YOKOGAWACENTUM MECHANICAL RELAY INPUT

32-Channel Mechanical Relay Contact Input Board

Yokogawa ARM15A-000 S1 32-Channel Mechanical Relay Contact Input Board

Name: Yokogawa ARM15A-000 S1 32-Channel Mechanical Relay Contact Input Board
Brand: YOKOGAWA
SKU: 2929211
Price: 1 USD
Availability: InStock

Hardware Overview

Yokogawa ARM15A-000 S1 is a 32-channel mechanical-relay contact input board for CENTUM field I/O. It accepts dry-contact states through M4 screw terminals and transfers the resulting input status to an ADV151 or ADV161 digital input module.

Within Yokogawa ARM15A-000 S1, the external 24 V DC field supply energizes the individual relay circuits while the internal 24 V DC path supports the board electronics. The two 16-channel groups retain separate field connections, making a group-level supply loss distinguishable from one failed contact.

For commissioning, Yokogawa ARM15A-000 S1 is paired with the documented ATD5A arrangement and AKB331 or AKB337 cable path. Contact resistance, field polarity and group fuses are checked before the controller input image is accepted.

Official technical figure for ARM15A-000 S1

Engineering Data

Technical item
Brand	Yokogawa
Model	ARM15A-000 S1
Product Name	32-channel mechanical relay contact input board
Country	Japan
Input Channels	32
Terminal	M4 screw
Input Contact	Dry contact
Contact ON Resistance	150 Ω or less
Contact OFF Resistance	200 kΩ or greater
Supported I/O Module	ADV151 with ATD5A or ADV161
Connection Cable	AKB331 or AKB337
Field Contact Supply	24 V DC, 13 mA per point
Internal 24 V Consumption	0.32 A maximum
Channel Groups	Two groups of 16
Operating Temperature	0 to 50 °C
Operating Humidity	10 to 90% RH, non-condensing
Dimensions	482.6 × 132.5 mm, 3U
Weight	Approx. 2.2 kg

Product Functions

Yokogawa ARM15A-000 S1 converts 32 independent dry-contact conditions into relay-isolated states that the associated digital input module can read. Its functional value is the repeatable conversion of field contact closure into a grouped, relay-isolated indication without changing the dry-contact circuit into an analog measurement.

Contact sensing

Each field contact controls one relay circuit, keeping the physical switch state separate from the controller input electronics. Trace one channel from the M4 terminal through its relay and cable position to the digital input point; this proves the function without relying only on an LED.

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Grouped distribution

Two 16-channel sections distribute field power and make common supply faults visible as a repeatable group pattern. Because sixteen inputs share a field-power group, the function test should include one point from each group and a check of the associated group supply.

›

Controller handoff

ADV151 or ADV161 receives the converted states through the documented ATD5A and AKB cable path. The output of the relay interface is the controller-visible contact state, so acceptance requires agreement between the physical contact, relay action and input image.

Diagnostics and Protection

Yokogawa ARM15A-000 S1

Yokogawa ARM15A-000 S1 troubleshooting follows the signal from the dry contact through the field supply, fuse and relay before the controller image is questioned. Protection and troubleshooting should isolate the fault domain before components are replaced, distinguishing field-contact resistance, group power, fuse condition and controller input.

Separate contact from supply

Measure contact resistance and field voltage at the same channel so an open switch is not confused with a missing feeder. A group-wide loss directs the first check to the 24 V source, fuse and common wiring; an isolated point directs it to that contact and terminal.

Compare group behavior

If many points fail together, check the common 24 V path and group fuse before replacing individual relays. Measure the contact under the real circuit condition because contamination or cable resistance can prevent the documented ON threshold even when continuity appears acceptable.

Verify the handoff

When relay operation is visible but controller data is absent, inspect the ATD5A assignment and AKB331/337 cable seating. After correction, repeat the test at the terminal and in the controller database, then record the affected group so the failure pattern remains traceable.

Buyer Questions

01Why do sixteen Yokogawa ARM15A-000 S1 inputs fail together?

On Yokogawa ARM15A-000 S1, a 16-channel pattern points first to the affected group supply, fuse or common wiring rather than 16 independent contacts.

02What contact condition counts as ON for Yokogawa ARM15A-000 S1?

Yokogawa ARM15A-000 S1 treats 150 Ω or less as the documented ON condition; high field resistance should be corrected before acceptance.

03Which modules connect to Yokogawa ARM15A-000 S1?

Yokogawa ARM15A-000 S1 is used with ADV151 plus ATD5A or with ADV161 through the documented AKB331/AKB337 path.

04Can a powered contact be connected directly to Yokogawa ARM15A-000 S1?

Yokogawa ARM15A-000 S1 is specified for dry-contact inputs; an externally powered signal requires the correct interface design rather than direct substitution.

05How should Yokogawa ARM15A-000 S1 be tested after wiring?

Operate one Yokogawa ARM15A-000 S1 contact in each 16-channel group, confirm relay action and then verify the matching controller input before expanding the test.

06Which Yokogawa ARM15A-000 S1 details prevent channel mix-ups during replacement?

Record the Yokogawa ARM15A-000 S1 terminal numbers, group supply, cable identifier and controller channel map so the replacement preserves the same signal path.

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Product Name	Yokogawa ARM15A-000 S1 32-Channel Mechanical Relay Contact Input Board
Item NO.	2929211
Weight	0.1 kg = 0.2205 lb = 3.5274 oz
Category	YOKOGAWA
Brand	YOKOGAWA
Creation Time	2026-11-02

Yokogawa ARM15A-000 S1 32-Channel Mechanical Relay Contact Input Board Item NO.: 2929211

Yokogawa ARM15A-000 S1 32-Channel Mechanical Relay Contact Input Board

Hardware Overview

Engineering Data

Product Functions

Contact sensing

Grouped distribution

Controller handoff

Diagnostics and Protection

Diagnostics and Protection

Separate contact from supply

Compare group behavior

Verify the handoff

Buyer Questions

Our Services

Moore Automation

Alternative Models

Get in Touch

Moore Automation

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