NFDV157-S00 Yokogawa Digital Input Module

NFDV157-S00 Yokogawa CENTUM VP Digital Input Module

NFDV157-S00 Yokogawa CENTUM VP Digital Input Module

Availability: 20 left in stock

Yokogawa NFDV157-S00 Digital Input Module Configured for discrete field signal acquisition in CENTUM VP and ProSafe-RS control platforms, the Yokogawa...

SKU: NFDV157-S00 S2

Manufacturer: Yokogawa
Product No.: NFDV157-S00 S2
Product Type: Digital Input Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 300g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa NFDV157-S00 Digital Input Module

Configured for discrete field signal acquisition in CENTUM VP and ProSafe-RS control platforms, the Yokogawa NFDV157-S00 (NFDV157 Digital Input Module) provides direct physical/electrical execution across 32 isolated input channels. The unit converts 24 VDC dry contact and logic signals into deterministic digital states while isolating field transients from backplane system logic.

Suffix Breakdown & Model Matrix

Code	Specification
NFDV157	Digital Input Module (32-channel, 24 VDC, isolated)
-S	Standard type
0	Always 0
0	Basic type

Hardware Specifications

Parameter	Specification
Model	NFDV157-S00
Brand	Yokogawa
Origin	Japan
Weight	0.3 kg
Dimensions	130 x 107 x 32 mm
Operating Temp	-20 to +60 deg C
Power Consumption	Standard backplane power supply
Input Voltage Range	24 VDC nominal (18 to 26.4 VDC)
Channel Density	32 isolated channels
Input Signal Type	Dry contact closure or 24 VDC logic
Terminal Type	Pressure clamp terminal support
Protection	Built-in short-circuit and over-voltage protection

4-20 mA HART Loop Protocol & Channel-to-Channel Isolation

The module delivers robust signal separation via channel-to-channel isolation circuits designed to block ground loops, electrical surges, and common-mode noise across industrial environments. While processing discrete field inputs, the internal architecture shares backplane real-time diagnostic frameworks common to Yokogawa DCS instruments using HART and fieldbus topologies. Galvanic barriers safeguard core processing logic against external field faults, ensuring signal integrity across high-density I/O racks.

Frequently Asked Questions

Q: Can engineers hot-swap the module during active controller operation?

A: Hot-swapping depends on the field control unit rack configuration. Technicians must ensure that removing the module does not disrupt critical safety loops in ProSafe-RS systems.

Q: How does the module handle over-voltage conditions on individual input channels?

A: Integrated protection circuits limit excess current and clamp transient voltages to protect internal optocouplers and processing logic from field wiring spikes.

Q: What type of wiring connection does the terminal interface support?

A: The module interface accommodates pressure clamp terminals for rapid field conductor termination without requiring manual soldering.

Field Installation Guidelines

De-energize field wiring before connecting 24 VDC input lines to terminal blocks.
Verify input power polarity across all channel terminals to prevent reverse voltage stress.
Strip field conductor ends to specified lengths and clamp securely into terminal slots, verifying metal-to-metal contact.
Route field signal cables through grounded metallic conduits, maintaining separation from high-voltage motor power lines.
Ground all cable shielding drain wires directly to the cabinet earth bar.
Align the module base with rack guide slots and press firmly until the rear connector seats into the backplane assembly.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.