NFDR541-P00 Yokogawa STARDOM Datasheet & Technical Manual

Yokogawa NFDR541-P00 STARDOM FCN FCJ 16 Channel Relay Output Module

Yokogawa NFDR541-P00 STARDOM FCN FCJ 16 Channel Relay Output Module

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Yokogawa NFDR541-P00 STARDOM Relay Output Module Configured for dry-contact switching of field actuators in FCN and FCJ autonomous control systems,...

SKU: NFDR541

Manufacturer: Yokogawa
Product No.: NFDR541
Product Type: Digital Output Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 300g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa NFDR541-P00 STARDOM Relay Output Module

Configured for dry-contact switching of field actuators in FCN and FCJ autonomous control systems, the Yokogawa NFDR541-P00 (NFDR541 Relay Output Module) provides direct physical/electrical execution across Yokogawa STARDOM platforms. The unit converts internal control commands into physical contact closures, driving field loads such as solenoids, motor starters, and pilot indicators. Operating over 16 isolated channels, it manages switching voltages up to 110 VDC or 240 VAC while isolating backplane control logic from external power surges.

Hardware Specifications

Parameter	Specification
Model	NFDR541-P00
Brand	Yokogawa
Origin	Japan
Weight	0.3 kg
Dimensions	33 x 127 x 127 mm
Operating Temp	-10 to +55 deg C
Power Consumption	780 mA at 5 VDC
Module Type	Relay Output Module
Channels	16 output channels
Output Type	Relay contacts (dry contact)
Rated Voltage Range	24 to 110 VDC / 100 to 240 VAC
Max Switching Current	5 A per channel (DC), 3 A per channel (AC)
Isolation Voltage	2000 VAC (channels to power supply)
Connection Type	Pressure clamp terminal
Mounting Type	DIN rail or panel mount

Channel Isolation and Galvanic Relay Integrity

The module utilizes an electro-mechanical relay architecture coupled with a 2000 VAC galvanic isolation barrier between individual channels and the backplane power rail. This physical decoupling blocks high-voltage field spikes, AC line noise, and common-mode voltage offsets from penetrating the backplane control bus. Channel-level switching circuits feature arc suppression pathways designed to handle inductive kickback from solenoid coils and switching relays without degrading internal contact surfaces.

Frequently Asked Questions

Q: What are the current rating differences when switching AC versus DC loads?

A: Each individual relay channel supports up to 5 A for DC resistive/inductive loads (24 to 110 VDC) and up to 3 A for AC loads (100 to 240 VAC).

Q: Can channels with different operating voltages be mixed on the same terminal block?

A: Yes, because the module provides galvanic isolation between channels up to 2000 VAC, separate relay channels can switch distinct voltage sources (e.g., 24 VDC on Channel 1 and 120 VAC on Channel 2).

Q: What terminal interface is used for field device wiring?

A: Field connections terminate via integrated pressure clamp terminal blocks, allowing direct wire insertion without requiring specialized crimp lugs.

Field Installation Guidelines

Mount the module on a standard 35 mm DIN rail or secure it to a control cabinet backpanel using the designated mounting chassis slots. Verify that backplane bus power is disabled before inserting or seating the module into the FCN/FCJ controller rack.

Strip field conductor insulation to the specified length and insert wire ends firmly into the pressure clamp terminal block, torquing clamp screws appropriately to prevent loose contact points. Route high-power AC output cables separately from low-voltage DC analog signal lines and communication buses within cabinet wiring trunks to prevent electromagnetic noise induction. Provide external transient voltage suppressors or flyback diodes across highly inductive field loads (such as heavy solenoid coils) to extend internal relay contact service life.

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