STA4D-00 YOKOGAWA Dual-Redundant Terminal Block

Dual-Redundant Terminal Block Module YOKOGAWA STA4D-00

Dual-Redundant Terminal Block Module YOKOGAWA STA4D-00

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YOKOGAWA STA4D-00 CENTUM Series Terminal Block Configured for structured wiring and termination points in CENTUM VP and ProSafe-RS systems, the...

رمز المنتج: STA4D-00

Manufacturer: Yokogawa
Product No.: STA4D-00
Product Type: Terminal Blocks
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 400g
Shipping port: Xiamen
Warranty: 12 months

وصف التقييمات

YOKOGAWA STA4D-00 CENTUM Series Terminal Block

Configured for structured wiring and termination points in CENTUM VP and ProSafe-RS systems, the YOKOGAWA STA4D-00 (STA4D Terminal Block) provides direct physical/electrical execution. The hardware establishes secure junction routing that channels field sensor signals directly into downstream input/output processing arrays. Featuring a dual-redundant architectural blueprint, the module interfaces field devices with parallel internal circuitry to allow continuous loop communication across the process network layout without data interruption.

Hardware Specifications

Parameter	Specification
Model	STA4D-00
Brand	YOKOGAWA
Origin	Japan
Weight	0.4 kg
Dimensions	65.6 mm x 72 mm x 114 mm
Operating Temp	-20 to +70 deg C
Power Consumption	Not Specified
Product Type	Terminal Blocks
Channel Capacity	16 channels
Connection Type	Pressure-clamp terminal
Rated Voltage	24 VDC
Rated Current	10 A
Compliance	EN 61000-6-2 EMC standards

Process Interface Loop Protocols

The hardware terminal paths support 4-20 mA HART loop protocol physical topologies, maintaining transparent data flow between field assets and the host controller interface. Integrated channel-to-channel isolation networks isolate distinct loops to contain incoming transient surges and neutralize localized noise factors. For temperature monitoring setups using direct thermocouple sensors, the pressure-clamp assembly relies on internal passive cold junction compensation (CJC) circuits to track environment-induced thermal deviations at the termination barrier, ensuring accurate voltage scaling values without extra external baseline hardware.

Frequently Asked Questions

Q: How is physical line redundancy maintained during a single-side host cable failure?

A: The board design links each field termination point to two parallel, isolated system cable plugs on the rear interface. If one connection cable breaks or loses contact, the redundant path maintains current loop continuity, keeping the upstream controller updated with real-time process values.

Q: Can this terminal array accept mixed solid and stranded wiring configurations directly?

A: Yes, the spring-loaded pressure-clamp frames hold either solid or stranded bare copper wires firmly. To secure a gas-tight electrical bond, verify that the stripped conductor ends meet standard termination depth specifications before snapping the clamps shut.

Q: Under what network conditions should the optional EMC surge absorber version be implemented?

A: The surge protection module variant must be utilized in high-exposure electrical zones or environments prone to switching surges. This option incorporates suppression components across the 24 VDC lines to arrest spikes before they cross the internal channel isolation layout.

Field Installation Guidelines

DIN Rail Substrate Grounding: Clip the assembly onto a standard 35 mm DIN rail, verifying that the built-in grounding clip cuts through surface oxidation to link directly with the unpainted metal rail frame.
Instrumentation Shield Matrix: Connect all incoming twisted-pair shield drains straight to the dedicated copper grounding bar inside the enclosure rack. Do not run ground shields into the active signal clamp positions.
Separation of Signal Conductors: Neatly route low-voltage analog field wiring through dedicated isolated plastic ducts. Maintain a minimum space separation of 200 mm from adjacent high-voltage AC distribution circuits or motor drive lines.
Termination Quality Inspection: Check all wire entries after securing the pressure clamps to confirm no loose copper strands project outside the plastic insulation frame, preventing channel-to-channel short circuits.

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