM12C Contact Input Module, operates as...

SKU: ADM12C S3

Manufacturer: Yokogawa
Product No.: ADM12C S3
Product Type: Contact Input Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 350g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa ADM12C S3 Contact Input Modules

The Yokogawa ADM12C S3, also cataloged as the ADM12C Contact Input Module, operates as a dedicated hardware component for contact signal acquisition within CENTUM CS 3000 and ProSafe-RS control platforms. The unit captures status signals across 32 input channels from external field devices, including limit switches, pushbuttons, and relay contacts. Featuring 1500 Vrms dielectric isolation, configurable input filter times, and style S3 environmental build parameters, the module executes discrete logic sensing for real-time monitoring.

Hardware Specifications

Parameter	Specification
Model	ADM12C S3
Brand	Yokogawa
Origin	Japan
Weight	0.35 - 0.70 kg
Dimensions	125 mm x 100 mm x 150 mm
Operating Temp	-10 to 60 deg C (S3 tolerance)
Power Consumption	1.5 W typical (200-600 mA @ 5 VDC backplane draw)
Input Channels	32 channels
Signal Types	Dry contact or 24 VDC voltage (nominal 24 VDC)
Threshold Voltages	ON-State: >= 15 VDC; OFF-State: <= 5 VDC
Minimum Pulse Width	>= 40 ms
Isolation Voltage	1500 Vrms channel-to-backplane for 1 minute

Channel Isolation and DCS Signal Integrity

Yokogawa process automation architectures require galvanic isolation to protect central controller backplanes from field-side voltage spikes and noise coupling. The ADM12C S3 provides 1500 Vrms isolation between field terminal points and internal logic circuits. Operating alongside 4-20 mA HART analog loops, this isolation barrier suppresses common-mode interference, while selectable digital filter times (1 ms, 5 ms, 10 ms, 20 ms) eliminate contact bounce and stabilize input signal state evaluation.

Frequently Asked Questions

Q: What input pulse duration is required for the ADM12C S3 to register a valid contact state change? A: Field devices must maintain a signal pulse width of at least 40 ms at a maximum frequency of 10 Hz to ensure accurate detection.

Q: How do status LEDs assist during hardware troubleshooting in the field? A: The front panel includes 1 green LED for module power verification and 32 individual red LEDs that display real-time ON/OFF state activity for each input channel.

Q: Can operators configure input filter delays to accommodate noisy field switch contacts? A: Yes, operators can select software filter times of 1 ms, 5 ms, 10 ms, or 20 ms, which yield a total input delay equivalent to the selected filter time plus 1 ms.

Field Installation Guidelines

Turn off cabinet system rack power or confirm redundant I/O rack execution prior to installing or removing the module from its slot.
Align module base connectors straight with backplane slot tracks to prevent pin bending during insertion.
Wire discrete field contact points to the removable 20-pin terminal blocks using conductors sized between 0.2 mm2 and 2.5 mm2.
Route low-voltage signal wiring through dedicated wire ducts physically separated from high-voltage AC conductors to reduce inductive noise.
Connect cable shield drain wires directly to the main cabinet ground bar using short, low-impedance ground straps.

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