Yokogawa ATA4S-00 S2 Pressure Clamp Terminal Block

Product Description

The Yokogawa ATA4S-00 S2, based on the ATA4S-00 model designation, is a pressure clamp terminal block intended for field wiring termination in industrial control systems. It provides a physical connection interface between field conductors and compatible I/O hardware. The supplied specifications identify analog input and output applications, but the exact supported I/O configurations require confirmation against the applicable Yokogawa system documentation.

Hardware Specifications

Field Wiring and DCS Interface Characteristics

The pressure clamp connection method terminates field conductors without conventional screw tightening at each connection point. Correct conductor preparation and terminal compatibility are necessary to maintain electrical contact.

For Yokogawa DCS installations, verify the terminal block's compatibility with the specific FIO module, cable assembly, and system configuration before connecting field signals. Do not assume that every analog input or output module supports this terminal block.

The stated 24 VDC rating and insulation test values should be checked against the manufacturer's documentation for the exact hardware revision. The terminal block's passive termination function does not establish support for HART, FOUNDATION Fieldbus, or Profibus PA protocols.

Frequently Asked Questions

Q: Does the ATA4S-00 S2 support both analog input and analog output signals?

A: The supplied description lists both signal types. Confirm the supported I/O module combinations and terminal assignments in the applicable Yokogawa hardware documentation.

Q: Can the ATA4S-00 S2 be connected directly to any CENTUM VP FIO module?

A: No universal compatibility can be established from the supplied data. Verify the terminal block part number, associated cable, and I/O module combination before installation.

Q: What electrical parameters should be checked before commissioning?

A: Verify the rated voltage, insulation requirements, conductor size, terminal assignments, and field signal polarity. Confirm grounding and shielding arrangements against the system installation manual.

Field Installation Guidelines

1. Verify hardware compatibility. Confirm the ATA4S-00 S2 designation and the matching Yokogawa I/O module and cable assembly.
2. Isolate the circuit. De-energize the relevant equipment and follow the site's lockout and electrical safety procedures.
3. Prepare conductors. Use the conductor type and stripping length specified by the manufacturer. Avoid damaged strands and exposed conductive material outside the terminal.
4. Check signal assignments. Match each field conductor to the documented terminal number and signal polarity.
5. Route field wiring correctly. Separate low-level analog signal cables from high-noise power and switching conductors where practical.
6. Apply shielding and grounding. Follow the system grounding plan and the applicable instrument cable specifications. Avoid unintended ground loops.
7. Inspect before energizing. Check conductor retention, wiring continuity, polarity, and insulation condition before restoring power.
8. Commission the signal path. Confirm the field signal at the corresponding I/O channel and verify the expected engineering response.

Other Attributes

• Country of Origin: Japan/Singapore
• Lead Time: In Stock, 2 Working Days

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