Yokogawa F3YD14-5A Transistor Output

YOKOGAWA F3YD14-5A Transistor Output Module

Product Introduction

The F3YD14-5A extends the Yokogawa FA-M3 series with a higher point count for panels that need more discrete outputs per slot. This is a sink-type (current-sinking) transistor output module, so each active point pulls its load toward the negative rail. Machine builders commonly apply it to drive small DC relays, pilot lamps, pneumatic valve islands, and indicator panels. Photocoupler isolation separates the field side from the internal logic, which shields the CPU from switching noise and voltage transients.

Technical Specifications

The F3YD14-5A delivers fourteen output channels arranged in two groups. One common serves eight points, and the other serves six points, giving engineers flexibility when wiring separate load circuits. Each point carries a continuous load current of 0.5 A, while each common line handles up to 2 A. Rated load voltage is 12-24 VDC. Response time reaches 1 ms maximum for both OFF-to-ON and ON-to-OFF transitions, so the module keeps pace with fast machine sequences. Besides that, the ON voltage drop stays at 0.5 VDC or below, which limits heat buildup inside the cabinet. Off-state leakage current remains under 0.1 mA, preventing phantom activation of sensitive loads.

Isolation relies on a photocoupler rated for 1500 VAC for one minute between external terminals and internal circuitry. Moreover, an active clamp circuit serves as the built-in surge protector, absorbing inductive kickback from relays and solenoids. For heavily inductive loads, an extra surge suppressor on the load side is still recommended to keep spike energy within safe limits.

Module Power and Physical Traits

The F3YD14-5A consumes 120 mA from the 5 VDC backplane bus. An external 12-24 VDC supply at 20 mA feeds the output driver circuit. At 160 g, the module remains light enough for straightforward handling during panel assembly. Field wiring lands on an 18-point terminal block with M3.5 screws, which grips ring terminals firmly and resists vibration on running machinery.

Environmental and Mechanical Parameters

Operating temperature spans 0 to 55°C, while storage is permitted from -20°C to 75°C. Humidity remains within 10 to 90% RH non-condensing for both operating and storage states. The installation atmosphere must be free of corrosive gases, flammable gases, and heavy dust, since contamination can degrade optical isolation performance over time.

Installation Guide

1. Power Off: Confirm the FA-M3 rack is fully de-energized before inserting the module.

2. Slot Alignment: Slide the F3YD14-5A along the base unit guide rails until the backplane connector seats firmly.

3. Wiring: Bring the external 12-24 VDC supply to both common terminals. Connect each load between the positive supply and its output terminal (sink type).

4. Inductive Load Protection: Fit a flyback diode across DC relay coils or solenoid valves to clamp voltage spikes.

5. Verification: Reapply power and check the per-point LED indicators. Each LED lights when its output turns ON.

Packaging List

• YOKOGAWA F3YD14-5A Module × 1

• Terminal Block Cover × 1

• Anti-Static Protective Bag × 1

FAQ

Q1: How are the outputs grouped on the F3YD14-5A?
A1: The fourteen points split into two commons. One common covers eight points and the other covers six points, and each common accepts up to 2 A total.

Q2: How does a sink-type output differ from a source-type module?
A2: A sink-type output connects the load to the negative supply rail when ON. A source-type module instead feeds positive voltage to the load, so wiring polarity differs between the two types.

Q3: Can this module switch 24 VDC solenoid valves directly?
A3: Yes, as long as the valve current stays under 0.5 A per point. However, solenoid valves are inductive, so install a surge suppressor across the coil to protect the output transistor.

Q4: How is the F3YD14-5A shipped?
A4: We ship worldwide through Fedex, UPS, and DHL. Each module travels in anti-static packaging inside a rigid carton for safe transit.

Q5: Does the module need an external power supply?
A5: Yes. The backplane supplies 5 VDC logic power, but the output circuit requires an external 12-24 VDC source at 20 mA to operate.