YOKOGAWA NFDV151-P10 CENTUM VP Digital Input Module
Configured for discrete signal acquisition in CENTUM VP control systems, the YOKOGAWA NFDV151-P10 (NFDV151 Digital Input Module) provides direct physical/electrical execution. This 16-channel hardware unit interfaces with dry contacts and 24 VDC voltage field switches, converting discrete process binary states into system data registers across Vnet/IP networks.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | NFDV151-P10 |
| Brand | YOKOGAWA |
| Origin | Japan |
| Weight | 0.3 kg |
| Dimensions | Standard CENTUM VP module slot size |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | 3 W max |
| Channel Capacity | 16 isolated channels |
| Input Signal Type | Voltage-free contact (dry contact) or DC voltage |
| Rated Input Voltage | 24 VDC |
| System Platform | CENTUM VP / Vnet/IP |
Process Control & Fieldbus Interface Features
The module relies on galvanic isolation between individual channels and system logic circuits to shield backplane processors from field electrical surges. High-speed sampling routines continuously refresh channel status registers, providing reliable data capture for time-critical interlocking routines. Integration with 4-20 mA HART loop protocol management infrastructure and FOUNDATION Fieldbus network segments allows unified diagnostic monitoring across central engineering workstations.
Frequently Asked Questions
Q: Does the NFDV151-P10 support online replacement while the system is powered?
A: Yes. Operators can remove and insert the module under backplane power within a powered Yokogawa node unit without disrupting Vnet/IP communication or adjacent field I/O cards.
Q: Can channels on the NFDV151-P10 accept external 24 VDC wet contact signals?
A: Yes. The module supports both voltage-free (dry) contacts and external 24 VDC voltage signals across its input channels.
Q: What mechanisms prevent field voltage spikes from damaging the internal system bus?
A: Channel-to-channel and channel-to-bus galvanic isolation barriers block high-voltage transients and ground loop currents from reaching internal controller backplanes.
Field Installation Guidelines
Mount the card directly into the assigned I/O slot of the Yokogawa node unit until the retaining latches engage securely. Wire all field contact conductors using shielded multi-core cables. Fasten input wiring to dedicated terminal blocks according to the pin assignment diagram. Route discrete signal lines in separate cable trays away from high-voltage AC distribution circuits and motor drive power leads. Connect the cable shield to a single protective earth point on the cabinet grounding bar to ensure noise suppression.
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| Warranty | 12 Months |
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