Product Core Brief

• Model: KS2-5*A
• Brand: YOKOGAWA
• Series: KS2 Signal Cable
• Core Function: 5-meter signal cable used to interconnect Yokogawa controllers, instrument modules, or related control units.
• Product Type: Instrument Signal Cable
• Key Specs: 5 m cable length | 40-pin to 40-pin connection | KS2 series signal cable
• Condition: New Original / New Surplus

Key Technical Specifications

• Product type: Signal cable for Yokogawa instruments
• Model code: *A
• Cable length: 5 m
• Connector type: 40-pin to 40-pin
• Series compatibility: Yokogawa KS2-series signal cable family
• Typical applications: Controller interconnection, instrument signal extension, panel-to-panel signal wiring
• Operating environment: Industrial instrument wiring; confirm exact temperature range against the cable datasheet
• Handling: Protect connectors from bending, contamination, and moisture

Note: The KS2 family uses the same 40-pin connector format as the KS1 series. The suffix *A indicates a specific style or specification variant. Exact electrical ratings, pin assignment, and compatible instrument models should be confirmed against the official Yokogawa cable or controller manual.

 

Product Introduction

The KS2-5*A is a 5-meter signal cable from the Yokogawa KS2 series. It features a 40-pin to 40-pin connector configuration and is used for interconnecting Yokogawa controllers, instrument modules, or related control equipment.

For maintenance teams, this cable is useful when replacing damaged interconnect cables or restoring signal links between controller modules. The 5-meter length makes it suitable for panel-internal wiring or short-distance connections between adjacent racks.

QA & Inspection SOP

Each cable is inspected before release:

1. Label and length verification: Confirm the cable is marked KS2-5*A and matches the 5-meter specification.
2. Connector inspection: Check both 40-pin connectors for bent pins, corrosion, or loose shells.
3. Cable jacket check: Inspect the outer sheath for cuts, crushing, kinks, or abrasion.
4. Continuity check: Verify pin-to-pin continuity to rule out open circuits or cross-wiring.
5. Insulation check: Check for short circuits between adjacent pins and between pins and shield or outer jacket.
6. Packaging: Coil and pack to avoid connector stress, with end caps if available.

Full system validation requires connection to the intended Yokogawa controller or instrument. If a loop test is required, confirm the instrument models and cable routing before dispatch.

Installation Pitfalls & Guide

❗ Confirm the connector type before installation. The KS2-5*A is a 40-pin to 40-pin cable. It may not fit instruments that use different connector formats.

❗ Do not assume cross-compatibility between KS1, KS2, and KS4. While KS1 and KS2 both use 40-pin connectors, KS4 uses 20-pin connectors. Always match the series to the instrument requirement.

❗ Avoid sharp bends and tension on the connectors. Support the cable properly in the panel or cable tray to prevent stress on the pins.

❗ Route away from high-power cables. Keep signal cables separated from motor leads, VFD outputs, and high-current wiring to reduce noise interference.

Installation steps:

1. Pre-install: Identify the source and destination instruments, confirm model compatibility, and power down if required.
2. Disconnect: Remove the existing cable and label both ends if replacing in a live panel.
3. Install: Connect the KS2-5*A firmly, ensuring the locking mechanism is engaged on both ends.
4. Verify: Restore power, check communication status, and confirm normal controller or instrument operation.

 

Technical FAQ

What is the difference between KS1 and KS2 cables?
Both KS1 and KS2 are 40-pin to 40-pin signal cables from Yokogawa. The exact difference between the two series may relate to cable construction, shielding, or compatible instrument types. Always confirm against the official Yokogawa documentation for your specific application.

*What does the A suffix mean?
The *A suffix indicates a specific style or specification variant of the KS2 cable. Yokogawa cables may also carry other suffixes such as *B or /NL, which can indicate different construction, certification, or regional specification.

Can A replace KS1-05B?
Both are 5-meter 40-pin cables, but cross-series substitution should be confirmed against the instrument manual. If the original cable is KS1, it is safest to match the same series unless Yokogawa documentation confirms compatibility.

What should I check if communication fails after replacement?
Verify that both connectors are fully seated, the pin configuration matches, the cable length is correct, and the instrument settings are unchanged. If the issue persists, test with a known-good cable to isolate the fault.

Is this cable still available?
KS-series signal cables are commonly available through industrial spare channels, but availability depends on length code and suffix. Confirm stock condition and warranty terms before ordering.