ARM15A-000 S1 Yokogawa Relay Input Board

ARM15A-000 S1 Yokogawa CENTUM VP 32-Channel Relay Board

ARM15A-000 S1 Yokogawa CENTUM VP 32-Channel Relay Board

Availability: 20 left in stock

Yokogawa ARM15A-000 S1 CENTUM VP Relay Board Configured for dry contact signal isolation and switching in CENTUM VP systems, the...

SKU: ARM15A-000 S1

Manufacturer: Yokogawa
Product No.: ARM15A-000 S1
Product Type: Digital Input Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 2200g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa ARM15A-000 S1 CENTUM VP Relay Board

Configured for dry contact signal isolation and switching in CENTUM VP systems, the Yokogawa ARM15A-000 S1 (ARM15A-000 Relay Board) provides direct physical/electrical execution. The hardware converts field-side dry contact inputs into isolated digital logic levels across 32 channels, preventing voltage transients and common-mode electrical noise from entering DCS processing modules.

Hardware Specifications

Parameter	Specification
Model	ARM15A-000 S1
Brand	Yokogawa
Origin	Japan
Weight	2.2 kg
Dimensions	482.6 mm x 132.5 mm x 138 mm (19-inch rack, 3U height)
Operating Temp	0 deg C to +50 deg C
Power Consumption	24 VDC, approx. 0.32 A (Internal power supply)
Channel Capacity	32 dry contact inputs
Input Detection Threshold	ON LE 150 Ohm, OFF GE 200 kOhm
Isolation Type	Mechanical relays (Galvanic isolation)
Withstand Voltage	1.5 kV between field terminals and chassis
Field Power Supply	Dual 24 VDC redundant inputs, max 0.3 A per line
Compatible Modules	ADV151 (32-point DI), ADV161 (64-point DI)
Signal Cables	AKB331, AKB337 cable series

4-20 mA HART Loop Protocol & Galvanic Signal Isolation

The ARM15A-000 S1 relay board incorporates channel-to-channel isolation and high-level galvanic field-to-system barriers to prevent ground loops across field loop wiring. Designed to operate alongside 4-20 mA HART loop protocol analog cards and discrete I/O modules, the unit uses mechanical relays to clean dry contact signals before passing them to ADV151 and ADV161 digital input modules via AKB331 interface cables. Dual 24 VDC power feed terminals provide internal line redundancy to maintain uninterrupted channel switching during a power source failure.

Frequently Asked Questions

Q: What are the input resistance thresholds for channel state detection on the ARM15A-000 S1?

A: The board detects an ON state when field contact resistance drops to 150 Ohm or lower, and registers an OFF state when resistance equals or exceeds 200 kOhm.

Q: How does the ARM15A-000 S1 connect to CENTUM VP digital input modules?

A: The board interfaces with ADV151 (32-point) or ADV161 (64-point) digital input cards using AKB331 or AKB337 system cables connected to its rear terminal structures.

Field Installation Guidelines

Mount the ARM15A-000 S1 board directly into a standard 19-inch 3U rack or marshalling cabinet frame. Secure all panel mounting bolts to maintain chassis grounding integrity to the main enclosure earth bar.

Wire dry contact field inputs using M4 terminal connections. Torque terminal screws to standard electrical specifications to prevent loose contact faults under cabinet vibration. Connect dual independent 24 VDC power feeds to the designated redundant power input terminals to preserve power supply redundancy. Maintain a minimum separation distance between high-voltage power cables and low-voltage signal cables inside wire ducts to prevent electromagnetic interference.

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