ARM15A-000 YOKOGAWA Relay Board | New & Original Stock

32-Channel Dry Contact Relay Board | YOKOGAWA ARM15A-000

32-Channel Dry Contact Relay Board | YOKOGAWA ARM15A-000

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YOKOGAWA ARM15A-000 CENTUM VP Relay Board The YOKOGAWA ARM15A-000 serves as the primary ARM15A Relay Board utilized to execute mechanical...

رمز المنتج: ARM15A-000

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

وصف التقييمات

YOKOGAWA ARM15A-000 CENTUM VP Relay Board

The YOKOGAWA ARM15A-000 serves as the primary ARM15A Relay Board utilized to execute mechanical relay contact input routing across CENTUM VP platforms. The rack-mountable device provides termination and conditioning for up to 32 dry contact inputs via standard M4 screw terminals. Operating in single or dual-redundant configurations, the assembly converts raw physical switch closures into isolated signals compatible with the primary Field Control Unit (FCU), decoupling internal processor logic from external plant floor voltage spikes and thermal surges.

Suffix Breakdown & Model Matrix

Suffix Code	Description
ARM15A	Base Model: 32 Dry Contact Inputs (M4 Terminals)
-0	Fixed Configuration Digit (Always 0)
0	Mounting Type: 19-inch Rack Mountable Layout (3U Height)
0	Hardware Variant: Basic Type Execution

Hardware Specifications

Parameter	Specification
Model	ARM15A-000
Brand	YOKOGAWA
Origin	China
Weight	2.2 kg net / 3.5 kg shipping gross
Dimensions	482.6 x 132.5 mm (Standard 3U form factor)
Operating Temp	-20 to +60 deg C
Power Consumption	Passive field terminal interface / Low-voltage bus logic
Configuration	Single or Dual-redundant contact tracking
Input Capacity	32 dry contact inputs
Connection Type	Heavy-duty M4 barrier terminal screws
Chassis Standard	19-inch industrial rack enclosure mount

Process Control and DCS Instrumentation Technical Characteristics

The instrumentation hardware achieves strict channel-to-channel isolation by integrating discrete mechanical physical isolation barriers directly between the adjacent field terminal tracks. When field instruments switch external lines, the onboard relay matrix acts as a buffer layer to eliminate ground loops and reject electromagnetic cross-talk.

The dual-redundant structural design enables the board to accept parallel bus connections from independent Node Interface Units. This infrastructure allows the host CENTUM VP software to maintain uninterrupted tracking of safety switches and interlocks if one active control network branch suffers a packet drop or communication failure.

Frequently Asked Questions

Q: Does the ARM15A-000 board support on-line hot-swap replacement under live plant conditions?

A: Technicians can isolate and replace individual control cable sets on a redundant node path, but structural replacement of the main passive chassis requires complete field circuit isolation to avoid accidental trips on adjacent dry contact inputs.

Q: How do the M4 terminals affect wire gauge selection during field termination?

A: The M4 barrier strip design accepts standard ring or spade lugs crimped to heavy-gauge industrial wiring, ensuring high physical pull-out resistance and maintaining minimal contact resistance across all 32 channels.

Q: What operational symptoms indicate a failure within the relay board input tracking loop?

A: A broken contact line or short-circuit condition triggers a signal state mismatch at the host FCU, causing the DCS software to generate a system alarm block and activate the respective node group error register.

Field Installation Guidelines

Chassis Alignment: Slide the 3U framework directly into the 19-inch cabinet rails. Secure all four front panel mounting screws tightly to suppress local structural vibrations and maintain ground continuity with the rack frame.
Terminal Torque Limits: Apply standard torque specifications when tightening the M4 terminal screws. Over-tightening strips the threads, while loose connections lead to intermittent contact open-fault readings under thermal stress.
Redundancy Routing Paths: Route the primary and secondary interface cables through separate left and right wire trays inside the enclosure to protect the dual-redundant signaling paths against concurrent mechanical damage.
Conduit Moisture Control: Seal all incoming field conduits properly to prevent moisture or corrosive industrial gases from collecting on the open relay termination traces, ensuring stable insulation resistance across adjacent channels.

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