Overview
Configured for field signal termination in Yokogawa CENTUM VP FIO systems, the Yokogawa ATA4S-00 S2 (ATA4S-00 Pressure Clamp Terminal Block) provides direct physical connection between field wiring and I/O modules.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | ATA4S-00 S2 |
| Brand | Yokogawa |
| Origin | Japan |
| Product Type | Pressure Clamp Terminal Block |
| Application | CENTUM VP FIO I/O module field wiring interface |
| Connection Method | Pressure clamp terminal connection |
| Signal Interface | Analog and digital field signal termination |
| Rated Voltage | 24 VDC |
| Rated Current | Up to 5 A – 10 A depending on configuration |
| Wire Size Range | 0.2 to 2.5 mm2 |
| Mounting Type | Panel mounting / system installation |
| Weight | 0.18 kg |
| Dimensions | Approx. 3.2 x 6 x 11.3 cm (shipping size) |
| Operating Temp | -20 deg C to +70 deg C |
| Storage Temp | -25 deg C to +85 deg C |
| Power Consumption | Passive terminal component, no external power consumption |
Yokogawa DCS Signal Interface Characteristics
The ATA4S-00 S2 operates as a passive wiring interface for Yokogawa distributed control system installations. It supports organized field cable termination and maintains signal routing between field devices and compatible I/O modules.
For Yokogawa process control architectures, the terminal block installation supports common instrumentation interfaces, including 4-20 mA HART loop protocol connections and FOUNDATION Fieldbus / Profibus PA field wiring environments when used with corresponding I/O hardware.
The pressure clamp mechanism applies controlled mechanical force to conductor points. Therefore, it reduces connection loosening caused by operational vibration and maintains stable electrical contact during continuous plant operation.
Frequently Asked Questions
Q: Does the ATA4S-00 S2 require an external power supply?
A: No. The ATA4S-00 S2 is a passive pressure clamp terminal block and does not consume external electrical power.
Q: Which Yokogawa systems support the ATA4S-00 S2?
A: The ATA4S-00 S2 is designed for Yokogawa CENTUM VP FIO I/O module applications and related field wiring configurations.
Q: What installation method should be used for field wiring?
A: Install field conductors according to Yokogawa wiring specifications. Maintain correct terminal assignment, cable separation, and shielding practices for instrument signal integrity.
Field Installation Guidelines
- Verify the terminal block model before installation and confirm compatibility with the selected Yokogawa I/O module.
- Install wiring according to the assigned channel and terminal diagram.
- Use appropriate cable routing practices to separate signal cables from high-voltage power conductors.
- Connect cable shields according to the plant grounding standard to reduce electromagnetic interference.
- Check conductor insertion depth and clamp engagement before system commissioning.
- Inspect terminal connections during maintenance activities to confirm mechanical stability.
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